F75393 ±1oC Temperature Sensor with ß Compensation Release Date: May, 2008 Revision: V0.16P F75393 F75393 Datasheet Revision History Version Date Page Revision History V0.10P 2007/7/23 - Preliminary Version V0.11P 2007/9/20 - Add register description V0.12P 2007/11/5 - Remove DFN Package Information V0.13P 2008/1/25 - Modify Electrical characteristic V0.14P 2008/1/29 - Modify typo. V0.15P 2008/3/5 - Remove F75394 Part Number Add SMBus Address strapping selection function Add register index FA (SMBus Address strapping entry key) V0.16P 2008/5/29 5 Modify typo. of Chapter 6.4 for Temperature Range Table 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. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Fintek for any damages resulting from such improper use or sales. F75393 -I- May, 2008 V0.16P F75393 Table of Contents General Description................................................................................................................. 1 Features .................................................................................................................................. 1 Key Specifications ................................................................................................................... 2 Pin Configuration..................................................................................................................... 2 Pin Descriptions ...................................................................................................................... 2 Functional Description............................................................................................................. 3 6.1 General Description ......................................................................................................... 3 6.2 The warning message ..................................................................................................... 3 6.3 Access Interface .............................................................................................................. 3 6.4 Temperature Monitoring................................................................................................... 5 6.5 Alert# ............................................................................................................................... 5 6.6 THERM#.......................................................................................................................... 6 6.7 ADC Conversion Sequence............................................................................................. 6 6.8 Thermal Mass and Self Heating ...................................................................................... 6 6.9 ADC Noise Filtering ......................................................................................................... 7 6.10 Beta Compensation ......................................................................................................... 7 6.11 Resistor Cancelled Function............................................................................................ 8 6.12 PCB Layout Guide........................................................................................................... 8 7. Register Description ................................................................................................................ 9 1. 2. 3. 4. 5. 6. 7.1 Configuration Register Index 03h(Read), 09h(Write)................................................ 9 7.2 Status Register Index 02h ........................................................................................... 9 7.3 Conversion Rate Register Index 04h(Read), 0Ah(Write) .......................................... 10 7.4 One-Shot Register Index 0Fh ................................................................................... 10 7.5 Alert Queue & Timeout Register Index 22h............................................................... 10 7.6 Status-with-ARA Control Register Index 24h............................................................. 10 7.7 Beta Compensation RegisterIndex 3Bh ..................................................................... 11 7.8 Chip ID (MSB) RegisterIndex 5Ah ............................................................................. 11 7.9 Chip ID (LSB) Register Index 5Bh ............................................................................ 11 7.10 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- May, 2008 V0.16P F75393 8.2 DC Characteristics ............................................................................................................ 13 8.3 AC Characteristics ............................................................................................................ 15 9. Ordering Information ............................................................................................................. 15 10. Package Dimensions............................................................................................................. 16 11. Application Circuit.................................................................................................................. 18 F75393 -III- May, 2008 V0.16P F75393 1. General Description The F75393 is a temperature sensor IC with ß compensation and alert signal which is specific designed for notebook, graphic cards etc. 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 of CPU. The users can set up the upper and lower limits (alarm thresholds) of all monitored parameters and this chip can also issue warning messages for system protection when there is something wrong with monitored items. Through the BIOS or application software, the users can read all the monitored parameters of system all the time. And a pop-up warning can be also activated when the monitored item was out of the proper/pre-setting range. The application software could be Fintek's application utility, or other management application software. The F75393 provides SMBus address selection. This chip can be used more than 2 pcs on the same board by different SMBus address enter. The F75393 is in the green package of 8-pin MSOP/SOP and powered by 3.3V. 2. Features Provide 1 on-chip local and 1 remote temperature sensing ±1 oC accuarcy on remote channel and ±3 oC accuarcy on local channel o o o ◇ ±1 C (+60 C to +100 C, remote) o o o ◇ ±3 C (+60 C to +100 C, local) Support new generational CPU temperature sensing with ß compensation Resistor cancelled function ALERT# output for SMBus alert THERM# output for over temperature alert or for system shut down Programmable THERM# limits and THERM# hysteresis Programmable alert queue Programmable limited and setting points(alert threshold) for all monitored items 2 wire SMBus interface and 3VCC operation 8-MSOP Package – F75393M 8-SOP Package – F75393S The F75393 provides SMBus address ID option by resistor selection and they have the following SMBus slave address: (Default address is 98h) Noted: Patented TW 235231 TWI263778 F75393 -1- May, 2008 V0.16P F75393 Resistor 3. 4. 5. A6 A5 A4 A3 A2 A1 A0 1k 1 0 0 1 1 1 1 4.7k 1 0 0 1 1 0 1 10k 1 0 0 1 1 1 0 20k 0 1 1 0 1 1 0 30k 0 1 1 0 1 0 1 47k 0 1 1 0 1 0 0 Key Specifications Supply Voltage 3.0~3.6V Supply Current 180 uA (typ) Pin Configuration VCC 1 D+ 2 D- 3 THERM# 4 F75383 F75393 F75384 8 SCL 7 SDA 6 ALERT# 5 GND Pin Descriptions I/O12t - TTL level bi-directional pin with 12 mA source-sink capability I/O12ts - TTL level and schmitt trigger O12 - Output pin with 12 mA source-sink capability O24V4 - Output pin with 24 mA source-sink capability, output 4V AOUT - Output pin(Analog) OD12 - Open-drain output pin with 12 mA sink capability INt - TTL level input pin INts - TTL level input pin and schmitt trigger AIN F75393 - Input pin(Analog) -2- May, 2008 V0.16P F75393 PIN NO PIN NAME TYPE PWR DESCRIPTION PWR 3VCC Power Pin 1 VCC 2 D+ AIN 3VCC Positive connection to remote temperature sensor (ex: thermal diode anode) 3 D- AIN 3VCC Negative connection to remote temperature sensor(ex: thermal diode cathode) 4 THERM# OD12 3VCC Active LOW output. This pin will be logic low when the temperature exceeds its limit. 5 GND PWR 3VCC Ground 6 ALERT# OD12 3VCC Active LOW output. Used as SMBus alert or Interrupt 7 SDA INts/OD12 3VCC Serial bus data 8 SCL INt s 3VCC Serial bus clock 6. Functional Description 6.1 General Description The F75393 is a simple temperature sensor with warning signal output. It includes a local and a remote temperature sensor. Both measured temperature are compared with its high, low and THERM limits which are stored in the registers. When one or more out-of-limit events occur, the flags in Status Register will be set and that may cause ALERT output to low. Also, measured temperature exceeding THERM limit may cause THERM output to low. 6.2 The warning message Pin4 and pin6 act as warning message when the temperature exceeds it threshold point. 6.3 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. For detail information about PEC, please check SMBus 1.1 specification. F75393 supports 25ms timeout for no activity on the SMBus. This timeout function is programmed at 22h bit7 and default is disabled. F75393 also supports Alert Response Address (ARA) protocol. F75393 -3- May, 2008 V0.16P F75393 The operation of the protocol is described with details in the following sections. (a) SMBus write to internal address register followed by the data byte 0 7 8 0 7 8 SCL SDA 1 0 0 Start By Master 1 1 0 0 R/W D7 D6 Ack by 395 Frame 1 Serial Bus Address Byte D5 D4 D3 D2 D1 D0 Ack by 395 Frame 2 Internal Index Register Byte 0 7 8 SCL (Continued) SDA (Continued) D7 D6 D5 D4 D3 D2 D1 D0 Stop by Master Frame 3 Data Byte Figure 1. Serial Bus Write to Internal Address Register followed by the Data Byte (b) Serial bus write to internal address register only 0 7 8 0 7 8 SCL SDA 1 0 Start By Master 0 1 1 0 0 R/W D7 D6 Ack by 395 Frame 1 Serial Bus Address Byte D5 D4 D3 D2 D1 D0 Ack by 395 Frame 2 Internal Index Register Byte Stop by Master 0 Figure 2. Serial Bus Write to Internal Address Register Only (c) Serial bus read from a register with the internal address register prefer to desired location 0 7 8 0 7 8 SCL 1 SDA 0 Start By Master 0 1 1 0 0 R/W D7 D6 Ack by 395 Frame 1 Serial Bus Address Byte D5 D4 D3 D2 D1 D0 Ack by Master Frame 2 Internal Index Register Byte Stop by Master 0 Figure 3. Serial Bus Read from Internal Address Register (d) Alert Response Address 0 7 8 0 7 8 SCL R/W 0 SDA Start By Master 0 0 1 1 0 0 0 Ack by 395 Frame 1 Alert Response Address 1 0 0 1 Frame 2 Device Address 1 0 0 Ack by Master Stop by Master 0 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 F75393 -4- May, 2008 V0.16P F75393 entry key writing, the address will keep default value 98h. For example, use 30k resistor for address 6A selection. User need to write entry key to register CRFAh. Ex: Original chip default address is 98h Bus Access Byte Write (98, FA, 19) Bus Access Byte Write (98, FA, 34) Bus Access Byte Write (98, FA, 01) After Entry Key writing, Chip address will change to 6Ah. 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 ) Digital Output Temperature ( Low Byte ) Digital Output -40°C 1101 1000 -0.875°C 001 0 0000 -20°C 1110 1100 -0.325°C 110 0 0000 -1°C 1111 1111 -0.125°C 111 0 0000 0°C 0000 0000 0°C 000 0 0000 50°C 0011 0010 0.375°C 011 0 0000 75°C 0100 1011 0.500°C 100 0 0000 100°C 0110 0100 0.750°C 110 0 0000 127°C 0111 1111 0.875°C 111 0 0000 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 Limit (4). VT2(Remote) temperature goes below Low Limit (5). VT2(Remote) temperature is Open-circuit. F75393 -5- May, 2008 V0.16P F75393 These five events are wired-NOR together. This means that when one of out-of-limit event occurs, the ALERT# output goes low if the MASK control is disabled. ALERT# signal can be used as an IRQ-like interrupt or as an SMBALERT. When ALERT# acts as an IRQ-like interrupt, the ALERT# will be de-asserted until the following 2 conditions are matched: (1). The abnormal condition is gone (2). Reading the Status register to clear the status When ALERT# acts as a SMBALERT, the ALERT# will be de-asserted until the following 3 conditions are matched: (1). The abnormal condition is gone (2). Reading the Status register to clear the status (3). The ALERT# has been serviced by the SMBus master reading the device address. For more information about SMBALERT, please see SMBus 1.1 specification. 6.6 THERM# Either VT1(Local) or VT2(Remote) temperature exceeds the corresponding THERM limit, the THERM# output will assert low. The asserted output will be de-asserted until the temperature goes below (THERM Limit – Hysteresis). The hysteresis default value is 10°C and it can be programmed. Both VT1 and VT2 have their own THERM limits and Hysteresis values. 6.7 ADC Conversion Sequence If a START command is written, both channels are converted and the results of both measurements are available after the end of conversion. A BUSY status bit in the status byte shows that the device is actually performing a new conversion; however, even if the ADC is busy, the results of the previous conversion are always available. 6.8 Thermal Mass and Self Heating 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. Sel-heating does not significantly affect measurement accuracy. Remote sensor self-heating due to the diode current source is negligible. For the local diode, the worst case error occurs when auto-converting at the fastest rate and simultaneously sinking maximum current at the ALERT# output. For instance, at an 64Hz rate and ALERT# sink around 0.7mA when pull up resistor 4.7K ohm to 3.3VCC, the typical power dissipation is VCC x 220 uA plus 0.4V x 0.7mA. Package θJA is about 120 °C/W, so with VCC = 3.3V and no copper PC board heat-sinking, the resulting temperature rise is: dT = 1.01mW x 120 °C/W = 0.12 °C Even with these contrived circumstances, it is difficult to introduce significant self-heating errors. F75393 -6- May, 2008 V0.16P F75393 6.9 ADC Noise Filtering The ADC is integrating type with inherently good noise rejection. Micro-power operation places constraints on high-frequency noise rejection; therefore, careful PCB board layout and suitable external filtering are required for high-accuracy remote measurement in electronically noisy environment. High frequency EMI is best filtered at D+ and D- with an external 2200pF capacitor. Too high capacitance may introduce errors due to the rise time of the switched current source. 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. D+ D+ D- D- Substrate PNP transistor i.e. CPU Discrete PNP transistor i.e. 2N3906 The basic of the temperature sensor follows mathematical formula as below: ∆VBE 1 + β1 Ic β1 1 KT Ie1 KT = × ln = × ln q Ie2 q 1 + β2 Ic 2 β2 The F75393 measures temperature from the thermal diodes by the basic. In traditional case, the F75393 outputs dual currents to a thermal diode. Then the F75393 calculates the absolute temperature by △VBE. For discrete transistor (i.e. 2N3906), the beta is normally very high such that the percent change in beta is very small. For example, 15% variation in beta for two forced IE currents and the beta is 50 would contribute about 0.32℃ error per 100℃. For Substrate PNP transistor (i.e. CPU), the beta is very small such that the proportional beta variation will very high, and it will cause large error in temperature measurement. For example, 15% variation in beta for two forced IE currents and the beta is 0.5 would contribute about 11.12℃ error per 100℃. In Order to solve the second issue, the F75393 provides a beta compensation solution for accurate temperature sensing. There is a register (CR30h bit7) for external thermal diode selection by Beta variation. If this bit is enabled, the beta compensation will automate to measure the temperature from substrate transistor (i.e. CPU). The F75393 can support the beta range from 0.05~1.8 for beta compensation. In this new method, the F75393 will provide two IE currents, and feedback two IB currents. The F75393 will F75393 -7- May, 2008 V0.16P F75393 auto-adjust IE (IE1 and IE2) current and feedback IB (IB1 and IB2) promptly for getting proper IC proportion (IC1/ IC2), then calculates the accurate temperature. This algorithm of beta compensation is suitable for substrate transistor or new generational CPU (i.e. 45nm CPU) because small beta and high proportional beta variation. The default value of register CR3Bh bit7 is enabled for measure substrate transistor. If user would like to detect discrete transistor and the beta is big enough, please disable this bit for detecting. About this section application, please refer the register description for detail. 6.11 Resistor Cancelled Function 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. Place the F75393 as close as practical to the remote sensing diode. In noisy environments, such as a computer main-board, the distance can be 4 to 8 inches. (typ). This length can be increased if the worst noise sources are avoided. Noise sources generally include clock generators, CRTs, memory buses and PCI/ISA bus etc. 2. Route the D+ and D- tracks close together, in parallel, with grounded guard tracks on each side. Provide a ground plane under the tracks if possible. Do not route D+ & D- lines next to the deflection coil of the CRT. And also don’t route the trace across fast digital signals which can easily induce bigger error. GND 10MILS DXP 10MILS DXN 10MILS MINIMUM 10MILS GND 3. Use wide tracks to minimize inductance and reduce noise pickup. 10 mil track minimum width and spacing is recommended. 4. Try to minimize the number of copper/solder joints, which can cause thermocouple effects. Where copper/solder joints are used, make sure that they are in both the D+ and D- path and at the same temperature. Thermocouple effects should not be a major problem as 1℃ corresponds to about 200µV. It means that a copper-solder thermocouple exhibits 3µV/℃, and takes about 200µV of the voltage error at D+ & D- to cause a 1℃ measurement error. Adding a few thermocouples causes a negligible error. 5. Place a 0.1µF bypass capacitor close to the VCC pin. In very noisy environments, place an external 2200pF input filter capacitors across D+, D- close to the F75393. F75393 -8- May, 2008 V0.16P F75393 6. If the distance to the remote sensor is more than 8 inches, the use of twisted pair cable is recommended. It will work up to around 6 to 12 feet. 7. Because the measurement technique uses switched current sources, excessive cable and/or filter capacitance will affect the measurement accuracy. When using long cables, the filter capacitor may be reduced or removed. Cable resistance can also induce errors. 1 Ω series resistance introduces about 0.5℃ error. 7. Register Description 7.1 Configuration Register Index 03h(Read), Bit Name 7 ALERT_MASK R/W 0 Set to 1, mask ALERT# signal output. 6 RUN_STOP R/W 0 Set to 0, monitor. Set to 1, stop monitor (power down mode). 5-1 Reserved RO 0 Reserved, always return 0. 0 PWR_DON R/W 0 Power down this device. 7.2 Status Register Index 02h Bit Name R/W Default 09h(Write) Description R/W Default Description 7 ADC_BUSY RO 0 Set to 1, ADC is converting. 6 VT1HIGH RO 0 Set to 1, VT1 temperature exceeds high limit. Set to 0, VT1 temperature does not exceed high limit. 5 VT1LOW RO 0 Set to 1, VT1 temperature goes below low limit. Set to 0, VT1 temperature does not goes below low limit. 4 VT2HIGH RO 0 Set to 1, VT2 temperature exceeds high limit. Set to 0, VT2 temperature does not exceed high limit. 3 VT2LOW RO 0 Set to 1, VT2 temperature goes below low limit. Set to 0, VT2 temperature does not goes below low limit. 2 OPEN RO 0 Set to 1, VT2 is open-circuit. 1 VT2THERM RO 0 Set to 1, VT2 temperature exceeds its THERM limit. 0 VT1THERM RO 0 Set to 1, VT1 temperature exceeds its THERM limit. VT1 (Local); VT2 (Remote) F75393 -9- May, 2008 V0.16P F75393 7.3 Conversion Rate Register Index 04h(Read), 0Ah(Write) Bit Name 7-0 CONV_RATE 7.4 Bit 7-0 R/W Default R/W 08h Description Set conversion times per second. Value Conversion/Sec Value Conversion/Sec 00h 0.0625 06h 4 01h 0.125 07h 8 02h 0.25 08h 16 03h 0.5 09h 32 04h 1 0Ah 64 05h 2 0Bh ~ FFh Reserved One-Shot Register Index 0Fh Name ONE-SHOT R/W Default WO xxh Description When chip is at standby mode, writing any value to this register will initiate a single conversion and comparison cycle. After the single cycle, chip will returns to standby mode. 7.5 Bit Alert Queue & Timeout Register Index 22h Name R/W Default 7 EN_I2CTMOUT R/W 0 6-4 Reserved RO 0 3-1 ALERT_QUEUE R/W 0 0 Reserved RO 1 7.6 Bit 7-1 F75393 Description Set to 1, enable serial interface timeout function. (Timeout time = 25ms) 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 Always read 1. Status-with-ARA Control Register Index 24h Name Reserved R/W Default RO 0 Description Reserved -10- May, 2008 V0.16P F75393 0 EN_ARA_STS R/W 1 Set to 1, ALERT de-asserted condition is related with ARA. Set to 0, ALERT de-asserted condition is not related with ARA(Alert Response Address). 7.7 Beta Compensation RegisterIndex 3Bh Bit 7 Name BETA_EN R/W Default R/W 1 Description 1: Enable beta compensation function. 0: Disable beta compensation function. 6 BIAS_SEL R/W 0 0: DN pad BIAS voltage 150mV 1: DN pad BIAS voltage 220mV 5-4 Reserved R/W 0h Dummy registers. 3 R_CANCELLED R/W 1 1: Enable resister cancelled function. 0: Disable register cancelled function. 2-0 Reserved 7.8 Name F_CHIP_ID Bit Name F_CHIP_ID 7.10 Bit 7-0 7-0 F75393 R/W Default RO 07h Description Fintek Chip ID 1 R/W Default RO 07h Description Fintek Chip ID 2 Fintek Vendor ID (MSB) (Manufacturer ID) Register Index 5Dh Name F_VENDOR_ID 7.11 Bit Dummy registers. Chip ID (LSB) Register Index 5Bh 7.9 7-0 2h Chip ID (MSB) RegisterIndex 5Ah Bit 7-0 R/W R/W Default RO 19h Description Fintek Vendor ID 1 Fintek Vendor ID (LSB) (Manufacturer ID) Register Index 5Eh Name F_VENDOR_ID R/W Default RO 34h Description Fintek Vendor ID 2 -11- May, 2008 V0.16P F75393 7.12 SMBus Address Entry Key Register Index FAh Bit 7 Name SOFT_RST 6-0 SMBus 7.13 Name VENDOR_ID 7.14 RO 0h RO 3Fh Description Always return 0 Write 19hÆ 34h Æ 01h Entry key for address selection. Fintek Vendor ID II (Manufacturer ID) RegisterIndex FEh Bit 7-0 R/W Default R/W Default R/W 23h Description Vendor ID Value RAM Index 10h- 2Fh VT1 : Local Temperature VT2 : Remote Temperature The value in quota is its power-on default value. Read Read Write Address Address Address (High Byte) (Low Byte) Write Address Description Attribute (Low Byte) (High Byte) VT1 reading RO 00h 1Ah VT2 reading RO 01h 10h VT1 High Limit R/W 05h (55h) 1Bh (00h) 0Bh 1Bh VT1 Low Limit R/W 06h (00h) 1Ch (00h) 0Ch 1Ch VT2 High Limit R/W 07h (55h) 13h (00h) 0Dh 13h VT2 Low Limit R/W 08h (00h) 14h (00h) 0Eh 14h VT1 THERM limit R/W 20h (55h) 20h VT1 THERM Hysteresis R/W 21h (0Ah) 21h VT2 THERM limit R/W 19h (55h) 19h VT2 THERM Hysteresis R/W 23h (0Ah) 23h VT1 Offset R/W 1Dh (00h) 1Eh (00h) 1Dh 1Eh VT2 Offset R/W 11h (00h) 12h (00h) 11h 12h F75393 -12- May, 2008 V0.16P F75393 8. Electrical characteristic 8.1 Absolute Maximum Ratings PARAMETER RATING UNIT -0.5 to 5.5 V -0.5 to VDD+0.5 V 0 to 70 °C -55 to 150 °C 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 Characteristics (TA = 0° C to 70° C, VDD = 3.3V ± 10%, VSS = 0V ) Parameter Temperature Error, Remote Diode Conditions MIN 60 oC < TD < 100 oC, VCC = 3.0V to 3.6V o o o Temperature Error, Local Diode o o 0 C < TA < 100 C, VCC = 3.0V to 3.6V Supply Voltage range Average operating supply current 3.0 ±1 ±3 3.3 3.6 C o C V uA 0.0625 Conversions / Sec Rate 180 uA 5 uA o 0.125 VDD input, Disables ADC , Rising Edge Power on reset threshold F75393 ±3 o 280 Resolution Diode source current ±1 Unit 16 Conversions / Sec Rate Standby supply current Under-voltage lockout threshold MAX ±1 -40 C <TD < 60 C, 100 C <TD < 127 C o TYP 2.55 2.2 C V 2.4 V High Level 95 uA Low Level 10 uA -13- May, 2008 V0.16P F75393 (TA = 0° C to 70° C, VDD = 3.3V ± 10%, VSS = 0V) PARAMETER SYM. MIN. TYP. MAX. UNIT CONDITIONS I/O12t - TTL level bi-directional pin with source-sink capability of 12 mA Input Low Voltage VIL 0.8 Input High Voltage VIH 2.0 Output Low Current IOL 10 Output High Current IOH Input High Leakage Input Low Leakage V V 12 mA VOL = 0.4V -10 mA VOH = 2.4V ILIH +1 µA VIN = VDD ILIL -1 µA VIN = 0V -12 I/O12ts - TTL level bi-directional pin with source-sink capability of 12 mA and schmitt-trigger level input Input Low Threshold Voltage Vt- 0.5 0.8 1.1 V VDD = 3.3 V Input High Threshold Voltage Vt+ 1.6 2.0 2.4 V VDD = 3.3 V Output Low Current IOL 10 12 mA VOL = 0.4 V Output High Current IOH -10 mA VOH = 2.4V Input High Leakage ILIH +1 µA VIN = VDD Input Low Leakage ILIL -1 µA VIN = 0V mA VOL = 0.4V mA VOH = 2.4V mA VOL = 0.4V -12 OUT12t - TTL level output pin with source-sink capability of 12 mA Output Low Current IOL Output High Current IOH 12 16 -14 -12 OD16 - Open-drain output pin with sink capability of 16 mA Output Low Current INts - IOL 12 16 TTL level Schmitt-triggered input pin Input Low Threshold Voltage Vt- 0.5 0.8 1.1 V VDD = 3.3V Input High Threshold Voltage Vt+ 1.6 2.0 2.4 V VDD = 3.3V Input High Leakage ILIH +1 µA VIN = VDD Input Low Leakage ILIL -1 µA VIN = 0 V F75393 -14- May, 2008 V0.16P F75393 8.3 AC Characteristics t SCL t t R R SCL t HD;SDA t t SU;DAT SU;STO SDA IN VALID DATA t HD;DAT SDA OUT Serial Bus Timing Diagram Serial Bus Timing PARAMETER SYMBOL MIN. t-SCL 2 uS Start condition hold time tHD;SDA 300 nS Stop condition setup-up time tSU;STO 300 nS DATA to SCL setup time tSU;DAT 50 nS DATA to SCL hold time tHD;DAT 5 nS SCL and SDA rise time tR SCL clock period MAX. 300 UNIT nS 9. Ordering Information F75393 Part Number Package Type Production Flow F75393S 8-SOP Green Package Commercial, 0°C to +70°C F75393M 8-MSOP Green Package Commercial, 0°C to +70°C -15- May, 2008 V0.16P F75393 10. Package Dimensions (F75393 8-MSOP Package ) F75393 -16- May, 2008 V0.16P F75393 8 5 c E HE L 4 1 0.25 D O A Y e SEATING PLANE GAUGE PLANE A1 b Control demensions are in milmeters . SYMBOL A A1 b c E D e HE Y L θ DIMENSION IN MM MIN. MAX. 1.35 1.75 0.10 0.25 0.33 0.51 0.19 0.25 3.80 4.00 4.80 5.00 1.27 BSC 6.20 5.80 0.10 1.27 0.40 0 10 DIMENSION IN INCH MIN. MAX. 0.053 0.069 0.010 0.004 0.013 0.020 0.008 0.010 0.150 0.157 0.188 0.196 0.050 BSC 0.228 0.016 0 0.244 0.004 0.050 10 (F75393 8-SOP Package) Feature Integration Technology Inc. Headquarters Taipei Office 3F-7, No 36, Tai Yuan St., Bldg. K4, 7F, No.700, Chung Cheng Rd., Chupei City, Hsinchu, Taiwan 302, R.O.C. Chungho City, Taipei, Taiwan 235, R.O.C. TEL : 886-3-5600168 TEL : 866-2-8227-8027 FAX : 886-3-5600166 FAX : 866-2-8227-8037 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 F75393 -17- May, 2008 V0.16P 11. Application Circuit Example 1 : VCC3V TEMPERATURE MONITOR (CPU THERMAL DIODE) D+ THERDA THERDC C1 2200pF D+ C3 0.1u R1 4.7K R2 4.7K R3 4.7K R4 R U1 Example D+ D- 2 : TEMPERATURE MONITOR (2N3906) 1 2 3 4 VCC SCL D+ SDA DALERT# THERM# GND 8 7 6 5 SCLK SDATA F75393 1 D+ Q1A 2N3906 2 C2 2200pF Address Trapping : D+ 3 ALERT#(PIN6)Pull-up Resistor R4 R4 R4 R4 R4 R4 = = = = = = 1K 4.7K 10K 20K 30K 47K I2C I2C I2C I2C I2C I2C Address Address Address Address Address Address = = = = = = 9Eh 98h 9Ch 6Ch 6Ah 68h Title Feature Integration Technology Size Document Number CustomF75393 Application Circuit Date: -18- Thursday , May 29, 2008 Rev <Rev Code> Sheet 1 of 1 May., 2008 V0.15P