F75393S [FINTEK]
±1oC Temperature Sensor with ß Compensation; ± 1℃温度传感器与SS补偿
| 型号： | F75393S |
| 厂家： | 
FEATURE INTEGRATION TECHNOLOGY INC. |
| 描述： | ±1oC Temperature Sensor with ß Compensation |
| 文件： | 总22页 (文件大小：690K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
F75393
±1oC Temperature Sensor with ß Compensation
Release Date: May, 2008
Revision: V0.16P
F75393
F75393 Datasheet Revision History
Version
V0.10P
V0.11P
V0.12P
V0.13P
V0.14P
V0.15P
Date
Page
Revision History
2007/7/23
2007/9/20
2007/11/5
2008/1/25
2008/1/29
2008/3/5
-
-
-
-
-
-
Preliminary Version
Add register description
Remove DFN Package Information
Modify Electrical characteristic
Modify typo.
Remove F75394 Part Number
Add SMBus Address strapping selection function
Add register index FA (SMBus Address strapping entry key)
Modify typo. of Chapter 6.4 for Temperature Range Table
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.
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.
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Table of Contents
1. General Description................................................................................................................. 1
2. Features.................................................................................................................................. 1
3. Key Specifications................................................................................................................... 2
4. Pin Configuration..................................................................................................................... 2
5. Pin Descriptions ...................................................................................................................... 2
6. 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
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
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8.2 DC Characteristics............................................................................................................ 13
8.3 AC Characteristics ............................................................................................................ 15
9. Ordering Information ............................................................................................................. 15
10.Package Dimensions............................................................................................................. 16
11. Application Circuit.................................................................................................................. 18
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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
◇±1 oC (+60 oC to +100 oC, remote)
◇ ±3 oC (+60 oC to +100 oC, 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
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Resistor
1k
A6
1
A5
0
A4
0
A3
1
A2
1
A1
1
A0
1
4.7k
1
0
0
1
1
0
1
1
0
0
1
1
1
0
10k
0
0
0
1
1
1
1
1
1
0
0
0
1
1
1
1
0
0
0
1
0
20k
30k
47k
3. Key Specifications
Supply Voltage
Supply Current
3.0~3.6V
180 uA (typ)
4. Pin Configuration
8
7
SCL
VCC
D+
1
2
F75383
F75393
SDA
D-
3
4
6
5
ALERT#
GND
THERM#
5. Pin Descriptions
I/O12t
I/O12ts
O12
- TTL level bi-directional pin with 12 mA source-sink capability
- TTL level and schmitt trigger
- Output pin with 12 mA source-sink capability
- Output pin with 24 mA source-sink capability, output 4V
O24V4
AOUT - Output pin(Analog)
OD12
INt
- Open-drain output pin with 12 mA sink capability
- TTL level input pin
INts
- TTL level input pin and schmitt trigger
- Input pin(Analog)
AIN
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PIN NO
PIN NAME
VCC
TYPE
PWR
AIN
PWR
3VCC
3VCC
3VCC
DESCRIPTION
1
2
3
Power Pin
D+
D-
Positive connection to remote temperature sensor (ex: thermal diode anode)
Negative connection to remote temperature sensor(ex: thermal diode
AIN
cathode)
4
THERM#
3VCC
Active LOW output. This pin will be logic low when the temperature exceeds
OD12
its limit.
5
6
7
8
GND
3VCC
3VCC
3VCC
3VCC
Ground
PWR
OD12
ALERT#
SDA
Active LOW output. Used as SMBus alert or Interrupt
Serial bus data
INts/OD12
INts
SCL
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.
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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
1
1
0
0
R/W
D7
D6
D5
D4
D3
D2
D1
D0
Start By
Master
Ack
Ack
by
395
by
Frame 1
Frame 2
395
Serial Bus Address Byte
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
1
7
8
0
7
8
SCL
SDA
0
0
1
1
0
0
R/W
D7
D6
D5
D4
D3
D2
D1
D0
Start By
Master
Ack
by
395
Stop by
Master
Ack
by
395
Frame 1
Serial Bus Address Byte
Frame 2
Internal Index Register Byte
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
SDA
1
0
0
1
1
0
0
R/W
D7
D6
D5
D4
D3
D2
D1
D0
Start By
Master
Ack
by
Master
Ack
by
395
Stop by
Master
Frame 1
Serial Bus Address Byte
Frame 2
Internal Index Register Byte
0
Figure 3. Serial Bus Read from Internal Address Register
(d) Alert Response Address
0
7
8
0
0
7
0
8
SCL
R/W
SDA
0
0
0
1
1
0
0
1
0
0
1
1
0
Start By
Master
Ack
by
Master
Ack
by
395
Stop by
Master
Frame 1
Alert Response Address
Frame 2
Device Address
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
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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
1101 1000
1110 1100
1111 1111
Temperature ( Low Byte )
-0.875°C
Digital Output
001 0 0000
110 0 0000
111 0 0000
000 0 0000
011 0 0000
100 0 0000
110 0 0000
111 0 0000
-40°C
-20°C
-1°C
-0.325°C
-0.125°C
0°C
0000 0000
0011 0010
0100 1011
0110 0100
0111 1111
0°C
50°C
75°C
100°C
127°C
0.375°C
0.500°C
0.750°C
0.875°C
Remote-sensor transistor manufacturers
Manufacturer
Panasonic
Philips
Model Number
2SB0709 2N3906
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.
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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.
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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:
1+ β
1
Ic1
β1
KT
q
Ie
KT
q
1
∆VBE
=
× ln
=
× ln
Ie2
1+ β
2
Ic2
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
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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
MINIMUM
DXN
10MILS
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.
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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), 09h(Write)
Bit
7
Name
R/W Default
Description
0
0
0
0
ALERT_MASK
RUN_STOP
R/W
R/W
RO
Set to 1, mask ALERT# signal output.
6
Set to 0, monitor. Set to 1, stop monitor (power down mode).
Reserved, always return 0.
5-1
0
Reserved
Power down this device.
PWR_DON
R/W
7.2
Status Register Index 02h
Bit
7
Name
R/W Default
Description
Set to 1, ADC is converting.
0
0
ADC_BUSY
VT1HIGH
RO
RO
6
Set to 1, VT1 temperature exceeds high limit.
Set to 0, VT1 temperature does not exceed high limit.
Set to 1, VT1 temperature goes below low limit.
Set to 0, VT1 temperature does not goes below low limit.
Set to 1, VT2 temperature exceeds high limit.
Set to 0, VT2 temperature does not exceed high limit.
Set to 1, VT2 temperature goes below low limit.
Set to 0, VT2 temperature does not goes below low limit.
Set to 1, VT2 is open-circuit.
0
0
0
5
4
3
VT1LOW
VT2HIGH
VT2LOW
OPEN
RO
RO
RO
RO
0
0
0
2
1
0
VT2THERM RO
VT1THERM RO
Set to 1, VT2 temperature exceeds its THERM limit.
Set to 1, VT1 temperature exceeds its THERM limit.
VT1 (Local); VT2 (Remote)
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7.3
Conversion Rate Register Index 04h(Read), 0Ah(Write)
Bit
Name
R/W Default
Description
Set conversion times per second.
08h
7-0
CONV_RATE
R/W
Value
00h
01h
02h
03h
04h
05h
Conversion/Sec
Value
06h
07h
08h
09h
0Ah
Conversion/Sec
4
8
16
32
64
0.0625
0.125
0.25
0.5
1
2
0Bh ~ FFh Reserved
7.4
One-Shot Register Index 0Fh
Bit
Name
R/W Default
Description
xxh
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.
7-0
ONE-SHOT
WO
7.5
Alert Queue & Timeout Register Index 22h
Bit
Name
R/W Default
Description
0
7
EN_I2CTMOUT
R/W
Set to 1, enable serial interface timeout function. (Timeout time =
25ms)
Set to 0, disable.
0
0
6-4 Reserved
RO
3-1 ALERT_QUEUE
R/W
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.
1
0
Reserved
RO
7.6
Status-with-ARA Control Register Index 24h
Bit
Name
R/W Default
Description
0
7-1 Reserved
RO
Reserved
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1
0
EN_ARA_STS
R/W
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
Name
BETA_EN
R/W Default
Description
1: Enable beta compensation function.
0: Disable beta compensation function.
0: DN pad BIAS voltage 150mV
1
7
R/W
0
6
BIAS_SEL
R/W
1: DN pad BIAS voltage 220mV
0h
1
5-4 Reserved
R/W
R/W
Dummy registers.
3
R_CANCELLED
1: Enable resister cancelled function.
0: Disable register cancelled function.
Dummy registers.
2h
2-0 Reserved
R/W
7.8
Chip ID (MSB) RegisterIndex 5Ah
Bit
Name
R/W Default
07h
Fintek Chip ID 1
Description
Description
7-0 F_CHIP_ID
RO
7.9
Chip ID (LSB) Register Index 5Bh
Bit
Name
R/W Default
07h
Fintek Chip ID 2
7-0 F_CHIP_ID
RO
7.10 Fintek Vendor ID (MSB) (Manufacturer ID) Register Index 5Dh
Bit
Name
R/W Default
19h
Description
7-0 F_VENDOR_ID
RO
Fintek Vendor ID 1
7.11 Fintek Vendor ID (LSB) (Manufacturer ID) Register Index 5Eh
Bit
Name
R/W Default
34h
Description
7-0 F_VENDOR_ID
RO
Fintek Vendor ID 2
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7.12 SMBus Address Entry Key Register Index FAh
Bit
7
Name
R/W Default
Description
SOFT_RST
RO
RO
0h
Always return 0
6-0 SMBus
3Fh Write 19hÆ 34h Æ 01h Entry key for address selection.
7.13 Fintek Vendor ID II (Manufacturer ID) RegisterIndex FEh
Bit
Name
R/W Default
23h
Description
7-0 VENDOR_ID
R/W
Vendor ID
7.14 Value RAM Index 10h- 2Fh
VT1 : Local Temperature
VT2 : Remote Temperature
The value in quota is its power-on default value.
Read
Read
Write
Write Address
(Low Byte)
Description
Attribute
Address
(High Byte)
00h
Address
(Low Byte)
1Ah
Address
(High Byte)
VT1 reading
RO
RO
VT2 reading
01h
10h
VT1 High Limit
VT1 Low Limit
VT2 High Limit
VT2 Low Limit
R/W
R/W
R/W
R/W
05h (55h)
06h (00h)
07h (55h)
08h (00h)
1Bh (00h)
1Ch (00h)
13h (00h)
14h (00h)
0Bh
0Ch
0Dh
0Eh
1Bh
1Ch
13h
14h
VT1 THERM limit
R/W
R/W
R/W
R/W
20h (55h)
21h (0Ah)
19h (55h)
23h (0Ah)
20h
21h
19h
23h
VT1 THERM Hysteresis
VT2 THERM limit
VT2 THERM Hysteresis
VT1 Offset
VT2 Offset
R/W
R/W
1Dh (00h)
11h (00h)
1Eh (00h)
12h (00h)
1Dh
11h
1Eh
12h
F75393
-12-
May, 2008
V0.16P
F75393
8. Electrical characteristic
8.1 Absolute Maximum Ratings
PARAMETER
RATING
UNIT
V
Power Supply Voltage
Input Voltage
-0.5 to 5.5
-0.5 to VDD+0.5
0 to 70
V
Operating Temperature
Storage Temperature
° C
° C
-55 to 150
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
Conditions
MIN
TYP
± 1
± 1
± 1
3.3
280
180
5
MAX Unit
Temperature Error, Remote Diode
60 oC < TD < 100 oC, VCC = 3.0V to 3.6V
-40 oC <TD < 60oC, 100 oC <TD < 127oC
0 oC < TA < 100 oC, VCC = 3.0V to 3.6V
oC
± 3
Temperature Error, Local Diode
Supply Voltage range
oC
± 3
3.0
3.6
V
Average operating supply current
16 Conversions / Sec Rate
uA
uA
uA
oC
V
0.0625 Conversions / Sec Rate
Standby supply current
Resolution
0.125
2.55
2.2
95
Under-voltage lockout threshold
Power on reset threshold
Diode source current
VDD input, Disables ADC , Rising Edge
2.4
V
High Level
Low Level
uA
uA
10
F75393
-13-
May, 2008
V0.16P
F75393
(TA = 0° C to 70° C, VDD = 3.3V ± 10%, VSS = 0V)
PARAMETER SYM. MIN.
I/O12t - TTL level bi-directional pin with source-sink capability of 12 mA
TYP.
MAX.
UNIT
CONDITIONS
Input Low Voltage
Input High Voltage
Output Low Current
Output High Current
Input High Leakage
Input Low Leakage
VIL
VIH
IOL
IOH
ILIH
ILIL
0.8
V
2.0
10
V
12
mA
mA
µA
µA
VOL = 0.4V
VOH = 2.4V
VIN = VDD
VIN = 0V
-12
-10
+1
-1
I/O12ts - TTL level bi-directional pin with source-sink capability of 12 mA and schmitt-trigger level input
Input Low Threshold Voltage
Input High Threshold Voltage
Output Low Current
Vt-
Vt+
IOL
IOH
ILIH
ILIL
0.5
1.6
10
0.8
2.0
12
1.1
2.4
V
VDD = 3.3 V
VDD = 3.3 V
VOL = 0.4 V
VOH = 2.4V
VIN = VDD
VIN = 0V
V
mA
mA
µA
µA
Output High Current
-12
-10
+1
-1
Input High Leakage
Input Low Leakage
OUT12t - TTL level output pin with source-sink capability of 12 mA
Output Low Current
Output High Current
IOL
12
16
mA
mA
VOL = 0.4V
VOH = 2.4V
IOH
-14
-12
OD16 - Open-drain output pin with sink capability of 16 mA
Output Low Current
IOL
12
16
mA
VOL = 0.4V
INts TTL level Schmitt-triggered input pin
-
Input Low Threshold Voltage
Input High Threshold Voltage
Input High Leakage
Vt-
Vt+
ILIH
ILIL
0.5
1.6
0.8
2.0
1.1
2.4
+1
-1
V
V
VDD = 3.3V
VDD = 3.3V
VIN = VDD
VIN = 0 V
µA
µA
Input Low Leakage
F75393
-14-
May, 2008
V0.16P
F75393
8.3 AC Characteristics
t
t
SCL
R
t
R
SCL
t
t
SU;STO
t
SU;DAT
HD;SDA
SDA IN
VALID DATA
t
HD;DAT
SDA OUT
Serial Bus Timing Diagram
Serial Bus Timing
PARAMETER
SYMBOL
t-SCL
MIN.
2
MAX.
UNIT
uS
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
tHD;SDA
tSU;STO
tSU;DAT
tHD;DAT
tR
300
300
50
nS
nS
nS
5
nS
300
nS
9. Ordering Information
Part Number
F75393S
F75393M
Package Type
Production Flow
8-SOP Green Package
8-MSOP Green Package
Commercial, 0°C to +70°C
Commercial, 0°C to +70°C
F75393
-15-
May, 2008
V0.16P
F75393
10.Package Dimensions
(F75393 8-MSOP Package )
F75393
-16-
May, 2008
V0.16P
F75393
8
c
5
E
HE
L
1
4
O
0.25
D
A
Y
e
SEATING PLANE
GAUGE PLANE
A1
b
Control demensions are in milmeters .
DIMENSION IN MM
DIMENSION IN INCH
SYMBOL
MIN.
1.35
MAX.
MIN.
MAX.
0.053
0.069
0.010
0.020
A
A1
b
1.75
0.10
0.33
0.19
0.25
0.51
0.004
0.013
c
0.25
0.008
0.150
0.188
0.010
0.157
0.196
3.80
4.80
E
D
4.00
5.00
e
0.050 BSC
1.27 BSC
6.20
0.10
1.27
10
HE
Y
5.80
0.228
0.244
0.004
0.40
0
0.016
0
0.050
10
L
θ
(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.,
Chungho City, Taipei, Taiwan 235, R.O.C.
TEL : 866-2-8227-8027
Chupei City, Hsinchu, Taiwan 302, R.O.C.
TEL : 886-3-5600168
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+
C3
THERDA
0.1u
C1
D+
2200pF
R1
R2
R3
R4
R
THERDC
4.7K
4.7K 4.7K
U1
1
8
7
6
5
SCLK
VCC
D+
SCL
SDA
D+
2
3
4
SDATA
Example 2 :
D-
D-
ALERT#
GND
THERM#
TEMPERATURE MONITOR (2N3906)
F75393
D+
Q1A
2N3906
2
C2
Address Trapping :
ALERT#(PIN6)Pull-up Resistor
D+
2200pF
R4 = 1K
I2C Address = 9Eh
R4 = 4.7K I2C Address = 98h
R4 = 10K
R4 = 20K
R4 = 30K
R4 = 47K
I2C Address = 9Ch
I2C Address = 6Ch
I2C Address = 6Ah
I2C Address = 68h
Title
Size
Feature Integration Technology
Document Number
Rev
<RevCode>
CustomF75393 Application Circuit
Date:
Thursday , May 29, 2008
Sheet
1
of
1
May., 2008
V0.15P
-18-
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F75X
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