Specs side by side
2 parts compared · 20 differing specs across 20 total parameters.
| Parameter | ||
|---|---|---|
| Operating temperature | 0°C ~ 70°C (TA) | - |
| Voltage - Supply (vcc (vdd)) | 7V ~ 42V | - |
| Clock Sync | No | - |
| Frequency - Switching | 1kHz ~ 300kHz | - |
| Case | 16-DIP (0.300\", 7.62mm) | DIP-16 / SOIC-16 |
| Package | Tube | - |
| Component Category | - | PWM Controllers (Push-Pull / ATX) |
| Control Features | Dead Time Control | - |
| Duty Cycle | 45% | - |
| Function | Step-Down | - |
| I/o Channels | 1 | - |
| Market Reality | - | The TL494 is the PWM heart of classic ATX supplies, inverters, welders and battery chargers - a 16-pin voltage-mode controller whose real-world identity is a family: KA7500B, MB3759 and IR3M02 are pin-for-pin clones, and repair benches swap them daily. Two traps live here. The first is quality drift inside the clone family - the cheaper suffix revisions (7500C and similar) have documented poorer oscillator and drive behavior, and a supply that squeals under load after a cheap swap is the classic symptom. The second is the SG3525, a functionally similar controller that is not pin-compatible and keeps getting treated as one. |
| Mounting | Through Hole | - |
| Output Configuration | Positive | - |
| Output Phases | 1 | - |
| Output Type | Transistor Driver | - |
| Role In Circuit | - | Original Reference Part |
| Sourcing Status | - | Active Shenzhen Spot Sourcing (24–48h) |
| Synchronous Rectifier | Yes | - |
| Topology | Buck | - |