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| PartNumber | TL494CNSR | TL494CNS | TL494CNSRG4 |
| Description | Switching Controllers PWM Controller | Switching Controllers Pulse-Width-Mod Control Circuit | Switching Controllers Control Circuit |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Switching Controllers | Switching Controllers | Switching Controllers |
| RoHS | Y | Y | Y |
| Topology | Boost, Buck, Flyback, Forward, Push-Pull | Boost, Flyback, Forward | Boost, Buck, Flyback, Forward, Push-Pull |
| Number of Outputs | 2 Output | 1 Output | 2 Output |
| Switching Frequency | 300 kHz | 500 kHz | 300 kHz |
| Duty Cycle Max | 45 % | 100 % | 45 % |
| Output Voltage | 40 V | 0 V to 30 V | 40 V |
| Output Current | 200 mA | 200 mA | 200 mA |
| Minimum Operating Temperature | - 40 C | 0 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 70 C | + 85 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SO-16 | SOIC-14 | SO-16 |
| Packaging | Reel | Tube | Reel |
| Height | 1.95 mm | - | 1.95 mm |
| Length | 10.3 mm | - | 10.3 mm |
| Operating Temperature Range | - 40 C to + 85 C | 0 C to + 70 C | - 40 C to + 85 C |
| Series | TL494 | TL3843B | TL494 |
| Type | Voltage Mode PWM Controllers | Current Mode PWM Controllers | Voltage Mode PWM Controllers |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Fall Time | 40 ns | 50 ns | 40 ns |
| Product Type | Switching Controllers | Switching Controllers | Switching Controllers |
| Rise Time | 100 ns | 50 ns | 100 ns |
| Factory Pack Quantity | 2000 | 50 | 2000 |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | PMIC - Power Management ICs |
| Unit Weight | 0.007079 oz | 0.004564 oz | 0.007079 oz |