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| Part Number | TL494CDG | TL494CDX | TL494CDR | TL494CNG | TL594CDG | TL494CDG4 | TL494BDG | TL494CD | TL494CDB |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | onsemi | Fairchild Semiconductor | Texas Instruments | onsemi | onsemi | Texas Instruments | onsemi | Texas Instruments | Texas Instruments |
| Product Status | Obsolete | Active | Active | Obsolete | Obsolete | Discontinued at Digi-Key | Obsolete | Active | Active |
| Output Type | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | - |
| Function | Step-Down, Step-Up/Step-Down | Step-Down, Step-Up/Step-Down | Step-Up, Step-Down, Step-Up/Step-Down | Step-Down, Step-Up/Step-Down | Step-Down, Step-Up/Step-Down | Step-Up, Step-Down, Step-Up/Step-Down | Step-Down, Step-Up/Step-Down | Step-Up, Step-Down, Step-Up/Step-Down | - |
| Output Configuration | Positive | Positive | Positive | Positive | Positive | Positive | Positive | Positive | - |
| Topology | Buck, Push-Pull | Buck, Push-Pull | Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | Buck, Push-Pull | Buck, Push-Pull | Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | Buck, Push-Pull | Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | - |
| Number of Outputs | 2 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | - |
| Output Phases | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - |
| Voltage - Supply (Vcc/Vdd) | 7V ~ 40V | 7V ~ 40V | 7V ~ 40V | 7V ~ 40V | 7V ~ 40V | 7V ~ 40V | 7V ~ 40V | 7V ~ 40V | - |
| Frequency - Switching | 200kHz | 40kHz | 1kHz ~ 300kHz | 200kHz | 300kHz | 1kHz ~ 300kHz | 200kHz | 1kHz ~ 300kHz | - |
| Duty Cycle (Max) | 48% | 48% | 45% | 48% | 96% | 45% | 48% | 45% | - |
| Synchronous Rectifier | Yes | Yes | No | Yes | Yes | No | Yes | No | - |
| Clock Sync | No | No | No | No | No | No | No | No | - |
| Serial Interfaces | - | - | - | - | - | - | - | - | - |
| Control Features | Dead Time Control, Frequency Control | Dead Time Control, Frequency Control | Dead Time Control, Frequency Control | Dead Time Control, Frequency Control | Dead Time Control, Frequency Control | Dead Time Control, Frequency Control | Dead Time Control, Frequency Control | Dead Time Control, Frequency Control | - |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | -40°C ~ 85°C (TA) | 0°C ~ 70°C (TA) | -40°C ~ 125°C (TJ) | 0°C ~ 70°C (TA) | - |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Through Hole | Surface Mount | Surface Mount | Surface Mount | Surface Mount | - |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-DIP (0.300", 7.62mm) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | - |
| Supplier Device Package | 16-SOIC | 16-SOIC | 16-SOIC | 16-PDIP | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | - |
