Supertex Inc LR8N8
The Supertex LR8 is a high voltage, low output current, adjustable linear regulator. It has a wide operating input voltage range of 12V to 450V.| Part No. | LR8N8 |
|---|---|
| Datasheet | LR8N8 Download |
| Manufacturer |  Supertex Inc |
| Description | High Input Voltage Adjustable 3-Terminal Linear Regulator |
| Buy | Stock & Price |
FEATURES
❏ ❏ ❏ ❏ ❏ ❏ 12V to 450V input voltage range Adjustable 1.20V to 440V output regulation 5% output voltage tolerance Output current limiting 10µA typical ADJ current Internal junction temperature limitingGENERAL DESCRIPTION
The output voltage can be adjusted from 1.20V to 440V provided that the input voltage is at least 10V greater than the output voltage. The output voltage can be adjusted by means of two external resistors R1 and R2 as shown in the typical application circuits. The LR8 regulates the voltage difference between VOUT and ADJ pins to a nominal value of 1.20V. The 1.20V is amplified by the external resistor ratio R1 and R2. An internal constant bias current of typically 10µA is connected to the ADJ pin. This increases VOUT by a constant voltage of 10µA times R2. The LR8 has current limiting and temperature limiting. The output current limit is typically 15mA and the minimum temperature limit is 125°C. An output short circuit current will therefore be limited to 15mA.
