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1-A Current Capability Per Channel
45-V Inductive Switching Voltage Capability
Current Sink Inputs Compatible With TTL
or CMOS Devices
Output Clamp Diodes for Inductive
Transient Protection
Independent Thermal Shutdown Protection
Overvoltage Shutdown Protection
Independent Channel Current Limit
Error Sensing
Extended Temperature Range of 鈥?40擄C
to 125擄C
KN PACKAGE
(TOP VIEW)
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description
GND
4A
4Y
3, 4 CLAMP
3Y
3A
ENABLE
GND
V
CC
2A
2Y
1, 2 CLAMP
1Y
1A
FAULT
The TPIC2404 is a monolithic high-voltage
high-current quadruple low-side switch especially
designed for driving from low-level logic to peripheral loads such as relays, solenoids, motors, lamps, and other
high-voltage high-current loads. The high-efficiency power switch is optimized for applications where a very
rugged power switch is required. The device tolerates power supply transients and reverse battery conditions
up to 13 V.
The TPIC2404 features four inverting open-collector outputs controlled by a common-enable input. When
ENABLE is low, the outputs are disabled. An error-sensing circuit monitors load and device faults. When an error
is sensed, the FAULT output goes to a low state. In addition, the device features on-board V
CC
overvoltage and
thermal overload protection circuits, and the outputs are current limit protected.
FUNCTION TABLE
INPUTS
ENABLE
H
Normal operation
H
L
Open load
Short to GND
Overvoltage shutdown
Thermal shutdown
Short to VCC
H = high level,
L = low level,
H
H
H
H
H
H
H
H
H
H
A
H
L
X
L
H
L
H
H
L
H
L
H
L
X = irrelevant
OUTPUTS
Y
L
H
H
L
L
L
L
H
H
H
H
H
H
FAULT
H
H
H
L
H
L
H
L
H
L
H
L
H
The tab is electrically connected to the GND pins.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
漏
1993, Texas Instruments Incorporated
POST OFFICE BOX 655303
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DALLAS, TEXAS 75265
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