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SI1143 数据表(PDF) 6 Page - Silicon Laboratories |
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SI1143 数据表(HTML) 6 Page - Silicon Laboratories |
6 / 66 page Si1141/42/43 6 Preliminary Rev. 0.5 LED1, LED2, LED3 Active Current ILEDx VDD = 3.3 V, single drive VLEDn = 1 V, PS_LEDn = 0001 VLEDn = 1 V, PS_LEDn = 0010 VLEDn = 1 V, PS_LEDn = 0011 VLEDn = 1 V, PS_LEDn = 0100 VLEDn = 1 V, PS_LEDn = 0101 VLEDn = 1 V, PS_LEDn = 0110 VLEDn = 1 V, PS_LEDn = 0111 VLEDn = 1 V, PS_LEDn = 1000 VLEDn = 1 V, PS_LEDn = 1001 VLEDn = 1 V, PS_LEDn = 1010 VLEDn = 1 V, PS_LEDn = 1011 VLEDn = 1 V, PS_LEDn = 1100 VLEDn = 1 V, PS_LEDn = 1101 VLEDn = 1 V, PS_LEDn = 1110 VLEDn =1V, PS_LEDn =1111 — — — — — — — — — — — — — — — 5.6 11.2 22.4 45 67 90 112 135 157 180 202 224 269 314 359 TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD TBD mA Actively Measuring Time3 Single PS ALS VIS + ALS IR Two ALS plus three PS — — — 155 285 660 TBD TBD TBD µs µs µs PS Min Detectable Reflectance Input4 EMIN VDD =3.3 V = 850 nm —0.1 1 µW/ cm2 PS Max Detectable Reflectance Input EMAX VDD =3.3 V = 850 nm 25 — — mW/ cm2 ALS Range5 10m — 128k lx ALS Flicker Noise Error VDD =3.3 V — ±5 — % SCL, SDA, INT Output Low Voltage VOL I=4mA, VDD > 2.0 V I=4 mA, VDD < 2.0 V — — — — VDDx0.2 0.4 V V Table 3. Performance Characteristics1 (Continued) Parameter Symbol Conditions Min Typ Max Units Notes: 1. Unless specifically stated in "Conditions", electrical data assumes ambient light levels < 1 klx. 2. Proximity-detection performance may be degraded, especially when there is high optical crosstalk, if the LED supply and voltage drop allow the driver to saturate and current regulation is lost. 3. Represents the time during which the device is drawing a current equal to Iactive for power estimation purposes. Assumes default settings. 4. Applies to single 25.6 µs pulse measurement. By increasing irLED pulse width, 0.001 µW/cm2 under low light is possible. 5. ALS Sensitivity under low light conditions can be improved by increasing ADC integration time. 10 mlx resolution possible under the highest ADC integration time setting. |
类似零件编号 - SI1143 |
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类似说明 - SI1143 |
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