CS3341 Datasheet, PDF (1/6 Pages) Cherry Semiconductor Corporation – Alternator Voltage Regulator Darlington Driver

CS3341/51
CS386/387
Alternator Voltage Regulator
Darlington Driver
Description
Features
The CS3341/3351/386/387 integral
alternator regulator integrated cir-
cuit provides the voltage regulation
for automotive, 3-phase alternators.
It drives an external power
Darlington for control of the alter-
nator field current. In the event of a
charge fault, a lamp output pin is
provided to drive an external dar-
lington transistor capable of switch-
ing on a fault indicator lamp. An
overvoltage or no STATOR signal
condition activates the lamp output.
The CS3341 and CS3351 are avail-
able in SO14 packages. The CS386
and CS387 are available as Flip Chips.
s Drives NPN Darlington
s Short Circuit Protection
s 80V Load Dump
s Temperature Compensated
Regulation Voltage
s Shorted Field Protection
Duty Cycle, Self Clearing
Absolute Maximum Ratings
Storage Temperature Range .....................................................-55°C to +165°C
Junction Temperature Range ....................................................-40°C to +150°C
Continuous Supply..........................................................................................27V
I_CC Load Dump .........................................................................................400 mA
Lead Temperature Soldering
Reflow (SMD styles only)............60 sec. max above 183°C, 230°C peak
Block Diagram
VCC
ENABLE
IGN
Series
Regulator
Load Dump
Detection and
Protection
VSUP
Sense
–⁺
LAMP
+
–
VREG
+
–
VHV
OSC
RS Flop
Set ^S
R ^Dominate
QR
Lamp
Indicator
OSC
VSUP
Device
Driver
VSUP
DELAY
SC
ENABLE
STATOR
Power Up
Note:
CS-3341/CS-387 Disconnected
CS-3351/CS-386 Connected
STATOR
Timer
STATOR
Gnd
Rev. 4/15/99
1
Package Options
CS3341/51
14 Lead SO
DD ¹
SC
Gnd
NC
OSC
NC
V_CC
Sense
Lamp
NC
STATOR
NC
NC
IGN
CS386/387
Flip Chip
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