f75393 Feature Integration Technology Inc., f75393 Datasheet
f75393
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f75393 Summary of contents
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... F75393 o ±1 C Temperature Sensor with ß Compensation Release Date: May, 2008 Revision: V0.16P ...
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... F75393 Datasheet Revision History Version Date Page V0.10P 2007/7/23 - V0.11P 2007/9/20 - V0.12P 2007/11/5 - V0.13P 2008/1/25 - V0.14P 2008/1/29 - V0.15P 2008/3/5 - V0.16P 2008/5/29 5 Please note that all data and specifications are subject to change without notice. All the trade marks of products and companies mentioned in this data sheet belong to their respective owners. ...
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... Fintek Vendor ID (MSB) (Manufacturer ID) Register Index 5Dh................................ 11 7.11 Fintek Vendor ID (LSB) (Manufacturer ID) Register Index 5Eh................................. 11 7.12 SMBus Address Entry Key Register Index FAh......................................................... 12 7.13 Fintek Vendor ID II (Manufacturer ID) RegisterIndex FEh.......................................... 12 7.14 Value RAM Index 10h- 2Fh ....................................................................................... 12 8. Electrical characteristic.......................................................................................................... 13 8.1 Absolute Maximum Ratings .............................................................................................. 13 F75393 -II- F75393 May, 2008 V0.16P ...
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... DC Characteristics ............................................................................................................ 13 8.3 AC Characteristics ............................................................................................................ 15 9. Ordering Information ............................................................................................................. 15 10. Package Dimensions............................................................................................................. 16 11. Application Circuit.................................................................................................................. 18 F75393 -III- F75393 May, 2008 V0.16P ...
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... An 11-bit analog-to-digital converter (ADC) was built inside F75393. The F75393 can monitor two set of temperature which is very important for the system to work stably and properly. This chip provides 1 remote temperature sensor and 1 local temperature sensor. The remote temperature sensor can be performed by CPU thermal transistor or transistor 2N3906. The F75393 also can support new generational 45nm CPU temperature sensing by varied ß ...
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... VCC 1 7 F75383 D+ 2 F75393 F75384 -2- F75393 SCL SDA ALERT# GND May, 2008 V0.16P ...
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... Access Interface The F75393 can be connected to a compatible 2-wire serial system management bus as a slave device under the control of the master device, using two device terminals SCL and SDA. The F75393 supports SMBus protocol of, “Write Byte”, “Read Byte”, both with or without Packet Error checking (PEC) which is calculated using CRC-8 ...
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... Figure 4. Alert Response Address The F75393 provides SMBus address option function. Pull high register (Alert Pin) to select SMBus address by power on strapping and entry key writing. These two conditions must be done both for address selection. If you only option pull high register without ...
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... For example, use 30k resistor for address 6A selection. User need to write entry key to register CRFAh. 6.4 Temperature Monitoring The F75393 monitors a local and a remote temperature sensor. Both can be measured from -40°C to 127.875°C. The temperature format is as the following table: Temperature ( High Byte ) -40° ...
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... Thermal mass effect can seriously degrade the F75393’s effective accuracy. The thermal time constant of the SOP package is about 140 in still air. For the F75393’s junction temperature to settle to within +1°C after a sudden +100°C change requires about five time constants or 12 minutes. The use of smaller packages for remote sensors such as SOT23, improves the situation. Take care to account for thermal gradients between the heat source and the sensor package do not interfere with measurement accuracy ...
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... Nearly all noise sources tested cause the ADC measurement to be higher than the actual temperature, depending on the frequency and amplitude. 6.10 Beta Compensation The F75393 is configured to detect the temperature of diodes (e.g. 2N3906) or CPU thermal diodes. The diode can be connected in different way as below Figure. Substrate PNP transistor i ...
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... The F75393 can cancel resistor effect from CPU internal circuit or PCB circuit. 6.12 PCB Layout Guide PCB can be electrically noisy environments, and the F75393 is measuring very small voltage from the remote sensor, so care must be taken to minimize noise which is occurred at the sensor inputs. The following guideline should be taken to reduce the measurement error of the temperature sensors: 1 ...
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... Set to 1, VT2 temperature goes below low limit. Set to 0, VT2 temperature does not goes below low limit. 0 Set to 1, VT2 is open-circuit. 0 Set to 1, VT2 temperature exceeds its THERM limit. 0 Set to 1, VT1 temperature exceeds its THERM limit. -9- F75393 May, 2008 V0.16P ...
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... Set to 0, disable This number determines how many abnormal measurements must occur before ALERT signal is generated. 000 : Once 001 : Twice 011 : 3 times 111 : 4 times 1 Always read 1. Description 0 Reserved -10- F75393 Value Conversion/Sec 06h 4 07h 8 08h 16 09h 32 0Ah 64 0Bh ~ FFh Reserved May, 2008 ...
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... DN pad BIAS voltage 220mV 0h Dummy registers Enable resister cancelled function. 0: Disable register cancelled function. 2h Dummy registers. Description 07h Fintek Chip ID 1 Description 07h Fintek Chip ID 2 Description 19h Fintek Vendor ID 1 Description 34h Fintek Vendor ID 2 -11- F75393 May, 2008 V0.16P ...
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... R/W 21h (0Ah) R/W 19h (55h) R/W 23h (0Ah) R/W 1Dh 1Eh (00h) (00h) R/W 11h 12h (00h) (00h) -12- F75393 Description Description Write Write Address Address (Low Byte) (High Byte) 0Bh 1Bh 0Ch 1Ch 0Dh 13h 0Eh 14h 20h 21h 19h 23h 1Dh 1Eh ...
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... < T < 100 C, VCC = 3. Conversions / Sec Rate 0.0625 Conversions / Sec Rate VDD input, Disables ADC , Rising Edge High Level Low Level -13- F75393 UNIT V V ° C ° C MIN TYP MAX Unit o ± ± 1 ± ± 1 ± ...
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... IOH -12 -10 ILIH +1 ILIL -1 IOL 12 16 IOH -14 -12 IOL 12 16 Vt- 0.5 0.8 1.1 Vt+ 1.6 2.0 2.4 ILIH +1 ILIL -1 -14- F75393 UNIT CONDITIONS VOL = 0.4V mA VOH = 2.4V µA VIN = VDD µA VIN = 0V V VDD = 3 VDD = 3 VOL = 0 VOH = 2.4V µA VIN = VDD µA VIN = 0V mA VOL = 0.4V mA VOH = 2.4V mA VOL = 0 ...
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... SCL t 300 HD;SDA t 300 SU;STO t 50 SU;DAT t HD;DAT t R Package Type 8-SOP Green Package Commercial, 0°C to +70°C 8-MSOP Green Package Commercial, 0°C to +70°C -15- F75393 SU;STO MAX. UNIT 300 nS Production Flow May, 2008 V0.16P ...
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... Package Dimensions F75393 (F75393 8-MSOP Package ) -16- F75393 May, 2008 V0.16P ...
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... BSC 1.27 BSC 6.20 5.80 0.228 0.244 0.10 0.004 0.40 1.27 0.016 0.050 (F75393 8-SOP Package) Taipei Office Bldg. K4, 7F, No.700, Chung Cheng Rd., Chungho City, Taipei, Taiwan 235, R.O.C. TEL : 866-2-8227-8027 FAX : 866-2-8227-8037 -17- F75393 0.25 GAUGE PLANE May, 2008 V0.16P ...
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... R4 = 10K I2C Address = 9Ch R4 = 20K I2C Address = 6Ch R4 = 30K I2C Address = 6Ah R4 = 47K I2C Address = 68h Title Feature Integration Technology Size Document Number Custom F75393 Application Circuit Date: Thursday , May 29, 2008 Sheet -18- SCLK SDATA Rev <Rev Code> May., 2008 V0.15P ...