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Cherry Semiconductor Corporation

CS1107 Datasheet Preview

CS1107 Datasheet

Single Relay Driver IC

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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
VCC, 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 VBAT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .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
VCC
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
VCC
Fault
Control
Gnd
Gnd
Gnd
Gnd
Gnd Gnd Gnd Gnd
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
1 A ¨ Company




Cherry Semiconductor Corporation

CS1107 Datasheet Preview

CS1107 Datasheet

Single Relay Driver IC

No Preview Available !

Electrical Characteristics: 4.75V ² VCC ² 5.25V, -40ûC ² TA ² 85ûC, -40¡C ² TJ ² 150¡C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
s Supply Requirements
VCC Quiescent Current
VCC Quiescent Current
Output ON
Output OFF
36
70 250
s Output
Leakage Current
Saturation Voltage
VCLAMP
VBAT =14V
I OUTPUT = 350mA
I OUTPUT = 180mA
VCC < 4.5V, I OUTPUT = 180mA
0 100
1.1 1.5
0.9 1.3
29 33 36
s Current Sense
Short Circuit Current
Open Circuit Current
Output in the ON state
350 500 650
20 40 60
s Control - Input
Input Voltage
Input Current
Logic = High
Logic = Low
Control = VCC
s Fault Output - (Open Collector)
Output Low Voltage
I FAULT = 250µA (sink)
s Overtemperature Shutdown
TJ Output Disable Threshold
TJ Hysteresis
(Guaranteed by Design)
(Guaranteed by Design)
2.0
0.8
40 80
0.24 0.40
150 180
5
UNIT
mA
µA
µA
V
V
V
mA
mA
V
V
µA
V
ûC
ûC
PACKAGE PIN #
8 Lead SO
(Internally Fused Leads)
1
2
3
4
5, 6, 7, 8
Package Pin Description
PIN SYMBOL
FUNCTION
Output
VCC
Fault
Control
Ground
Open collector output.
5V regulated supply input.
Open collector diagnostic output low during open
load, short circuit and overtemperature conditions.
TTL compatible input. A high on this pin turns the
output on.
Signal ground.
2


Part Number CS1107
Description Single Relay Driver IC
Maker Cherry Semiconductor Corporation
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CS1107 Datasheet PDF






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