Intel i5-2435M AV8062700995706 Data Sheet

The DTS is expected to work within ±5° C over the operating range.

Digital Thermal Sensor based fan speed control (T

FAN

) is a recommended feature to

achieve optimal thermal performance. At the T

FAN

 temperature, Intel recommends full

cooling capability well before the DTS reading reaches Tj

MAX

.

PROCHOT# (processor hot) is asserted when the processor temperature has reached

its maximum operating temperature (Tj

MAX

). Only a single PROCHOT# pin exists at a

package level. When any core arrives at the TCC activation point, the PROCHOT#

signal will be asserted. PROCHOT# assertion policies are independent of Adaptive

Thermal Monitor enabling.

By default, the PROCHOT# signal is set to bi-directional. However, it is recommended

to configure the signal as an input only. When configured as an input or bi-directional

signal, PROCHOT# can be used for thermally protecting other platform components in

case the components overheat as well. When PROCHOT# is driven by an external

device:
•

The package will immediately transition to the lowest P-State (Pn) supported by

the processor and graphics cores. This is contrary to the internally-generated

Adaptive Thermal Monitor response.

•

Clock modulation is not activated.

The processor package will remain at the lowest supported P-state until the system

de-asserts PROCHOT#. The processor can be configured to generate an interrupt upon

assertion and de-assertion of the PROCHOT# signal.

When PROCHOT# is configured as a bi-directional signal and PROCHOT# is asserted

by the processor, it is impossible for the processor to detect a system assertion of

PROCHOT#. The system assertion will have to wait until the processor de-asserts

PROCHOT# before PROCHOT# action can occur due to the system assertion. While the

processor is hot and asserting PROCHOT#, the power is reduced; however, the

reduction rate is slower than the system PROCHOT# response of < 100 us. The

processor thermal control is staged in smaller increments over many milliseconds. This

may cause several milliseconds of delay to a system assertion of PROCHOT# while the

output function is asserted.

PROCHOT# may be used for thermal protection of voltage regulators (VR). System

designers can create a circuit to monitor the VR temperature and assert PROCHOT#

and, if enabled, activate the TCC when the temperature limit of the VR is reached.

When PROCHOT# is configured as a bi-directional or input only signal, if the system

assertion of PROCHOT# is recognized by the processor, it will result in an immediate

transition to the lowest P-State (Pn) supported by the processor and graphics cores.

Systems should still provide proper cooling for the VR and rely on bi-directional

5th Generation Intel

®

 Core

™

 Processor Family, Intel

®

 Core

™

 M Processor Family, Mobile Intel

®

 Pentium

®

 Processor Family, and

Mobile Intel

®

 Celeron

®

 Processor Family

March 2015

Datasheet – Volume 1 of 2

Order No.: 330834-004v1

69