| CN5730 |
| Multi-function High Brightness LED Driver IC |
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| General Description： |
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| The CN5730 is a current regulation integrated circuit operating from an input voltage of 2.85V to 6V, the |
| constant output current can be set up to 1.5A with an external resistor. The CN5730 is ideal to be used to |
| drive LED. The on-chip power transistor and current sense block greatly reduce the external component count. |
| The chip also integrates the mode selection circuit,oscillator and state registers, which can control the |
| LED to operate in one of the following four modes:Off, High Brightness(HB), Low Brightness(LB) and Flashing. |
| The CN5730 adopts the temperature regulation instead of temperature protection function, the temperature |
| regulation can make the LED being turned on continuously in case of high ambient temperature or high voltage |
| drop. |
| The other features include the chip enable and button de-bounce functions. |
| CN5730 is available in thermally-enhanced 8-pin small outline package (SOP8). |
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| Applications： |
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Flashlight |
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LED headlights |
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High-brightness LED driver |
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Emergency lights and lighting |
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| Features： |
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Operating Voltage Range: 2.85V to 6V |
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Four Operating Modes: |
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Off, HB, LB and Flash |
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Off, HB, and LB |
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Off, HB, and Flash |
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On-chip Power Transistor |
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Low dropout voltage: 0.4V @ 1.5A |
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LED pin output current up to 1.5A |
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Output Current Accuracy: ± 5% |
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Chip Temperature Regulation |
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Operating Temperature Range:-40 ℃ to 85 ℃ |
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8-pin small outline package (SOP8) |
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Pb-free, rohs compliant and halogen free |
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