MIC2012_05 Datasheet, PDF (12/16 Pages) Micrel Semiconductor – USB Power Controller

MIC2012
AUX Ramped to Short by MOSFET
V_AUX = 5V
V_MAIN = S3# = 0V, EN = [ON]
RL_OAD toggles from >1k to <0.5
C_LOAD = 1F
TIME (25ms/div)
AUX Turn-On into Short
V_AUX =5V
V_MAIN = S3# = 0V
EN toggles from [OFF] to [ON]
C_LOAD = 100F
TIME (2.5ms/div)
AUX Inrush Current into Small C_LOAD
V_AUX =5V
V_MAIN = S3# = 0V
EN toggles from [OFF] to [ON]
I_LOAD < 10mA
C_LOAD = 10F
TIME (100s/div)
Main Turn-On into Short
Micrel
1.2A
V_MAIN = V_AUX =5V
S3# = 5V
EN toggles from [OFF] to [ON]
R_LOAD = Short
C_LOAD = 1F
TIME (2.5ms/div)
AUX Inrush Current into Large C_LOAD
230mA
V_AUX =5V
V_MAIN = S3#= 0V
EN toggles from [OFF] to [ON]
I_LOAD < 10mA
C_LOAD = 220F
TIME (2.5ms/div)
Main-to-AUX Cross Conduction
V_MAIN = V_AUX = 5V
S3# toggles from [HI] to [LO]
EN = [ON]
R_LOAD = 50
C_LOAD = 1F
950s
TIME (250s/div)
MIC2012/2072
12
January 2005