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參數(shù)資料
| 型號： | TPS65166RHAR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQCC40 |
| 封裝： | 6 X 6 MM, GREEN, PLASTIC, M0-220VJJD-2, QFN-40 |
| 文件頁數(shù)： | 15/45頁 |
| 文件大?。?/td> | 3690K |
| 代理商： | TPS65166RHAR |
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Rectifier Diode Selection (Boost Converter)
Output Capacitor Selection (Boost Converter)
Setting the Output Voltage (Boost Converter)
s
FB1
R1
V
= V
1+
= 1.24 V
1+
R2
÷
÷
è
è
(12)
F B1
V
1.24 V
R2 =
=
12 k
100
A
100
A
W
m
(13)
s
F B1
V
R1 = R2
1
= R2
1
V
1.24 V
-
-
÷
÷
è
è
(14)
SLVS976 – SEPTEMBER 2009.......................................................................................................................................................................................... www.ti.com
Table 3. Inductor Selection Boost Converter (continued)
INDUCTOR VALUE
COMPONENT SUPLIER
SIZE (L×W×H mm)
Isat/DCR
10
H
Sumida CDRH104R
10.3 × 10.5 × 4.0
4.4 A/26 m
10
H
Sumida CDRH8D43
8.3 × 8.3 × 4.5
4 A/29 m
To achieve high efficiency a Schottky diode should be used. The reverse voltage rating should be higher than the
maximum output voltage of the boost converter. The average rectified forward current Iavg, the Schottky diode
needs to be rated for, is equal to the output current Iout.
Iavg = Iout
(10)
Usually a Schottky diode with 2A maximum average rectified forward current rating is sufficient for most
applications. The Schottky rectifier can be selected with lower forward current capability depending on the output
current Iout, but has to be able to dissipate the power. The dissipated power is calculated according to the the
following equation:
PD = Iavg × Vforward
(11)
Table 4. Rectifier Diode Selection (Boost Converter)
Vr/Iavg
Vforward
RθJA
SIZE
COMPONENT SUPPLIER
20V/2A
0.44V at 2A
25°C/W
SMB
B220, DIODES Incorporated
20V/2A
0.44V at 2A
75°C/W
SMB
SL22, Vishay Semiconductor
20V/3A
0.44V at 3A
46°C/W
SMC
MBRS320, International Rectifier
For the best output voltage filtering, low ESR ceramic output capacitors are recommended. Three 22
F or six
10
F 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 5 for output capacitor
selection.
Table 5. Output Capacitor Selection (Boost Converter)
CAPACITOR
COMPONENT SUPPLIER
22
F/25V
Murata, GRM32ER61E226KE15
10
F/25V
Murata, GRM31CR61E106KA12
10
F/50V
Taiyo Yuden, UMK325BJ106MM
The output voltage is set by an external resistor divider. A minimum current of 100
A through the feedback
divider provides good accuracy and noise covering. The resistors are calculated as:
22
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s): TPS65166
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel |
| TPS65167RHARG4 | 功能描述:LCD 驅(qū)動器 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 |
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