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CS8140YDW24, CS8140YN14, CS8141

Table of contents:
Info of CS8140YDW24
Info of CS8140YN14
Info of CS8141

CS8140YDW24, CS8140YN14, CS8141 Selling Leads, Datasheet

MFG:ON Semiconductor Category:Integrated Circuits (ICs) Package Cooled:SOP-24 D/C:04+

CS8140YDW24, CS8140YN14, CS8141 Datasheet download

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Part Number: CS8140YDW24

Category: Integrated Circuits (ICs)

MFG: ON Semiconductor

Package Cooled: SOP-24

D/C: 04+

Description: IC REG LDO LIN 500MA 5V 14DIP

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CS8140YN14 Parameters

Technical/Catalog Information	CS8140YN14
Vendor	ON Semiconductor
Category	Integrated Circuits (ICs)
Regulator Type	Single Output
Package / Case	14-DIP (300 mil)
Packaging	Tube
Regulator Topology	Positive Fixed
Current - Output	500mA
Voltage - Output	5V
Operating Temperature	-40°C ~ 125°C
Voltage - Input	7 ~ 26 V
Number of Regulators	1
Current - Limit (Min)	700mA
Current Short Circuit (Isc)	-
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	CS8140YN14 CS8140YN14 CS8140YN14OS ND CS8140YN14OSND CS8140YN14OS

CS8141 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 V_OUT = 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.

CS8141 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 V_IN

CS8141 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

CS8141 Connection Diagram

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