AMC6821 Datasheet, PDF (42/47 Pages) Burr-Brown (TI) – Analog Monitor and Control Circuit

AMC6821
SBAS386A – MAY 2006 – REVISED MAY 2006
www.ti.com
Remote-Low-Temp-Limit Register (Address 0x19, Value After Power-On or Reset = 0x00, 0°C)
Bit 7 (MSB)
RT-L10 (MSB)
Bit 6
RT-L9
Bit 5
RT-L8
Bit 4
RT-L7
Bit 3
RT-L6
Bit 2
RT-L5
Bit 1
RT-L4
Bit 0 (LSB)
RT-L3
These bits are the lower bounds of the remote temperature. Bits [RT-L2:RT-L0] are always '0'.
Remote-THERM-Limit Register (Address 0x1A, Value After Power-On or Reset = 0x64, +100°C)
Bit 7 (MSB)
RT-T10 (MSB)
Bit 6
RT-T9
Bit 5
RT-T8
Bit 4
RT-T7
Bit 3
RT-T6
Bit 2
RT-T5
Bit 1
RT-T4
Bit 0 (LSB)
RT-T3
These bits are the thermal threshold of the remote temperature. Bits [RT-T2:RT-T0] are always '0'.
Local-Critical-Temp Register (Address 0x1B, Value After Power-On or Reset = 0x50, +80°C)
Bit 7 (MSB)
LT-C10
Bit 6
LT-C9
Bit 5
LT-C8
Bit 4
LT-C7
Bit 3
LT-C6
Bit 2
LT-C5
Bit 1
LT-C4
Bit 0 (LSB)
LT-C3
These bits are the critical threshold of the local temperature. Bits [LT-C2:LT-C0] are always '0'.
Bit 7 (MSB)
0
PSV-Temp Register (Address 0x1C, Value After Power-On or Reset = 0x00, 0°C)
Bit 6
0
Bit 5
PSV8
Bit 4
PSV7
Bit 3
PSV6
Bit 2
PSV5
Bit 1
PSV4
Bit 0 (LSB)
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)
RT-C10
Bit 6
RT-C9
Bit 5
RT-C8
Bit 4
RT-C7
Bit 3
RT-C6
Bit 2
RT-C5
Bit 1
RT-C4
Bit 0 (LSB)
RT-C3
Bits [RT-C10:RT-C0] are the critical threshold of the remote temperature. [Bits RT-C2:RT-C0] are always '0'.
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