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| Part Number | ISL6840IB | ISL6843IB | ISL6845IB | ISL6841IB | ISL6840IU | ISL6840IBZ | ISL6740IB |
|---|---|---|---|---|---|---|---|
| Manufacturer | Intersil | Intersil | Intersil | Intersil | Intersil | Intersil | Intersil |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Output Type | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver | Transistor Driver |
| Function | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up/Step-Down |
| Output Configuration | Positive, Isolation Capable | Positive, Isolation Capable | Positive, Isolation Capable | Positive, Isolation Capable | Positive, Isolation Capable | Positive, Isolation Capable | Positive, Isolation Capable |
| Topology | Boost, Flyback | Boost, Flyback | Boost, Flyback | Boost, Flyback | Boost, Flyback | Boost, Flyback | Full-Bridge, Half-Bridge, Push-Pull |
| Number of Outputs | 1 | 1 | 1 | 1 | 1 | 1 | 2 |
| Output Phases | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | 7.5V ~ 14V | 9V ~ 16V | 9V ~ 16V | 7.5V ~ 14V | 7.5V ~ 14V | 7.5V ~ 14V | 9V ~ 16V |
| Frequency - Switching | Up to 2MHz | Up to 2MHz | Up to 2MHz | Up to 2MHz | Up to 2MHz | Up to 2MHz | Up to 1MHz |
| Duty Cycle (Max) | 96% | 96% | 48% | 48% | 96% | 96% | 83% |
| Synchronous Rectifier | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Clock Sync | No | No | No | No | No | No | Yes |
| Serial Interfaces | - | - | - | - | - | - | - |
| Control Features | Current Limit, Frequency Control | Current Limit, Frequency Control | Current Limit, Frequency Control | Current Limit, Frequency Control | Current Limit, Frequency Control | Current Limit, Frequency Control | Enable, Frequency Control, Soft Start |
| Operating Temperature | -40°C ~ 105°C (TA) | -40°C ~ 105°C (TA) | -40°C ~ 105°C (TA) | -40°C ~ 105°C (TA) | -40°C ~ 105°C (TA) | -40°C ~ 105°C (TA) | -40°C ~ 105°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-MSOP | 8-SOIC | 16-SOIC |
