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CS1108 Datasheet

Single Lamp Driver IC

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CS1108
Single Lamp Driver IC
This ASIC provides up to 350 mA of drive current for powering
bulbs. The typical application for this part is for use in airbag systems
using a type 194 bulb. On–chip diagnostics provide open circuit and
short circuit detection in the output on mode. In addition, the output
driver will turn on (sink current) when VCC is low. Fault is an
active–low output which reports in the output–on mode. Internal
pull–up circuitry is provided to ensure the output pin turns on when the
Control pin is floating.
Features
Fault Detection
Open Circuit
Short Circuit
Overtemperature
VCC Sense: Output Turns On with Loss of VCC
Low Standby Current
Internally Fused Leads in SO–8 Package
VCC
http://onsemi.com
8
1
SO–8
DF SUFFIX
CASE 751
PIN CONNECTIONS AND
MARKING DIAGRAM
1
Output
VCC
Fault
Control
8
GND
GND
GND
GND
VCC(SENSE)
ISOURCE
Control
Duty cycle
during short
circuit
Overtemp
Shutdown
Drive &
Bias
Fault
+
Short Circuit
Detect
+ Open Circuit
Detect
Output
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
ORDERING INFORMATION
Device
Package
Shipping
CS1108EDF8
SO–8
95 Units/Rail
CS1108EDFR8
SO–8 2500 Tape & Reel
GND GND GND GND
Figure 1. Block Diagram
© Semiconductor Components Industries, LLC, 2001
April, 2001 – Rev. 6
1
Publication Order Number:
CS1108/D


  ON Semiconductor Electronic Components Datasheet  

CS1108 Datasheet

Single Lamp Driver IC

No Preview Available !

CS1108
MAXIMUM RATINGS*
Rating
Storage Temperature
VCC, Fault, Control
ESD Capability (Human Body Model)
Peak Transient Voltage (output off mode, output pin only)
Lead Temperature Soldering:
1. 60 second maximum above 183°C.
*The maximum package power dissipation must be observed.
(26 V Load Dump @ 14 V VBAT)
Reflow: (SMD styles only) (Note 1)
Value
–65 to +150
–0.5 to 6.0
2.0
40
230 peak
Unit
°C
V
kV
V
°C
ELECTRICAL CHARACTERISTICS (4.75 VCC 5.25 V, –40°C TA 85°C, –40°C TJ 150°C; unless other-
wise specified.)
Characteristic
Test Conditions
Min Typ Max
Supply Requirements
VCC Quiescent Current
VCC Quiescent Current
Output
Output ON
Output OFF
– 3.0 6.0
– 100 250
Leakage Current
Saturation Voltage
VOUTPUT (self–bias)
Current Sense
Short Circuit Current
VBAT = 14 V
IOUTPUT = 350 mA
IOUTPUT = 180 mA
VCC < 4.5 V, IOUTPUT < 200 mA
– 16 100
– 1.1 1.5
– 0.9 1.3
– – 3.5
350 500 650
Open Circuit Current
Output in the ON state
20 40 60
Control–Input
Input Voltage
Logic = High
Logic = Low
2.0 –
– – 0.8
Input Current
Logic = VCC
Logic = 0 V
– 20
–50 –20
40
Fault Output – (Open Collector)
Output Low Voltage
IFAULT = 250 µA (sink)
– 0.24
Overtemperature Shutdown
TJ Output Disable Threshold
(Guaranteed by Design)
150 180
TJ Hysteresis
(Guaranteed by Design)
5.0 –
Note: A fault signal will be shown (at the fault pin) during inrush as the short circuit threshold is exceeded.
0.40
Unit
mA
µA
µA
V
V
V
mA
mA
V
V
µA
µA
V
°C
°C
PACKAGE PIN DESCRIPTION
PACKAGE PIN #
8 Lead SO Narrow
1
2
3
4
5, 6, 7, 8
PIN SYMBOL
Output
VCC
Fault
Control
Ground
FUNCTION
Open collector output.
5.0 V regulated supply input.
Open collector diagnostic output low during open load, short
circuit and overtemperature conditions.
TTL compatible input.
Signal ground.
http://onsemi.com
2


Part Number CS1108
Description Single Lamp Driver IC
Maker ON Semiconductor
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CS1108 Datasheet PDF






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