- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370417 > HA16114FPJ (Hitachi,Ltd.) ID ISC.ANT.MUX 8X ANT MULTIPLEXR PDF資料下載
參數(shù)資料
| 型號(hào)： | HA16114FPJ |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | ID ISC.ANT.MUX 8X ANT MULTIPLEXR |
| 中文描述： | 開關(guān)穩(wěn)壓器的斬波式直流/直流轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 19/38頁(yè) |
| 文件大小： | 275K |
| 代理商： | HA16114FPJ |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)當(dāng)前第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)
HA16114P/PJ/FP/FPJ, HA16120FP/FPJ
19
V
IN
C
F
R
F
C
L
IC
R
CS
OUT
V
OUT
F.B.
V
TH
(CL)
V
IN
0.2 V
V
IN
Sawtooth wave V
CT
Dead band V
DB
Error output V
E/O
PWM pulse output
(In case of HA16120)
Power MOS FET
drain current (I
)
(dotted line shows
inductor current)
Current limiter
pin (CL)
Inductor
L
Example of step-up circuit
I
D
Determined by L and V
IN
Determined by R
CS
and R
F
Figure 7.6
8. Setting the Overcurrent Detection Threshold
The voltage drop V
TH
at which overcurrent is detected in these ICs is typically 0.2 V. The bias current is
typically 200
μ
A. The power MOS FET peak current value before the current limiter goes into operation is
given as follows.
I
D
=V
TH
(R
F
+ R
CS
)
×
I
BCL
R
CS
Where, V
TH
= V
IN
– V
CL
= 0.2 V, V
CL
is a voltage refered on GND.
Note that R
F
and C
F
form a low-pass filter with a cutoff frequency determined by their RC time constant.
This filter prevents incorrect operation due to current spikes when the power MOS FET is switched on or
off.
R
0.05
V
IN
R
F
240
C
F
I
BCL
G
S
D
V
O
1 k
200 A
+
Detector
output
(internal)
OUT
CL
V
IN
IN(
)
To other
circuitry
1800 pF
+
Note: This circuit is an example for step-down use.
Figure 8.1 Example for Step-Down Use
With the values shown in the diagram, the peak current is:
I
D
=0.2 V
(240
+ 0.05
)
×
200
μ
A
0.05
The filter cutoff frequency is calculated as follows:
= 3.04 A
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 |
|---|---|
| HA16114FP | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| HA16114P | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| HA16120FP | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| HA16114PJ | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| HA16120FPJ | CAP 1000PF 25V 5% NP0(C0G) SMD-0603 TR-7 PLATED-NI/SN |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HA16114P | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Switching Regulator for Chopper Type DC/DC Converter |
| HA16114P/PJ/FP/FPJ/ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:HA16114P/PJ/FP/FPJ/ HA16120FP/FPJ Datasheet 504K/SEP.18.03 |
| HA16114P-E | 制造商:Renesas Electronics Corporation 功能描述:Power Sup,SW Reg.Control IC,S-Down,DIP16 |
| HA16114PJ | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Switching Regulator for Chopper Type DC/DC Converter |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。