Cherry Semiconductor CS8147YTVA5, CS8147YTHA5, CS8147YT5 Datasheet

■ Two Regulated Outputs

10V ± 5%; 500 mA

5V ± 3%; 70 mA

■ 70µA SLEEP Mode Current

■ Inherently Stable

Secondary Output
(No Output Capacitor

Required)

■ Fault Protection

Overvoltage Shutdown
Reverse Battery
60V Peak Transient

-50V Reverse Transient
Short Circuit
Thermal Shutdown

■ CMOS Compatible

Input with Low

(I

OUT(max)

) Input Current.

ENABLE

1

Features

Package Options

5 Lead TO-220

Tab (Gnd)

1

CS8147

10V/5V Low Dropout Dual Regulator

with

ENABLE

CS8147

Description

Block Diagram

Absolute Maximum Ratings

Input Voltage (V

IN

)

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

Positive Peak Transient Voltage

(46V Load Dump @ VIN= 14V) .......................................................60V

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

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

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

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

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

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

Lead Temperature Soldering

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

ENABLE

The CS8147 is a 10V/5V dual out­put linear regulator. The 10V ±.5%
output sources 500mA and the 5V
±3% output sources 70mA. The
secondary output is inherently sta­ble and does not require an external
capacitor.

The on board function
controls the regulatorÕs two out­puts. When is high, the
regulator is placed in SLEEP mode.
Both outputs are disabled and the

regulator draws only 70µA of qui­escent current.

The regulator is protected against
overvoltage conditions. Both out­puts are protected against short
circuit and thermal runaway
conditions.

The CS8147 is packaged in a 5 lead
TO-220 with copper tab. The cop­per tab can be connected to a heat
sink if necessary.

ENABLE

ENABLE

1
2 V

IN

3 Gnd
4V

OUT1

(10V)

5V

OUT2

(5V)

ENABLE

A Company

¨

Rev. 4/5/99

Cherry Semiconductor Corporation

2000 South County Trail, East Greenwich, RI 02818

Tel: [phone] Fax: [phone]

Email: [e-mail]

Web Site: www.cherry-semi.com

V

IN

ENABLE

­Pre-Regulator

+

Primary Output

Over Voltage

Shutdown

+

-

Anti-saturation

and

Current Limit

V

OUT1

Gnd

Bandgap

Reference

Thermal

Shutdown

Secondary Output

-

+

Current Limit

V

OUT2

2

CS8147

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Electrical Characteristics for V

OUT

: VIN= 14V, I

OUT1

= I

OUT2

= 5mA, -40¡C < TJ< 150¡C, -40¡C ² TA² 125ûC,

= LOW; unless otherwise specified.

ENABLE

Package Lead Description

PACKAGE LEAD # LEAD SYMBOL FUNCTION

5 Lead TO-220

1 CMOS compatible input lead; switches V

OUT1

and V

OUT2

on

and off. When is low, V

OUT1

and V

OUT2

are active.

2V

IN

Supply voltage, usually direct from battery.
3 Gnd Ground connection.
4V

OUT1

Regulated output 10V, 500mA (typ)
5V

OUT2

Secondary output 5V, 70mA (typ).

ENABLE

ENABLE

■ Primary Output (V

OUT1

)

Output Voltage 13V ² V

IN

² 26V, I

OUT1

² 500mA, 9.50 10.00 10.50 V

Dropout Voltage I

OUT1

= 500mA 0.5 0.7 V

Line Regulation 11V ² V

IN

² 18V, I

OUT1

= 250mA 45 90 mV

Load Regulation 5mA ² I

OUT1

² 500mA 15 75 mV

Quiescent Current I

OUT1

² 1mA, No Load on V

OUT2

, V

IN

= 18V 3 7 mA

I

OUT1

= 500mA, No Load on V

OUT2

, V

IN

= 11V 60 120 mA

Quiescent Current = HIGH 70 200 µA

V

OUT1,VOUT2

= OFF
Current Limit 0.55 0.80 A
Long Term Stability 50 mV/khr
Over Voltage Shutdown V

OUT1

and V

OUT2

32 36 40 V

■ Secondary Output (V

OUT2

)

Output Voltage 6V ² V

IN

² 26V, 1mA ² I

OUT2

² 70mA 4.85 5.00 5.15 V

Dropout Voltage I

OUT2

² 70mA 1.5 2.5 V

Line Regulation 11 ² V

IN

² 18V, I

OUT

= 70µA 4 50 mV

Load Regulation 1mA ² I

OUT2

² 70mA, V

IN

= 14V 10 50 mV

Current Limit 150 mA

■ Function ( )

Input Threshold V

OUT2(ON)

1.40 2.50 V

V

OUT1(OFF)

.8 1.40 V

Input Current Input Voltage Range 0 to 5V -10 10 µA

ENABLE

ENABLE

ENABLE

ENABLE

ENABLE

3

Typical Performance Characteristics

Output Current (mA)

Dropout Voltage (mV), V

OUT

1

0 50 100 150 200 300 350 400 450 500 550 600250

0

50

100

150

200

250

300

350

400

450

500

550

600

125°C

25°C

-40°C

Dropout Voltage vs. Output Current (V

OUT1

)

Output Current (mA) V

OUT2

(5V)

Dropout Voltage (V), V

OUT

2

0

10

0

0.20

125°C

25°C

-40°C

20 30 40 50 60 70 80 90 100

0.40

0.60

0.80

1.00

1.20

1.40

1.60

1.80

2.00

VIN = 6.00V

Output Current (mA)

Quiescent Current (mA)

0 50 100 150 200 300 350 400 450 500 550 600250

0

10

100

20

30

40

50

60

70

80

90

125°C

25°C

-40°C

V

IN

= 14V

Output Current (mA), V

OUT2

(5V)

Quiescent Current (mA)

0

10

0

1

125°C

25°C

-40°C

20 30 40 50 60 70 80 90 100

2

3

4

5

6

7

V

IN

= 14V

Quiescent Current vs. Output Current (V

OUT2

)

Quiescent Current vs. Output Current (V

OUT1

)

Dropout Voltage vs. Output Current (V

OUT2

)

Temp (C°)

PART1 V

IN

=14V, RLOAD=0

V

OUT

(Volts)

-50

4.98

4.99

5.00

5.01

5.02

-40 -30 -20 -10 0 10 20 30 40 50 60 80 90 100 110 120 13070 140

Output Current (mA), V

OUT

1

(10V)

Line Regulation (mV)

0 50 100 150 200 300 350 400 450 500 550 600250

0

10

100

20

30

40

50

60

70

80

90

-40°C

110

120

125°C

V

IN

= 11V - 26V

25°C

Line Regulation vs. Output Current (V

OUT1

)

V

OUT

2

vs. Temperature

CS8147