CS3341/3351/386/387
CS3341/51
CS386/387
Alternator Voltage Regulator
Darlington Driver
Description
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.
Features
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
Package Options
CS3341/51
14 Lead SO
Block Diagram
VCC
Load Dump
Detection and
Protection
VSUP
DD
Gnd
NC
OSC
Lamp
NC
OSC
VSUP
OSC
1
SC
NC
V
CC
Sense
STATOR
NC
IGN
CS386/387
IGN
ENABLE
Series
Regulator
NC
Sense
–
+
+
–
VREG
+
–
VHV
R
RS Flop
Set
Dominate
Q
Lamp
Indicator
S
R
Device
Driver
Flip Chip
DELAY
ENABLE
STATOR
Power Up
LAMP
STATOR
Timer
VSUP
Gnd
SC
Note:
CS-3341/CS-387 Disconnected
CS-3351/CS-386 Connected
STATOR
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
Rev. 4/15/99
1
A
®
Company
CHERRY [ CHERRY SEMICONDUCTOR CORPORATION ]
