LM96163C NSC [National Semiconductor], LM96163C Datasheet - Page 25

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

Address
Hex
5C
5D
5E
5F
reg 4A
reg 4A
Read/
Read.
(Write
only if
5 = 1)
Read.
(Write
only if
5 = 1)
Write
bit
bit
Bits
6:0
7:6
5:0
6:0
7:6
5:0
7
7
Value
0x7F
0x3F
0x7F
0x3F
POR
00
00
0
0
E7D7:E7D6
E7D5:E7D0
E8D7:E8D6
E8D5:E8D0
E7T6:E7T0
E8T6:E8T0
Name
E7T7
E8T7
Lookup Table Temperature Entry 7
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 0x5D. 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 7
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 0x5C. These bits can only be activated when PWM
frequency of 22.5kHz is chosen.
Lookup Table PWM Duty Cycle Entry 7
The PWM value corresponding to the temperature limit in register 0x5C for the
low resolution PWM mode.
Lookup Table Temperature Entry 8
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 0x5F. 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 8
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 0x5E. These bits can only be activated when PWM
frequency of 22.5kHz is chosen.
Lookup Table PWM Duty Cycle Entry 8
The PWM value corresponding to the temperature limit in register 0x5E for the
low resolution PWM mode.
25
Description
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