MIC2545A_04 Datasheet, PDF (9/16 Pages) Micrel Semiconductor – Programmable Current Limit High-Side Switch

MIC2545A/2549A
Functional Characteristics
Turn-On Response
500mA
MIC2545A-1
V_IN = 5V
C_L = 100µF
R_L = 10Ω
TIME (500µs/div.)
Current-Limit Response
Load Removed
Thermal Shutdown
Current-Limit Threshold 1.12A (I_TH)
I_SET = 1A
C = 5V
R_L = 1Ω
MIC2545A-1
TIME (100ms/div.)
Turn-Off Response
V_IN = 5V
C_L = 100 F
R_L = 10‰
500mA
MIC2545A-1
TIME (1ms/div.)
Micrel
Short-Circuit Response
Short Circuit
Current-Limit Threshold 1.12A
Short-Circuit Current
820mA (I_SHORT)
Thermal
Shutdown
MIC2545A-1
V_IN = 5V
TIME (100ms/div.)
Enable Into Short Circuit
Thermal
Shutdown
Short-Circuit Current
820mA
V_IN = 5V
R_SET = 240Ω
MIC2545A-1
TIME (100ms/div.)
Inrush Current Response
V_IN = 5V
R_L = 10Ω
C_L = 490µF
C_L = 130µF
MIC2545A-1
C_L = 10µF
TIME (500µs/div.)
April 2004
9
M9999-041204