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参数资料
| 型号： | MAX9635ESA+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 9/20页 |
| 文件大小： | 0K |
| 描述： | IC AMBIENT LIGHT SENSOR 8NSOIC |
| 标准包装： | 1 |
| 带接近传感器： | 无 |
| 波长： | 630nm |
| 电源电压： | 1.7 V ~ 3.6 V |
| 输出类型： | 数字 - I²C |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 管件 |
Industry’s Lowest-Power
Ambient Light Sensor with ADC
Integration Timer Bits (TIM[2:0])
The TIM[2:0] bits can be used to program the signal integration time.
In automatic mode (MANUAL = 0), integration time is automatically selected by the on-chip algorithm to be either
100ms/200ms/400ms/800ms. In manual mode (MANUAL = 1), integration time can be varied by the user all the way
from 6.25ms to 800ms. See Table 7.
Table 7. Integration Time
TIM[2:0]
000
001
010
011
100
101
110
111
INTEGRATION
TIME (ms)
800
400
200
100
50
25
12.5
6.25
COMMENTS
This is a preferred mode for boosting low-light sensitivity.
—
—
This is a preferred mode for high-brightness applications.
Manual mode only.
Manual mode only.
Manual mode only.
Manual mode only.
Lux High-Byte Register 0x03
BIT 7
E3
BIT 6
E2
BIT 5
E1
BIT 4
E0
BIT 3
M7
BIT 2
M6
BIT 1
M5
BIT 0
M4
REGISTER
ADDRESS
0x03
Bits in Lux High-Byte register 0x03 give the 4 bits of exponent E3:E0 and 4 most significant bits of the mantissa byte
M7:M4, and represent the lux reading of ambient light. The remaining 4 bits of the mantissa byte M3:M0 are in the Lux
Low-Byte register 0x04 and enhance resolution of the lux reading from the IC.
Exponent (E[3:0]): Exponent bits of the lux reading (0000 to 1110). Note: A reading of 1111 represents an overrange
condition.
Mantissa (M[7:4]): Four most significant bits of mantissa byte of the lux reading (0000 to 1111).
Lux = 2 (exponent) x mantissa x 0.72
Exponent = 8xE3 + 4xE2 + 2xE1 + E0
Mantissa = 8xM7 + 4xM6 + 2xM5 + M4
A code of 0000 0001 calculates to be 0.72 lux.
A code of 1110 1111 calculates to be 176,947 lux.
A code of 1110 1110 calculates to be 165,151 lux.
Update of the contents of this register is internally disabled during I 2 C read operations to ensure proper data transfer
between internal ADC and I 2 C registers. Update of I 2 C registers is resumed when the master sends a STOP command.
If user wants to read both the Lux High-Byte register 0x03 and Lux Low-Byte register 0x04, then the master should
not send a STOP command between the reads of the two registers. Instead a REPEATED START command should
be used. This ensures accurate data is obtained from the I 2 C registers (by disabling internal updates during the read
process).
9
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| MAX9635ESA+ | 功能描述:环境光传感器 Ambient Light Sensor RoHS:否 制造商:Vishay Semiconductors 工作电源电压: 峰值波长:570 nm 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:T-1 封装:Bulk |
| MAX9635ESA+T | 功能描述:环境光传感器 Ambient Light Sensor RoHS:否 制造商:Vishay Semiconductors 工作电源电压: 峰值波长:570 nm 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:T-1 封装:Bulk |
| MAX9635EVKIT | 功能描述:光学传感器开发工具 MAX9635 Eval Kit RoHS:否 制造商:ams 工具用于评估: 接口类型: 最大工作温度: |
| MAX9635EVKIT# | 功能描述:环境光传感器 Industry’s Lowest-Power Ambient Light Sensor with ADC RoHS:否 制造商:Vishay Semiconductors 工作电源电压: 峰值波长:570 nm 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:T-1 封装:Bulk |
| MAX9635EVKIT+ | 功能描述:光学传感器开发工具 MAX9635 Eval Kit RoHS:否 制造商:ams 工具用于评估: 接口类型: 最大工作温度: |
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