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參數(shù)資料
| 型號： | TPS65162RGZR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 4.2 A SWITCHING REGULATOR, 900 kHz SWITCHING FREQ-MAX, PQCC48 |
| 封裝： | 7 X 7 MM, PLASTIC, VQFN-48 |
| 文件頁數(shù)： | 20/36頁 |
| 文件大?。?/td> | 1034K |
| 代理商： | TPS65162RGZR |
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OPERATIONAL AMPLIFIER 1 AND 2
P
O
S
2
O
U
T
2
N
E
G
2
P
O
S
1
O
U
T
1
N
E
G
1
2
AVIN
3.3R
10nF
Seriesresistorfordrivingcapacitiveloads
Properterminationwhennotinuse
Operational Amplifier Termination
PCB LAYOUT DESIGN GUIDELINES
www.ti.com ............................................................................................................................................................... SLVS771B – MAY 2007 – REVISED JUNE 2008
The TPS65162 has two integrated operational amplifiers. The operational amplifiers can be used as a
gamma-correction buffer or as a VCOM buffer.
Figure 27. Operational Amplifier Block TPS65162
The power supply pin for the opamps is the AVIN pin connected to the input of the isolation switch of the boost
converter. To achieve good performance and minimize the output noise, a 1-
F bypass capacitor is required
directly from the AVIN pin to ground. The opamps are not designed to drive capacitive loads, therefore it is not
recommended to connect a capacitor directly to the output of the opamps. If capacitive loads are driven, use a
series resistor at the output to provide stable operation. With a 3.3-
series resistor, a capacitive load of 10 nF
can be driven, which is usually sufficient for typical LCD applications.
For some applications, not all of the amplifiers are used. To minimize device quiescent current the terminals
should be terminated. The negative terminal is connected to the output of the operational amplifier and positive
terminal is connected to GND and the output is left open. This termination minimizes device quiescent current
and maintains correct functionality of the device.
1. Place the power components outlined in bold first on the PCB.
2. Rout the traces outlined in bold with wide PCB traces.
3. Place a 1-
F bypass capacitor directly from the SUP pin to GND and from AVIN to GND.
Copyright 2007–2008, Texas Instruments Incorporated
27
Product Folder Link(s): TPS65162
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| TPS65162RGZRG4 | 功能描述:LCD 驅(qū)動器 12V/2.8A(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 |
| TPS65163RGZR | 功能描述:其他電源管理 LCD Bias with Int 9Ch Level Shifter 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 |
| TPS65163RGZT | 功能描述:其他電源管理 LCD Bias with Int 9Ch Level Shifter 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 |
| TPS65165EVM-233 | 功能描述:電源管理IC開發(fā)工具 TPS65165 Evaluation Module 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 |
| TPS65165RSBR | 功能描述:LCD Gamma緩沖器 Compact LCD Bias IC RoHS:否 制造商:Maxim Integrated 輸入補(bǔ)償電壓: 轉(zhuǎn)換速度: 電源電壓-最大:20 V 電源電壓-最小:9 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-38 封裝:Tube |
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