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LTC2991 Datasheet(PDF) 21 Page - Linear Technology

Part # LTC2991
Description  Octal I2C Voltage, Current, and Temperature Monitor
PDF  32 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2991 Datasheet(HTML) 21 Page - Linear Technology

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LTC2991
21
2991fd
For more information www.linear.com/LTC2991
Table 11. Temperature Measurement MSB Data Register Format
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
DV*
X
X
D12
D11
D10
D9
D8
*Data valid is set when a new result is written into the register. Data valid is cleared
when this register is addressed (read) by the I2C interface.
X Unused
Table 12. Temperature Measurement LSB Data Register Format
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
D7
D6
D5
D4
D3
D2
D1
D0
Table 14. Diode Voltage Measurement LSB Data Register Format
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
D7
D6
D5
D4
D3
D2
D1
D0
Table 13. Diode Voltage Measurement MSB Data Register Format
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
DV*
X
X
D12
D11
D10
D9
D8
*Data valid is set when a new result is written into the register. Data valid is cleared
when this register is addressed (read) by the I2C interface.
X Unused
Table 15. PWM Threshold Register Format
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
D7
D6
D5
D4
D3
D2
D1
D0
D7:D0 = PWM[8:1], bit 0 is located in the PWM, VCC and TINT CONTROL Register (Table 7)
Table 16. Conversion Formats
VOLTAGE FORMATS
SIGN
BINARY VALUE D[13:0]
VOLTAGE
Single-Ended
LSB = 305.18µV = 2.5/213
0
11111111111111
>5
0
10110011001101
3.5000
0
01111111111111
2.5000
0
00000000000000
0.0000
1
11110000101001
–0.3000
Differential
LSB = 19.075µV = 2.5/217
0
11110101101111
0.300
0
10000010001111
0.159
0
00000000000000
0.0000
1
01111101110001
–0.159
1
00001010010001
–0.300
VCC = Result + 2.5V
LSB = 305.18µV = 2.5/213
0
10110011001101
VCC = 6.0
0
10000000000000
VCC = 5.0
0
00001010001111
VCC = 2.7
applicaTions inForMaTion



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