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| Part Number | ISL9221IRZ | ISL9221IRZ-T |
| Manufacturer | Renesas Electronics Corporation | Renesas Electronics Corporation |
| Series | - | - |
| Package/Case | 12-VFDFN Exposed Pad | 12-VFDFN Exposed Pad |
| Packaging | Tube | Tape & Reel (TR) |
| Product Status | Obsolete | Obsolete |
| Battery Chemistry | Lithium Ion/Polymer | Lithium Ion/Polymer |
| Number of Cells | 1 | 1 |
| Current - Charging | Constant - Programmable | Constant - Programmable |
| Programmable Features | Current | Current |
| Fault Protection | Over Voltage, Reverse Current | Over Voltage, Reverse Current |
| Charge Current - Max | 1.2A | 1.2A |
| Battery Pack Voltage | 4.2V | 4.2V |
| Voltage - Supply (Max) | 6.7V | 6.7V |
| Interface | USB | USB |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Grade | - | - |
| Qualification | - | - |
| Mounting Type | Surface Mount | Surface Mount |
| Supplier Device Package | 12-DFN (4x3) | 12-DFN (4x3) |
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