SA56004X SMBus-compatible, 8-pin, remote/local digital temperature sensor with overtemperature alarms Rev. 7 25 February 2013 Product data sheet 1. General description The NXP Semiconductors SA56004X is an SMBus compatible, 11-bit remote/local digital temperature sensor with overtemperature 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. Undertemperature and overtemperature 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 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 enhance system reliability further, the SA56004X employs an SMBus time-out protocol. The SA56004X has a unique device architecture. The SA56004X is available in the SO8, TSSOP8 and HVSON8 packages. SA56004X has 8 factory-programmed device address options. The SA56004X is pin-compatible with the LM86, MAX6657/8, and ADM1032. 2. Features and benefits Accurately senses temperature of remote microprocessor thermal diodes or diode connected transistors within 1 C On-chip local temperature sensing within 2 C Temperature range of 40 C to +125 C 11-bit, 0.125 C resolution 8 different device addresses are available for server applications. The SA56004ED with marking code 56004E, and SA56004EDP with marking code 6004E are 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 2 I C-bus Standard-mode and Fast-mode compatible SO8, TSSOP8 and HVSON8 packages Programmable conversion rate (0.0625 Hz to 26 Hz) Undervoltage lockout prevents erroneous temperature readings Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mASA56004X NXP Semiconductors Digital temperature sensor with overtemperature alarms 3. Applications System thermal management in laptops, desktops, servers and workstations Computers and office electronic equipment Electronic test equipment and instrumentation HVAC Industrial controllers and embedded systems 4. Ordering information Table 1. Ordering information 1 Type number Topside Package marking Name Description Version SA56004AD 56004AD SO8 plastic small outline package 8 leads body width 3.9 mm SOT96-1 SA56004BD 56004BD SA56004CD 56004CD SA56004DD 56004DD SA56004ED 56004ED SA56004FD 56004FD SA56004GD 56004GD SA56004HD 56004HD SA56004ADP 6004A TSSOP8 plastic thin shrink small outline package 8 leads body width 3 mm SOT505-1 SA56004BDP 6004B SA56004CDP 6004C SA56004DDP 6004D SA56004EDP 6004E SA56004FDP 6004F SA56004GDP 6004G SA56004HDP 6004H SA56004ATK 6004A HVSON8 plastic thermal enhanced very thin small outline package no leads SOT782-1 8 terminals body 3 3 0.85 mm SA56004ETK 6004E 1 There are 8 device slave address options, as described in Table 4. SA56004X All information provided in this document is subject to legal disclaimers. NXP B.V. 2013. All rights reserved. Product data sheet Rev. 7 25 February 2013 2 of 43