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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)： | 19/31頁 |
| 文件大?。?/td> | 145K |
| 代理商： | HA17384SRP |
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HA17384SPS/SRP, HA17384HPS/HRP, HA17385HPS/HRP
19
O
Timing resistance R
T
(
)
500
200
100
50
20
10
5
500
1k
2k
5k
10k
20k
50k 100k 200k
Ta = 25C
V
IN
= 15V
2200pF
4700pF
001
μ
F
0022
μ
F
0047
μ
F
1000pF
C
T
=470pF
Figure 7 Oscillation Frequency vs. Timing Resistance
Triangular wave
PWM maximum ON pulse
In the case of small C
T
and large R
T
(ex. C
T
= 3300pF, R
T
= 10k
)
Du max = 95%
fosc = 52kHz
Triangular wave
PWM maximum ON pulse
In the case of large C
T
and small R
T
(ex. C
T
= 0.033
μ
F, R
T
= 680
)
Du max = 40%
fosc = 52kHz
Case 1.
Setting large maximum duty cycle.
Case 2.
Setting small maximum duty cycle.
Figure 8 Relationship Between Triangular Wave and Maximum ON Duty of PWM Pulse
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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