LM317HV
- Up to 60 V Input to Output Differential
- 1.5-A Output Current
- Line Regulation 0.01%/V (Typical)
- Load Regulation 0.1% (Typical)
- 80-dB Ripple Rejection (Typical)
- Internal Short-Circuit Current Limiting Protection
- Thermal Overload Protection
- –55 to 150°C Operating Temperature Range
(LM117HV) - 0 to 125°C Operating Temperature Range
(LM317HV)
The LMx17HV is an adjustable 3-terminal positive voltage regulator capable of supplying 1.5 A or more currents over a 1.25-V to 57-V output voltage range. It requires only two external resistors to set the output voltage. The LMx17HV is packaged in standard transistor packages that are easily mounted and handled.
The LMx17HV offers overload protection like current limit, thermal overload protection and safe area protection, which make the device blowout proof. The overload protection circuitry remains fully functional even if the adjustment terminal is disconnected.
Typically, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors, in which case an input bypass is needed. An optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios which are difficult to achieve with standard 3-terminal regulators.
Since the regulator is floating and sees only the input-to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input to output differential is not exceeded, or in other words, do not short the output to ground.
By connecting a fixed resistor between the adjustment and output, the LMx17HV can also be used as a precision current regulator. Supplies with electronic shutdown can be achieved by clamping the adjustment terminal to ground, which programs the output to 1.25 V where most loads draw little current.
技術資料
| 上位の文書 | タイプ | タイトル | フォーマットオプション | 最新の英語版をダウンロード | 日付 | |
|---|---|---|---|---|---|---|
| * | データシート | LMx17HV High Voltage Three-Terminal Adjustable Regulator With Overload Protection データシート (Rev. D) | PDF | HTML | 2015/09/30 | ||
| アプリケーション・ノート | A Topical Index of TI LDO Application Notes (Rev. F) | 2019/06/27 | ||||
| アプリケーション・ノート | AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) | 2013/05/06 | ||||
| アプリケーション・ノート | AN-1028 Maximum Power Enhancement Techniques for Power Packages (Rev. B) | 2013/05/06 | ||||
| アプリケーション・ノート | AN-103 LM340 Series Three Terminal Positive Regulators (Rev. A) | 2013/05/06 | ||||
| アプリケーション・ノート | Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A) | 2013/05/05 | ||||
| アプリケーション・ノート | Packaging Limits Range of Linear Regulators | 2010/05/08 | ||||
| アプリケーション・ノート | Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A) | 2008/06/04 | ||||
| アプリケーション・ノート | Adjustable 3-Terminal Regulator for Low-Cost Battery Charging Systems | 2002/10/03 | ||||
| アプリケーション・ノート | Understanding the Terms and Definitions of LDO Voltage Regulators | 1999/10/21 |
設計と開発
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| パッケージ | ピン数 | CAD シンボル、フットプリント、および 3D モデル |
|---|---|---|
| TO-220 (NDE) | 3 | Ultra Librarian |
購入と品質
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