CS8147 Cherry Semiconductor Corporation, CS8147 Datasheet

CS8147

Manufacturer Part Number

CS8147

Description

10V/5V Low Dropout Dual Regulator with ENABLE

Manufacturer

Cherry Semiconductor Corporation

Datasheet

1.CS8147.pdf (8 pages)

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Download datasheet (174Kb)

Rev. 4/5/99

ESD (Human Body Model) ...........................................................................2kV

Internal Power Dissipation ..................................................Internally Limited

Junction Temperature Range...................................................-40¡C to +150¡C

Storage Temperature Range ....................................................-65¡C to +150¡C

Lead Temperature Soldering

The CS8147 is a 10V/5V dual out-

put linear regulator. The 10V ±.5%

output sources 500mA and the 5V

±3% output sources 70mA. The

secondary output is inherently sta-

ble and does not require an external

capacitor.

The on board

controls the regulatorÕs two out-

puts. When

regulator is placed in SLEEP mode.

Both outputs are disabled and the

Input Voltage (V

ENABLE

DC .............................................................................................-18V to 26V

Positive Peak Transient Voltage

Negative Peak Transient Voltage ......................................................-50V

Wave Solder (through hole styles only)..........10 sec. max, 260¡C peak

10V/5V Low Dropout Dual Regulator

ENABLE

(46V Load Dump @ V

Gnd

Input ...................................................................................-0.3 to 10V

ENABLE

)

Reference

Bandgap

Shutdown

is high, the

Thermal

Absolute Maximum Ratings

function

Pre-Regulator

Description

Block Diagram

= 14V) .......................................................60V

Over Voltage

Shutdown

with ENABLE

regulator draws only 70µA of qui-

escent current.

The regulator is protected against

overvoltage conditions. Both out-

puts are protected against short

circuit and thermal runaway

conditions.

The CS8147 is packaged in a 5 lead

TO-220 with copper tab. The cop-

per tab can be connected to a heat

sink if necessary.

Secondary Output

Primary Output

Current Limit

CS8147

Anti-saturation

Current Limit

and

OUT

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

70µA SLEEP Mode Current

Inherently Stable

Fault Protection

CMOS Compatible

Email: info@cherry-semi.com

ENABLE

Package Options

OUT(max)

10V ± 5%; 500 mA

Secondary Output

(No Output Capacitor

Overvoltage Shutdown

Reverse Battery

60V Peak Transient

-50V Reverse Transient

Short Circuit

Thermal Shutdown

Required)

5V ± 3%; 70 mA

Features

5 Lead TO-220

Tab (Gnd)

) Input Current.

Input with Low

2 V

3 Gnd

4 V

5 V

ENABLE

OUT1

OUT2

Company

(10V)

(5V)

Related parts for CS8147

CS8147 Summary of contents

Page 1

... The regulator is protected against overvoltage conditions. Both out- puts are protected against short circuit and thermal runaway conditions. The CS8147 is packaged lead TO-220 with copper tab. The cop- per tab can be connected to a heat sink if necessary. Primary Output V ...

Page 2

Electrical Characteristics for V PARAMETER Primary Output (V ) OUT1 Output Voltage 13V ² V Dropout Voltage I OUT1 Line Regulation 11V ² V Load Regulation 5mA ² I Quiescent Current I OUT1 I OUT1 ENABLE Quiescent Current V OUT1 ...

Page 3

Dropout Voltage vs. Output Current (V 600 550 500 450 400 125°C 350 25°C 300 250 200 150 100 100 150 200 250 300 350 400 450 500 550 600 Output Current (mA) Quiescent Current vs. ...

Page 4

Load Regulation vs. Output Current ( 14V IN 18 25°C 14 -40° 125° - 100 150 200 250 300 350 400 450 500 550 600 Output Current (mA), ...

Page 5

... Low V IN Test & Applications Circuit 0 CS8147 ENABLE Gnd 5 load current at constant chip temperature. life-test conditions after 1000 hours with maximum rated voltage and junction temperature. constant load and no input ripple, measured over a specified frequency range. does not contribute to the positive load current. The regulator ground lead current ...

Page 6

... Since both outputs are controlled by the same the CS8147 is ideal for applications where a sleep mode is required. Using the CS8147, a section of circuitry such as a display and nonessential 5V circuits can be shut down under microprocessor control to conserve energy. The test applications circuit diagram shows an automotive ...

Page 7

Smart IN Regulator } Control Features I Q Figure 1: Dual output regulator with key performance parameters labeled. Heat Sinks A heat sink effectively increases the surface area of the package to improve the flow of heat ...

Page 8

... TYP 1.70 (.067) 6.81(.268) Ordering Information Part Number Description CS8147YT5 5 Lead TO-220 Straight CS8147YTVA5 5 Lead TO-220 Vertical CS8147YTHA5 5 Lead TO-220 Horizontal Rev. 4/5/99 Package Specification Thermal Data 1.40 (.055) 4.83 (.190) 1.14 (.045) 4.06 (.160) 14.99 (.590) 6.55 (.258) 14.22 (.560) 5 ...

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