參數(shù)資料
型號(hào)： HA16108FP
廠(chǎng)商： Hitachi,Ltd.
元件分類(lèi)： FPGA
英文描述： 1500000 SYSTEM GATE 1.5 VOLT FPGA
中文描述： PWM開(kāi)關(guān)穩(wěn)壓器的高性能電壓模式控制
文件頁(yè)數(shù)： 10/38頁(yè)
文件大小： 170K
代理商： HA16108FP
HA16107P/FP, HA16108P/FP
10
Vref Protection Functions: Overvoltage and Undervoltage
Vref overvoltage and undervoltage conditions are detected by the overvoltage detection circuit and UVL2
circuit. PWM output shuts down when Vref
≥
8 V. UVL2 detects undervoltage with hysteresis between
approximately 4 V and 5 V. PWM output also shuts down below these voltages. It follows that PWM
output will shut off whenever the Vref pin is shorted to the power supply (V
IN
) or ground (GND). PWM
output also shuts off when V
IN
is turned on or off.
The following diagram shows how these protection functions operate when power comes on and goes off
(Vref < 6.45 V), and when a high external voltage is applied to the Vref pin (Vref > 6.45 V).
PWM output shut-
down region
PWM output
operating region
Power-off,
or shorted
to ground
PWM
OUT
PWM output
shut-down region
Power-up
Shorted to
power supply
0
4 V 5 V
6.45 V 8 V
10 V
UVL2
Vref
OVP
Vref
1. Current-Limiter Circuit
The current limiter pin (CL) is connected to the emitter of an npn transistor, as shown in the block
diagram. The threshold voltage is 240 mV typ. The switching speed of this circuit is approximately
100 ns from detection of overcurrent to shut-down of PWM output. Switching speed increases with the
strength of the signal input to the CL pin.
Instead of simple pulse-by-pulse current limiting, in these ICs the current limiting circuit is linked to the
timer-and-latch or ON/OFF timer circuit, and also detects the degree of overcurrent. The overcurrent
value is determined from the point at which current limiting is triggered in the ON-duty cycle. With a
large overcurrent (causing current limiting to operate even at a small ON-duty), the IC automatically
shortens the timer time.
相關(guān)PDF資料
PDF描述
HA16108P 1500000 SYSTEM GATE 1.5 VOLT FPGA
HA16113 Dual Watchdog Timers
HA16113FPJ Dual Watchdog Timers
HA16114FPJ ID ISC.ANT.MUX 8X ANT MULTIPLEXR
HA16114FP RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HA16108FP-E 制造商:RENE 功能描述:
HA16108FP-EL-E 制造商:Renesas Electronics Corporation 功能描述:
HA16108P 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:PWM Switching Regulator for High-performance Voltage Mode Control
HA16113 制造商:HITACHI 制造商全稱(chēng):Hitachi Semiconductor 功能描述:Dual Watchdog Timers
HA16113FPJ 制造商:HITACHI 制造商全稱(chēng):Hitachi Semiconductor 功能描述:Dual Watchdog Timers
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠(chǎng)商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*