CS8135 Cherry Semiconductor Corporation, CS8135 Datasheet

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CS8135

Manufacturer Part Number
CS8135
Description
5V/ 5V Low Dropout Dual Regulator with /ENABLE RESET
Manufacturer
Cherry Semiconductor Corporation
Datasheet
Rev. 10/21/97
The CS8135 is a low dropout, high cur-
rent, dual 5V linear regulator. The sec-
ondary 5V /10mA output is often used
for powering systems with standby
memory. Quiescent current drain is
less than 3mA when supplying 10mA
loads from the standby regulator.
In automotive applications, the CS8135
and all regulated circuits are protected
from reverse battery installations, as
well as two-battery jumps. During line
Internal Power Dissipation ..................................................Internally Limited
Junction Temperature Range (T
Storage Temperature Range ....................................................-65¡C to +150¡C
Lead Temperature Soldering
Electrostatic Discharge (Human Body Model) ..........................................2kV
Input Voltage
ENABLE
RESET/
5V, 5V Low Dropout Dual Regulator
Operating Range .....................................................................-0.5V to 26V
Load Dump ............................................................................................60V
Wave Solder (through hole styles only)..........10 sec. max, 260¡C peak
Gnd
V
IN
+
-
+
-
Absolute Maximum Ratings
with
Reference
Bandgap
Description
Shutdown
Thermal
Block Diagram
J
)............................................-40¡C to +150¡C
+
+
-
-
transients, such as a 60V load dump,
the 500mA output will automatically
shut down the primary output to pro-
tect both internal circuits and the load.
The standby regulator will continue to
power any standby load.
The CS8135 is packaged in a 5 lead
TO-220.
NOTE: The CS8135 is compatible with
the LM2935.
RESET
Primary Output
Standby Output
Over Voltage
Shutdown
CS8135
Current
Current
Output
Output
Limit
Limit
1
/ENABLE
V
V
OUT2
OUT1
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Cherry Semiconductor Corporation
Web Site: www.cherry-semi.com
Two Regulated Outputs
Low Dropout Voltage
ON/OFF Control
Low Quiescent Drain
RESET Option
Protection Features
Email: info@cherry-semi.com
Package Option
Primary Output 5V
Secondary Standby 5V
(0.6V at 0.5A)
Option
(<3mA)
Reverse Battery
60V Load Dump
-50V Reverse Transient
Short Circuit
Thermal Shutdown
Overvoltage Shutdown
Features
5 Lead TO-220
± 5%; 500mA
±5%; 10mA
A
Tab (Gnd)
1
1 V
2 V
3 Gnd
4
5 V
ENABLE
¨
RESET
IN
OUT1
OUT2
Company
/

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CS8135 Summary of contents

Page 1

... The standby regulator will continue to power any standby load. The CS8135 is packaged lead TO-220. NOTE: The CS8135 is compatible with the LM2935. Standby Output ...

Page 2

Electrical Characteristics : V = 14V PARAMETER Output Stage (V ) OUT1 Output Voltage, V OUT1 Dropout Voltage Line Regulation Load Regulation Quiescent Current Ripple Rejection Current Limit Maximum Line Transient Reverse Polarity Input Voltage, DC Reverse Polarity ...

Page 3

PACKAGE LEAD # TO-220 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 0 200 400 OUTPUT CURRENT (mA) Dropout Voltage vs. Output Current 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 ...

Page 4

TIME (ms) Load Transient Response (V ) OUT1 150 100 50 0 -50 -100 -150 TIME (ms) ...

Page 5

... Condition On Dump *Reference Test & Application Circuit Standby Output The CS8135 is equipped with two outputs. The second out- put is intended for use in systems requiring standby mem- ory circuits. While the high current regulator output can be RESET controlled with the lead described below, the stand- by output remains on under all conditions as long as suffi- cient input voltage is applied to the IC ...

Page 6

... RESET signal is sacrificed in this arrangement CS8135 20kW RESET/ ENABLE R1 CS8135 20kW RESET/ CMOS MM 74CO4 ENABLE R2 or Equivalent 100kW Gnd 4.7 mF Stability Considerations shown in the test and 2 ...

Page 7

Step 1: Place the completed circuit with the tantalum capacitors of the recommended values in an environmen- tal chamber at the lowest specified operating temperature and monitor ...

Page 8

... Ordering Information Part Number Description CS8135YT5 5 Lead TO-220 Straight CS8135YTVA5 5 Lead TO-220 Vertical CS8135YTHA5 5 Lead TO-220 Horizontal Rev. 10/21/97 Package Specification Thermal Data R QJC R QJA 1.40 (.055) 1.14 (.045) 4.83 (.190) 4.06 (.160) 2.87 (.113) 14.99 (.590) 2.62 (.103) 14.22 (.560) 6 ...

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