| This is a introduction for flashlight chip LM3644 |
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| [Scope] |
| - Two channel for two LEDs |
| - Two silicon revision |
| * LM3644 |
| * LM3644TT (Douple torch current and flash timeout) |
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| [Hardware Interface] |
| - I2C |
| * For general control |
| * Slave address 0x63 |
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| - GPIO |
| * For enable/disable chip |
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| [Limit] |
| - Channel couple: |
| * Torch/Strobe |
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| - Channel decouple: |
| * Enable/Disable |
| * Brightness level |
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| - Torch Mode |
| * Step current: 1.4 mA (2.8 mA for LM3644TT) |
| * Min currnet: 0.977 mA (1.954 mA for LM3644TT) |
| * Max current: 179 mA (360 mA for LM3644TT) |
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| - Strobe Mode |
| * Step current: 11.725 mA |
| * Min currnet: 10.9 mA |
| * Max current: 1500 mA |
| * Max current for two channel: 1500 mA |
| * Min protected timeout: 10 ms (40 ms for LM3644TT) |
| * Max protected timeout: 400 ms (1600 ms for LM3644TT) |
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