SX8733 SEMTECH [Semtech Corporation], SX8733 Datasheet
SX8733
Related parts for SX8733
SX8733 Summary of contents
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... The parasitic resistances in series with the temperature monitoring diode can be cancelled by an algorithmic point or a Kelvin (4-wire) method. The SX8744 is pin-to-pin compatible with the LM86 part. The SX8733 (2 programmable ports) is available in MLPD- 6 package. The SX8743 (4 programmable ports) and SX8744 (3 programmable ports) are available in MSOP-8 package. ...
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... Soft Reset ...................................................................................................................................................... 15 7. Register / Memory Map ......................................................................................................................................... 16 7.1. Memory Map .................................................................................................................................................. 16 7.2. Registers Description..................................................................................................................................... 16 8. Packaging Information ........................................................................................................................................... 20 8.1. MLPD-W6-EP2 Package Outline Drawing..................................................................................................... 20 8.2. MLPD-W6-EP2 Land Pattern Drawing........................................................................................................... 21 8.3. Package Outline Drawing: MSOP-8............................................................................................................... 22 8.4. Land Pattern Drawing: MSOP-8 .................................................................................................................... 23 ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 Page 2 DATASHEET Page www.semtech.com ...
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... Input voltage on programmable V PIN,ABSMAX pin V Input voltage on SMBUS pin I Input current on any pin PIN,ABSMAX Peak reflow temperature Latchup ESD ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 Symbol Conditions T J,STORE J,ABSMAX P1, P2, P3, P4 SMBCLK, SMBDAT PIN,SMBUS T PKG I LUP HBM Human Body Model ...
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... Input logic low Output logic low Current leakage on SMBCLK/ SMBDAT Capacitive load on SMBCLK/ SMBDAT 1. Specification with VDD=3.0V to 3.6V and track resistance cancellation disabled. ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 Symbol Conditions V DD Operating temperature = T J Junction temperature 10 Hz sampling rate ...
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... The device provides a hold time of at least 300ns for the SMBDAT signal to bridge the undefined region of the falling edge of SMBCLK. 1.5. SMBus Timing Waveforms SMBDAT SMBCLK t t SU,STA HD,STA Start ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 Symbol Conditions f SMB t LOW t HIGH t R,SMB ...
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... DIGITAL Alarm output, pseudo-open drain ANALOG Ext. diode return current sink P4 DIGITAL Alarm output, pseudo-open drain Ext. diode return current sink VSS POWER ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 1 SX8743 SX8733 P1 VDD VSS P3 SMBDAT P2 SMBCLK P1 VDD VSS SMBDAT ...
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... Kelvin (4-wire) track resistance cancellation Alarm # Due to their limited number of ports, SX8733 and SX8744 do not offer all theses features. SX8733 does not provide ports P3 and P4 so modes should not be used. Also port P3 is not available on SX8744 and this typically reduces the number of alarm or the number of external sensors ...
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... ALARM2 Mode 3 P1 VSS VDD P2 ALARM1 Mode 6, Mode VDD P3 ALARM1 P4 ALARM2 Mode 10 Figure 3. Mode Connection Diagrams (Modes 0 to 12) ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 Mode VSS Mode 4, Mode Mode 8, Mode ...
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... P1 P2 VDD VSS P3 P4 Mode 13, Mode VSS VDD P4 Mode 16, Mode Mode 20 Figure 4. Mode Connection Diagrams (Modes and 20) ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 ALARM1 P4 ALARM2 Mode ...
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... The 3-point track resistance cancellation requires one additional connection to the external PN junction so that an additional current source can be used to cancel out the error voltage due to the track resistance. ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 difference voltage with current and temperature T where: BE -23 ...
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... Table 6). The register RegSensor defines which sensors are scanned in the sequence. When all the sensors are selected, the sequence is the following: Int ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 Assume sensor Q1 is being measured in mode 2 with 3-point track resistance cancellation enabled. The PCB trace linking the device to the external sensor must be matched which means the V2 PCB track resistance are the same ...
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... LSB representing 1ºC and contains the integer part of the temperature while the low byte contains the fractional value with a resolution of 0.125ºC. The SX8733 has 2 temperature data formats. By default, the format is binary and the measurement range is from 0ºC to 127ºC. To extend the measurement range to -40ºC to +140ºC, an offset of 64ºC is added to the binary code. ...
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... PN junction smoothes out external noise interference. The capacitor must be located very close to the pins. The ideality factor is a measure of the deviation of the thermal diode from ideal behavior. The chips are trimmed for the PNP device described in Table 5. ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 1 Offset Binary 2 0001 1000 0100 0000 ...
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... R/ W Slave address 0x4C 6.2. Register Write - Direct Format Write to single register (direct format) SA6 SA5 SA4 SA3 SA2 SA1 SA0 Slave address 0x4C ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 Manufacturer Fairchild Table 5 Recommended device ...
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... Register Address 0x06 Page 15 Digital temperature sensor DATASHEET Read data driven by SX8733 RA0 WD7 WD6 WD5 WD4 WD3 WD2 WD1 WD0 Write Data 0xXX www.semtech.com ...
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... Mode rw ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 Identification Registers Configuration Registers Temperature Registers temperature reading for internal sensor, integer part, LSB = 1ºC temperature reading for internal sensor, fractional part, LSB = 0.125ºC temperature reading for external sensor 1, integer part, LSB = 1ºC temperature reading for external sensor 1, fractional part, LSB = 0.125º ...
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... Bits Name Mode 7:4 Hysteresis2 rw 3:0 Hysteresis1 rw ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 Addr: 0x06 RegExtGain Reset Description 00 Write to 00 Gain adjustement for external temperature measurement xxxxxx Do not write to avoid production calibration altering Addr: 0x07 RegExtOffset Reset Description Offset adjustement for external temperature measurement. ...
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... ExtTemp3MSB r Bits Name Mode 7:3 Reserved r 2:0 ExtTemp3LSB r ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 Addr: 0x27 RegADCRate Reset Description 000 Write to 000 0: Standby 0 1: Perform one temperature measurement 0: Disable continuous temperature sampling 0 1: Enable continuous temperature sampling Temperature sampling rate 000: 0.1 second (continuous sampling) 001: 0 ...
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... ExtTemp1End IntTempEnd w 1. write logic 1 to register bit to clear ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 Addr: 0x30 RegControl Reset Description 000 Write to 000 0: No clock stretching 1 1: Enable clock stretching 0: Binary mode 0 1: Offset binary mode 0: Disable 3-point track resistance cancellation ...
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... INDICATOR (LASER MARK) aaa LxN E/2 N D/2 NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS TERMINALS. ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 SEATING PLANE bxN bbb Page 20 Digital temperature sensor ...
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... COMPANY'S MANUFACTURING GUIDELINES ARE MET. 3. THERMAL VIAS IN THE LAND PATTERN OF THE EXPOSED PAD SHALL BE CONNECTED TO A SYSTEM GROUND PLANE. FAILURE MAY COMPROMISE THE THERMAL AND/OR FUNCTIONAL PERFORMANCE OF THE DEVICE. ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 Page 21 ...
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... NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. DATUMS -A- AND 3. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. 4. REFERENCE JEDEC STD MO-187, VARIATION AA. ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 e/2 DIM aaa ...
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... ADVANCED COMMUNICATIONS & SENSING 8.4. Land Pattern Drawing: MSOP-8 X (C) P NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 DIMENSIONS DIM INCHES (.161 .098 .026 X ...
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... Contact information Semtech Corporation Advanced Communications & Sensing Products Taiwan Korea Shanghai Japan ACS Revision 2.91/February 2010 ©2010 Semtech Corp. SX8733/SX8743/SX8744 Tel: 886-2-2748-3380 Switzerland Fax: 886-2-2748-3390 Tel: 82-2-527-4377 United Kingdom Fax: 82-2-527-4376 Tel: 86-21-6391-0830 France ...