component
UC2844AN
Public Made by Adomby adom
Texas Instruments AC-DC Controllers And Regulators, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownUC2844AN
Texas Instruments · AC-DC Controllers And Regulators · DIP-8
UC2844AN from Texas Instruments, in a DIP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | COMP | output | Low-impedance 1MHz internal error amplifier output (open-loop gain AVOL 80dB), also feeding the peak current limit/PWM comparator; it can sink a maximum of 6mA and is not internally current-limited. |
| 2 | FB | input | Error amplifier input used to close the power converter voltage feedback loop and set its stability. |
| 3 | ISENSE | input | Input to the peak current limit / PWM comparator, where the maximum peak current sense signal is internally clamped to 1V. |
| 4 | RT/CT | input | Internal oscillator timing input programmed with external timing resistor RT and timing capacitor CT; TI recommends CT of 470pF to 4.7nF and RT of 5kΩ to 100kΩ. |
| 5 | GND | power_in | Controller signal ground. |
| 6 | OUTPUT | output | 1A totem-pole gate driver output that can source and sink up to 1A, and a gate driver resistor must be used to limit the gate drive current. |
| 7 | VCC | power_in | Gate driver bias supply input (absolute maximum 30V, recommended minimum 11V) that requires a bias capacitor at least 10 times the gate capacitance of the main switching FET. |
| 8 | VREF | power_out | PWM controller reference voltage output that must supply no more than 10mA in normal operation, is short-circuit protected at about 100mA, and needs a 1µF high-frequency bypass capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | DIP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
UC2844AN - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: DIP-8 (KiCad packages3D, STEP)
- 3D model files:
uc2844an-etched.step/uc2844an-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);uc2844an.step/uc2844an.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (54 pp, sha256
1f5ad8805f414728, retrieved 2026-10-08, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).