Power Management. MAX8662 Datasheet

MAX8662 Management. Datasheet pdf. Equivalent

Part MAX8662
Description Power Management
Feature www.DataSheet4U.com 19-0732; Rev 0; 2/07 Power-Management ICs for Single-Cell, Li+ Battery-Operated.
Manufacture Maxim Integrated Products
Datasheet
Download MAX8662 Datasheet




MAX8662
19-0732; Rev 2; 12/10
EVAALVUAAILTAIOBNLEKIT
Power-Management ICs for
Single-Cell, Li+ Battery-Operated Devices
General Description
The MAX8662/MAX8663 power-management ICs
(PMICs) are efficient, compact devices suitable for
smart cellular phones, PDAs, Internet appliances, and
other portable devices. They integrate two synchronous
buck regulators, a boost regulator driving two to seven
white LEDs, four low-dropout linear regulators (LDOs),
and a linear charger for a single-cell Li-ion (Li+) battery.
Maxim’s Smart Power Selector™ (SPS) safely distrib-
utes power between an external power source (AC
adapter, auto adapter, or USB source), battery, and the
system load. When system load peaks exceed the
external source capability, the battery supplies supple-
mental current. When system load requirements are
small, residual power from the external power source
charges the battery. A thermal-limiting circuit limits bat-
tery-charge rate and external power-source current to
prevent overheating. The PMIC also allows the system
to operate with no battery or a discharged battery.
The MAX8662 is available in a 6mm x 6mm, 48-pin TQFN
package, while the MAX8663, without the LED driver, is
available in a 5mm x 5mm, 40-pin TQFN package.
Applications
Smart Phones and PDAs
MP3 and Portable Media Players
Palmtop and Wireless Handhelds
Pin Configurations
Features
o Two 95%-Efficient 1MHz Buck Regulators
Main Regulator: 0.98V to VIN at 1200mA
Core Regulator: 0.98V to VIN at 900mA
o 1MHz Boost WLED Driver
Drives Up to 7 White LEDs at 30mA (max)
PWM and Analog Dimming Control
o Four Low-Dropout Linear Regulators
1.7V to 5.5V Input Range
15µA Quiescent Current
o Single-Cell Li+ Charger
Adapter or USB Input
Thermal-Overload Protection
o Smart Power Selector (SPS)
AC Adapter/USB or Battery Source
Charger-Current and System-Load Sharing
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX8662ETM+
-40°C to +85°C
48 TQFN-EP*
6mm x 6mm x 0.8mm
MAX8663ETL+
-40°C to +85°C 40 TQFN-EP*
5mm x 5mm x 0.8mm
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Typical Operating Circuit
TOP VIEW
36 35 34 33 32 31 30 29 28 27 26 25
EN6 37
EN7 38
LX3 39
PG3 40
OUT6 41
IN67 42
OUT7 43
VL 44
SL1 45
SL2 46
PSET 47
POK 48
MAX8662
24 FB1
23 PWM
22 EN5
21 EN4
20 OUT5
19 IN45
18 OUT4
17 GND
16 REF
15 CT
EP 14 ISET
13 THM
1 2 3 4 5 6 7 8 9 10 11 12
DC/USB
INPUT
PWR OK
CHARGE
STATUS
CHARGE
ENABLE
OUT4–OUT7
VOLTAGE
SELECT
DC SYS
BAT
POK
CHG MAX8662
MAX8663 LX1
CEN
LX2
EN1
LX3
EN2
EN3
(MAX8662 ONLY)
EN4
EN5 CS
EN6
OUT4
EN7
OUT5
SL1 OUT6
SL2 OUT7
TO SYSTEM
POWER
Li+
BATTERY
OUT1
0.98V TO VIN / 1.2A
OUT2
0.98V TO VIN / 0.9A
TO SYS
OUT3
30mA
WLED
500mA
150mA
300mA
150mA
TQFN
(6mm x 6mm)
Pin Configurations continued at end of data sheet.
Smart Power Selector is a trademark of Maxim Integrated
Products, Inc.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.



MAX8662
Power-Management ICs for
Single-Cell, Li+ Battery-Operated Devices
ABSOLUTE MAXIMUM RATINGS
LX3 to GND ............................................................-0.3V to +33V
DC_ to GND..............................................................-0.3V to +9V
BAT_, CEN, CHG, EN_, PEN_, POK, PV_, PWM,
SYS_, LX1, CS, LX2 to GND .................................-0.3V to +6V
VL to GND ................................................................-0.3V to +4V
BRT, CC3, FB_, IN45, IN67, OVP, REF,
SL_ to GND ...........................................-0.3V to (VSYS + 0.3V)
CT, ISET, PSET, THM to GND .....................-0.3V to (VVL + 0.3V)
OUT4, OUT5 to GND................................-0.3V to (VIN45 + 0.3V)
OUT6, OUT7 to GND................................-0.3V to (VIN67 + 0.3V)
PG_ to GND...........................................................-0.3V to +0.3V
BAT1 + BAT2 Continuous Current ...........................................3A
SYS1 + SYS2 Continuous Current (2 pins) ..............................3A
LX_ Continuous Current ........................................................1.5A
Continuous Power Dissipation (TA = +70°C)
40-Pin 5mm x 5mm TQFN
(derate 35.7mW/°C above +70°C)
(multilayer board) .......................................................2857mW
48-Pin 6mm x 6mm TQFN
(derate 37mW/°C above +70°C) (multilayer board)...2963mW
Operating Temperature Range ..........................-40°C to +85°C
Junction Temperature Range ............................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS (Input Limiter and Battery Charger)
(VDC = 5V, VBAT = 4V, VCEN = 0V, VPEN_ = 5V, RPSET = 3k, RISET = 3.15k, CCT = 0.068µF, TA = -40°C to +85°C, unless otherwise
noted.) (Note 1)
PARAMETER
INPUT LIMITER
DC Operating Range
DC Undervoltage Threshold
DC Overvoltage Threshold
DC Supply Current
DC Shutdown Current
SYMBOL
CONDITIONS
VDC
VDC_L
VDC_H
(Note 2)
VDC rising, 500mV hysteresis
VDC rising, 100mV hysteresis
ISYS = IBAT = 0mA, VCEN = 0V
ISYS = IBAT = 0mA, VCEN = 5V
VDC = 5V, VCEN = 5V, VPEN1 = VPEN2 = 0V (USB
suspend mode)
MIN TYP MAX UNITS
4.1 8.0 V
3.9 4.0 4.1
V
6.6 6.9 7.2
V
1.5
mA
0.9
110 180 µA
DC-to-SYS Dropout
On-Resistance
RDC_SYS VDC = 5V, ISYS = 400mA, VCEN = 5V
0.1 0.2
DC-to-BAT Dropout
Threshold
VDR_DC_BAT
When VSYS regulation and charging stops, VDC
falling, 150mV hysteresis
20 50 85 mV
VL Voltage
SYS Regulation Voltage
VVL
VSYS_REG
IVL = 0 to 10mA
VDC = 5.8V, ISYS = 1mA, VCEN = 5V
VPEN1 = 5V, VPEN2 = 5V,
RPSET = 1.5k
3.1
5.2
1800
3.3
5.3
2000
3.5
5.4
2200
V
V
DC Input Current Limit
IDC_LIM
VDC = 5V, VSYS = 4.0V
VPEN1 = 5V, VPEN2 = 5V,
RPSET = 3k
VPEN1 = 5V, VPEN2 = 5V,
RPSET = 6k
900 1000 1100
450 500 550
mA
VPEN1 = 0V, VPEN2 = 5V
(500mA USB mode)
450 475
500
PSET Resistance Range
Input Limiter Soft-Start Time
VPEN1 = VPEN2 = 0V
(100mA USB mode)
RPSET Guaranteed by SYS current limit
TSS_DC_SYS Current-limit ramp time
80 90 100
1.5 6.0 k
1.5 ms
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