CS8135, CS8140, CS-8140 Selling Leads, Datasheet
MFG:86 Package Cooled:TO220-5P D/C:98
CS8135, CS8140, CS-8140 Datasheet download
Part Number: CS8135
MFG: 86
Package Cooled: TO220-5P
D/C: 98
CS8135, CS8140, CS-8140
- Table of contents:
Info of CS8135
Info of CS8140
Info of CS-8140
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About CS8135
PDF/DataSheet Download
Datasheet: CS8135
File Size: 45056 KB
Manufacturer: ON SEMICONDUCTOR
Download : Click here to Download
About CS8140
PDF/DataSheet Download
Datasheet: CS8140
File Size: 176698 KB
Manufacturer:
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About CS-322CD8
PDF/DataSheet Download
Datasheet: CS-322CD8
File Size: 820620 KB
Manufacturer: CHERRY [Cherry Semiconductor Corporation]
Download : Click here to Download
CS8135 General Description
The CS8135 is a low dropout, high current, dual 5V linear regulator. The secondary 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 transients, such as a 60V load dump, the 500mA output will automatically shut down the primary output to protect 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.
CS8135 Maximum Ratings
Input Voltage Operating Range................................................-0.5V to 26V
Load Dump ............................................................................................60V
Internal Power Dissipation ...............................................Internally Limited
Junction Temperature Range (TJ)........................................-40 to +150
Storage Temperature Range ..............................................-65 to +150
Lead Temperature Soldering
Wave Solder (through hole styles only).............10 sec. max, 260peak
Electrostatic Discharge (Human Body Model) ..........................................2kV
CS8135 Features
Two Regulated Outputs
Primary Output 5V ± 5%; 500mA
Secondary Standby 5V ±5%; 10mA
Low Dropout Voltage (0.6V at 0.5A)
ON/OFF Control Option
Low Quiescent Drain (<3mA)
RESET Option
Protection Features Reverse Battery
60V Load Dump
-50V Reverse Transient
Short Circuit
Thermal Shutdown
Overvoltage Shutdown
CS8140 General Description
The CS8140 is a 5V Watchdog Regulator with protection circuitry and three logic control functions that allow a microprocessor to control its own power supply. The CS8140 is designed for use in automotive, switch mode power supply post regulator, and bat- tery powered systems.
Basic regulator performance character- istics include a low noise, low drift, 5V ± 4% precision output voltage with low dropout voltage (1.25V @ IOUT = 500mA) and low quiescent current (7mA @ IOUT = 500mA). On board short circuit, ther- mal, and overvoltage protection make it possible to use this regulator in particu- larly harsh operating environments.
The Watchdog logic function monitors an input signal (WDI) from the micro- processor or other signal source. When the signal frequency moves outside externally programmable window lim- its, a RESET signal is generated (RESET). An external capacitor (CDELAY) programs the watchdog win- dow frequency limits as well as the power on reset (POR) and RESET delay.
The RESET function is activated by any of three conditions: the watchdog sig- nal moves outside of its preset limits; the output voltage drops out of regula- tion by more than 4.5%; or the IC is in its power up sequence. The RESET sig- nal is independent of VIN and reliable down to VOUT = 1V.
In conjunction with the Watchdog, the ENABLE function controls the regula- tor's power consumption. The CS8140's output stage and its attendant circuitry are enabled by setting the ENABLE lead high. The regulator goes into sleep mode (IOUT = 250µA) when the ENABLE lead goes low and the watch- dog signal moves outside its preset window limits. This unique combina- tion of control functions in the CS8140 gives the microprocessor control over its own power down sequence: i.e. it gives the microprocessor the flexibility to perform housekeeping functions before it powers down.
The CS8141 has the same features as the CS8140, except that the CS8141 only responds to input signals (WDI) which are below the preset watchdog frequen- cy threshold.
Basic regulator performance character- istics include a low noise, low drift, 5V ± 4% precision output voltage with low dropout voltage (1.25V @ IOUT = 500mA) and low quiescent current (7mA @ IOUT = 500mA). On board short circuit, ther- mal, and overvoltage protection make it possible to use this regulator in particu- larly harsh operating environments.
The Watchdog logic function monitors an input signal (WDI) from the micro- processor or other signal source. When the signal frequency moves outside externally programmable window lim- its, a RESET signal is generated (RESET). An external capacitor (CDELAY) programs the watchdog win- dow frequency limits as well as the power on reset (POR) and RESET delay.
The RESET function is activated by any of three conditions: the watchdog sig- nal moves outside of its preset limits; the output voltage drops out of regula- tion by more than 4.5%; or the IC is in its power up sequence. The RESET sig- nal is independent of VIN and reliable down to VOUT = 1V.
In conjunction with the Watchdog, the ENABLE function controls the regula- tor's power consumption. The CS8140's output stage and its attendant circuitry are enabled by setting the ENABLE lead high. The regulator goes into sleep mode (IOUT = 250µA) when the ENABLE lead goes low and the watch- dog signal moves outside its preset window limits. This unique combina- tion of control functions in the CS8140 gives the microprocessor control over its own power down sequence: i.e. it gives the microprocessor the flexibility to perform housekeeping functions before it powers down.
The CS8141 has the same features as the CS8140, except that the CS8141 only responds to input signals (WDI) which are below the preset watchdog frequen- cy threshold.
CS8140 Maximum Ratings
Input Voltage
Operating Range...................................................................................................-0.5 to +26V
Peak Transient Voltage (46V Load Dump @ 14V VBAT) .........................................60V
Electrostatic Discharge
(Human Body Model)..............................................................................................4kV
WDI Input Signal Range ..........................................................................................-0.3 to +7V
Internal Power Dissipation ..............................................................................Internally limited
Junction Temperature Range (TJ) ......................................................................-40 to +150
Storage Temperature Range..............................................................................-65 to +150
Lead Temperature Soldering
Wave Solder (through hole styles only) .................................10 sec. max, 260 peak
Reflow (SMD styles only) ....................................60 sec. max above 183, 230 peak
ENABLE ......................................................................................................................-0.3V to VIN
Operating Range...................................................................................................-0.5 to +26V
Peak Transient Voltage (46V Load Dump @ 14V VBAT) .........................................60V
Electrostatic Discharge
(Human Body Model)..............................................................................................4kV
WDI Input Signal Range ..........................................................................................-0.3 to +7V
Internal Power Dissipation ..............................................................................Internally limited
Junction Temperature Range (TJ) ......................................................................-40 to +150
Storage Temperature Range..............................................................................-65 to +150
Lead Temperature Soldering
Wave Solder (through hole styles only) .................................10 sec. max, 260 peak
Reflow (SMD styles only) ....................................60 sec. max above 183, 230 peak
ENABLE ......................................................................................................................-0.3V to VIN
CS8140 Features
·5V ± 4%, 500mA Output Voltage
·µP Compatible Control Functions Watchdog RESET ENABLE
·Low Dropout Voltage (1.25V @ 500mA)
·Low Quiescent Current (7mA @ 500mA)
·Low Noise, Low Drift
·Low Current SLEEP Mode (IQ = 250µA)
·Fault Protection Thermal Shutdown Short Circuit 60V Peak Transient Voltage
·µP Compatible Control Functions Watchdog RESET ENABLE
·Low Dropout Voltage (1.25V @ 500mA)
·Low Quiescent Current (7mA @ 500mA)
·Low Noise, Low Drift
·Low Current SLEEP Mode (IQ = 250µA)
·Fault Protection Thermal Shutdown Short Circuit 60V Peak Transient Voltage
CS8140 Connection Diagram
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