參數(shù)資料
型號: TLV431ACDBVTG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.24 V, PDSO5
封裝: GREEN, PLASTIC, SOT-23, 5 PIN
文件頁數(shù): 10/41頁
文件大?。?/td> 1102K
代理商: TLV431ACDBVTG4
TLV431, TLV431A, TLV431B
LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATOR
SLVS139T JULY 1996 REVISED JUNE 2007
18
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
~
P
+
P
VCC
VFB
Current
Sense
Gate Drive
GND
Controller
P
PP
TLV431
or
TLV431A
or
TLV431B
VO
3.3 V
VI
120 V
Figure 18. Flyback With Isolation Using TLV431, TLV431A, or TLV431B
as Voltage Reference and Error Amplifier
Figure 18 shows the TLV431, TLV431A, or TLV431B used in a 3.3-V isolated flyback supply. Output voltage VO
can be as low as reference voltage VREF (1.24 V ± 1%). The output of the regulator, plus the forward voltage
drop of the optocoupler LED (1.24 + 1.4 = 2.64 V), determine the minimum voltage that can be regulated in an
isolated supply configuration. Regulated voltage as low as 2.7 Vdc is possible in the topology shown in
Figure 18.
相關(guān)PDF資料
PDF描述
TLV431IDBVR 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.24 V, PDSO5
TLV431BCDBZR 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.24 V, PDSO3
TLV431BIDBZTG4 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.24 V, PDSO3
TLV431CDBV 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.24 V, PDSO5
TLV431AQPK 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.24 V, PSSO3
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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TLV431ACDBZR 制造商:Texas Instruments 功能描述:IC ADJ SHUNT REG 1.24V ((NW)) 制造商:Texas Instruments 功能描述:IC, ADJ SHUNT REG, 1.24V, 1%, 3-SOT-23
TLV431ACDBZRG4 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Lo Vtg Adj Precision Shunt Regulator RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)(典型值):100 PPM / C 串聯(lián) VREF - 輸入電壓(最大值): 串聯(lián) VREF - 輸入電壓(最小值): 分流電流(最大值):60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel
TLV431ACDBZTG4 制造商:Texas Instruments 功能描述:
TLV431ACLP 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Lo Vtg Adj Precision Shunt Regulator RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)(典型值):100 PPM / C 串聯(lián) VREF - 輸入電壓(最大值): 串聯(lián) VREF - 輸入電壓(最小值): 分流電流(最大值):60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel