Chemistry-Independent,

Level 2 Smart Battery Charger

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9

Pin Description

Linear Current-Source Output

1

IOUT

Input Voltage for Powering Charger

2

DCIN

Voltage-Regulation-Loop Compensation Point

4

CCV

IC Power Supply. 5.4V linear-regulator output from DCIN.

3

VL

Current-Range Selector. Connecting SEL to VL sets a 4A full-scale current. Leaving SEL

open sets a 3A full-scale current. Connecting SEL to AGND sets a 1A full-scale current.

6

SEL

Battery Voltage Input and Current-Sense Negative Input

8

BATT

Current-Sense Positive Input

7

CS

Current-Regulation-Loop Compensation Point

5

CCI

+4.096V Reference Voltage Output or External Reference Input

9

REF

Open-Drain Interrupt Output

11

INT

Analog Ground

10

AGND

Thermistor Sense Voltage Input

12

THM

Serial Data (need external pull-up resistor)

14

SDA

Power Ground

16

PGND

Voltage DAC Output Filtering Point

15

DACV

Serial Clock (need external pull-up resistor)

13

SCL

High-Side Power MOSFET Driver Output

18

DHI

Power Connection for the High-Side Power MOSFET Driver

20

BST

Power Connection for the High-Side Power MOSFET Driver

19

LX

Low-Side Power MOSFET Driver Output

17

DLO

FUNCTION

PIN

NAME