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SA56004X

Features: • Accurately senses temperature of remote microprocessor thermaldiodes or diode connected transistors within ±1 °C• On-chip local temperature sensing• 11-bit, 0.125 °C resolution• 8 different device addresses are available for server applications. The SA56004ED/ED...

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SA56004X: Features: • Accurately senses temperature of remote microprocessor thermaldiodes or diode connected transistors within ±1 °C• On-chip local temperature sensing• 11-bit, 0.125 °C re...

SA56004X Data Sheet

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Part Number:
SA56004X
Supply Ability:
5000

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Product Details

Description



Features:

• Accurately senses temperature of remote microprocessor thermal
diodes or diode connected transistors within ±1 °C
• On-chip local temperature sensing
• 11-bit, 0.125 °C resolution
• 8 different device addresses are available for server applications. The SA56004ED/EDP with marking code 56004E/600E is address compatible with the National LM86, the MAX6657/8 and the ADM1032.
• Offset registers available for adjusting the remote temperature accuracy
• Programmable under/overtemperature alarms: ALERT and T_CRIT
• SMBus 2.0 compatible interface, supports TIMEOUT
• Operating voltage range: 3.0 V to 3.6 V
• I2C-bus standard and fast mode compatible
• TSSOP8 and SO8 packages
• Programmable conversion rate (0.0625 Hz to 26 Hz)
• Undervoltage lockout prevents erroneous temperature readings
• Latch-up testing is done to JESDEC Standard JESD78 which exceeds 100 mA


Application

• System thermal management in laptops, desktops, servers and workstations
• Computers and office electronic equipment
• Electronic test equipment & instrumentation
• HVAC
• Industrial controllers and embedded systems


Pinout

Connection Diagram


Specifications

Symbol PARAMETER Min Max Unit
VDD

VD+
VD

ID+
 Supply voltage
Voltage at SDATA, SCLK, ALERT, T_CRIT
Voltage at Positive diode input
Voltage at Negative diode input
Sink current at SDATA, SCLK, ALERT, T_CRIT
D+ input current

0.3
0.3
0.3
0.3
1
1





65

+6
+6
VDD + 0.3
+0.8
50
1
471
664
2000
200
+150
+165
V
V
V
V
mA
mA
mW
mW
V
V
°C
°C
PD

Vesd		 Power dissipation

ESD		 SO8 package (derate 5.9 mW/°C above Tamb = 70 °C)
TSSOP8 package (derate 8.3 mW/°C above Tamb = 70 °C)
Human Body Model (Note 1)
Machine Model (Note 1)
Tj(max)
Tstg		 Maximum junction temperature
Storage temperature range
NOTES:
1. The D+ and D pins are 1000 V HBM and 100 V MM due to the higher sensitivity of the analog pins that introduces a limitation to the circuit
protection structure.


Description

The Philips SA56004X is an SMBus compatible, 11-bit remote/local digital temperature sensor with over temperature alarms. The remote channel of the SA56004X monitors a diode junction, such as a substrate PNP of a microprocessor or a diode connected transistor such as the 2N3904 (NPN) or 2N3906 (PNP). With factory trimming, remote sensor accuracy of ±1°C is achieved.

Under and over temperature alert thresholds can be programmed to cause the ALERT output to indicate when the on-chip or remote temperature is out of range. This output of SA56004X may be used as a system interrupt or SMBus alert. The T_CRIT output is activated when the on-chip or remote temperature measurement rises above the programmed T_CRIT threshold register value. This output may be used to activate a cooling fan, send a warning or trigger a system shutdown. To further enhance system reliability, the SA56004X employs an SMBus time-out protocol. The SA56004X has a unique device architecture which is patented (U.S. patent #6542020).

The SA56004X is available in the SO8 and TSSOP8 packages. It has 8 factory-programmed, device address options. It is pin-compatible with the LM86, MAX6657/8, and ADM1032.




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