DS2714: Quad Loose Cell NiMH Charger

4 of 12

PIN DESCRIPTION

PIN

NAME

FUNCTION

1

CC1

Charge Control 1. Turn on and off the charge PNP for Cell 1.

2

CC2

Charge Control 2. Turn on and off the charge PNP for Cell 2.

3

CC3

Charge Control 3. Turn on and off the charge PNP for Cell 3.

4

CC4

Charge Control 4. Turn on and off the charge PNP for Cell 4.

5

LED1

LED 1. Open drain output for LED. Display Cell 1 status.

6

LED2

LED 2. Open drain output for LED. Display Cell 2 status.

7

Device Ground. Return current path for LEDx pins. Both VSS pins must be connected to ground.

8

LED3

LED 3. Open drain output for LED. Display Cell 3 status.

9

LED4

LED 4. Open drain output for LED. Display Cell 4 status.

10

DMSEL

Display Mode Select. Select the LED blink rate.

11

CTST

Cell Test Resistor. Cell test threshold set.

12

TMR

Timer Resistor. Charge timer set.

13

Power-Supply Input. Chip supply input (4.0V to 5.5V).

14

Device Ground. Internally connected to Pin 7. Both VSS pins must be connected to ground.

15

VP1

Voltage Sense 1. Positive terminal sense input for Cell 1.

16

VP2

Voltage Sense 2. Positive terminal sense input for Cell 2.

17

VP3

Voltage Sense 3. Positive terminal sense input for Cell 3.

18

VP4

Voltage Sense 4. Positive terminal sense input for Cell 4.

19

THM1

Thermister 1. Thermister input for Cell 1 and 2.

20

THM2

Thermister 2. Thermister input for Cell 3 and 4.