LM117HV
- 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.
技術文件
類型 | 標題 | 日期 | ||
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* | Data sheet | LMx17HV High Voltage Three-Terminal Adjustable Regulator With Overload Protection datasheet (Rev. D) | PDF | HTML | 2015年 9月 30日 |
Application note | A Topical Index of TI LDO Application Notes (Rev. F) | 2019年 6月 27日 | ||
Application note | AN-103 LM340 Series Three Terminal Positive Regulators (Rev. A) | 2013年 5月 6日 | ||
Application note | AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) | 2013年 5月 6日 | ||
Application note | Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A) | 2013年 5月 5日 | ||
Application note | Packaging Limits Range of Linear Regulators | 2010年 5月 8日 | ||
Application note | Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A) | 2008年 6月 4日 | ||
Application note | Understanding the Terms and Definitions of LDO Voltage Regulators | 1999年 10月 21日 |
設計與開發
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訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
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- MTBF/FIT 估算值
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- 資格摘要
- 進行中可靠性監測
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