SC1548 データシートの表示（PDF） - Semtech Corporation

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SC1548

Linear FET Controller

Semtech Corporation 

POWER MANAGEMENT

Typical Characteristics (Cont.)(1)

Drive Output Fall Time, t

f

SC1548

Enable Delay Time, t

D(ON)

Trace 1: VDRV, 1V/div.

Trace 2: VEN, 2V/div.

Timebase: 100ns/div

tf ≈ 350ns

Drive Output Rise Time, t

r

Trace 1: VDRV, 1V/div.

Trace 2: VEN, 2V/div.

Timebase: 250ns/div

tD(ON) ≈ 550ns

Power-up Output Short Circuit Immunity

Trace 1: VDRV, 1V/div.

Trace 2: VEN, 2V/div.

Timebase: 500µs/div

tr ≈ 1ms

 2004 Semtech Corp.

Trace 1: VDRV, 5V/div.

Trace 2: VEN, 2V/div.

Timebase: 2ms/div

SC1548 enabled into a short, therefore VOUT < VTH(OC)

immediately the device is enabled. This device shuts

down after 8ms.

10

www.semtech.com

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