Analog Integrated Circuit Device Data

4

Freescale Semiconductor

34674

PIN CONNECTIONS

PIN CONNECTIONS

Figure 3. 34674 Pin Connections

Table 2. 34674 Pin Definitions

A functional description of each pin can be found in the Functional Pin Description section beginning on page 12.

Pin Number

Pin Name

Pin Function

Formal Name

Definition

1

VIN

Input

Input supply

The supply input.

2

GRN

Output

Green indicator

Indication of the charge status. Open drain output with 6 mA current limit.

3

RED

Output

Red indicator

Indication of the charge status. Open drain output with 6 mA current limit.

4

EN

Input

Enable

Active-low enable logic input.

5

GND

Ground

Ground

Ground.

6

TEMP

Input

NTC interface input

The NTC thermistor interface pin.

7

VREF

Output

NTC interface bias

voltage

The bias voltage for the NTC interface circuit.

8

BAT

Output

Charger output

The charger output pin to the battery.

EPAD

EPAD

N/A

Exposed pad

Exposed pad for thermal dissipation enhancement. Must be soldered on

the large ground plane on the PCB to increase the thermal dissipation.

The pad must be connected to GND electrically.

BAT

VREF

TEMP

GND

VIN

GRN

RED

EN

EPAD

1

2

3

4

8

7

6

5