CA3262A, CA3262
August 1997
Quad-Gated, Inverting Power Drivers
Description
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
limiting (I
LIM
) and thermal limiting (T
LIM
) for protection from
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.
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.
The CA3262 and CA3262A can drive four incandescent
lamp loads without modulating their brilliance when the
鈥渃old鈥?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.
Features
鈥?/div>
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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
Power-Frame Package Construction For Good Heat
Dissipation
鈥?Operating Temperature Ranges
- CA3262A . . . . . . . . . . . . . . . . . . . . . . . -40
o
C to 125
o
C
- CA3262 . . . . . . . . . . . . . . . . . . . . . . . . . -40
o
C to 85
o
C
Applications
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Solenoids
Relays
Lamps
Steppers
Small Motors
Displays
System Applications
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Automotive
Appliances
Industrial Controls
Robotics
Ordering Information
PART NUMBER
CA3262E
CA3262AE
CA3262AQ
CA3262AM
TEMP.
RANGE (
o
C)
-40 to 85
-40 to 125
-40 to 125
-40 to 125
PACKAGE
16 Ld PDIP
16 Ld PDIP
28 Ld PLCC
24 Ld SOIC (W)
PKG.
NO.
E16.3
E16.3
N28.45
M24.3
Pinouts
CA3262, CA3262A (PDIP)
TOP VIEW
OUT B
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
IN A
IN B
ENABLE
GND
GND
V
CC
IN C
IN D
GND 5
GND 6
GND 7
GND 8
GND 9
GND 10
GND 11
12 13 14 15 16 17 18
IN D
OUT C
CLAMP
OUT D
IN C
V
CC
NC
25 GND
24 GND
23 GND
22 GND
21 GND
20 GND
19 GND
INDEX
CA3262A (PLCC)
TOP VIEW
CLAMP
OUT A
ENABLE
CA3262A (SOIC)
TOP VIEW
PRELIMINARY
OUT A
CLAMP
OUT B
NC
GND
GND
GND
GND
NC
1
2
3
4
5
6
7
8
9
24 IN A
23 IN B
22 ENABLE
21 NC
20 GND
19 GND
18 GND
17 GND
16 NC
15 V
CC
14 IN C
13 IN D
IN A
CLAMP
OUT B
GND
GND
OUT C
CLAMP
OUT D
4
3
2
NC
1
28 27 26
IN B
OUT A
OUT C 10
CLAMP 11
OUT D 12
File Number
1
1836.6
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