Analog Integrated Circuit Device Data

4

Freescale Semiconductor

33931

PIN CONNECTIONS

41

CCP

Analog

Output

Charge Pump

Capacitor

External reservoir capacitor connection for the internal charge pump;

connected to VPWR. Allowable values are 30 nF to 100 nF. Note: This

capacitor is required for the proper performance of the device.

42

IN2

Logic Input

Input 2

Logic input control of OUT2;e.g., when IN2 is logic HIGH, OUT2 is set to

VPWR, and when IN2 is logic LOW, OUT2 is set to PGND. (Schmitt trigger

Input with ~80

μA source so default condition = OUT2 HIGH.)

43

IN1

Logic Input

Input 1

Logic input control of OUT1; e.g., when IN1 is logic HIGH, OUT1 is set to

VPWR, and when IN1 is logic LOW, OUT1 is set to PGND. (Schmitt trigger

Input with ~80

μA source so default condition = OUT1 HIGH.)

44

SF

Logic

Output -

Open Drain

Status Flag

(Active Low)

Open drain active LOW Status Flag output (requires an external pull-up resistor

@

0.3 mA. Maximum permissible pull-up voltage < 7.0 V.)

TAB

AGND

Analog

Ground

Analog Signal

Ground

The low-current analog signal ground must be connected to PGND via low-

impedance path (<10 m

Ω, 0 Hz to 20 kHz). Exposed TAB is also the main

heatsinking path for the device.

12-33

N/C

None

No Connect

Pin is not used

Table 1. 33931 Pin Definitions (continued)

Pin

Pin Name

Pin

Function

Formal Name

Definition