參數(shù)資料
型號(hào)： HA16114PJ
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(yè)數(shù)： 16/38頁(yè)
文件大?。?/td> 275K
代理商： HA16114PJ
HA16114P/PJ/FP/FPJ, HA16120FP/FPJ
16
R
C
R
D
TM
(open)
ON/OFF
GND
10 k
V
IN
V
IN
Q
1
Q
2
Q
3
Vref output
Vref
generation
circuit
To other circuitry
To latch
Vref
3
2
1
00
1
2
V
ON/OFF
3
4
5
V
1.4 V
2.5 V
V 4.5 V
On/off hysteresis circuit
V
0.7 V
3V
BE
I
IN
Figure 6.2 Adjustment of UVL Voltages
7. Timing of Intermittent Mode during Overcurrent
7.1 Principle of Operation
These ICs provide pulse-by-pulse overcurrent protection by sensing the current during each pulse and
shutting off the pulse if overcurrent is detected. In addition, the TM and ON/
OFF
pins can be used to
operate the IC in intermittent mode if the overcurrent state continues. A power supply with sharp settling
characteristics can be designed in this way.
Intermittent mode operates by making use of the hysteresis of the ON/
OFF
pin threshold voltages V
ON
and
V
OFF
(V
ON
– V
OFF
= V
BE
). The timing can be programmed as explained below.
When not using intermittent mode, leave the TM pin open, and pull the ON/
OFF
pin up to V
ON
or higher.
The V
BE
is base emitter voltage of internal transistors.
390 k
2.2 k
2.2 F
+
R
R
C
A
B
ON/OFF
ON/OFF
TM
Latch
Q
R
S
Vref
reference
V
IN
Current
limiter
CL
Figure 7.1 Connection Diagram (example)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HA16116 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Switching Regulator for Chopper Type DC/DC Converter
HA16116FP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Switching Regulator for Chopper Type DC/DC Converter
HA16116FP/FPJ/ 制造商:未知廠家 制造商全稱:未知廠家 功能描述:HA16116FP/FPJ/ HA16121FP/FPJ Datasheet 443K/SEP.18.03
HA16116FP-E 制造商:Renesas Electronics 功能描述:DC DC Cntrlr Dual-OUT PWM DC to DC Controller/Step Down 20-Pin SOP Bulk
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