APW7098
Operating Waveforms (Cont.)
External Step-Up Reference by V
REFIN/EN
V
REFIN/EN
1
V
FB
V
SS
2
3
4
CH1: V
REFIN/EN
(1V/div)
CH2: V
FB
(500mV/div)
CH3: V
SS
(1V/div)
CH4: I
OUT
(10A/div)
Time: 200µs/div
I
OUT
External Step-Down Reference by V
REFIN/EN
V
REFIN/EN
1
V
FB
V
SS
2
3
4
I
OUT
CH1: V
REFIN/EN
(1V/div)
CH2: V
FB
(500mV/div)
CH3: V
SS
(1V/div)
CH4: I
OUT
(10A/div)
Time: 200µs/div
Power On Without V
IN2
Voltage
V
OUT
1
V
PHASE1
2
V
PHASE2
3
V
ss
CH1: V
OUT
(1V/div)
CH2: V
PHASE1
(10V/div)
CH3: V
PHASE2
(2V/div)
CH4: V
SS
(2V/div)
Time: 5ms/div
2
1
Under-Voltage Protection (UVP)
V
FB
V
PHASE1
V
PHASE2
3
V
ss
4
CH1: V
FB
(500mV/div)
CH2: V
PHASE1
(10V/div)
CH3: V
PHASE2
(10V/div)
CH4: V
SS
(2V/div)
Time: 200µs/div
4
Copyright
©
ANPEC Electronics Corp.
Rev. A.6 - Oct., 2009
9
www.anpec.com.tw
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
