參數(shù)資料
型號(hào): HA17384
廠商: Hitachi,Ltd.
英文描述: 250000 SYSTEM GATE 1.5 VOLT FPGA
中文描述: 高速開關(guān)電源電流模式PWM控制IC
文件頁數(shù): 14/31頁
文件大小: 145K
代理商: HA17384
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
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HA17384FP 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:CURRENT MODE PWM CONTROL SWITTCHING REGULATOR ICS
HA17384HPS 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
HA17384HPS/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
HA17384HRP 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
HA17384PS 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:CURRENT MODE PWM CONTROL SWITTCHING REGULATOR ICS