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參數(shù)資料
| 型號(hào)： | HA16654 |
| 廠商： | Hitachi,Ltd. |
| 元件分類： | FPGA |
| 英文描述： | 2000000 SYSTEM GATE 1.5 VOLT FPGA |
| 中文描述： | PWM控制開關(guān)穩(wěn)壓器 |
| 文件頁數(shù)： | 12/15頁 |
| 文件大?。?/td> | 85K |
| 代理商： | HA16654 |
HA16654A, HA16664A Series
12
C = 220 pF
C = 560 pF
10 k
20 k
50 k
100 k
200 k
100 k
150 k
200 k
Timing Resistor R ( )
10 k
20 k
50 k
100 k
200 k
100 k
200 k
500 k
O
O
Timing Resistor R (k )
C = 560 pF
C =220 pF
OSC Frequency vs. Timing Resistor (HA16654A)
OSC Frequency vs. Timing Resistor (HA16664A)
200
300
400
500 600
C (pF)
10
8
6
2
4
a
6
1.6
1.5
1.4
1.2
1.3
a
b
b
Formula for the oscillation frequency f
f = 1 / [ {C
T
(R
T
+ 1
×
10
3
)(a
R
T
+ b) / (Vref
V
BE
)} + 100
×
10
9
]
C
T
: Timing capacitor (F)
R
T
: Timing resistor (
)
Vref : Reference voltage 5.0 (V) (Typ)
V
BE
: Base-emitter voltage 0.65 (V) (Typ)
Also,
f
≈
4.35 / (C
T
R
T
)
C
T
(pF)
220
560
a
2.30
×
10
6
8.37
×
10
6
b
1.247
1.575
The following table show empirical values of
a and b for different values of C
T
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HA16654A | Isolated Flyback Switching Regulator with 9V Output |
| HA16666FP | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| HA16666 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| HA16666P | 2000000 SYSTEM GATE 1.5 VOLT FPGA |
| HA16686MP | READ PULSE GENERATOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HA16654A | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:PWM Controlled Switching Regulator |
| HA16654AFP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:PWM Controlled Switching Regulator |
| HA16654APS | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:PWM Controlled Switching Regulator |
| HA16662MP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:HDD Interface Circuit |
| HA16664AFP | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:PWM Controlled Switching Regulator |
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