Analog Integrated Circuit Device Data

2

Freescale Semiconductor

33288

TERMINAL CONNECTIONS

TERMINAL CONNECTIONS

Figure 2. 33288 Terminal Connections

Table 1. 33288 Terminal Definitions

A functional description of each terminal can be found in the Functional Description section beginning on 7.

Terminal

Number

Terminal

Name

Formal Name

Definition

TAB

Supply Voltage

The backside TAB is connected to the power supply of the MC33288DH.

2

CUR R

Load Current Sense

The Current Sense terminal delivers a ratioed amount (1/1000) of the sum of the currents

that can be used to generate signal ground referenced output voltages for use by the

microcontroller.

3

18

IN1

IN2

INPUT Channel 1

INPUT Channel 2

These are the device input terminals which directly control their associated outputs.

4, 9, 10, 11,

12, 17

NC

No Connect

These terminals are not used.

5, 16

DNC

Do Not Connect

These terminals must not be connected.

6, 7, 8

13, 14, 15

OUT1

OUT2

OUTPUT Channel 1

OUTPUT Channel 2

They deliver current to the connected loads and are controlled via the IN1 terminals.

They deliver current to the connected loads and are controlled via the IN2 terminals,

11

GND

Ground

This is the ground terminal of the device.

19

STATUS

Status for Both

Channels

The Fault output is an open drain indication that goes active low when a fault mode

(Openload, Overtemperature) is detected by the device.

20

WLP

Warning Lamp Output

It delivers current through the connected load.

WLP

GND

STATUS

IN2

NC

DNC

OUT2

OUT2

OUT2

NC

NC

CUR R

DNC

OUT1

OUT1

OUT1

NC

NC

IN1

NC

1

2

3

4

5

6

7

8

9

10

20

19

16

15

14

13

12

11

18

17

21

21