CS8120YD14 Cherry Semiconductor Corporation, CS8120YD14 Datasheet

CS8120YD14

Manufacturer Part Number

CS8120YD14

Description

5V/ 300mA Linear Regulator with and ENABLE RESET

Manufacturer

Cherry Semiconductor Corporation

Datasheet

1.CS8120YD14.pdf (8 pages)

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Download datasheet (199Kb)

Rev. 2/3/98

ENABLE

RESET

* TO-220 Block Diagram

The CS8120 is a 5V, 300mA precision

linear regulator with two microproces-

sor compatible control functions and

protection circuitry included on chip.

The composite NPN-PNP output pass

transistor assures a lower dropout volt-

age (1V @ 200mA) without requiring

excessive supply current (2.5mA).

The CS8120Õs two logic control func-

tions make this regulator well suited to

applications requiring microprocessor-

based control at the board or module

level.

stage. A high voltage (>2.9V) on the

torÕs pass transistor and sends the IC

into Sleep mode where it draws only

250µA. The

ENABLE

lead turns off the regula-

RESET

V REF

ENABLE

controls the output

Comparator

5V, 300mA Linear Regulator with

TO V

function sends a

OUT

Bandgap

Comparator

Description

Supply

RESET

Block Diagram *

RESET

Reference

Shutdown

Bandgap

Thermal

Voltage

Over

ing up or whenever the output voltage

moves out of regulation. The

signal is valid down to V

The CS8120 design optimizes supply

rejection by switching the internal

bandgap reference from the supply

input to the regulator output as soon as

the nominal output voltage is achieved.

Additional on chip filtering enhances

rejection of high frequency transients

on all external leads.

The CS8120 is fault protected against

short circuit, over voltage and thermal

runaway conditions.

RESET

CS8120

signal when the IC is power-

and ENABLE

Amplifier

Error

Current

Output

Limit

OUT

= 1V.

RESET

Gnd

OUT

2000 South County Trail, East Greenwich, RI 02818

5 Lead D

5 Lead TO-220

Tel: (401)885-3600 Fax: (401)885-5786

Cherry Semiconductor Corporation

Tab (Gnd)

Web Site: www.cherry-semi.com

5V ± 4% Output Voltage

Low Dropout Voltage

Low Quiescent Current

µP Compatible Control

Functions

Low Current Sleep Mode

Fault Protection

Email: info@cherry-semi.com

Package Options

300mA

(1V @ 150mA)

(2.5mA @ I

Thermal Shutdown

Short Circuit

60V Load Dump

RESET

ENABLE

=250µA

Features

PAK

ENABLE

OUT

8 Lead PDIP

14 Lead SOIC

OUT

Narrow

Gnd

ENABLE

RESET

= 150mA)

OUT

Company

Gnd

SENSE

RESET

Gnd

SENSE

RESET

OUT

Related parts for CS8120YD14

CS8120YD14 Summary of contents

Page 1

... NC ENABLE 2 5 Lead D PAK ENABLE Gnd 3 Gnd RESET OUT 1 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 A ¨ V OUT Gnd SENSE NC RESET NC NC Gnd SENSE RESET NC Company ...

Page 2

DC Input Voltage ...........................................................................................................................................................-0.7 to 26V Load Dump .................................................................................................................................................................................60V Output Current .................................................................................................................................................Internally Limited Electrostatic Discharge (Human Body Model) ......................................................................................................................2kV Operating Temperature .......................................................................................................................................-40¡C to +125¡C Junction Temperature...........................................................................................................................................-40¡C to +150¡C Storage Temperature ............................................................................................................................................-55¡C to +150¡C Lead Temperature Soldering Wave Solder (through hole ...

Page 3

PACKAGE LEAD # 5 Lead 8 Lead 14 Lead SO 5 Lead D TO-220 PDIP Narrow PAK N 2,3,4, 6,7,8,9,11 Output ...

Page 4

Quiescent Current vs. Output Current Over Temperature 3 14V IN 3.0 -40°C 2.5 25°C 2.0 125°C 1.5 1.0 0.5 0 100 150 200 Output Current (mA) 2000 1800 1600 1400 1200 1000 800 600 400 200 ...

Page 5

If the input voltage rises above 26V (e.g. load dump), the output shuts down. This response protects the internal cir- cuitry and enables the IC to survive unexpected voltage transients. Using an emitter sense scheme, the amount of current through ...

Page 6

V BAT SWITCH Figure 5: Microprocessor Control of CS8120 using an external switching transistor (Q The I/O port of the microprocessor typically provides 50µA to Q1. In automotive applications the SWITCH is connected to the ignition switch. Stability Considerations The ...

Page 7

0.1mF *C is required if regulator is far from power source filter. 1 **C is required for stability. 2 Figure 6. Circuit showing output compensation capacitor. Calculating Power Dissipation in a Single Output Linear Regulator ...

Page 8

... CS8120YTVA5 5 Lead TO-220 Vertical CS8120YTHA5 5 Lead TO-220 Horizontal CS8120YN8 8 Lead PDIP CS8120YDP5 5 Lead D CS8120YDPR5 5 Lead D (tape & reel) CS8120YD14 14 Lead SOIC Narrow CS8120YDR14 14 Lead SOIC Narrow (tape & reel) Rev. 2/3/98 Package Specification D Thermal Data 5 Lead 5 Lead 8 Lead 14 Lead SOIC English R QJC ...

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