Product Overview
STMicroelectronics TDA8145 East/West Correction Circuit, POWERDIP8
Condition
New. The photo shows a representative unit from our stock. Same or next business day shipping from our Idaho warehouse. Honest pricing, no nonsense. Online since 1999. We are here for our customers, with a no-hassle satisfaction guarantee.
Product Overview
The black body reads TDA8145 on the first line and carries the ST logo beside a trailing date code 99125, with a moulded notch and dimple at the pin-1 end. The package is POWERDIP8, an 8-pin plastic DIP with a heat-spreading lead frame rather than a bolt-down tab. The TDA8145 is the east/west correction circuit for square CRT tubes, generating the parabola and driving a diode modulator; 19 pieces are on the shelf, sold each.
Key Features
- East/west, meaning pincushion, correction for square picture tubes, per ST's published TDA8145 Rev 2 data
- Supply 17 V to 30 V operating with an absolute maximum of 35 V, per ST; the bare 30 V in the old title was the top of the operating range, not the maximum
- PWM control with a class D output stage; the final stage sources and sinks up to 400 mA, per ST
- Pin 5 sink current 100 uA, dissipation 500 mW at 50 C, per ST
- Operating 0 C to 70 C, storage and junction -25 C to 150 C, per ST
- POWERDIP8, an 8-pin plastic DIP with a heat-spreading lead frame; ST's ordering table lists one grade and one package, so there is no sibling suffix to confuse
- Body marking read from these photos: TDA8145, ST logo, 99125
Verify against STMicroelectronics' published TDA8145 data before designing in.
Applications
- East/west geometry correction stages in square-tube television and monitor chassis
- Driving a diode modulator from a generated parabola waveform
- Repair of legacy CRT deflection boards
- Bench study of class D correction stages
Frequently Asked Questions
How many should I order?
Order one for the chassis on the bench and a second if you would rather not order twice; 19 are on the shelf here, sold each. Shipping is $8 flat rate and free on orders over $28, so small parts like this ship smartest as part of a larger order.
Does this part have a mounting tab for a heatsink?
No. POWERDIP8 handles its heat through a spreading lead frame inside a standard 8-pin plastic DIP outline, so there is no tab to bolt down and nothing protrudes from the body in these photos.
Built for a shape of television nobody makes any more, and still the right part when one lands on the bench.
