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Preliminary Data Sheet

14

International

Rectifier

IRVR101

Excitation Current or Temperature Signal from the Regulator (I)

Excitation Current. 6 bits (2:0 – 2:5), 64 values. Information needed for calculation of alternator

output current and torque. Excitation current will be sent by 6 bits, the least significant bit will always

be set to 0.

Excitation current

Byte 2 (I)

Bit:

543210

>7.750

11111x

>7.500

11110x

>7.250

11101x

>7.000

11100x

>6.750

11011x

>6.500

11010x

>6.250

11001x

>6.000

11000x

>5.750

10111x

>5.500

10110x

>5.250

10101x

>5.000

10100x

>4.750

10011x

>4.500

10010x

>4.250

10001x

>4.000

10000x

>3.750

01111x

>3.500

01110x

>3.250

01101x

>3.000

01100x

>2.750

01011x

>2.500

01010x

>2.250

01001x

>2.000

01000x

>1.750

00111x

>1.500

00110x

>1.250

00101x

>1.000

00100x

>0.750

00011x

>0.500

00010x

>0.250

00001x

>0.000

00000x

Regulator Temperature, 6 bits (2:0 – 2:5), 32 values (pin selectable option). Information needed

for calculation of alternator output current and torque. To be used in place of excitation current per

customer specific requirements. Temperature will be sent by 6 bits, the least significant bit will always

be set to 0.

Regulator

baseplate temp

Byte 2 (I)

Bit:

543210

-29

111110

-23

111100

-17

111010

-11

111000

-5

110110

1

110100

7

110010

13

110000

19

101110

25

101100

31

101010

37

101000

43

100110

49

100100

55

100010

61

100000

67

011110

73

011100

79

011010

85

011000

91

010110

97

010100

103

010010

109

010000

115

001110

121

001100

127

001010

133

001000

139

000110

145

000100

151

000010

157

000000