Stand-Alone Switch-Mode

Lithium-Ion Battery-Charger Controller

2

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

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.

CSSP, CSSN, DCIN to GND ...................................-0.3V to +30V

BST, DHI to GND....................................................-0.3V to +36V

BST to LX..................................................................-0.3V to +6V

DHI to LX ..........................................-0.3V to ((BST - LX) + 0.3V)

LX to GND ...............................................-0.3V to (CSSN + 0.3V)

FULLCHG, FASTCHG, FAULT to GND ..................-0.3V to +30V

VL, VLO, SHDN, CELL, TIMER1, TIMER2, CCI,

CCS, CCV, REF, ISETIN, ISETOUT, VADJ,

THM to GND ........................................................-0.3V to +6V

DLO to GND...............................................-0.3V to (VLO + 0.3V)

BATT, CS to GND ...................................................-0.3V to +20V

PGND to GND, CSSP to CSSN..............................-0.3V to +0.3V

VL to VLO ..............................................................-0.3V to +0.3V

VL Source Current...............................................................50mA

28-Pin QSOP (derate 10.8mW/°C above +70°C)........860mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

V

REF Output Voltage

SWITCHING REGULATOR

SUPPLY AND REFERENCE

With 1% VADJ resistors

-1

+1

Absolute Voltage Accuracy

Not including VADJ resistor tolerances

-0.8

+0.8

%

4.386

4.421

4.453

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

µA

0.1

5

BATT, CS Input Current

µA

0.1

10

LX Leakage

Ω

7

DHI, DLO On-Resistance

µA

210

CSSN + CSSP Off-State Leakage

%

97

98

LX Maximum Duty Cycle

kHz

270

300

330

PWM Oscillator Frequency

mA

57

DCIN Quiescent Supply Current

V

628

DCIN Input Voltage Range

mV

614

REF Load Regulation

mV

26

REF Line Regulation

4.179

4.20

4.221

V

0.05

0.155

DCIN to BATT Undervoltage Threshold,

DCIN Falling

V

0.19

0.40

DCIN to BATT Undervoltage Threshold,

DCIN Rising

V

5.10

5.40

5.70

VL Output Voltage

mV

44

65

VL Output Load Regulation

225

500

BATT, CS Input Voltage Range

CELL = float, GND, VL, or REF (Note 1)

019

4.167

4.2

4.233

V

V/cell

Battery Regulation Voltage Adjustment

Range

3.948

3.979

4.010

V/cell