
Features
V
CC
Control
Output
Gnd
Gnd
Gnd
Gnd
Duty cycle
during
short circuit
Overtemp
Shutdown
short circuit
detect
open circuit
detect
I
SOURCE
Drive
& Bias
+
+
-
-
Fault
33V
I
Fault Detection
Open Circuit
Short Circuit
Overtemperature
I
On-Chip Flyback
Protection
I
Low Standby Current
Package Options
C
Single Relay Driver IC
CS1107
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
lead.
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.
is an active-low output.
Fault
Fault
Block Diagram
Absolute Maximum Ratings
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65C to 150C
V
CC
,
, 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 183C, 230C peak
Fault
Output
1
V
CC
Gnd
Gnd
Gnd
Control
Gnd
Fault
8 Lead SO
(internally fused leads)
1
A
Company
¨
Rev. 1/29/99
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: info@cherry-semi.com
Web Site: www.cherry-semi.com