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| Part Number | TL494CN | TL494IN | TL594CN | TL494CNS | TL494CNG | TL494CD |
|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | onsemi | Texas Instruments |
| Product Status | Active | Active | Active | Active | Obsolete | Active |
| Output Type | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver |
| Function | Step-Up, Step-Down, Step-Up/Step-Down | Step-Up, Step-Down, Step-Up/Step-Down | Step-Up, 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 |
| Topology | Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, 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 | 2 | 2 | 2 | 2 | 2 |
| Output Phases | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | 7V ~ 40V | 7V ~ 40V | 7V ~ 40V | 7V ~ 40V | 7V ~ 40V | 7V ~ 40V |
| Frequency - Switching | 1kHz ~ 300kHz | 1kHz ~ 300kHz | 1kHz ~ 300kHz | 1kHz ~ 300kHz | 200kHz | 1kHz ~ 300kHz |
| Duty Cycle (Max) | 45% | 45% | 97% | 45% | 48% | 45% |
| Synchronous Rectifier | No | No | No | No | Yes | No |
| Clock Sync | 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 |
| Operating Temperature | 0°C ~ 70°C (TA) | -40°C ~ 85°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) |
| Mounting Type | Through Hole | Through Hole | Through Hole | Surface Mount | Through Hole | Surface Mount |
| Package / Case | 16-DIP (0.300", 7.62mm) | 16-DIP (0.300", 7.62mm) | 16-DIP (0.300", 7.62mm) | 16-SOIC (0.209", 5.30mm Width) | 16-DIP (0.300", 7.62mm) | 16-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 16-PDIP | 16-PDIP | 16-PDIP | 16-SO | 16-PDIP | 16-SOIC |
