SC1538CS15 datasheet(3/4 Pages) SEMTECH

Part #	SC1538CS15

Description	DUAL LINEAR CONTROLLER

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Manufacturer	SEMTECH [Semtech Corporation]

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652 MITCHELL ROAD NEWBURY PARK CA 91320

DUAL LINEAR CONTROLLER

SC1538

PRELIMINARY - October 5, 1999

3

NOTES:

(1) See Application Circuit

(2) Connected to FET drains.

ELECTRICAL CHARACTERISTICS

Unless specified, T

A = 25°C. Values in bold apply over full operating temperature range.

Parameter

Symbol

Test Conditions

MIN

TYP

MAX

Units

VIN

Supply Voltage

VIN

11.28

12.00

12.72

V

Quiescent Current

I

Q

Both EN High

2

3

mA

4

One or both EN Low

1.5

2.0

mA

2.5

Undervoltage Lockout

Start Threshold

UVLO

7

8

9

V

Enable

Enable Pin Current

I

EN

Input = Low

50

100

µA

150

Threshold Voltage

V

TH

V

EN rising

1.6

2.3

V

Hysteresis

V

HYST

100

180

300

mV

Enable Delay Time

(1)

t

D(ON)

EN = Low to High, measured from

EN = V

TH to 10% DRV

500

ns

Disable Delay Time

(1)

t

D(OFF)

EN = High to Low, measured from

EN = V

TH to 90% DRV

150

ns

DRV

Output Current

I

DRV

5

10

mA

Output Voltage

V

DRV

Full On

9.0

10.5

V

Rise Time

(1)

t

r

EN = Low to High, measured from

EN = V

TH to 90% DRV

1.6

ms

Fall Time

(1)

t

f

550

ns

Output Voltage Regulation

Output Voltage

(1)

VO

3.0V

≤ V

FET

(2)

≤ 3.6V, 1mA ≤ I

O ≤ 1A

-1.5%

VO

+1.5%

V

-2.5%

+2.5%

Overcurrent Protection

Trip Threshold

V

OC

-20%

1.00

+15%

V

Power-up Output Short

Circuit Immunity

15

60

ms

Output Short Circuit Glitch

Immunity

0.5

4

6

ms

Control Section

Bandwidth

DRV = 9V, THD = 5%, C

L = 600pF

5

MHz

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