參數(shù)資料
型號(hào)： TPS54310MPWPREP
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 6 A SWITCHING REGULATOR, 775 kHz SWITCHING FREQ-MAX, PDSO20
封裝： PLASTIC, HTSSOP-20
文件頁(yè)數(shù)： 7/19頁(yè)
文件大小： 487K
代理商： TPS54310MPWPREP
Thermal Shutdown
Power Good (PWRGD)
www.ti.com ..................................................................................................................................................................................................... SLVS818 – APRIL 2008
The device uses the thermal shutdown to turn off the
The power good circuit monitors for under voltage
power MOSFETs and disable the controller if the
conditions on VSENSE. If the voltage on VSENSE is
junction temperature exceeds 150
°C. The device is
10% below the reference voltage, the open-drain
released
from
shutdown
when
the
junction
PWRGD output is pulled low. PWRGD is also pulled
temperature decreases to 10
°C below the thermal
low if VIN is less than the UVLO threshold, or
shutdown trip point and starts up under control of the
SS/ENA is low, or thermal shutdown is asserted.
slow-start
circuit.
Thermal
shutdown
provides
When VIN = UVLO threshold, SS/ENA = enable
protection when an overload condition is sustained for
threshold, and VSENSE > 90% of Vref, the open drain
several milliseconds. With a persistent fault condition,
output of the PWRGD pin is high. A hysteresis
the device cycles continuously; starting up by control
voltage equal to 3% of Vref and a 35-s falling edge
of the soft-start circuit, heating up due to the fault,
deglitch circuit prevent tripping of the power good
and then shutting down upon reaching the thermal
comparator due to high frequency noise.
shutdown point.
Copyright 2008, Texas Instruments Incorporated
15
Product Folder Link(s): TPS54310-EP
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS54310PWP 功能描述:直流/直流開關(guān)調(diào)節(jié)器 3A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54310PWP 制造商:Texas Instruments 功能描述:BUCK PWM REG FET 3A SMD 54310
TPS54310PWPG4 功能描述:直流/直流開關(guān)調(diào)節(jié)器 3A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54310PWP-P 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:
TPS54310PWPR 功能描述:直流/直流開關(guān)調(diào)節(jié)器 3A Sync Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
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