TCN75AVOA Microchip Technology, TCN75AVOA Datasheet
TCN75AVOA
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TCN75AVOA Summary of contents
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... TCN75A © 2005 Microchip Technology Inc. Description Microchip Technology Inc.’s TCN75A digital tempera- ture sensor converts temperatures between -40°C and +125° digital word, with ±1.5°C (typ.) accuracy. The TCN75A product comes with user-programmable registers that provide flexibility for temperature-sensing applications ...
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... RES Unit Conditions V µA Continuous operation µA Shutdown mode V V falling edge DD ° 3.3V DD ° 3.3V DD ° 3. samples/sec (typ samples/sec (typ samples/sec (typ samples/sec (typ.) µ Time to 63% (89°C) 27°C (air) to 125°C (oil bath) © 2005 Microchip Technology Inc. ...
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... Low-level Current I OL Capacitance C IN SDA and SCLK Inputs Hysteresis V HYST Graphical Symbol Description INPUT Voltage time Current I IN time © 2005 Microchip Technology Inc. = 2.7V to 5.5V, GND = Ground and DD Min Typ Max Units 0.7 V — — — — 0 — +1 µA — ...
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TCN75A DS21935A-page 4 © ...
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... DD FIGURE 2-1: Average Temperature Accuracy vs. Ambient Temperature, V FIGURE 2-2: Average Temperature Accuracy vs. Ambient Temperature. FIGURE 2-3: Average Temperature Accuracy vs. Ambient Temperature, V © 2005 Microchip Technology Inc. FIGURE 2-4: = 3.3V. Histogram +25° FIGURE 2-5: Temperature. FIGURE 2-6: = 3.3V. Ambient Temperature. ...
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... V vs. Ambient Temperature. OL DS21935A-page 6 145 Average of 10 samples per package 125 = 5.5V DD 105 = 3. 2. 105 125 -2 vs. FIGURE 2-9: OL vs. Time 105 125 SOIC MSOP 27°C (Air) to 125°C (Oil bath Time (s) TCN75A Thermal Response © 2005 Microchip Technology Inc. ...
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... The operating voltage specified in the DC electrical specification table, is applied on this pin. 3.4 Ground (GND) GND is the system ground pin. © 2005 Microchip Technology Inc. Function Bidirectional Serial Data Serial Clock Input Temperature Alert Output Ground Address Select Pin (bit 2) ...
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... Section 4.3.4.7 “ for details With this method, the ⎛ ⎞ kT ----- - ⎝ ⎠ temperature in kelvin = change in diode base-emitter BE voltage k = Boltzmann's constant q = electron charge = currents with n:1 ratio 2 Analog-to-Digital Converter to a digital BE “Sensor Configuration Register ADC Resolution” © 2005 Microchip Technology Inc. BE ...
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... Unimplemented: Read as ‘0’ bit 2-0 Pointer bits 00 = Temperature register 01 = Configuration register 10 = Temperature Hysteresis register 11 = Temperature Limit-set register Legend Readable bit - n = Value at POR © 2005 Microchip Technology Inc. ) HYST Fault Queue Alert Polarity Alert Comp/Int Configuration Register Temperature Register T ...
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... R-0 0 °C/bit 2 °C/bit bit 8 R-0 R-0 R bit Bit is unknown Decimal T (°C) A 250 +125 50 +25 1 +0.5 500 +125 101 +25.25 1 +0.25 1000 +125 203 +25.375 1 +0.125 2000 +125 407 +25.4375 1 +0.0625 -0.0625 -407 -25.4375 -880 -55 © 2005 Microchip Technology Inc. ...
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... R/W-0 R/W Sign 2 °C/bit 2 °C/bit bit 15 Lower Half R/W-0 R °C/bit 0 bit 7 Legend Readable bit W = Writable bit - n = Value at POR ‘1’ = Bit is set © 2005 Microchip Technology Inc. register is SET ) SET R/W-0 R/W-0 R/W °C/bit 2 °C/bit 2 °C/bit R-0 R-0 R Unimplemented bit, read as ‘0’ ...
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... Bit is set DS21935A-page 12 (refer to register is 75°C, HYST R/W-0 R/W-0 R/W °C/bit 2 °C/bit 2 °C/bit R-0 R-0 R Unimplemented bit, read as ‘0’ ‘0’ = Bit is cleared ) R/W-0 R/W °C/bit 2 °C/bit bit 8 R-0 R-0 R bit Bit is unknown © 2005 Microchip Technology Inc. ...
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... Interrupt mode 0 = Comparator mode (Power-up default) bit 0 SHUTDOWN bit 1 = Enable 0 = Disable (Power-up default) Legend Readable bit - n = Value at POR © 2005 Microchip Technology Inc. R/W-0 R/W-0 R/W-0 Resolution Fault Queue W = Writable bit U = Unimplemented bit, read as ‘0’ ‘1’ = Bit is set ‘0’ = Bit is cleared ...
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... ALERT Comparator mode Active-low ALERT Interrupt mode Active-low FIGURE 4-3: . The pin remains active SET . The Comparator mode is HYST below T , for the A HYST A . However, the output is deasserted SET A , the TCN75A outputs another interrupt Alert Output. © 2005 Microchip Technology Inc. ...
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... Microchip Technology Inc. 4.4 Summary of Power-up Condition The TCN75A has an internal Power-on Reset (POR) circuit. If the power supply voltage V to the 1.7V (typ.) threshold, the device resets the registers to the power-up default settings. Table 4-2 shows the power-up default summary. ...
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... The following bus protocol has been defined: TABLE 5-1: SERIAL BUS CONVENTIONS 5.1.1 DATA TRANSFER Data transfers are initiated by a START condition, followed by a 7-bit device address and a 1-bit read/ write. Acknowledge (ACK) from slave confirms the DS21935A-page 16 © 2005 Microchip Technology Inc. ...
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... Read 1-byte Data SCLK SDA Address Byte SCLK SDA S Read 2-byte Data SCLK SDA Address Byte SCLK A A SDA Address Byte S = START Condition P = STOP Condition FIGURE 5-2: Read 1-byte and 2-byte data from a register. © 2005 Microchip Technology Inc Pointer TCN75A ...
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... Address Byte Write 2-byte Data SCLK SDA Address Byte S = START Condition P = STOP Condition FIGURE 5-3: Write 1-byte and 2-byte data from a register. DS21935A-page Pointer TCN75A TCN75A Pointer TCN75A MSB Data TCN75A Data TCN75A TCN75A LSB Data TCN75A © 2005 Microchip Technology Inc. ...
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... Receive 1-byte Data SCLK SDA Receive Another 1-byte Data SCLK SDA Note: User can continue to receive 1-byte data indefinitely from a previously set register pointer START Condition P = STOP Condition FIGURE 5-4: Receive 1-byte data from previously set pointer. © 2005 Microchip Technology Inc ...
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... User can continue to receive 2-byte data indefinitely from a previously set register pointer START Condition P = STOP Condition FIGURE 5-5: Receive 2-byte data from previously set pointer. DS21935A-page Pointer TCN75A MSB Data Master TCN75A MSB Data Master TCN75A TCN75A LSB Data Master LSB Data Master © 2005 Microchip Technology Inc. ...
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... Temperature Sensor FIGURE 6-2: Multiple Devices on I Bus © 2005 Microchip Technology Inc. The ALERT output can be wire-ORed with a number of other open-drain devices. In such applications, the output needs to be programmed as an active-low output. Most systems will require pull-up resistors for this configuration. ...
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... Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. DS21935A-page 22 Example: N75A/E 542256 Example: TCN75A VOA0542 256 ) e 3 © 2005 Microchip Technology Inc. ...
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... Plastic Micro Small Outline Package (UA) (MSOP) © 2005 Microchip Technology Inc. TCN75A DS21935A-page 23 ...
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... A2 MILLIMETERS MIN NOM MAX 8 1.27 1.35 1.55 1.75 1.32 1.42 1.55 0.10 0.18 0.25 5.79 6.02 6.20 3.71 3.91 3.99 4.80 4.90 5.00 0.25 0.38 0.51 0.48 0.62 0. 0.20 0.23 0.25 0.33 0.42 0. © 2005 Microchip Technology Inc. ...
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... APPENDIX A: REVISION HISTORY Revision A (January 2005) • Original release of this document. © 2005 Microchip Technology Inc. TCN75A DS21935A-page 25 ...
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... TCN75A DS21935A-page 26 © 2005 Microchip Technology Inc. ...
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... Device Temperature Package Range Device: TCN75A: Temperature Sensor Temperature +125 C Range: Package Plastic SOIC, (150 mil Body), 8-lead UA = Plastic Micro Small Outline (MSOP), 8-lead © 2005 Microchip Technology Inc. TCN75A . Examples: a) TCN75AVOA 8LD SOIC package. b) TCN75AVUA 8LD MSOP package. DS21935A-page 27 ...
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... TCN75A NOTES: DS21935A-page 28 © 2005 Microchip Technology Inc. ...
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... PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel and Total Endurance are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...
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... Fax: 65-6334-8850 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Taiwan - Hsinchu Tel: 886-3-572-9526 Fax: 886-3-572-6459 © 2005 Microchip Technology Inc. EUROPE Austria - Weis Tel: 43-7242-2244-399 Fax: 43-7242-2244-393 Denmark - Ballerup Tel: 45-4450-2828 Fax: 45-4485-2829 France - Massy Tel: 33-1-69-53-63-20 ...