Management IC. RT8966H Datasheet

RT8966H IC. Datasheet pdf. Equivalent

RT8966H Datasheet
Recommendation RT8966H Datasheet
Part RT8966H
Description Mini Analog Baseband Power Management IC
Feature RT8966H; ® RT8966H Mini Analog Baseband Power Management IC General Description The RT8966H is an analog su.
Manufacture Richtek
Datasheet
Download RT8966H Datasheet




Richtek RT8966H
®
RT8966H
Mini Analog Baseband Power Management IC
General Description
The RT8966H is an analog subsystem which includes a
linear charger, 4 LDOs, a 4-CH current source, and a
multiplexer for USB, UART, microphone, stereo and audio
on a single mini/micro USB connector.
The RT8966H adopts an I2C bus for control and uses an
internal method to determine the connected device.
The USB input provides high speed USB connection. The
audio inputs feature negative rail signal operation to realize
simple DC coupled headset speakers. The RT8966H
provides an internal device detection method by using the
USB ID signal pin and the VBUS voltage. The resistor
values and VBUS voltage determine the unique detection
method of each accessory. The host microprocessor
adopts I2C to control the switch position and read the
results of the accessory detection. The RT8966H can also
detect USB chargers, including dedicated chargers (D+/
Dshorted) and high, power, host/hub chargers.
The RT8966H has a linear charger with maximum 1A
current capability. The charging current and end of charge
current can be controlled by I2C interface. It also provides
a 50mA LDO to support the power of the peripheral circuit.
In factory mode, the RT8966H provides 4.35V/2.3A power
to support system operation.
The RT8966H is available in a thin WQFN-32L 4x4 package.
Features
Hi-Speed USB Operation
Interrupt for Device Insertion and Removal
Interrupt for SEND/END Button Detection
Interrupt for Protection Function
Low Power Microphone Standby Mode
Default Startup Mode for Factory Support
Negative Rail Audio Signal Paths
Internal LDO for Low Noise Microphone Bias
28V Maximum Rating for DC Adapter
Internal Integrated Power MOSFETs of Charger
Support 4.35V/2.3A Factory Mode
I2C Controlled Interface
4 Current Sources with 32-Steps Current Setting
4 LDOs with Programmable Output Voltage
Thin 32-Lead WQFN Package
RoHS Compliant and Halogen Free
Applications
Cellular Phone
Smart Handheld Device
Marking Information
0Y= : Product Code
0Y=YM
DNN
YMDNN : Date Code
Ordering Information
RT8966H
Package Type
QW : WQFN-32L 4x4 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
Pin Configurations
(TOP VIEW)
OUT1
OUT2
VIN
OUT3
OUT4
GND
LED1
LED2
32 31 30 29 28 27 26 25
1 24
2 23
3 22
4
GND
21
5 20
6 33 19
7 18
8 17
9 10 11 12 13 14 15 16
VBUS
VBUS
D-
D+
ID
RES
CAP
MIC
Copyright ©2015 Richtek Technology Corporation. All rights reserved.
DS8966H-00 July 2015
WQFN-32L 4x4
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1



Richtek RT8966H
RT8966H
Typical Application Circuit
Typical Application Circuit with Battery Installed :
RT8966H
3 VIN
VBAT 25, 26
7 LED1
8 LED2
CVBAT
1µF
IOVCC
R1 R2
10k 10k
Interrupt
Micro
Controller
I2C Data
I2C Clock
R3
10k
9 LED3
10 LED4
31 INT
29 SDA
30 SCL
EXPDET 27
VBUS 23, 24
DSS 32
D- 22
D+ 21
1µF
USB 2.0
High Speed
UART
11 DN
12 DP
13 U1
14 U2
ID 20
RES 19
CAP 18
R4
2.2k
Audio
Baseband
15 AUD1
16 AUD2
17 MIC
6, 28, 33 (Exposed Pad)
GND
OUT1 1
OUT2 2
OUT3 4
OUT4 5
C3
1µF
C4
1µF
+
1µF
C2
1µF
PMIC
VBUS
CVBUS
22pF
D-
D+
ID
22pF
GND
CCAP
1µF
C1
1µF
Typical Application Circuit for Factory Mode with no Battery Installed :
RT8966H
3 VIN
7 LED1
VBAT 25, 26
8 LED2
Battery not
Installed for
PTM
Bulk Capacitance needed for
operation without battery
+
CVBAT
1µF
> 40µF
PMIC
IOVCC
R1 R2
10k 10k
Interrupt
Micro
Controller
I2C Data
I2C Clock
R3
10k
9 LED3
10 LED4
31 INT
29 SDA
30 SCL
USB 2.0
High Speed
UART
Audio
11 DN
12 DP
13 U1
14 U2
15 AUD1
16 AUD2
Baseband
17 MIC
6, 28, 33 (Exposed Pad) GND
EXPDET 27
1µF
VBUS 23, 24
DSS 32
1µF
D- 22
D+ 21
ID 20
RES 19
CAP 18
OUT1 1
OUT2 2
OUT3 4
OUT4 5
R4
2.2k
C3
1µF
C4
1µF
CVBUS
22pF
C1
1µF
C2
1µF
VBUS
22µF
D-
D+
ID
22pF
GND
CCAP
1µF
Copyright ©2015 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS8966H-00 July 2015



Richtek RT8966H
RT8966H
Functional Pin Description
Pin No.
Pin Name
Pin Function
1
OUT1
LDO1 Output Voltage.
2
OUT2
LDO2 Output Voltage.
3 VIN LDO Input Power Supply.
4
OUT3
LDO3 Output Voltage.
5
OUT4
LDO4 Output Voltage.
6, 28,
33 (Exposed Pad)
GND
Ground. The exposed pad must be soldered to a large PCB and connected to
GND for maximum power dissipation.
7
LED1
LED1 Current Source Output.
8
LED2
LED2 Current Source Output.
9
LED3
LED3 Current Source Output.
10
LED4
LED4 Current Source Output.
11 DN USB lnout1 for D.
12 DP USB Input2 for D+.
13 U1 UART/USB Full Speed Input1.
14 U2 UART/USB Full Speed Input2.
15
AUD1
Stereo Audio Input1. (Negative rail capable).
16
AUD2
Stereo Audio Input2. (Negative rail capable).
17 MIC Microphone Input.
18
CAP
Internal LDO Output. Connect a 1F ceramic (X5R, X7R or better) capacitor
between CAP and GND. Do not use CAP to power other circuitry.
19
RES
External Microphone Bias Resistor. Connect a resistor (typical 2.2k)
between RES and UlD line.
20 ID USB lD Input. Connect to lD on mini/micro USB connector.
21 D+ Common Output2.Connect to D+ on min/micro USB connector.
22 D- Common Output1.connect to D- on mini/micro USB connector.
23, 24
VBUS
USB VBUS Input. Provides power for internal circuitry in the case VBAT < VBUS
and used to sense presence of voltage on USB VBUS.
25, 26
VBAT
Power Supply Input. Connect to Li-ion battery or other voltage source.
27 EXPDET LDO Output (4.9V). This pin provides 50mA output current.
29
SDA
l2C Serial Data Input/Output. Connect to an external pull up resistor.
30 SCL l2C Serial Clock Input. Connect to an external pull up resistor.
31 lNT Interrupt Output-Open Drain. Connect to an external pull up resistor.
32
DSS
Multiple Use Pin. Used to set Default Startup mode based on dc voltage when
power is applied.
Copyright ©2015 Richtek Technology Corporation. All rights reserved.
DS8966H-00 July 2015
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
3







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