參數(shù)資料
型號(hào)： TPS65166RHAR
廠商： TEXAS INSTRUMENTS INC
元件分類： 模擬信號(hào)調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, PQCC40
封裝： 6 X 6 MM, GREEN, PLASTIC, M0-220VJJD-2, QFN-40
文件頁(yè)數(shù)： 18/45頁(yè)
文件大小： 3690K
代理商： TPS65166RHAR
Output Capacitor Selection (Buck Converter)
Setting the Output Voltage (Buck Converter)
logic
FB2
R5
V
= V
1+
= 1.24 V
1+
R6
÷
÷
è
è
(18)
FB2
V
1.24 V
R6 =
=
1.2 k
1mA
1 mA
W
(19)
logic
FB2
V
R5 = R6
1 = R6
1
V
1.24 V
-
-
÷
÷
÷
÷
è
è
(20)
Negative Buck-Boost Converter VOFFE, Temperature Compensation
-23V
-22V
-21V
-20V
-19V
-18V
-17V
-16V
-15V
-14V
-13V
-12V
-11V
-10V
-10C
0C
10C
20C
30C
40C
50C
6kW
6.5kW
7kW
7.5kW
5.5kW
5kW
Slopeofcurve
adjustedby
NTCandR18
V
setby
resistornetworkFB5
andSET
OFFE_max
V
setby
resistornetworkFB5
OFFE_min
NTC
R18
TS
R19
Vref3.3V
www.ti.com.......................................................................................................................................................................................... SLVS976 – SEPTEMBER 2009
For best output voltage filtering, low ESR ceramic output capacitors are recommended. Two 22
F or four 10F
ceramic output capacitors with sufficient voltage rating in parallel are adequate for most applications. Additional
capacitors can be added to improve the load transient regulation. See Table 8 for output capacitor selection.
Table 8. Output Capacitor Selection (Buck Converter)
CAPACITOR
COMPONENT SUPPLIER
22
F/6.3V
Murata, GRM31CR60J226KE19
10
F/6.3V
Murata, GRM21BR70J106KE76
47
F/6.3V
Murata, GRM32ER60J476ME20
10
F/6.3V
Taiyo Yuden, JWK212BJ106MD
The output voltage is set by an external resistor divider. R6 should be chosen in the range of 0.5k
to 4.7k. For
good noise covering and accuracy the lower feedback resistor R6 is selected to obtain at least a 250
A minimum
load current.
The non-synchronous constant off-time current mode buck-boost converter generates the negative VOFFE voltage
rail. This output rail is required to power the scan driver. The output voltage is temperature compensated and
fully adjustable from –22V to –5V. The external resistor divider on pins FB5 and SET allow programming high
and low voltage levels. The graph below shows the output voltage versus temperature in °C and series resistor
R19 (5k
to 7.5k). NTC (22k) and R18 (30k) define the slope of the curve, R19 allows selection of the
temperature point where temperature compensation begins and ends. The converter is compensated internally,
for further stabilization the feed-forward capacitor C22 can be chosen between 100pF and 2nF. Soft-start is also
realized with this capacitor. The larger the capacitor value the longer the soft-start time. The recommended C22
value is 1nF.
Figure 27. VOFFE Temperature Compensation
Copyright 2009, Texas Instruments Incorporated
25
Product Folder Link(s): TPS65166
相關(guān)PDF資料
PDF描述
TPS65270RGET DUAL SWITCHING CONTROLLER, 1400 kHz SWITCHING FREQ-MAX, PQCC24
TPS65562RGTTG4 3 A BATTERY CHARGE CONTROLLER, PQCC16
TPS65735RSNR SPECIALTY ANALOG CIRCUIT, PQCC32
TPS70702PWP DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH POWER UP SEQUENCING FOR SPLIT VOLTAGE DSP SYSTEMS
TPS70745PWP DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH POWER UP SEQUENCING FOR SPLIT VOLTAGE DSP SYSTEMS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS65167ARHAR 功能描述:其他電源管理 Compact LCD Bias Sply RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel
TPS65167ARHARG4 功能描述:其他電源管理 Compact LCD Bias Sply RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel
TPS65167EVM-277 功能描述:電源管理IC開發(fā)工具 TPS65167 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
TPS65167RHAR 功能描述:其他電源管理 Compact LCD Bias Supply RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel
TPS65167RHARG4 功能描述:LCD 驅(qū)動(dòng)器 12V/3.5A(I/O) 4-CH Multi-Converter RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時(shí)鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
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 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*