Cherry Semiconductor CS299H Datasheet

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: [phone] Fax: [phone]

Email: [e-mail]

Web Site: www.cherry-semi.com

A Company

¨

Rev. 3/29/99

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