ADT7476A
ADT7476A is Remote Thermal Controller and Voltage Monitor manufactured by onsemi.
Features
- Monitors Up to Five Voltages
- Improved TACH and PWM Performance
- Controls and Monitors Up to Four Fans
- High and Low Frequency Fan Drive Signal
- One On-Chip and Two Remote Temperature Sensors
- Extended Temperature Measurement Range Up to 191°C
- Automatic Fan Speed Control Mode Controls System Cooling Based on Measured Temperature
- Enhanced Acoustic Mode Dramatically Reduces User Perception of
Changing Fan Speeds
- Thermal Protection Feature via THERM Output
- Monitors Performance Impact of Intel® Pentium® 4 Processor
- Thermal Control Circuit via THERM Input
- 3-wire and 4-wire Fan Speed Measurement
- Limit parison of All Monitored Values
- 5.0 V Support on all TACH and PWM Channels
- Meets SMBus 2.0 Electrical Specifications
- This Device is Pb-Free, Halogen Free and is Ro HS pliant
QSOP- 24 NB CASE 492B
PIN ASSIGNMENT
SDA 1
24 PWM1/XTO
SCL 2 GND 3 VCC 4 VID0/GPIO0 5 VID1/GPIO1 6 VID2/GPIO2 7 VID3/GPIO3 8
ADT7476A (Top View)
23 VCCP 22 +2.5VIN/THERM 21 +12VIN/VID5 20 +5VIN 19 VID4/GPIO4 18 D1+ 17 D1-
TACH3 9 PWM2/
10 SMBALERT
TACH1 11
16 D2+ 15 D2- 14
- TACH2 12
13 PWM3/ADDREN
- TACH4/THERM/SMBALERT/GPIO6/ADDR SELECT
MARKING DIAGRAMS
ADT7476AARQZ #YYWW xxxx
ADT7476AARQZ = Specific Device Code
#
= Pb-Free Package
YYWW
= Date Code xxxx
= Assembly Lot...
