Datasheet

AMC6821-Q1
www.ti.com ...................................................................................................................................................................................................... SBAS475 – JUNE 2009
Remote-Low-Temp-Limit Register (Address 0x19, Value After Power-On or Reset = 0x00, 0 ° C)
Bit 7 (MSB) Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 (LSB)
RT-L10 (MSB) RT-L9 RT-L8 RT-L7 RT-L6 RT-L5 RT-L4 RT-L3
These bits are the lower bounds of the remote temperature.
Remote-THERM-Limit Register (Address 0x1A, Value After Power-On or Reset = 0x64, +100 ° C)
Bit 7 (MSB) Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 (LSB)
RT-T10 (MSB) RT-T9 RT-T8 RT-T7 RT-T6 RT-T5 RT-T4 RT-T3
These bits are the thermal threshold of the remote temperature.
Local-Critical-Temp Register (Address 0x1B, Value After Power-On or Reset = 0x50, +80 ° C)
Bit 7 (MSB) Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 (LSB)
LT-C10 LT-C9 LT-C8 LT-C7 LT-C6 LT-C5 LT-C4 LT-C3
These bits are the critical threshold of the local temperature.
PSV-Temp Register (Address 0x1C, Value After Power-On or Reset = 0x00, 0 ° C)
Bit 7 (MSB) Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 (LSB)
0 0 PSV8 PSV7 PSV6 PSV5 PSV4 PSV3
Bits [PSV10:PSV0] are the passive cooling temperature threshold. Bits PSV10, PSV9, and [PSV2:PSV0] are
always '0'. The PSV ranges from 0 ° C to +64 ° C.
In the auto fan temperature loop, the fan stops and the duty cycle is forced to 0% when the active temperature is
equal to or below the PSV temperature.
Remote-Critical-Temp Register (Address 0x1D, Value After Power-On or Reset = 0x69, +105 ° C)
Bit 7 (MSB) Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 (LSB)
RT-C10 RT-C9 RT-C8 RT-C7 RT-C6 RT-C5 RT-C4 RT-C3
Bits [RT-C10:RT-C0] are the critical threshold of the remote temperature.
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