MC33888APNB View Datasheet(PDF) - Freescale Semiconductor

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Description

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MC33888APNB

Quad High-Side and Octal Low-Side Switch for Automotive

Freescale Semiconductor 

Freescale Semiconductor, Inc.

FSI 1

WDIN 2

FS 3

VPWR 4

LS4 5

GND 6

LS5 7

LS6 8

GND 9

LS7 10

LS8 11

GND 12

LS9 13

LS10 14

GND 15

LS11 16

VDD 17

SO 18

CS 19

SCLK 20

52 NC

51 NC

50 NC

49 HS0

48 HS0

47 HS0

46 HS0

45 HS0

44 HS0

43 HS0

42 HS1

41 HS1

40 HS1

39 HS1

38 HS1

37 HS1

36 HS1

35 NC

34 NC

33 NC

TERMINAL DEFINITIONS FOR PQFP

Functional descriptions of many of these terminals can be found in the System/Application Information section beginning on

page 19.

Terminal

Terminal

Name

Formal Name

Definition

1

FSI

Fail-Safe Input

The Fail-Safe input terminal level determines the state of the outputs after a

watchdog timeout occurs. This terminal has an internal pullup. If the FSI terminal is

left to float to a logic [1], then HS0 and HS2 will turn on when in the Fail-Safe state.

If the FSI terminal is tied to GND, the watchdog circuit and fail-safe operation will be

disabled, thus allowing operation without a watchdog signal.

2

WDIN

Watchdog Input

This input terminal is a CMOS logic level input that is used to monitor system

operation. If the incoming watchdog signal does not transition within the normal

watchdog timeout range, the device will operate in the Fail-Safe mode. This input

has an active internal pulldown.

3

FS

Fault Status

(Active Low)

This output terminal is an open drain indication that goes active low when a fault

mode is detected by the device. Specific device fault indication is given via the SO

terminal.

4, 26, 27,

58, 59

VPWR

Positive Power Supply

These terminal connects to the positive power supply and are the source input of

operational power for the device.

5

LS4

Low-Side Output 4

Each low-side terminal is one 0.6 Ω low-side output MOSFET drain, which pulls

8

LS6

Low-Side Output 6

current through the connected loads. Each of the outputs is actively clamped at

11

LS8

Low-Side Output 8

53 V. These outputs are current and thermal overload protected. Maximum steady

14

LS10

Low-Side Output 10

state current through each of these outputs is 500 mA.

6, 9, 12, 15

GND

Ground

These terminals serve as the ground for the source of the low-side output

transistors as well as the logic portion of the device.

33888

6

MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA

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