f75385 Feature Integration Technology Inc., f75385 Datasheet
f75385
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f75385 Summary of contents
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... F75385M o ±1 C Accuracy Temperature Sensor IC Datasheet Release Date: July, 2006 Revision: V0.21P ...
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... F75385 Datasheet Revision History Version Date Page 0.20P March, 2006 - 0.21P July, 2006 10 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. LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury ...
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... Vendor ID I (Manufacturer ID) Register Index 5Eh ..................................................... 10 7.11 Vendor ID II (Manufacturer ID) Register Index FEh .................................................... 10 7.12 Value RAM Index 10h- 2Fh ........................................................................................ 10 8. Electrical characteristic.......................................................................................................... 12 8.1 Absolute Maximum Ratings .............................................................................................. 12 8.2 DC Characteristics ............................................................................................................ 12 8.3 AC Characteristics ............................................................................................................ 13 9. Ordering Information ............................................................................................................. 13 10. Package Dimensions (8 MSOP)............................................................................................ 14 F75385 -II- F75385 July, 2006 ...
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... General Description The F75385 is a temperature sensor IC with alert signal which is specific designed for notebook, graphic cards etc. An 11-bit analog-to-digital converter (ADC) was built inside F75385. The F75385 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 ...
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... C from + +100 o o ±3 C from + +100 8 SCL VCC SDA F75382 F75385M ALERT GND PWR DESCRIPTION 3VCC Power Pin 3VCC Positive connection to remote temperature sensor (ex: thermal diode anode) 3VCC Negative connection to remote temperature sensor(ex: thermal diode ...
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... Pin4 and pin6 act as warning message when the temperature exceeds it threshold point. 6.3 Access Interface The F75385 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 F75385 supports SMBus protocol of, “ ...
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... Start By Master Frame 1 Alert Response Address Figure 4. Alert Response Address 6.4 Temperature Monitoring The F75385 monitors a local and a remote temperature sensor. Both can be measured from 0°C to 145°C. The temperature format is as the following table: Temperature ( High Byte ) Digital Output 0°C 1°C 25° ...
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Remote-sensor transistor manufacturers Manufacturer Model Number Panasonic 2SB0709 2N3906 Philips PMBT3906 6.5 Alert# Five events can trigger ALERT# to low: (1). VT1(Local) temperature exceeds High Limit (2). VT1(Local) temperature goes below Low Limit (3). VT2(Remote) temperature exceeds High ...
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... Thermal mass effect can seriously degrade effective accuracy of the F75385. The thermal time constant of the SOP package is about 140 in still air. For the F75385 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 ...
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... Place the F75385 as close as practical to the remote sensing diode. In noisy environments, such as a computer main-board, the distance can inches. (typ). This length can be increased if the worst noise sources are avoided. Noise sources generally include clock generators, power control circuit, CRTs, memory buses and PCI/ISA bus etc ...
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Registers Description 7.1 Configuration Register Index 03h(Read), 09h(Write) Power on default <7:0> = 00h Bit Name Attribute 7 ALERT_MASK R/W 6 RUN_STOP R/W 5-0 Reserved 7.2 Status Register Index 02h Power on default <7:0> = 00h Bit ...
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... FFh Description When F75385 is at standby mode, writing any value to this register will initiate a single conversion and comparison cycle. After the single cycle, F75385 will returns to standby mode. Description Set to 1, enable serial interface timeout function. (Timeout time = 25ms) Set to 0, disable ...
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EN_ARA_STS R/W 7.7 Chip ID I Register Index 5Ah Power on default: 03h. 7.8 Chip ID II Register Index 5Bh Power on default: 03h. 7.9 Vendor ID I (Manufacturer ID) Register Index 5Dh Power on default: ...
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VT2 Low Limit R/W VT1 THERM Limit R/W VT1 THERM Hysteresis R/W VT2 THERM Limit R/W VT2 THERM Hysteresis R/W 08h 14h 0Eh (00h) (00h) 20h 20h (55h) 21h 21h (0Ah) 19h 19h (6Ch) 23h 23h (0Ah) -11- 14h July ...
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Electrical characteristic 8.1 Absolute Maximum Ratings PARAMETER Power Supply Voltage Input Voltage Operating Temperature Storage Temperature Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device 8.2 DC ...
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... SCL clock period Start condition hold time Stop condition setup-up time DATA to SCL setup time DATA to SCL hold time SCL and SDA rise time SCL and SDA fall time 9. Ordering Information Part Number Package Type 8 pin MSOP (Green Package) F75385M 0.5 0.8 1.1 V 1.6 2.0 2 µ µ ...
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... Package Dimensions (8 MSOP) Feature Integration Technology Inc. Headquaters 7F, No 31, Shintai Rd., Jubei City, Hsinchu 302, Taiwan, R.O.C. TEL : 886-3-6562727 FAX : 886-3-6560537 www: http://www.fintek.com.tw Please note that all datasheet and specifications are subject to change without notice. All the trade marks of products and companies mentioned in this datasheet belong to their respective owner Taipei Office Bldg ...