Analog Integrated Circuit Device Data

Freescale Semiconductor

3

33099

PIN CONNECTIONS

PIN CONNECTIONS

Figure 3. 33099 Pin Connections

Table 1. PIN Function Description

Pin Number

Pin Name

Formal Name

Definition

1

GATE

GATE DRIVE

Controls the GATE of the MOSFET to control the alternator field current.

2

BAT

BATTERY

Primary power connection to the system battery.

3

GND

GROUND

Source lamp current and digital ground.

4

LAMP

DRAIN

LAMP DRAIN

Controls the Fault Lamp current.

5

LAMP

GATE

LAMP GATE

Controls the Fault Lamp internal driver as an override function.

6

IGN

IGNITION

Controls the ON or OFF function of the regulator.

7

8

LRC2

LRC1

LOAD RESPONSE

CONTROL 2

LOAD RESPONSE

CONTROL 1

Inputs for selecting the LRC rate.

9

AGND

ANALOG GROUND

Ground connection for analog circuitry.

10

REMOTE

REMOTE

Provides for external Kelvin connection to system battery.

11, 14

NC

NO CONNECT

No internal connection to this pin.

12

LRC TEST

LOAD RESPONSE

CONTROL TEST

Provides acceleration of LRC rate for testing.

13

PHASE

FILTER

PHASE FILTER

Provides access to Phase Resistive Divider for External Phase Filter capacitance.

15

PHASE

PHASE SENSE INPUT

Input for phase voltage.

16

SOURCE

SOURCE

Coupled to source of MOSFET to provide a GATE voltage reference and to monitor

for source shorts to ground.

GATE

GND

LAMP DRAIN

LAMP GATE

IGNITION

LRC2

LRC1

BAT

SOURCE

PHASE

NC

PHASE FILTER

LRC TEST

NC

REMOTE

AGND

2

3

4

5

6

7

8

16

14

13

12

11

10

15

9

1