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參數(shù)資料
| 型號： | HA16107P |
| 廠商： | Hitachi,Ltd. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Isolated Flyback Switching Regulator with 9V Output |
| 中文描述： | 隔離反激式開關(guān)穩(wěn)壓9V輸出 |
| 文件頁數(shù)： | 13/38頁 |
| 文件大?。?/td> | 170K |
| 代理商： | HA16107P |
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HA16107P/FP, HA16108P/FP
13
2. Use of ON/OFF Timer Pin (HA16108)
External Circuit
16
16
μ
A
4
μ
A
from CML
OVP with
latch timer
HA16108
ION
IOFF
+
ON/OFF Timer Operation
V
THH
7.0 V
0 V
t
1.2 V
V
THL
t
OFF
t
ON
OCL detected
(PWM output on)
PWM
output
shut down
OCL detected
(PWM output on)
Pulse-by-pulse current limiting
Notes: 1.
2.
3.
4.
t
ON
≈
C
×
5.8 V
(0.9
Du)
×
16
μ
A
4
μ
A
t
OFF
≈
C
×
5.8 V
4
μ
A
C is the capacitance of an external timing capacitor connected between this pin and ground.
Du is the ON-duty of the PWM output when overcurrent limiting is triggered.
The values of t
ON
and t
OFF
for TL can be determined by the same equations as given for
the ON/OFF timer, except that 5.8 V (V
THH
V
THL
) becomes V
THH
= 7 V.
If the timer goes off during soft start or in the undervoltage lockout region, after recovery,
output will come on after the soft-start time or after the rise time to the undervoltage lockout
release point, which is determined by the time constant.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| HA16107P-E | 制造商:Renesas Electronics Corporation 功能描述:Pwr management,SW Reg.Control |
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| HA16108FP-E | 制造商:RENE 功能描述: |
| HA16108FP-EL-E | 制造商:Renesas Electronics Corporation 功能描述: |
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