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參數(shù)資料
| 型號： | HA16121FP |
| 廠商： | Hitachi,Ltd. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗輻射高效，5安培開關(guān)穩(wěn)壓器 |
| 文件頁數(shù)： | 20/34頁 |
| 文件大小： | 250K |
| 代理商： | HA16121FP |
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HA16116FP/FPJ, HA16121FP/FPJ
20
Overcurrent Detection Value Setting
The overcurrent detection value V
TH
for this IC series is 0.2 V (Typ) and the bias current is 200
μ
A (Typ)
The power MOS FET peak current value before the current limiter goes into operation is derived from the
following equation.
I
D
=V
TCL
(R
F
+ R
CS
)
I
BCL
R
CS
Here V
TH
= V
IN
– V
CL
= 0.2 V, V
CL
is a voltage referd on GND.
Note that C
F
and R
CS
form a low-pass filter, determined by their time constants, that prevents malfunctions
from current spikes when the power MOS FET is turned on or off.
R
CS
0.05
V
IN
R
F
240
C
F
I
BCL
V
CL
G
S
D
V
O
1 k
200 A
+
Detection
output
(internal)
OUT
CL
S.V
IN
IN(—)
To other
circuitry
1800 PF
+
This circuit is an example
for step-down output use.
Figure 8.1 Example for Step-Down Use
The sample values given in this figure are calculated from the following equation.
I
0.2 V
(240
+ 0.05
)
×
200
μ
A
0.05
= 3.04 [A]
The filter cutoff frequency is calculated as follows.
=
f
C
= 1
2
π
C
F
R
F
1
6.28
×
1800 pF
×
240
= 370 [kHz]
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HA16116FP | 1500000 SYSTEM GATE 1.5 VOLT FPGA |
| HA16116FPJ | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| HA16129FPJ | Single Watchdog Timer |
| HA16129 | 1500000 SYSTEM GATE 1.5 VOLT FPGA |
| HA16129AFPJ | Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp. |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HA16121FP-E | 制造商:Renesas Electronics 功能描述:DC DC Cntrlr Dual-OUT PWM DC to DC Controller/Step Up/Step Down 20-Pin SOP 制造商:Renesas Electronics 功能描述:DC DC Cntrlr Dual-OUT PWM DC to DC Controller/Step Up/Step Down 20-Pin SOP Cut Tape 制造商:Renesas Electronics Corporation 功能描述:Power Sup,SW Reg.Control IC,Boost,FP-20 |
| HA16121FPJ | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Switching Regulator for Chopper Type DC/DC Converter |
| HA16129 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Single Watchdog Timer |
| HA16129AFPJ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Regarding the change of names mentioned in the document, such as Hitachi Electric and Hitachi XX, to Renesas Technology Corp. |
| HA16129FPJ | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Single Watchdog Timer |
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