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| PartNumber | IS31BL3556-ZLS4 | IS31BL3555-ZLS4-TR | IS31BL3555-ZLS4 |
| Description | LED Lighting Drivers Boost type LED driver with 4-Channel, 120mA/Channel, e-TSSOP20(6.5mmx6.4mm) | LED Lighting Drivers Boost type LED driver with 2-Channel, 200mA/Channel, e-TSSOP16(5.0mmx6.4mm) | IC LED DVR BOOST 2CH 16TSSOP |
| Manufacturer | ISSI | ISSI | - |
| Product Category | LED Lighting Drivers | LED Lighting Drivers | - |
| RoHS | Y | Y | - |
| Number of Channels | 48 Channel | 2 Channel | - |
| Output Current | 120 mA | 200 mA | - |
| Input Voltage | 4.75 V to 40 V | 4.75 V to 40 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 125 C | + 125 C | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | TSSOP-20 | TSSOP-16 | - |
| Series | IS31BL3556 | IS31BL3555 | - |
| Product | LED Drivers | LED Drivers | - |
| Type | White LED Driver | LED Backlight Driver | - |
| Brand | ISSI | ISSI | - |
| Topology | Boost | Boost | - |
| Product Type | LED Lighting Drivers | LED Lighting Drivers | - |
| Factory Pack Quantity | 70 | 2500 | - |
| Subcategory | Driver ICs | Driver ICs | - |
| Operating Frequency | - | 1 MHz | - |
| Supply Current Max | - | 10 mA | - |
| Packaging | - | Reel | - |