Power Management. BD71850MWV Datasheet

BD71850MWV Management. Datasheet pdf. Equivalent

BD71850MWV Datasheet
Recommendation BD71850MWV Datasheet
Part BD71850MWV
Description Programmable Power Management
Feature BD71850MWV; Datasheet Power Management Integrated Circuit BD71850MWV General Description  BD71850MWV is a pr.
Manufacture ROHM
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ROHM BD71850MWV
Datasheet
Power Management Integrated Circuit
BD71850MWV
General Description
BD71850MWV is a programmable Power Management
IC (PMIC) for powering single-core, dual-core, and
quad-core SoCs such as NXP-i.MX 8M Nano. It is
optimized for low BOM cost and compact solution
footprint. It integrates 6 Buck regulators and 6 LDOs to
provide all the power rails required by the SoC and the
commonly used peripherals.
QFN package and pinout support low cost Type 3
(non-HDI) PCB. Programmable power sequencing
and output voltages, flexible power state control for
easier system design and supports a wide variety of
processors and system implementations.
Features
6 Buck Regulators
2.0 MHz Switching Frequency.
(BUCK1, BUCK2, BUCK5, BUCK7, and BUCK8).
1.5MHz Switching Frequency. (BUCK6)
Target Efficiency: 83% to 95%.
Output Current & Voltage.
BUCK1: 3.0 A, 0.7 V to 1.3 V/10 mV step, DVS
BUCK2: 3.0 A, 0.7 V to 1.3 V/10 mV step, DVS
BUCK5: 3.0 A, 0.70 V to 1.35 V/8steps, DVS
BUCK6: 3.0 A, 2.6 V to 3.3 V/100 mV step
BUCK7: 1.5 A, 1.605 V to 1.995 V/8steps
BUCK8: 3.0 A, 0.8 V to 1.4 V/10 mV step
6ch Linear Regulators (6 LDOs)
LDO1: 10 mA, 3.0 V to 3.3 V, 1.6 V to 1.9 V
LDO2: 10 mA, 0.9 V, 0.8 V
LDO3: 300 mA, 1.8 V to 3.3 V
LDO4: 250 mA, 0.9 V to 1.8 V
LDO5: 300 mA, 0.8 V to 3.3 V
LDO6: 300 mA, 0.9 V to 1.8 V
Power Mux Switch
1.8V Input: 500 mΩ(Max)
3.3V Input: 500 mΩ(Max)
32.768 kHz Crystal Oscillator Driver
Power Button Detector
Protection and Monitoring: Soft Start, Power Rails Fault
Detection, UVLO, OVP and TSD
OTP Configurable Power Sequencing
OTP and Software Programmable Output Voltage,
Ramp rates.
Hardware Signaling with SoC for Transition into or out
of Low Power States
Interfaces:
I2C: 100 kHz/400 kHz, 1 MHz
Power-on Reset Output: POR_B, RTC_RESET_B,
Watchdog Reset Input: WDOG_B:
Power State Control:
PMIC_STBY_REQ, PMIC_ON_REQ, PWRON_B
Interrupt to SoC: IRQ_B
Type3 PCB Applicable
Key Specifications
Input Voltage Range (VSYS):
SNVS State Current:
SUSPEND State Current:
IDLE State Current:
RUN State Current:
Operating Temperature Range:
2.7 V to 5.5 V
30 μA(Typ)
115 μA(Typ)
125 μA(Typ)
125 μA(Typ)
-40°C to +85°C
Applications
Streaming Media Boxes and Dongles
AV Receivers and Wireless Sound Bars
Industrial HMI, SBC, IPC and Panel Computer
Package
UQFN56BV7070
W(Typ) x D(Typ) x H(Max)
7.00 mm x 7.00 mm x 1.00 mm
Product structure : Silicon integrated circuit. This product has no designed protection against radioactive rays
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ROHM BD71850MWV
BD71850MWV
Contents
General Description ................................................................................................................................................................1
Features .................................................................................................................................................................................1
Key Specifications...................................................................................................................................................................1
Applications ............................................................................................................................................................................1
Package
W(Typ) x D(Typ) x H(Max) ...........................................................................................................1
1. Introduction.....................................................................................................................................................................7
1.1. Terminology ............................................................................................................................................................7
1.2. System Power Map & Typical Application Circuit ......................................................................................................8
1.3. Pin Configuration .................................................................................................................................................. 10
1.4. Pin Description...................................................................................................................................................... 11
1.5. I/O Equivalence Circuit .......................................................................................................................................... 12
1.6. Power Rail ............................................................................................................................................................ 13
1.7. Register Map ........................................................................................................................................................ 14
1.8. ESD...................................................................................................................................................................... 16
2. Operating Conditions .................................................................................................................................................... 17
2.1. Absolute Maximum Ratings (Ta=25 ˚C).................................................................................................................. 17
2.2. Thermal Resistance .............................................................................................................................................. 17
2.3. Recommended Operating Conditions .................................................................................................................... 18
2.4. Current Consumption ............................................................................................................................................ 18
2.5. Power Reference and Detectors (UVLO)................................................................................................................ 19
3. Power State Control ...................................................................................................................................................... 20
3.1. Power Control Signals........................................................................................................................................... 20
3.1.1. PWRON_B ................................................................................................................................................... 21
3.1.2. PMIC_ON_REQ............................................................................................................................................ 21
3.1.3. PMIC_STBY_REQ........................................................................................................................................ 21
3.1.4. WDOG_B ..................................................................................................................................................... 21
3.1.5. RTC_RESET_B ............................................................................................................................................ 22
3.1.6. POR_B......................................................................................................................................................... 22
3.2. Power States ........................................................................................................................................................ 23
3.2.1. Power State Diagram .................................................................................................................................... 23
3.2.2. Power State Register .................................................................................................................................... 24
3.2.3. Power State Definition................................................................................................................................... 26
3.2.4. Power State Control Events........................................................................................................................... 27
3.2.4.1.
Reset Event .......................................................................................................................................... 27
3.2.4.2.
Emergency Shutdown Event.................................................................................................................. 29
3.2.5. Power State Transitions................................................................................................................................. 29
3.2.5.1.
OFF to READY ..................................................................................................................................... 29
3.2.5.2.
READY to SNVS................................................................................................................................... 30
3.2.5.3.
SNVS to RUN ....................................................................................................................................... 33
3.2.5.4.
RUN to IDLE......................................................................................................................................... 35
3.2.5.5.
IDLE to RUN......................................................................................................................................... 35
3.2.5.6.
RUN to SUSPEND ................................................................................................................................ 35
3.2.5.7.
SUSPEND to RUN ................................................................................................................................ 35
3.2.5.8.
IDLE to SUSPEND................................................................................................................................ 36
3.2.5.9.
Emergency Shutdown ........................................................................................................................... 36
3.2.5.10. VR Fault ............................................................................................................................................... 37
3.2.5.11. EMG to OFF ......................................................................................................................................... 41
3.2.5.12. EMG to READY .................................................................................................................................... 42
3.2.5.13. EMG_STAY Condition ........................................................................................................................... 43
3.2.5.14. Warm Reset.......................................................................................................................................... 43
3.2.5.15. PWROFF.............................................................................................................................................. 44
3.2.5.16. PWROFF to READY ............................................................................................................................. 46
3.2.5.17. PWROFF to SNVS................................................................................................................................ 46
3.2.5.18. PWRON_B Functionality ....................................................................................................................... 46
3.3. Power Sequence................................................................................................................................................... 48
3.3.1. Power ON Sequence..................................................................................................................................... 48
3.3.2. Power OFF Sequence................................................................................................................................... 50
3.3.3. RUN to IDLE................................................................................................................................................. 54
3.3.4. IDLE to RUN................................................................................................................................................. 55
3.3.5. RUN to SUSPEND........................................................................................................................................ 56
3.3.6. SUSPEND to RUN........................................................................................................................................ 57
3.3.7. IDLE to SUSPEND........................................................................................................................................ 58
3.3.8. Emergency Shutdown ................................................................................................................................... 59
3.3.9. Warm Reset.................................................................................................................................................. 60
3.3.10. Reset Source Indicators ................................................................................................................................ 61
4. I2C and Interrupt ........................................................................................................................................................... 62
4.1. I2C Bus Interface .................................................................................................................................................. 62
4.1.1. I2C Bus Interface Overview ........................................................................................................................... 62
4.1.2. I2C Bus Interface Electrical Characteristics .................................................................................................... 63
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ROHM BD71850MWV
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4.1.3. Device Addressing ........................................................................................................................................ 65
4.1.4. Write / Read Operation.................................................................................................................................. 66
4.2. Interrupt................................................................................................................................................................ 67
4.2.1. Interrupt Overview......................................................................................................................................... 67
5. Power Rails .................................................................................................................................................................. 70
5.1. Output Voltage Range ........................................................................................................................................... 70
5.2. Details of Buck...................................................................................................................................................... 72
5.2.1. BUCK1 ......................................................................................................................................................... 72
5.2.1.1.
BUCK1 Block Diagram .......................................................................................................................... 72
5.2.1.2.
BUCK1 Electrical Characteristics ........................................................................................................... 73
5.2.1.3.
BUCK1 Control ..................................................................................................................................... 74
5.2.2. BUCK2 ......................................................................................................................................................... 76
5.2.2.1.
BUCK2 Block Diagram .......................................................................................................................... 76
5.2.2.2.
BUCK2 Electrical Characteristics ........................................................................................................... 77
5.2.2.3.
BUCK2 Control ..................................................................................................................................... 78
5.2.3. BUCK5 ......................................................................................................................................................... 80
5.2.3.1.
BUCK5 Block Diagram .......................................................................................................................... 80
5.2.3.2.
BUCK5 Electrical Characteristics ........................................................................................................... 81
5.2.3.3.
BUCK5 Control ..................................................................................................................................... 82
5.2.4. BUCK6 ......................................................................................................................................................... 83
5.2.4.1.
BUCK6 Block Diagram .......................................................................................................................... 83
5.2.4.2.
BUCK6 Electrical Characteristics ........................................................................................................... 84
5.2.4.3.
BUCK6 Control ..................................................................................................................................... 85
5.2.5. BUCK7 ......................................................................................................................................................... 86
5.2.5.1.
BUCK7 Block Diagram .......................................................................................................................... 86
5.2.5.2.
BUCK7 Electrical Characteristics ........................................................................................................... 87
5.2.5.3.
BUCK7 Control ..................................................................................................................................... 88
5.2.6. BUCK8 ......................................................................................................................................................... 89
5.2.6.1.
BUCK8 Block Diagram .......................................................................................................................... 89
5.2.6.2.
BUCK8 Electrical Characteristics ........................................................................................................... 90
5.2.6.3.
BUCK8 Control ..................................................................................................................................... 91
5.3. Details of LDO ...................................................................................................................................................... 92
5.3.1. LDO1............................................................................................................................................................ 92
5.3.1.1.
LDO1 Block Diagram............................................................................................................................. 92
5.3.1.2.
LDO1 Electrical Characteristics ............................................................................................................. 93
5.3.1.3.
LDO1 Control........................................................................................................................................ 94
5.3.2. LDO2............................................................................................................................................................ 95
5.3.2.1.
LDO2 Block Diagram............................................................................................................................. 95
5.3.2.2.
LDO2 Electrical Characteristics ............................................................................................................. 96
5.3.2.3.
LDO2 Control........................................................................................................................................ 96
5.3.3. LDO3............................................................................................................................................................ 97
5.3.3.1.
LDO3 Block Diagram............................................................................................................................. 97
5.3.3.2.
LDO3 Electrical Characteristics ............................................................................................................. 98
5.3.3.3.
LDO3 Control........................................................................................................................................ 99
5.3.4. LDO4.......................................................................................................................................................... 100
5.3.4.1.
LDO4 Block Diagram........................................................................................................................... 100
5.3.4.2.
LDO4 Electrical Characteristics ........................................................................................................... 101
5.3.4.3.
LDO4 Control...................................................................................................................................... 102
5.3.5. LDO5.......................................................................................................................................................... 103
5.3.5.1.
LDO5 Block Diagram........................................................................................................................... 103
5.3.5.2.
LDO5 Electrical Characteristics ........................................................................................................... 104
5.3.5.3.
LDO5 Control...................................................................................................................................... 105
5.3.6. LDO6.......................................................................................................................................................... 106
5.3.6.1.
LDO6 Block Diagram........................................................................................................................... 106
5.3.6.2.
LDO6 Electrical Characteristics ........................................................................................................... 107
5.3.6.3.
LDO6 Control...................................................................................................................................... 108
5.4. MUXSW ............................................................................................................................................................. 109
5.4.1. MUXSW Block Diagram .............................................................................................................................. 109
5.4.2. MUXSW Electrical Characteristics ............................................................................................................... 110
6. 32.768 kHz Crystal Oscillator Driver .............................................................................................................................111
6.1. 32.768 kHz Crystal Oscillator Driver Block Diagram ..............................................................................................111
6.2. 32.768 kHz Crystal Oscillator Driver Electrical Characteristics ...............................................................................111
7. Operational Notes ....................................................................................................................................................... 112
8. Ordering Information ................................................................................................................................................... 114
9. Marking Diagram......................................................................................................................................................... 114
10. Physical Dimension and Packing Information ........................................................................................................... 115
11. Revision History...................................................................................................................................................... 116
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