ADT7463 Analog Devices, ADT7463 Datasheet - Page 19

• Manufacturer Part Number: ADT7463
• Description: Dbcool Thermal Management Controller And Voltage Monitor
• Manufacturer: Analog Devices

SHORT CYCLE
Figure 23 displays the steps taken during the short cycle.
LONG CYCLE
Figure 24 displays the steps taken during the long cycle.
REV. 0
MEASUREMENT
MEASUREMENT
TEMPERATURE
TEMPERATURE
TEMPERATURE
MEASUREMENT
OPERATING
TEMPERATURE
TEMPERATURE
PREVIOUS
CURRENT
OPERATING
T1 (n–1)
CURRENT
POINT
T1(n)
OP1
POINT
T1(n)
OP1
IS T1(n) – T1(n–1) = 0.5 – 0.75 C
IS T1(n) – T1(n–1) = 1.0 – 1.75 C
IS T1(n) – T1(n–1) > 2.0 C
IS T1(n) < LOW TEMP LIMIT
T
Figure 23. Short Cycle
MIN
IS T1(n) – T1(n–1)
Figure 24. Long Cycle
MONITORING
(OP1 – HYS)
IS T1(n)
< HIGH TEMP LIMIT
MONITORING
IS T1(n) >
CYCLES
T1(n) > T
WAIT n
T
CYCLES
0.25 C
WAIT 2n
MIN
AND
AND
AND
YES
NO
< OP1
NO
NO
–19–
OP1
MIN
NO
YES
YES
YES
DECREASE T
DECREASE T
DECREASE T
OR CONSTANT.)
(i.e., SYSTEM IS
COOLING OFF
DO NOTHING
DO NOTHING
DECREASE T
T
INCREASE
CHANGE
MIN
DO NOT
by 1 C
by 1 C
MIN
MIN
MIN
by 1 C
by 2 C
by 4 C
MIN
AN-613