Dual Output Off-Line Non-isolated Fly-back Power Solution
AP3917B 12V/20mA+3.8V20mA EV3 Board User
’s Guide
AP3917B EV3 Page 3 of 17 06-21-2019
Rev 1.0 www.diodes.com
Chapter2 Power Supply Specification
2.1 system performance
The system performance included in and output characters, specifications, EMC, protection, ect.
Items
Min.
Typ.
Max.
Comments
input characters
Input AC voltage rating
100V/60Hz
115/230
240V/50Hz
Two wire, no PE
Input AC voltage range
85V/60Hz
-
264V/50Hz
Input AC frequency range
47Hz
50/60
63Hz
Output characters
Output voltage 1
11.1V
12.0V
12.9V
Test at board terminal
Output voltage 1
3.61V
3.8V
3.99V
loading current 1
0
-
20mA
mA
loading current 2
4
-
20mA
performance specifications
Standby power
-
12mW
@230V/50Hz
Efficiency
-
74.32%/72.98%
-
@full load, 115V/230V
Ripple & Noise
12V
-
192mV
220mV
@full load
3.8V
-
101mV
150mV
Start up time
-
16.8ms
20ms
@full load, 85V/60Hz
EMC test
ESD test
Air
±15kV
-
-
@full load condition
contract
±8kV
-
-
Surge Test
±0.5kV
-
-
Differential mode, 2ohm,
1.2/50us
Conduction
EMI
110V
6dB margin
-
-
FCC Part 15 Class B
230V
6dB margin
-
-
EN55032
Protection function
SCP test
-
-
-
OK
OLP test
-
-
-
OK
OTP test
135
℃
150
℃
165
℃
OK
2.2 Environment
Operation temperature: -20
℃
~85
℃
Operation Humidity: 20%~90% R.H.
Storage temperature: 0~40
℃
Storage Humidity: 0%~95% R.H.