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Número de pieza | FA5639 | |
Descripción | Switching Power Supply Control IC | |
Fabricantes | Fuji | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de FA5639 (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
No Preview Available ! FA5639
Fuji Switching Power Supply Control IC
Green Mode PWM-IC
FA5639
Application Note
Fuji Electric Co., Ltd.
AN-085E Rev.1.0
Apr-2011
April-2011
Fuji Electric co.,Ltd.
1 http://www.fujielectric.co.jp/products/semiconductor/
1 page FA5639
4. Block diagram
FA5639 (Over Load Protection: Latch Shutdown type)
Start up
VH Current
ON - UVLO
+
5V Reg.
OFF
Reset
Internal Power Supply
Reset
OSC Dmax
VCC
30V
DBL
OUTPUT
OUT
5V
FB
IS
Freq control
input
Slope
OFF(FB)
-
+
+
Σ×
INV. AMP
Lv. Shift
1shot
CLR
IS comp.
+-+
OFF (IS)
+
-
RSFF
SQ
R
VCC
Start up
Management
Logic
Monitor Ctrl
ON
VCC + OVP
5V -
- OLP
+
T1
Ctrl
T2
OLP Timer
Over Load
T1:Delay time to OLP-Latch
VCC sustain
VCC
LAT
GND
- LAT
+
Over Load
UVLO
Latch Latch
Set
Reset
Fuji Electric Co., Ltd.
AN-085E Rev.1.0
Apr-2011
5 http://www.fujielectric.co.jp/products/semiconductor/
5 Page FA5639
Minimum ON pulse width vs Junction temperature (Tj)
320
310
300
290
280
270
260
250
-50
0 50 100
Junction temperature Tj [℃]
150
Maximum duty cycle vs Junction temperature (Tj)
90
88
86
84
82
80
-50
0 50 100
Junction temperature Tj [℃]
150
Start-up threshold voltage vs Junction temperature (Tj)
20
19
18
17
16
15
-50
0 50 100
Junction temperature Tj [℃]
150
Shutdown threshold voltage vs Junction temperature (Tj)
10
9
8
7
6
-50
0 50 100
Junction temperature Tj [℃]
150
Input Current of VH pin vs Junction temperature (Tj)
8
7
6
5
4
3
-50
0 50 100
Junction temperature Tj [℃]
150
Input Current of VH pin vs Junction temperature (Tj)
120
VH=450V
VCC=18V
110
100
90
80
-50
0 50 100
Junction temperature Tj [℃]
150
Fuji Electric Co., Ltd.
AN-085E Rev.1.0
Apr-2011
11 http://www.fujielectric.co.jp/products/semiconductor/
11 Page |
Páginas | Total 21 Páginas | |
PDF Descargar | [ Datasheet FA5639.PDF ] |
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FA5639 | Switching Power Supply Control IC | Fuji |
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