參數(shù)資料
型號: TPS65014RGZ
廠商: Texas Instruments, Inc.
英文描述: POWER AND BATTERY MANAGEMENT IC FOR LI-ION POWERED SYSTEMS
中文描述: 電源和電池管理集成電路鋰離子供電系統(tǒng)
文件頁數(shù): 25/53頁
文件大?。?/td> 1021K
代理商: TPS65014RGZ
www.ti.com
UNDERVOLTAGE LOCKOUT
The undervoltage lockout circuit for the four regulators on TPS65014 prevents the device from malfunctioning at
low input voltages and from excessive discharge of the battery. Basically, it prevents the converter from turning
on the power switch or rectifier FET under undefined conditions. The undervoltage threshold voltage is set by
default to 2.75 V. After power up, the threshold voltage can be reprogrammed through the serial interface. The
undervoltage lockout comparator compares the voltage on the VCC pin with the UVLO threshold. When the VCC
voltage drops below this threshold, the TPS65014 sets the PWRFAIL pin low and after a time t
(UVLO)
disables the
voltage regulators in the sequence defined by PS_SEQ. The same procedure is followed when the TPS65014
detects that its junction temperature has exceeded the overtemperature threshold, typically 160
°
C, with a delay
t
(overtemp)
. The TPS65014 automatically restarts when the UVLO (or overtemperature) condition is no longer
present.
TPS65014
SLVS551–DECEMBER 2004
The battery charger circuit has a separate UVLO circuit with a threshold of typically 2.5 V, which is compared
with the voltage on AC and USB supply pins.
25
相關(guān)PDF資料
PDF描述
TPS65150RGE Low Input Voltage, Compact LCD Bias IC With VCOM Buffer
TPS6734(中文) Fixed 12-V 120-MA Boost-Converter Supply(固定12V,120mA升壓變換電源)
TPS6735(中文) Fixed Negative 5-V 200-MA Inverting DC/DC Converter(固定-5V輸出反相DC-DC電壓變換器)
TPS7201Q(中文) Low-Dropout Voltage Regulators(微功耗,低壓差PMOS穩(wěn)壓器,輸出電壓可調(diào),工作溫度-55~150℃)
TPS7233Q(中文) Low-Dropout Voltage Regulators(微功耗,低壓差PMOS穩(wěn)壓器,工作溫度-55~150℃)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS65014RGZR 功能描述:電池管理 Li-Ion Powered Systems RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
TPS65014RGZRG4 功能描述:電池管理 Li-Ion Powered Systems RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
TPS65014RGZT 功能描述:電池管理 Li-Ion Powered Systems RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
TPS65014RGZT 制造商:Texas Instruments 功能描述:POWER M 2.5~6V FOR LI ION P 48QFN 制造商:Texas Instruments 功能描述:POWER M, 2.5~6V, FOR LI ION P, 48QFN
TPS65014RGZTG4 功能描述:電池管理 Li-Ion Powered Systems RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel