APL3512
Operating Waveforms (Cont.)
The test condition is VIN=5V, TA= 25oC unless otherwise specified.
Soft Start Ramp-up Control
Current Limit Response
VEN
VIN
1
VOUT
CSS=820pF
1
2
CSS=560pF
CSS=unconnected
or SS tied to V
IN
CSS=330pF
CSS=5.6nF
CSS=4.4nF
IOUT
2
CSS=3.3nF
CSS=2.2nF
VOUT
3
VIN =5V,RLOAD =30W, CIN =1mF/MLCC,
COUT=33mF/Electrolytic
VIN =5V, CIN =1mF/MLCC,
COUT=33mF/Electrolytic
CH1: VIN, 2V/Div, DC
CH2: VOUT, 2V/Div, DC
CH1: VEN, 5V/Div, DC
CH2: VOUT, 2V/Div, DC
TIME: 0.5ms/Div
CH3: IOUT, 1A/Div, DC
TIME: 2ms/Div
Short Circuit Protection
VIN
VOUT
1
2
IOUT
3
VIN =5V, VOUT short to ground,
CIN =1mF/MLCC, COUT=33mF/Electrolytic
CH1: VIN, 2V/Div, DC
CH2: VOUT, 2V/Div, DC
CH3: IOUT, 20A/Div, DC
TIME: 100ms/Div
Copyright ã ANPEC Electronics Corp.
9
www.anpec.com.tw
Rev. A.6 - Aug., 2012
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
