DCIN to GND...........................................................-0.3V to 26V

BST, DHI to GND ....................................................-0.3V to 30V

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

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

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

VL to GND .................................................................-0.3V to 6V

CELL0, CELL1, IBAT, STATUS, CCI, CCV, REF, SETI,

VADJ, DLO, THM/SHDN to GND ............-0.3V to (VL + 0.3V)

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

PGND to GND........................................................-0.3V to 0.3V

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

SSOP (derate 8.00mW/°C above +70°C) ...................640mW

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

Storage Temperature........................................ -60°C to +150°C

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

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

SUPPLY AND REFERENCE

DCIN Input Voltage Range

6

24

V

DCIN Quiescent Supply Current

4

6

mA

VL Output Voltage

5.15

5.40

5.65

V

REF Output Voltage

4.17

4.2

4.23

V

4.16

4.2

4.24

REF Output Load Regulation

10

20

mV/mA

SWITCHING REGULATOR

Oscillator Frequency

270

300

330

kHz

DHI Maximum Duty Cycle

89

93

%

DHI On-Resistance

Output high or low

4

7

Ω

DLO On-Resistance

Output high or low

6

14

Ω

BATT Input Current

5

µA

500

CS Input Current

5

µA

400

BATT, CS Input Voltage Range

0

19

V

CS to BATT Offset Voltage

(Note 1)

±1.5

mV

CS to BATT

Current-Sense Voltage

170

185

205

mV

SETI = 400mV

14

18

22

Absolute Voltage Accuracy

Not including VADJ resistor tolerance

-0.65

+0.65

%

With 1% tolerance VADJ resistors

-0.75

+0.75

MAX745

Switch-Mode Lithium-Ion

Battery-Charger

www.maximintegrated.com

Maxim Integrated │ 2

Absolute Maximum Ratings

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