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| Part Number | IS31FL3740-ZLS4-TR | IS31FL3740-QFLS4-TR | IS31FL3740-QFSL4-TR |
| Manufacturer | Lumissil Microsystems | Lumissil Microsystems | Lumissil Microsystems |
| Series | - | - | - |
| Package/Case | 20-TSSOP (0.173", 4.40mm Width) Exposed Pad | 20-WQFN Exposed Pad | 20-WQFN Exposed Pad |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) |
| Product Status | Not For New Designs | Not For New Designs | Active |
| Type | Linear | Linear | Linear |
| Topology | - | Constant Current | - |
| Internal Switch(s) | No | Yes | No |
| Number of Outputs | 4 | 4 | 4 |
| Voltage - Supply (Min) | 2.7V | 2.7V | 2.7V |
| Voltage - Supply (Max) | 5.5V | 5.5V | 5.5V |
| Voltage - Output | - | - | - |
| Current - Output / Channel | 84mA | 84mA | 84mA |
| Frequency | 1MHz | - | 1MHz |
| Dimming | PWM | PWM | PWM |
| Applications | General Purpose | LED Lighting | General Purpose |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C (TA) | -40°C ~ 125°C |
| Grade | - | - | - |
| Qualification | - | - | - |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Supplier Device Package | 20-eTSSOP | 20-QFN (5x5) | 20-QFN (5x5) |
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