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參數(shù)資料
| 型號： | HA17384SRP |
| 廠商： | Hitachi,Ltd. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | High Speed Current Mode PWM Control IC for Switching Power Supply |
| 中文描述： | 高速開關(guān)電源電流模式PWM控制IC |
| 文件頁數(shù)： | 13/31頁 |
| 文件大小： | 145K |
| 代理商： | HA17384SRP |
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HA17384SPS/SRP, HA17384HPS/HRP, HA17385HPS/HRP
13
Power OFF
At power OFF, the input voltage of the transformer gradually decreases and then V
IN
of IC also decreases
according to the input voltage. When V
IN
becomes lower than 10 V*
2
or Vref becomes lower than 4.7 V,
UVL1 (UVL2) operates again and the PWM pulse stops.
Note: 2. The value is for the HA17384S/H.
The value is 7.6 V for the HA17385H.
Commercial AC voltage
Power switch
Line filter
Rectifier
bridge diode
DC
output
Floating
ground
Power MOSFET
ex. 2SK1567
SBD
ex. HRP24
OVP input
(Ex: from photocoupler)
20k
3.6k
100
μ
200V
1000
μ
10V
R
T
10k
V
CS
R
220k
1/4W
C
B
10
μ
50V
V
IN
0.1
μ
51
1k
+
B
P
S
HRP32
Vref
V
IN
OUT
GND
COMP
FB
HA17384H,
HA17385H
CS
R
T
/C
T
+
+
+
+
R
CS
1
2W
100p
150k
330p
C
T
3300p
Figure 2 Mounting Circut Diagram for Operation Expression
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HA17385HPS | High Speed Current Mode PWM Control IC for Switching Power Supply |
| HA17384 | 250000 SYSTEM GATE 1.5 VOLT FPGA |
| HA17393 | Dual Comparator |
| HA17903FPK | Dual Comparator |
| HA17393F | Dual Comparator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HA17385BPS | 制造商:Hitachi 功能描述:1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP8 |
| HA17385FP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:CURRENT MODE PWM CONTROL SWITTCHING REGULATOR ICS |
| HA17385HPS | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:High Speed Current Mode PWM Control IC for Switching Power Supply |
| HA17385HPS/HRP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:High Speed Current Mode PWM Control IC for Switching Power Supply |
| HA17385HRP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:High Speed Current Mode PWM Control IC for Switching Power Supply |
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