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| Part Number | ISL6551IRZ | ISL6558IRZ | ISL6551ARZ | ISL6551IBZ | ISL6551IR |
|---|---|---|---|---|---|
| Manufacturer | Renesas Electronics America Inc | Renesas Electronics America Inc | Renesas Electronics America Inc | Intersil | Intersil |
| Product Status | Obsolete | Active | Obsolete | Obsolete | Obsolete |
| Output Type | Transistor Driver | PWM Signal | Transistor Driver | Transistor Driver | Transistor Driver |
| Function | Step-Up/Step-Down | Step-Down | Step-Up/Step-Down | Step-Up/Step-Down | Step-Up/Step-Down |
| Output Configuration | Positive, Isolation Capable | Positive | Positive, Isolation Capable | Positive, Isolation Capable | Positive, Isolation Capable |
| Topology | Full-Bridge | Buck | Full-Bridge | Full-Bridge | Full-Bridge |
| Number of Outputs | 1 | 4 | 1 | 1 | 1 |
| Output Phases | 1 | 4 | 1 | 1 | 1 |
| Voltage - Supply (Vcc/Vdd) | 10.8V ~ 13.2V | 4.75V ~ 5.25V | 10.8V ~ 13.2V | 10.8V ~ 13.2V | 10.8V ~ 13.2V |
| Frequency - Switching | 50kHz ~ 500kHz | 80kHz ~ 1.5MHz | 50kHz ~ 500kHz | 50kHz ~ 500kHz | 50kHz ~ 500kHz |
| Duty Cycle (Max) | 50% | 75% | 50% | 50% | 50% |
| Synchronous Rectifier | Yes | - | Yes | Yes | Yes |
| Clock Sync | No | No | No | No | No |
| Serial Interfaces | - | - | - | - | - |
| Control Features | Current Limit, Dead Time Control, Enable, Soft Start | Enable, Frequency Control, Power Good | Current Limit, Dead Time Control, Enable, Soft Start | Current Limit, Dead Time Control, Enable, Soft Start | Current Limit, Dead Time Control, Enable, Soft Start |
| Operating Temperature | 0°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 105°C (TA) | 0°C ~ 85°C (TA) | 0°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 28-VQFN Exposed Pad | 20-VQFN Exposed Pad | 28-VQFN Exposed Pad | 28-SOIC (0.295", 7.50mm Width) | 28-VQFN Exposed Pad |
| Supplier Device Package | 28-QFN (6x6) | 20-QFN (5x5) | 28-QFN (6x6) | 28-SOIC | 28-QFN (6x6) |
