SC1548_04 Datasheet, PDF (10/14 Pages) Semtech Corporation – Linear FET Controller

POWER MANAGEMENT
Typical Characteristics (Cont.)⁽¹⁾
Drive Output Fall Time, t
f
SC1548
Enable Delay Time, t
D(ON)
Trace 1: V_DRV, 1V/div.
Trace 2: V_EN, 2V/div.
Timebase: 100ns/div
t_f ≈ 350ns
Drive Output Rise Time, t
r
Trace 1: V_DRV, 1V/div.
Trace 2: V_EN, 2V/div.
Timebase: 250ns/div
t_D(ON) ≈ 550ns
Power-up Output Short Circuit Immunity
Trace 1: V_DRV, 1V/div.
Trace 2: V_EN, 2V/div.
Timebase: 500µs/div
t_r ≈ 1ms
 2004 Semtech Corp.
Trace 1: V_DRV, 5V/div.
Trace 2: V_EN, 2V/div.
Timebase: 2ms/div
SC1548 enabled into a short, therefore V_OUT < V_TH(OC)
immediately the device is enabled. This device shuts
down after 8ms.
10
www.semtech.com