CS1107 Datasheet, PDF (1/4 Pages) Cherry Semiconductor Corporation – Single Relay Driver IC

CS1107
Single Relay Driver IC
Description
This ASIC provides up to 350mA of
drive current for driving a relay.
On-chip diagnostic features include
open and short circuit detection in
the on state, duty cycle current limit
control, and thermal shutdown.
Faults are reported on the Fault
lead. Fault is an active-low output.
An on-chip zener provides protec-
tion from flyback pulses from the
relay. Internal pull-down circuitry
is provided to ensure the output
pin turns off when the Control pin
is floating.
Absolute Maximum Ratings
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65ûC to 150ûC
V_CC, Fault , Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 6V
ESD Capability (Human Body Model). . . . . . . . . . . . . . . . . . . . . . . . . . . 2kV
Peak Transient Voltage (output off mode, output pin only)
(26V load Dump @ 14V V_BAT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40V
Lead Temperature Soldering
Reflow (SMD styles only) . . . . 60 sec. max above 183¡C, 230¡C peak
Features
s Fault Detection
Open Circuit
Short Circuit
Overtemperature
s On-Chip Flyback
Protection
s Low Standby Current
Block Diagram
V_CC
Control
Fault
ISOURCE
33V
Drive
& Bias
Duty cycle
during
short circuit
Overtemp
Shutdown
+
short circuit
-
detect
-
open circuit
+
detect
Output
Package Options
8 Lead SO
(internally fused leads)
Output 1
Gnd
V_CC
Gnd
Fault
Gnd
Control
Gnd
Gnd Gnd Gnd Gnd
Rev. 1/29/99
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: [phone] Fax: [phone]
Email: [e-mail]
Web Site: www.cherry-semi.com
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