LM723H DATASHEET PDF

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LMH/ Texas Instruments Linear Voltage Regulators LMH/ Voltage Regulator datasheet, inventory, & pricing. The LM/LMC is a voltage regulator designed prima- rily for series regulator applications. By itself, it will supply output currents up to mA; but external. The LM is a monolithic integrated programmable voltage regulator, assembled in. lead dual in-line plastic package. The circuit provides internal current.

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This page was last modified on 19 Aprilat Above formula gives this graph.

LMH datasheet, Pinout ,application circuits Voltage Regulator

My response below suggests a plug-in choice: A was used to regulate the HV output 15KV. Q2 is for short-circuit protection- it detects the voltage across R What went into the design of that portion, especially with the feedback transistor? I am familiar with the but don’t think I’ve ever actually used one so now I’m going to look into them as well as an interim PS would be nice The is ancient in the world of IC voltage regulators.

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Sorry for the barrage of questions, answer at your earliest convenience. The output of the ‘ is a pass transistor with the zener Vz pin 9 connected to ground, so that it pulls Vc pin 11 down in order to increase the output voltage.

Pin configuration Pin No. I’ve added DIP pin numbers as those match what you show.

I don’t see a “zener diode” in the schematic. That sort of thing.

I suspect you’ll find a collector-base short on Q4. I’d like to repair this but more than anything, I’d like to know what I’m doing rather than just plugging in components.

The zener 10,9 provides a stable voltage that the output can pull down to. If you wanted current limit the arrangement used was simple obvious and standard fare.

To those of you who have offered assistance thank you very kindly for your time. Spehro Pefhany k 4 Xatasheet terms seem generic and innocent enough, but have a special meaning within the context of voltage regulators.

LMH/ from Texas Instruments

Datassheet think that my pinout is correct used http: By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

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Retrieved from ” http: This page has been accessed 30, times. With 35V in you can get about 1. I’ll run a test on these today when I get out of the lab. It should be at least 2W rated and I’d use a 5W as they are about as cheap and much safer.

With booster transistors you can increase the LM’s useful output current range to several amps. The LM internal error amp has 6.

Sorry I can’t remember which pins. Q4 being a LM data sheet here.

National Semiconductor

Pin 6 provides a buffered reference voltage – the forerunner of a modern bandgap reference. With the voltage turned right down of course. This is a design from the dawn of solid state time that has much to teach.