参数资料
型号: CA3292AM
厂商: INTERSIL CORP
元件分类: 外设及接口
英文描述: Quad-Gated Inverting Power Drivers with Fault Mode Diagnostic Flag Output
中文描述: 0.7 A 4 CHANNEL, BUF OR INV BASED PRPHL DRVR, PDSO28
封装: PLASTIC, MS-013AE, SOIC-18
文件页数: 1/10页
文件大小: 91K
代理商: CA3292AM
1
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
Operating Temperature Range -40
o
C to 125
o
C
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 resis-
tive 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 detec-
tion. The Fault Sense circuit detects the IN and OUT states and
switches Q
F
“ON” if a fault is detected. When a fault is detected,
transistor Q
F
activates a current sink pull-down at the FAULT
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.
Pinouts
Applications
Solenoids
Relays
Lamps
Steppers
Injectors
Motors
System Applications
Automotive
Appliance
Industrial Control
Robotics
Ordering Information
PART NUMBER
TEMP.
RANGE (
o
C)
PACKAGE
PKG.
NO.
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
CA3272A, CA3292A (PLCC)
TOP VIEW
CA3272A, CA3292A (SOIC)
TOP VIEW
INDEX
O
N
I
I
V
C
O
N
O
F
1
I
28
I
27
E
O
N
2
3
4
5
6
7
8
9
10
11
12 13 14 15 16 17 18
19
20
21
22
23
24
25
26
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
1
2
3
4
5
6
7
8
9
10
11
12
OUT B
NC
NC
NC
NC
GND
GND
GND
GND
NC
NC
NC
20
21
22
23
24
25
26
27
28
19
18
17
OUT A
IN A
IN B
ENABLE
GND
GND
NC
V
CC
IN C
FAULT
GND
GND
13
14
NC
OUT C
16
15
IN D
OUT D
File Number
2223.7
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
Intersil Corporation 1999
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