ADT7476ARQH ONSEMI [ON Semiconductor], ADT7476ARQH Datasheet - Page 46
ADT7476ARQH
Manufacturer Part Number
ADT7476ARQH
Description
dBCOOL Remote Thermal Controller and Voltage Monitor
Manufacturer
ONSEMI [ON Semiconductor]
Datasheet
1.ADT7476ARQH.pdf
(67 pages)
- Current page: 46 of 67
- Download datasheet (621Kb)
Fan Sync
to synchronize them so that one PWM channel from each
device can be effectively OR’ed together to create a PWM
output that reflects the maximum speed of the two OR’ed
PWMs. This OR’ed PWM can in turn be used to drive a
chassis fan.
Standby Mode
to the STBY supply. In computers that support S3 and S5
states, the core voltage of the processor is lowered in these
states. When monitoring THERM, the THERM timer
should be disabled during these states.
the following occurs:
limit, everything is re−enabled and the system resumes
normal operation.
XNOR Tree Test Mode
mode is useful for in−circuit test equipment at board−level
testing. By applying stimulus to the pins included in the
XNOR tree, it is possible to detect opens, or shorts, on the
system board.
the XNOR Tree Test Enable Register (0x6F).
When two ADT7476s are used in a system, it is possible
The ADT7476 has been specifically designed to respond
When the V
Once the core voltage, V
The ADT7476 includes an XNOR tree test mode. This
The XNOR tree test is invoked by setting Bit 0 (XEN) of
1. Status Bit 1 (V
2. SMBALERT is generated, if enabled.
3. THERM monitoring is disabled. The THERM
is set.
timer should hold its value prior to the S3 or S5
state.
CCP
voltage drops below the V
CCP
) in Interrupt Status Register 1
CCP
, goes above the V
CCP
low limit,
CCP
http://onsemi.com
low
46
XNOR tree test mode.
Power−On Default
default and the PWM outputs go to 100%. All necessary
registers then need to be configured via the SMBus for the
appropriate functions to operate.
Figure 66 shows the signals that are exercised in the
When the ADT7476 is powered up, monitoring is off by
Figure 66. XNOR Tree Test
TACH1
TACH2
TACH3
TACH4
PWM2
PWM3
VID0
VID1
VID2
VID3
VID4
PWM1/XTO
Related parts for ADT7476ARQH
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
300 Watt, SOT-23 Low Capacitance TVS for High Speed Line Protections
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
SWITCHMODE Power Rectifier
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
TMOS E−FET Power Field Effect Transistor DPAK for Surface Mount
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Trench Power MOSFET -20 V, Single P-Channel, SOT-23
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET 12 A, 60 V
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET 3.0 Amps 60 Volts N−Channel
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET 2.0 A, 60 V, Logic Level
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET 2 Amps, 500 Volts P−Channel D2PAK
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET 23 Amps, 25 Volts N−Channel D2PAK
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET -60 V, -27.5 A, P-Channel D2PAK
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
Power MOSFET 30 Amps, 200 Volts N−Channel Enhancement−Mode D2PAK
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
N-Channel Enhancement−Mode D2PAK
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet:
Part Number:
Description:
60 V, 60 A, N-Channel TO-220 and D2PAK
Manufacturer:
ONSEMI [ON Semiconductor]
Datasheet: