CA3262A, CA3262
Quad-Gated, Inverting Power Drivers
August 1997
Features
Description
• Independent Over-Current Limiting On Each Output
• Independent Over-Temperature Limiting On Each Output
• Output Drivers Capable of Switching 700mA Load
• Inputs Compatible With TTL or 5V CMOS Logic
• Suitable For Resistive, Lamp or Inductive Loads
The CA3262 and CA3262A are used to interface low-level
logic to high current loads. Each Power Driver has four
inverting switches consisting of a non-inverting logic input
stage and an inverting low-side driver output stage. All inputs
are 5V TTL/CMOS logic compatible and have a common
Enable input. Each output device has independent current
• Power-Frame Package Construction For Good Heat
Dissipation
limiting (I ) and thermal limiting (T ) for protection from
LIM LIM
over-load conditions. Steering diodes connected from each
output (in pairs) to the Clamp pins may be used in
conjunction with external zener diodes to protect the IC
against over-voltage transients that result from inductive load
switching.
• Operating Temperature Ranges
o
o
- CA3262A . . . . . . . . . . . . . . . . . . . . . . . -40 C to 125 C
o
o
- CA3262 . . . . . . . . . . . . . . . . . . . . . . . . . -40 C to 85 C
Applications
• Solenoids
• Relays
System Applications
To allow for maximum heat transfer from the chip, all ground
pins on the DIP, PLCC and SOIC packages are directly
connected to the mounting pad of the chip. Integral heat
spreading lead frames directly connect the bond pads and
ground leads to conduct heat from the chip junction to the
PC Board for good heat dissipation.
•
•
•
•
Automotive
Appliances
• Lamps
Industrial Controls
Robotics
• Steppers
• Small Motors
• Displays
The CA3262 and CA3262A can drive four incandescent
lamp loads without modulating their brilliance when the
“cold” lamps are energized. Outputs may be parallel
connected to drive high current loads. The maximum output
current of each output is determined by the over-current lim-
iting threshold which is typically 1.2A but may be as low as
0.7A.
Ordering Information
TEMP.
o
PKG.
NO.
PART NUMBER RANGE ( C)
PACKAGE
16 Ld PDIP
CA3262E
-40 to 85
E16.3
CA3262AE
CA3262AQ
CA3262AM
-40 to 125 16 Ld PDIP
-40 to 125 28 Ld PLCC
-40 to 125 24 Ld SOIC (W)
E16.3
N28.45
M24.3
Pinouts
CA3262, CA3262A (PDIP)
CA3262A (PLCC)
CA3262A (SOIC)
TOP VIEW
TOP VIEW
TOP VIEW
PRELIMINARY
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
IN A
OUT A
CLAMP
OUT B
GND
1
2
24
IN A
OUT A
CLAMP
OUT B
NC
INDEX
IN B
23
22
21
20
19
IN B
4
3
2
1
28 27 26
3
ENABLE
GND
ENABLE
NC
4
GND
GND
GND
GND
GND
GND
GND
25
24
23
22
21
20
19
GND
5
6
5
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
6
GND
OUT C
CLAMP
OUT D
V
7
CC
GND
7
18 GND
17 GND
IN C
IN D
8
GND
8
9
NC
NC
V
9
16
15
14
13
10
11
OUT C
CLAMP
OUT D
10
11
12
CC
IN C
IN D
12 13 14 15 16 17 18
File Number 1836.6
1