LM96163C NSC [National Semiconductor], LM96163C Datasheet - Page 24

• Manufacturer Part Number: LM96163C
• Manufacturer: NSC [National Semiconductor]

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Address
Hex
5A
5B
58
59
reg 4A
reg 4A
Read/
Read.
(Write
Read.
(Write
Write
only if
5 = 1)
only if
5 = 1)
bit
bit
Bits
6:0
7:6
5:0
6:0
7:6
5:0
7
7
Value
POR
0x7F
0x3F
0x7F
0x3F
00
00
0
0
E5D7:E5D6
E5D5:E5D0
E6D7:E6D6
E6D5:E6D0
E5T6:E5T0
E6T6:E6T0
Name
E5T7
E6T7
Lookup Table Temperature Entry 5
Bit 7 is unused and always set to 0 in the low resolution temperature LUT mode.
In the high resolution temperature LUT mode bit 7 in conjunction with bits 6:0 of
this register are used to determine the limit temperature that the remote diode
temperature is compared to. In high resolution the range is 0°C to 127.5°C. In
low resolution mode the range is 0°C to 127°C. If the remote diode temperature
exceeds this value, the PWM output will be the value in Register 0x59. Only 9-
bits of the temperature reading are used in high resolution and 8-bits in low
resolution. Only positive temperature values can be programed in this register
and in all cases the sign bit is assumed to be zero. Temperatures greater than
127 °C or 127.5 °C can be programmed through the use of the Lookup Table
Temperature Offset Register (4Eh).
Lookup Table PWM Duty Cycle Extended Entry 5
These bits are unused and always set to 0 in the low resolution duty cycle LUT
mode. In the high resolution duty cycle LUT mode these bits in association with
bits 5:0 of this register are used for the PWM value associated with the
temperature limit in register 0x58. These bits can only be activated when PWM
frequency of 22.5kHz is chosen.
Lookup Table PWM Duty Cycle Entry 5
The PWM value corresponding to the temperature limit in register 0x58 for the
low resolution PWM mode.
Lookup Table Temperature Entry 6
Bit 7 is unused and always set to 0 in the low resolution temperature LUT mode.
In the high resolution temperature LUT mode bit 7 in conjunction with bits 6:0 of
this register are used to determine the limit temperature that the remote diode
temperature is compared to. In high resolution the range is 0°C to 127.5°C. In
low resolution mode the range is 0°C to 127°C. If the remote diode temperature
exceeds this value, the PWM output will be the value in Register 0x5B. Only 9-
bits of the temperature reading are used in high resolution and 8-bits in low
resolution. Only positive temperature values can be programed in this register
and in all cases the sign bit is assumed to be zero. Temperatures greater than
127 °C or 127.5 °C can be programmed through the use of the Lookup Table
Temperature Offset Register (4Eh).
Lookup Table PWM Duty Cycle Extended Entry 6
These bits are unused and always set to 0 in the low resolution duty cycle LUT
mode. In the high resolution duty cycle LUT mode these bits in association with
bits 5:0 of this register are used for the PWM value associated with the
temperature limit in register 0x5A. These bits can only be activated when PWM
frequency of 22.5kHz is chosen.
Lookup Table PWM Duty Cycle Entry 6
The PWM value corresponding to the temperature limit in register 0x5A for the
low resolution PWM mode.
24
Description