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參數(shù)資料
| 型號(hào)： | HA17385HPS |
| 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)： | 25/31頁 |
| 文件大?。?/td> | 145K |
| 代理商： | HA17385HPS |
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HA17384SPS/SRP, HA17384HPS/HRP, HA17385HPS/HRP
25
Application Circuit Example (2)
Photocoupler
(for output control)
Commercial
AC 100V
Rectifier bridge diode
+
+
When the error amplifier is used
Line filter
Transformer specification
example
EI-22 type core
(H7C18
×
06Z)
Gap length
lg = 0.3mm
Transformer coil example
P: 0.580T/570
μ
H
S: 0.516T Bifiler/22
μ
H
B: 0.244T/170
μ
H
(Operation Theory)
On the secondary side (S) of the flyback converter,
error amplification is carried out by a shunt
regulator and photocoupler.
The voltage of the backup coil (B) is not monitored,
which differs from the application example (1).
In addition, OVP operates on the secondary side
(S) using a photocoupler.
Refer to the application example (1) for the other
notes.
When the error
amplifier is not used
Bleeder resistor
(adjuster according
to the rating of the
Photocoupler)
100
μ
200V
1000
μ
10V
R
T
10k
220k
1/4W
10
μ
50V
V
IN
16.4V
141V
0.1
μ
51
1k
4.7k
B
P
S
HRP32
DC
5V, 3A
OUTPUT
Vref
V
IN
OUT
GND
COMP
FB
HA17384H,
HA17385H
HA17431
2SK1567
SBD
HRP24
CS
R
T
/C
T
R
T
/C
T
+
+
+
1.8k
B
4.7k
1
2W
100p
150k
470p
C
T
3300p
330
3.3
μ
+
3.3k
Vref
V
IN
OUT
GND
FB
CS
0.8mA
COMP
OVP input
1k
47k
HA17431
2SA1029
10k
10k
Figure 13 Secondary Voltage Sensing Flyback Converter
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| HA17385HRP(E) | 制造商:Renesas Electronics Corporation 功能描述: |
| HA17385PS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Mode SMPS Controller |
| HA17393 | 制造商:Panasonic Industrial Company 功能描述:I.C. |
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