1

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

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Features

• Output Current Drive Capability

- All Outputs ON, Equal . . . . . . . . . . . . . . 0.625A Each

- Per Output Individually . . . . . . . . . . . . . . . . . 1A Each

- Maximum Total of Outputs ON . . . . . . . . . . . . . . . .5A

• High Voltage Power BiMOS Outputs

- 8 Open Drain NDMOS Drivers

- Individual Output Latch

- Over-Current Limit Protection . . . . . . . . . . . . . 1.05A

- Over-Voltage Clamp Protection. . . . . . . . . . . . . . . 30V

• High Speed CMOS Logic Control

- SPI Bus Controlled Interface

- Individual Fault Unlatch and Feedback

- Common Reset Line

Applications

• Automotive and Industrial Systems

• Solenoids, Relays and Lamp Drivers

• Logic and

µP Controlled Drivers

• Robotic Controls

Description

The CA3282 is a logic controlled, eight channel octal power

driven. The serial peripheral interface (SPI) utilized by the

CA3282 is a serial synchronous bus compatible with Intersil

CDP68HC05, or equivalent, microcomputers. As shown in

the Block Diagram for the CA3282 each of the open drain

NDMOS output drivers has individual protection for over-volt-

age and over-current. Each output channel has separate

output latch control with fault unlatch and diagnostic feed-

back. Under normal ON conditions, each output driver is in a

low, saturation state. Comparators in the diagnostic circuitry

monitor the output drivers to determine if an out of saturation

condition exists. If a comparator senses a fault, the respec-

tive output driver is unlatched. In addition, over current pro-

tection is provided with current limiting in each output,

independent of the diagnostic feedback loop.

The CA3282 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 lamps, relays, and solenoids in

applications where low operating power, high breakdown volt-

age, and high output current at high temperatures is required.

The CA3282 is supplied in 15 lead plastic SIP package with

lead forms for either vertical or surface mount.

Ordering Information

PART

NUMBER

TEMP.

PACKAGE AND

LEAD FORM

PKG

NO.

CA3282AS1

-40 to 125

15 Ld Plastic SIP

Staggered Vertical

Z15.05A

CA3282AS2

-40 to 125

15 Ld Plastic SIP

Surface Mount

Z15.05B

Pinout

CA3282 (SIP)

TOP VIEW

Block Diagram

NOTE:

HEAT SINK TAB

INTERNALLY

CONNECTED TO

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

OUTPUT 4

OUTPUT 5

OUTPUT 6

OUTPUT 7

RESET

MISO

MOSI

SCK

CE

OUTPUT 0

OUTPUT 1

OUTPUT 2

OUTPUT 3

MOSI

SCK

MISO

CE

RESET

SHIFT

REGISTER

OUTPUT

LATCH

CURRENT

LIMIT

CONTROL

LOGIC

DIAGNOSTIC

CIRCUITRY

OUTPUT #0

(1 OF 8)

TO DRIVERS

1 THRU 7

June 1998

CA3282

Octal Low Side Power Driver

with Serial Bus Control

File Number

2767.6