CS8371 datasheet(2/8 Pages) CHERRY

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PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Electrical Characteristics: -40¡C ² TA ² +85¡C, 10.5V ² VCC ² 16.0V, ENABLE1 = ENABLE2 = 5.0V,

IOUT1 = IOUT2 = 5.0mA, unless otherwise stated.

s Primary Output (VOUT1)

Output Voltage

IOUT1 = 1.0A

7.60

8.00

8.40

Line Regulation

10.5V ² VCC ² 26V

Load Regulation

5mA ² IOUT1 ² 1.0A

150

Sleep Mode Quiescent

VCC = 14V, ENABLE1 = ENABLE2 = 0V

0.2

10.0

µA

Current

Quiescent Current

VCC = 14V, IOUT1 = 1.0A, IOUT2 = 250mA

Dropout Voltage

IOUT1 = 250mA

1.2

Dropout Voltage

IOUT1 = 1.0A

1.5

Quiescent Bias Current

IOUT1 = 5mA, ENABLE2 = 0V, VCC = 14V

IQ = ICC - IOUT1

Quiescent Bias Current

IOUT1 = 1.0A, ENABLE2 = 0V, VCC = 14V

IQ = ICC - IOUT1

Ripple Rejection

f = 120Hz, VCC = 14V with 1.0VPP AC,

COUT = 0µF

f = 10kHz, VCC = 14V with 1.0VPP AC,

COUT = 0µF

f = 20kHz, VCC = 14V with 1.0VPP AC,

COUT = 0µF

Current Limit

VCC = 16V

1.1

2.5

Overshoot Voltage

5mA ² IREG1 ² 1.0A

6.0

Output Noise

10Hz-100kHz

300

µVrms

s Secondary Output (VOUT2)

Output Voltage

IOUT2 = 250mA

4.75

5.00

5.25

Line Regulation

7V ² VCC ² 26V

Load Regulation

5mA ² IOUT2 ² 250mA

100

Dropout Voltage

IOUT2 = 5.0mA

2.2

Dropout Voltage

IOUT2 = 250mA

2.5

Quiescent Bias Current

IOUT2 = 5mA, ENABLE1 = 0V, VCC = 14V

IQ = ICC - IOUT2

Quiescent Bias Current

IOUT2 = 250mA, ENABLE1 = 0V, VCC = 14V

IQ = ICC - IOUT2

Ripple Rejection

f = 120Hz, VCC = 14V with 1.0 VPP AC,

COUT = 0µF

f= 10kHz, VCC = 14V with 1.0VPP AC,

COUT = 0µF

f = 20kHz, VCC = 14V with 1.0VPP AC,

COUT = 0µF

Absolute Maximum Ratings

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

ENABLE Input Voltage Range .............................................................................................................................-0.6V to +10.0V

Load Current (8V Regulator)...........................................................................................................................Internally Limited

Load Current (5V Regulator)...........................................................................................................................Internally Limited

Transient Peak Voltage (31V load dump @ 14V VCC) ...........................................................................................................45V

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

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

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

CS8371 Datasheet(PDF) 2 Page - Cherry Semiconductor Corporation

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