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

CS1107
Single Relay Driver IC
This ASIC provides up to 350 mA 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 protection 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.
Features
• Fault Detection
– Open Circuit
– Short Circuit
– Overtemperature
• On–Chip Flyback Protection
• Low Standby Current
• Internally Fused Leads in SO–8 Package
V_CC
Control
I_SOURCE
33 V
Drive &
Bias
Duty cycle
during short
circuit
Overtemp
Shutdown
Output
http://onsemi.com
8
1
SO–8
DF SUFFIX
CASE 751
PIN CONNECTIONS AND
MARKING DIAGRAM
1
Output
V_CC
Fault
Control
8
GND
GND
GND
GND
A
= Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
Fault
+
–
Short Circuit
Detect
–
+
Open Circuit
Detect
ORDERING INFORMATION
Device
Package
Shipping
CS1107EDF8
SO–8
95 Units/Rail
CS1107EDFR8
SO–8 2500 Tape & Reel
GND GND GND GND
Figure 1. Block Diagram
© Semiconductor Components Industries, LLC, 2001
1
April, 2001 – Rev. 5
Publication Order Number:
CS1107/D