CS8121 datasheet(2/8 Pages) CHERRY

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Electrical Characteristics: IOUT = 5mA, -40ûC ² TJ ²150ûC , 7V ² VIN ² 26V, -40¡C ² TA ² 125¡C unless otherwise specified

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Absolute Maximum Ratings

DC Input Voltage ...........................................................................................................................................................-0.7 to 26V

Peak Transient Voltage (46V Load Dump).............................................................................................................................60V

Output Current .................................................................................................................................................Internally Limited

Electrostatic Discharge (Human Body Model) ......................................................................................................................2kV

Operating, Temperature ..........................................................................................................................................-40C to 125¡C

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

Storage Temperatures.............................................................................................................................................-55¡C to 150¡C

Lead Temperature Soldering

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

Reflow (SMD styles only) ......................................................................................60 sec. max above 183¡C, 230¡C peak

s Output Stage

Output Voltage, VOUT

7V ² VIN ² 26V, 1mA ² IOUT ² 1A

4.8

5.0

5.2

Line Regulation

7V ² VIN ² 26V, IOUT = 5mA

Load Regulation

5mA ² IOUT ²1A

Supply Voltage Rejection

VIN = 14VDC + 1VRMS

@120Hz, ILOAD = 50½

Dropout Voltage

IOUT = 1A

1.2

1.8

Quiescent Current

= High, VIN = 12V

0.25

0.65

= Low, IOUT = 1A

s Protection Circuits

Short Circuit Current

1.5

Thermal Shutdown

150

190

ûC

Overvoltage Shutdown

Saturation Voltage

1V < VOUT < VRT(OFF), 3.1k½ pull-up

0.1

0.4

to VOUT

Output Leakage

= Low

µA

Current

VOUT > VRT(ON), V

= VOUT

Power ON/OFF

3.1k½ pull-up to VOUT

0.7

1.0

Peak Output Voltage

Threshold ON

VOUT - 0.10

VOUT - 0.04

(VOUT Increasing)

Threshold OFF

4.75

VOUT - 0.14

(VOUT Decreasing)

Threshold Hysteresis

Input High Voltage

7V < VIN < 26V

2.9

3.9

Input Low Voltage

7V < VIN < 26V

1.1

2.1

Input Hysteresis

7V < VIN < 26V

0.4

0.8

2.8

Input Current

Gnd < VIN(HI) < VOUT

±10

µA

ENABLE

RESET

ENABLE

RESET

ENABLE

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