4-1

File Number

4047.2

HIP0045

1A/50V Octal Low Side Power Driver With

Serial Bus Control and Fault Protection

The HIP0045 is a logic controlled, eight channel Octal Serial

Power Low Side Driver. The serial peripheral interface (SPI)

utilized by the HIP0045 is a serial synchronous bus compatible

with Intersil CDP68HC05, or equivalent, microcomputers. As

shown in the Block Diagram for the HIP0045, each of the open

drain MOS Output Drivers have individual protection for over-

voltage and over-current. Each output channel has separate

output latch control with fault unlatch and diagnostic or status

feedback. Under normal ON conditions, each output driver is in

a low voltage, high current state of saturated turn-on.

Comparators in the diagnostic circuitry monitor the output

drivers to determine if an out of saturation condition exists. If a

fault is sensed, the respective output driver for Channels 0 - 5

have overcurrent latch-off. Channels 6 and 7 are configured for

lamp drivers and have current limiting with over-temperature

latch-off. Channels 0 and 1 have direct parallel drive control for

PWM applications and are ORed with the SPI Bus control. All

channels are SPI Bus controlled and sense the output states

for diagnostic feedback.

The HIP0045 is fabricated in a Power BiMOS IC process,

and is intended for use in automotive and other applications

having a wide range of temperature and electrical stress

conditions. It is particularly suited for driving relays,

solenoids and lamps in applications where low standby

power, high operating voltage, and high output current in

high ambient temperature conditions is required.

The HIP0045 is in a 20 lead plastic Power SOP (PSOP)

Package with an integral copper ‘slug’ to conduct heat directly

to a PCB interface or heat sink on the bottom of the package.

Driver Block Diagram

Features

• Octal NDMOS Output Drivers in a High Voltage Power

BiMOS Process

• Over-Stress Protection - Each Output:

- Over-Current Protection . . . . . . . . . . . . . . . . . . . 1A Min

- Over-Voltage Clamp Protection . . . . . . . . . . . . 50V Typ

- Thermal Shutdown Protection (2 Channels)

• Open-Load Detection

• Power BiMOS Output Configuration

- Current Latch-Off Protection for 6 Channels; 2 with

External Drive Input and ORed with SPI Bus Control

- 2 Channels Configured for Lamp Drivers with Current

Limiting and Over-Temperature Latch-Off

• High Speed CMOS Logic Control

- SPI Bus Controlled Interface

- Individual Output Latch

- Individual Fault Unlatch and Feedback

- Common Reset Line

• Low Quiescent Current . . . . . . . . . . . . . . . . . . . 5mA Max

Applications

• Automotive and Industrial Systems

• Solenoids, Relays and Lamp Drivers

• Logic and

µP Controlled Drivers

• Robotic Controls

Pinout

HIP0045 (PSOP WITH HEAT SLUG)

TOP VIEW

Ordering Information

PART NO.

PACKAGE

PKG. NO.

HIP0045AB

-40 to 125

20 Ld PSOP

M20.433

OUT

DRIVER

OC

FAULT/STATUS

REF

OVER-TEMP.

DET. (CH. 6, 7)

SPI AND

DIRECT

INPUT

CONTROL

WITH

FAULT/

STATUS

RESET

OUTPUT

OC LATCH

(CH. 0-5)

OC LIMIT

(CH. 6, 7)

-

+

-

+

INTEGRAL COPPER

HEAT SINK ‘SLUG’

FOR PCB CONTACT

OR EXT. HEAT SINK

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

GND

IN0

MISO

OUT0

OUT2

OUT4

OUT6

MOSI

SCK

GND

GND

CE

RESET

OUT7

OUT5

OUT3

OUT1

IN1

GND

Data Sheet

April 1999

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

http://www.intersil.com or 407-727-9207