參數(shù)資料
型號: HA17385HRP
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(開關(guān)電源的高速電流模式PWM控制芯片)
中文描述: 高速開關(guān)電源電流模式PWM控制IC(開關(guān)電源的高速電流模式的PWM控制芯片)
文件頁數(shù): 24/31頁
文件大?。?/td> 145K
代理商: HA17385HRP
HA17384SPS/SRP, HA17384HPS/HRP, HA17385HPS/HRP
24
Application Circuit Example (1)
Notes:
P
Snubber circuit
example
51
470p
1kV
FRD
DFG1C8
1. : PRIMARY GND, : SECONDARY GND.
2. Check the wiring direction of the transformer coil.
3. Insert a snubber circuit if necessary.
4. OVP function is not included in HA17384SPS/SRP.
Commercial
AC 100V
Rectifier bridge diode
+
+
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
S
(Opetation Theory)
Because this circuit is a flyback type, the voltages in the
primary (P), secondary (s) coils of the transformer and
backup (B) coil are proportional to each other. Using this,
the output voltage of the backup coil (V
IN
of IC) is controlled
at constant 16.4V. (The voltage of the point divided by
resistors of 20k
and 3.6k
is 2.5V).
20k
3.6k
100
μ
200V
1000
μ
10V
R
T
10k
220k
1/4W
10
μ
50V
V
IN
16.4V
0.1
μ
51
1k
1k
B
P
S
HRP32
DC 5V, 3A
OUTPUT
Vref
V
IN
OUT
GND
COMP
FB
HA17384H,
HA17385H
2SK1567
SBD
HRP24
CS
R
T
/C
T
+
+
+
1
2W
100p
150k
470p
C
3300p
141V
10k
2SA1029
HA17431
10k
47k
Figure 12 Primary Voltage Sensing Flyback Converter
相關(guān)PDF資料
PDF描述
HA17384HRP High Speed Current Mode PWM Control IC for Switching Power Supply
HA17384SRP High Speed Current Mode PWM Control IC for Switching Power Supply
HA17385HPS High Speed Current Mode PWM Control IC for Switching Power Supply
HA17384 250000 SYSTEM GATE 1.5 VOLT FPGA
HA17393 Dual Comparator
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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.
HA17393/ASERIES 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
HA17393A 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Dual Comparators