LX1552 datasheet(10/18 Pages) MICROSEMI

Part #	LX1552

Description	ULTRA-LOW START-UP CURRENT, CURRENT-MODE PWM

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Manufacturer	MICROSEMI [Microsemi Corporation]

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ULTRA-LOW START-UP CURRENT, CURRENT-MODE PWM

LX1552/3/4/5

PRODUCT D A T ABOOK 1996/1997

Rev. 1.0a

1/01

10

P RODUCTIO N D ATA

S HEET

CHARACTERISTIC CU R VES

FIGURE 18. — MINIMUM OPERATING VOLTAGE vs.

TEMPERATURE

FIGURE 19. — MINIMUM OPERATING VOLTAGE vs.

TEMPERATURE

FIGURE 20. — LOW LEVEL OUTPUT SATURATION VOLTAGE

DURING UNDER-VOLTAGE LOCKOUT

FIGURE 17. — START-UP THRESHOLD vs. TEMPERATURE

15.0

15.8

(T

A)

Ambient Temperature - (°C)

15.4

16.0

15.2

16.2

16.4

15.6

-75

-50

-25

0

25

50

75

100

125

16.6

LX1552

LX1554

16.8

17.0

7.0

7.4

(T

A)

Ambient Temperature - (°C)

7.2

7.5

7.1

7.6

7.7

7.3

-75

-50

-25

0

25

50

75

100

125

7.8

LX1553

LX1555

7.9

8.0

1

0.1

0.00

0.48

Output Sink Current - (mA)

1.20

0.24

0.60

0.96

10

0.12

0.72

0.84

1.08

0.36

V

CC = 5V

T

A = -55°C

T

A = 25°C

T

A = 125°C

9.0

9.8

(T

A)

Ambient Temperature - (°C)

9.4

10.0

9.2

10.2

10.4

9.6

-75

-50

-25

0

25

50

75

100

125

10.6

LX1552

LX1554

10.8

11.0

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