CS8121 Просмотр технического описания (PDF) - Cherry semiconductor

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CS8121

5V, 1A Linear Regulator with and RESET ENABLE

Cherry semiconductor 

Package Lead Description

PACKAGE LEAD #

7 Lead

D2PAK

5 Lead TO-220 &

Overmolded TO-220

1

2

1

LEAD SYMBOL

NC

VIN

FUNCTION

No Connection.

Supply voltage to IC, usually direct from the battery.

3

2

ENABLE

CMOS compatible logical. VOUT is disabled i.e. placed in a

high impedance state when ENABLE is high.

4

3

Gnd

Ground connection.

5

4

RESET

CMOS compatible output lead. RESET goes low whenever

VOUT falls out of regulation. The RESET delay is externally

programmed.

6

5

VOUT

Regulated output voltage, 5V (typ).

7

VOUT(SENSE) Remote sensing of output voltage.

Typical Performance Characteristics

Output Voltage vs. Temperature

Load Regulation vs. Output Current Over Temperature

5.02

5.01

5

4.99

4.98

5.00V @ 25ûC

IOUT = 100mA

4.97

4.96

4.95

-40 -20 0

20 40 60 80 100 120 140 150

Junction Temperature (ûC)

0

-5

-10

-15

-20

-25

-30

-35

-40

-45

-50

0

125°C

Ð40°C

25°C

VIN =14V

200

400

600

800

1A

IOUT (A)

Line Regulation vs. Output Current Over Temperature

50

VIN = 7 to 26V

40

30

20

125ûC

25ûC

10

-40ûC

0

-10

0

0.2

0.4

0.6

IOUT(A)

0.8

1A

Dropout Voltage vs. Output Current Over Temperature

1.5

1.4

1.3

1.2

1.1

1.0

0.9

-40°C

0.8

0.7

25°C

0.6

125°C

0.5

0.4

0.3

0.2

0.1

0.0

0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

IOUT (A)

3

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