Intersil Corporation CA3292A, CA3272A Datasheet

July 1997

CA3272A, CA3292A

Quad-Gated Inverting Power Drivers with Fault

Mode Diagnostic Flag Output

Features

• Load Current Switching 600mA

• Suitable for Resistive or Inductive Loads

• Fault Mode Diagnostic Flag Output

• CA3292A Over-Voltage Zener Clamp

• Independent Over-Current Limiting

• Independent Over-Temperature Shutdown

• Temperature Shutdown Hysteresis

• 5V CMOS or TTL Input Logic

• High Dissipation Power-Frame Package

o

• Operating Temperature Range -40

C to 125oC

Applications System Applications

• Solenoids • Automotive

• Relays • Appliance

• Lamps • Industrial Control

• Steppers • Robotics

• Injectors

• Motors

Ordering Information

TEMP.

PART NUMBER

CA3272AQ -40 to 125 28 Ld PLCC N28.45
CA3292AQ -40 to 125 28 Ld PLCC N28.45
CA3272AM -40 to 125 28 Ld SOIC M28.3
CA3292AM -40 to 125 28 Ld SOIC M28.3

RANGE (oC) PACKAGE

PKG.

NO.

Description

The CA3272A and CA3292A are Quad-Gated Inverting Power
Drivers for interfacing low-level logic to inductive and resistive
loads such as: relays, solenoids, AC and DC motors and resis­tive loads such as incandescent lamps and other power drivers .
Each output is an open collector protected power transistor
driver. The CA3292A is similar to the CA3272A, except for an
added collector-to-base Zener diode that provides over-voltage
clamping protection on each power switching output. The
CA3292A block diagram is shown for one switching channel
with fault detection logic plus the output fault driver circuit for all
four switching channels. The FAULT output pin provides a flag
output when a fault condition occurs. All four Output Power
Driver stages are shown in the Block Diagrams .

The ENABLE input is common to each of the four power
switches and when low, disables the FAULT output. From the
Input to Output, each switch is inverting. When IN is high, OUT
is low and the transistor switch is “ON” (conducting). The block
diagram shows the functional logic associated with fault detec­tion. The Fault Sense circuit detects the IN and OUT states and
switches Q
transistor Q
pin. A resistive load from the FAULT pin to the power supply is
used to detect a fault as a low state. Both shorted and open
load conditions are detected.

Note: The CA3272A replaces the CA3272 for new designs.
Refer to the Fault Sink Current specifications when making
design changes. The CA3272A and CA3292A have increased
pull-down current drive from the FAULT output pin.

“ON” if a fault is detected. When a fault is detected,

F

activates a current sink pull-down at the FAULT

F

Pinouts

CA3272A, CA3292A (PLCC)

TOP VIEW

OUT B

NC

OUT A

OUT B

INDEX

GND

5

GND

6
7

GND

8

GND

9

GND

10

GND

11

GND

12 13 14 15 16 17 18

OUT C

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207

FAULT

1234

NC

NC

OUT D

| Copyright © Intersil Corporation 1999

IN A

IN D

IN B

IN C

ENABLE

262728

CC

V

GND

25

GND

24

GND

23

GND

22
21

GND

20

GND

19

GND

GND
GND
GND
GND

OUT C

1

CA3272A, CA3292A (SOIC)

TOP VIEW

1
2

NC
NC

3
4

NC

5

NC

6
7
8
9

NC

10

NC

11

NC

12
13

NC

14

28

OUT A
FAULT

27

IN A

26

IN B

25

ENABLE

24

GND

23

GND

22

GND

21

GND

20

NC

19
18

V

CC

17

IN C

1615IN D

OUT D

File Number 2223.7

Block Diagram of the CA3272A

A

ENABLE

CA3272A, CA3292A

V

CC

IN D

IN C

IN B

IN A

FAULT

F

T

LIM

I

LIM

F

T

LIM

I

LIM

F

T

LIM

I

LIM

F

T

LIM

I

LIM

Q

D

0.02Ω

Q

C

0.02Ω

Q

B

0.02Ω

Q

A

0.02Ω

OUT D

OUT C

OUT B

OUT A

TRUTH TABLE

ENABLE IN OUT

HHL
HLH
LXH

H = High, L = Low, X = Don’t Care

Block Diagram of the CA3292A

(1 of 4 Outputs Shown with Expanded Fault Logic)

NOTE: The CA3292A is identical to the CA3272A except for the
collector-to-base Zener diode on each low side power output driver
(shown here as ZA). The Zener diode clamp is used as an over­voltage clamp to protect the output when switching inductive loads.
When the output voltage exceeds the Zener threshold, QA conducts
to suppress further increase in output voltage. The fault sense and
fault flag logic circuits are the same in the CA3272A and CA3292A.

ENABLE LINE
TO B, C AND D
INPUTS AND
FAULT OUTPUT

ENABLE

IN A

2

FAULT INPUT

FROM B, C, D

CHANNELS

CHANNEL A

1 OF 4

OUTPUTS

FAULT

FLAG LOGIC

FAULT SENSE
CHANNEL A

T

LIM

I

LIM

FAULT

Q

F

4V

Z

A

Q

A

0.02Ω

OUT

CA3272A, CA3292A

Absolute Maximum Ratings Thermal Information

Output Voltage, VO (CA3272A) . . . . . . . . . . . . . . . . . . . . . . . . +60V

Output Sustaining Voltage, V

Output Voltage, VO (CA3292A) . . . . . . . . . . . . . . . . . . . . . V

(CA3272A) . . . . . . . . . . . 40V

CE(SUS)

CLAMP

Maximum Output Clamp Energy (CA3292A) . . . . . . . . . . . (Note 8)

Output Transient Current, (Note 1) . . . . . . . . . . . . . . . . . . 1.6A Max.

Output Load Current, (Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . .0.7A

Supply Voltage, VCC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7V

Logic Input Voltage, VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V

FAULT Output Voltage, VF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V

Operating Conditions

Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 125oC

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

Thermal Resistance (Typical, Note 3) θJA (oC/W)
For surface mount without added copper ground area:

CA3272AQ, CA3292AQ (PLCC) . . . . . . . . . . . . . . 45oC/W

CA3272AM, CA3292AM (SOIC). . . . . . . . . . . . . . . 56oC/W

For surface mount with 2 sq. in. of added copper ground area:

CA3272AQ, CA3292AQ (PLCC) . . . . . . . . . . . . . . 36oC/W

CA3272AM, CA3292AM (SOIC). . . . . . . . . . . . . . . 35oC/W

See Maximum Power Dissipation vs Temperature Curves,
Figures 6 and 7.

Maximum Junction Temperature (Plastic Packages) . . . . . . . 150oC

Maximum Storage Temperature Range . . . . . . . . . .-65oC to 150oC

Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300oC

(SOIC, PLCC - Lead Tips Only)

Electrical Specifications T

= -40oC to 125oC, VCC = 5.5V, Unless Otherwise Specified

A

PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS

OUTPUT PARAMETERS

Output (OFF) Current I

Output Sustaining Voltage: CA3272A V
Output Clamp Voltage: CA3292A V
Collector-to-Emitter Saturation Voltage V

LOGIC INPUT THRESHOLDS

Input Low Voltage V
Input High Voltage V
Input Low Current I
Input High Current I

SUPPLY CURRENT

All Outputs ON I

All Outputs OFF I

PROPAGATION DELAY

Turn-ON Delay t
Turn-OFF Delay t

FAULT PARAMETERS

Output Low Current, I

F(SINK)

(with Fault)
Output High Current, I

F(LK)

Output Low Voltage V
Output Driver Fault Sense, High

Threshold (Open)

CEX

VIN = 0.8V; VEN = 5.5V; (Note 4)
VCE = 60V for CA3272A
VCE = 24V for CA3292A

CE(SUS)

CLAMPIC

CE(SAT)VIN

CC(ON)VIN

CC(OFF)VIN

PHL
PLH

I

OL

Note 7 40 - - V

VCC = 3.5V - - 0.8 V

IL
IH

VIN = VEN = 0.8V; VCC = 4.75V 10 45 70 µA

IL

VIN = VEN = 5.5V 10 45 70 µA

IH

I

OUTC

I

LOAD

I

LOAD

VIN = 0.8V; VEN = 2.0V; VF = 4V
V

I

OH

V

HTHDVIN

No Fault (Note 5) - - 20 µA
External Load Equal Min. I

OL

- 30 100 µA

= 300µA; VEN = 0.8V 28 32 36 V

= 2V, VCC = 4.75V,
IC = 400mA, TA = 125oC - - 0.3 V

IC = 500mA, TA = 25oC - - 0.4 V
IC = 600mA, TA = -40oC - - 0.5 V

2--V

= VEN = 5.5V; I

= I

OUTD

= 400mA

OUTA

= I

OUTB

=

- - 65 mA

= 0V - - 10 mA

= 500mA - 3 10 µs
= 500mA - 3 10 µs

124mA

= Low = 1V; (Note 5)

OUT

OL

- 0.2 0.4 V

= 0.8V; VEN = 2V (Note 6) 3 4 5.5 V

3