體積非常迷你，只有拇指大小
Input: 3-28VDC
Output:12-250VDC (Adjust by single resister, default:180VDC)
Efficiency: 87% (180V@35mA, Vin=12V)
Power out: 15W (Max Vin=28V)
Output setting:Programmed with a single resistor to ground
Module size: 20mm*16mm*8.5mm
Table 1: Electrical Specifications
Specification
|
Min
|
Typ
|
Max
|
Units
|
Notes
|
Vin*1
(Input Voltage)
|
---
|
---
|
28
|
Volts
| |
3
|
---
|
---
|
Volts
|
Pout < 4.0W
| |
---
|
---
|
28
|
Volts
|
Pout<15W
| |
VEN-Thresh*2
(Enable pin)
|
---
|
---
|
0.45
|
Volts
| |
2
|
---
|
---
|
Volts
| ||
VEN-Current
|
1.5
|
---
|
6.5
|
uAmps
| |
Shutdown current
|
---
|
3.5
|
6
|
uAmps
| |
Vout*3
|
12
|
---
|
250
|
Volts
|
By single resistor
|
Efficiency
|
---
|
87
|
---
|
%
|
180V@35mA, Vin=12V
|
Notes:
1. Include input reverse polarity protection is provide.
2. Enable pin can floating the pin or connect to MCU. By using this pin for clock synchronization.
3. Output of module is short circuit protected via pulse-pulse current limiting.
由於追求體積小的目標，調整電壓必須自行修改電阻值，計算公式很簡單
可以依照需求自行更換電阻，換取不同的輸出電壓範圍
設計採用電容耐壓為250V 作基礎，如需要更高的輸出電壓，需要更換1812 size電容
整流二極體採用 ES1G 可以耐壓400V, 因此NP10 更換電容後有機會可達輸出400V需求
Fourma: Vout = 1.25*(1+(R1+R3)/R5)
R1/R2 0805 size; R5 0603 size
Table
2: Setup output voltage
R1
|
R3
|
R5
|
Vout
|
|
Default
|
910K
|
820K
|
12K
|
181V
|
Exp1
|
910K
|
820K
|
200K
|
12V
|
Exp2
|
910K
|
820K
|
9.1K
|
238V
|
後記: 這是一款高效率DC-DC Step-UP 高壓產生電路，操作時務必做好個人安全保護，通電中不要碰觸任何物件，避免造成觸電