參數(shù)資料
型號: HA17385HRP
廠商: Hitachi,Ltd.
元件分類: 基準電壓源/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): 14/31頁
文件大小: 145K
代理商: HA17385HRP
HA17384SPS/SRP, HA17384HPS/HRP, HA17385HPS/HRP
14
V
COMP terminal
(Error output)
PWM pulse
Latch setting pulse
(Implemented in triagular
wave oscillator)
Latch setting
pulse
V
COMP
Error voltage
V
CS
Current sensing
level
R
S
Q
1 V
V
CS
CS terminal
2 R
R
2V
F
×
1
3
+CS
CS
latch
Figure 3 Operation Diagram of Current Sensing Part
Point:
C
T
C
Error Amplifier Output Voltage Vcomp (V)
Light load
Heavy load
1) At maximum rated load, the setting should be made to give
approximately 90% of area A below.
2) When the OVP latch is operated, the setting should be made
in area B or C.
1.0
0.8
0.6
0.4
0.2
0.00
1
2
3
4
5
6
7
8
B
A
C
1.4V
4.4V
7.5V
A : Stationary operation / PWM
(Current-mode operation)
B : Current limit operation / Max duty cycle
C : No sensitivity area / No PWM output
Figure 4 Current Sense Characteristics
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