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PDF CA3262 Data sheet ( Hoja de datos )
| Número de pieza | CA3262 | |
| Descripción | Quad-Gated / Inverting Power Drivers | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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CA3262A, CA3262
August 1997
Quad-Gated, Inverting Power Drivers
Features
• 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
• Operating Temperature Ranges
- CA3262A . . . . . . . . . . . . . . . . . . . . . . . -40oC to 125oC
- CA3262 . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC
Applications
System Applications
• Solenoids
• Relays
• Lamps
• Steppers
• Small Motors
• Displays
• Automotive
• Appliances
• Industrial Controls
• Robotics
Ordering Information
PART NUMBER
CA3262E
CA3262AE
CA3262AQ
CA3262AM
TEMP.
RANGE (oC)
PACKAGE
-40 to 85 16 Ld PDIP
-40 to 125 16 Ld PDIP
-40 to 125 28 Ld PLCC
-40 to 125 24 Ld SOIC (W)
PKG.
NO.
E16.3
E16.3
N28.45
M24.3
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 (ILIM) and thermal limiting (TLIM) 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
“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.
Pinouts
CA3262, CA3262A (PDIP)
TOP VIEW
CA3262A (PLCC)
TOP VIEW
OUT A 1
CLAMP 2
OUT B 3
GND 4
GND 5
OUT C 6
CLAMP 7
OUT D 8
16 IN A
15 IN B
14 ENABLE
INDEX
4 3 2 1 28 27 26
13 GND
12 GND
11 VCC
10 IN C
GND 5
GND 6
GND 7
GND 8
9 IN D
GND 9
GND 10
GND 11
25 GND
24 GND
23 GND
22 GND
21 GND
20 GND
19 GND
12 13 14 15 16 17 18
CA3262A (SOIC)
TOP VIEW
PRELIMINARY
OUT A 1
CLAMP 2
OUT B 3
NC 4
GND 5
GND 6
GND 7
GND 8
NC 9
OUT C 10
CLAMP 11
OUT D 12
24 IN A
23 IN B
22 ENABLE
21 NC
20 GND
19 GND
18 GND
17 GND
16 NC
15 VCC
14 IN C
13 IN D
File Number 1836.6
1
1 page  
CA3262A, CA3262
IB
CURRENT
TEMP.
AMPLIFIER
SENSE
CURRENT
SENSE
BANDGAP
VOLT. REF.
FIGURE 3. EACH OUTPUT POWER DRIVER IS A COMPOSITE CIRCUIT WITH OVER-TEMPERATURE SENSE FOR THERMAL
LIMITING AND OVER-CURRENT SENSE TO PROVIDE CURRENT LIMITING
Typical Performance Curves
80
SUPPLY VOLTAGE (VCC) = 5.5V
70
60
50
VIN = 2V, IOUT = 250mA (EACH)
40
30
20 THERMAL SHUTDOWN
10 VIN = 0V, IOUT = 0mA
0
-40 -20
0 20 40 60 80 100 120 140
AMBIENT TEMPERATURE (oC)
FIGURE 4A. TYPICAL SUPPLY CURRENT (PIN 11)
CHARACTERISTICS
4
SUPPLY VOLTAGE (VCC) = 4.75V
0.7
0.6
0.5
IC = 700mA
0.4
0.3
0.2
0.1
IC = 600mA
-40 -20
0 20 40 60 80 100 120 140
AMBIENT TEMPERATURE (oC)
FIGURE 4B. TYPICAL COLLECTOR-TO-EMITTER SATURATION
VOLTAGE CHARACTERISTICS IN QUAD-GATED
INVERTING POWER DRIVER OUTPUT
4
3
tPHL
3
VIN
50%
50%
2 9, 10, 15, 16
2
(16) (17) (27) (28)
tPHL
tPLH
VOUT
(OFF)
1
1, 3, 6, 8
(2) (4) (12) (14)
(ON)
50%
50%
1
tPLH
IF = 1.5A
IF = 1A
0
-40 -20
0 20 40 60 80 100 120 140
AMBIENT TEMPERATURE (oC)
0
-40 -20
0 20 40 60 80 100 120 140
AMBIENT TEMPERATURE (oC)
FIGURE 4C. TYPICAL PROPAGATION DELAY TIME CHARAC-
TERISTICS
FIGURE 4D. TYPICAL CLAMP-DIODE FORWARD VOLTAGE
CHARACTERISTICS
FIGURE 4. TYPICAL CHARACTERISTICS OF THE CA3262E
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet CA3262.PDF ] | |
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