Page 1
Features
D1
Q1
B
Q2
R1
600
C1
C2
■ DC Current Gain 1000
■ 80V Breakdown Voltage
■ Reverse Battery protection
Package Option
CS299
Darlington Lamp Driver
CS299
Description
This integrated circuit is a flip
chip lamp driver for use in an
automotive alternator system.
The circuit drives an indicator
lamp located on the dash-
board. Reverse battery protection is provided with internal
diode, D1, and external resistors on B, C1 and C2.
Block Diagram
Absolute Maximum Ratings
Storage Temperature .....................................................................-65¡C ~ 150¡C
Ambient Operating Temperature................................................-40¡C ~ 140¡C
Collector Breakdown Voltage........................................................................80V
Flip Chip
1
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
A Company
¨
Rev. 3/29/99
Page 2
Package Pin Description
PACKAGE PIN # PIN SYMBOL FUNCTION
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
CS299
2
Electrical Characteristics: T
A
= 25¡C , unless otherwise specified.
Flip Chip
B Base of input darlington.
C1 Collector of darlington input device.
C2 Collector of darlington output driver.
E Emitter of darlington driver. Base/Emitter resistor and substrate
are also connected here.
■ Supply Requirements
Saturation Voltage I
B1
= 0.6mA, IC2= 350mA 0.60 V
TJ= -30¡C 0.55 V
TJ= 150¡C 0.65 V
Collector Breakdown Voltage IC1= IC2= 1.0mA, RBE= 200, VC1= V
C2
80 V
Collector Cut Off Current (I
CEO
)V
CE1
= V
CE2
= 60V, RBE= 200 10 µA
DC Current Gain (HFE) VC1= VC2= 1.0V, IB1= 100µA 1000
NPN b (Q1) IB1= 1µA, V
CE2
= 0V, V
CE1
= 1.5V 50
VBE(in saturation) IB1= 0.6mA, IC1= 50mA, IC2= 350mA 2.0 V
Diode Forward Voltage (D1) ID1= 25mA 0.5 1.5 V
I
C1
I
B1
(IC1+IC2)
I
B1
Page 3
CS299
3
Application Diagram
C3
.047mF
R7
CS299
R1
100kW
R2
0.022mF
C4
10W
600W
10mF
50kW
C2
STAT OR
R6
20kW
R3
250W
C1
0.1mF
CS3341/51
R9
2.4kW
RECTIFIER
S
18kW
R4
R5
10kW
D1
Q1
Power Darlington
POWER GROUND
A
F
FIELD
Lamp
I
Indicator
R10
510W
IGNITION
SWITCH
BATTERY
Page 4
4
Flip Chip
Rev. 3/29/99
© 1999 Cherry Semiconductor Corporation
CS299
Ordering Information
Part Number Description
CS299H Flip Chip
Cherry Semiconductor Corporation reserves the right to
make changes to the specifications without notice. Please
contact Cherry Semiconductor Corporation for the latest
available information.
Note: All dimensions are in inches.
.0075
.0045
.030
44 MILS REF
.0075
.0045
.0075
.0045
.0035
.0045
.030
44 MILS REF.
.0055
.0075
.0075
.0045
SOLDER BUMP
IN 4 PLACES
.018
.022
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