MCP9510HT-E/CHVAO

MCP9509/10 Resistor-Programmable Temperature Switches Features Description • • • • Microchip Technology’s MCP9509/10 devices are programmable logic output temperature switches. The temperature switch threshold can be programmed with a single external resistor, which provides high design flexibility and simplicity. In addition, this family of devices provide user programmable features such as 2°C and 10°C (typical) switch hysteresis and output structure configuration. The MCP9509 provides an open drain output, whereas the MCP9510 is offered in three different user selectable output configurations: Active-low/Active-high push pull and Active-Low Open-Drain output with an internal 100 kΩ pull-up resistor. Resistor-Programmable Temperature Switch Wide Operating Voltage Range: 2.7V to 5.5V Low Supply Current: 30 µA (typical) Temperature Switch Accuracy: - ±0.5°C (typical) at +25°C, +45°C - ±1°C (typical) 0°C to +70°C - ±3.5°C (maximum) 0°C to +125°C - ±4.5°C (maximum) -20°C to +125°C - ±2°C (typical) -40°C to +125°C • Sensor Options available: - Switch for rising temperature: Cold to Hot (H) - Switch for falling temperature: Hot to Cold (C) • Output Configurations: - Open-Drain: – External Pull-up Resistor: MCP9509 – Internal Pull-up Resistor: MCP9510 The MCP9509/10 operate from 2.7V to 5.5V. This family is capable of triggering for temperatures -40°C to +125°C with high accuracy. Package Types - Active-Low, Push-Pull: MCP9510 - Active-High, Push-Pull: MCP9510 • User Selectable Hysteresis: 2°C or 10°C (typical) • Space-Saving SOT-23-5, SOT-23-6 Packages MCP9509 SOT-23-5 SET 1 5 VDD GND 2 Applications • • • • • • 4 HYST OUT 3 MCP9510 SOT-23-6 Power Supply Thermal Shutdown Temperature Alarm Thermostat Control Fan Control Base-Stations Automotive SET 1 GND 2 OUT / OUT 3 6 VDD 5 OUTSET 4 HYST Typical Performance 20% TA = +45°C VDD = 4.1V 9087 Units 6 Lots Occurrences 16% 12% 8% 4% 3.0 2.0 1.0 0.0 -1.0 -2.0 -3.0 0% Temperature Accuracy (°C) © 2008 Microchip Technology Inc. DS22114A-page 1 MCP9509/10 NOTES: DS22114A-page 2 © 2008 Microchip Technology Inc. MCP9509/10 1.0 ELECTRICAL CHARACTERISTICS †Notice: Stresses above those listed under “Maximum ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. Absolute Maximum Ratings † VDD.................................................................................. 6.0V Voltage at all Input/Output pins ............... GND – 0.3V to 6.0V Input/Output Current .....................................................20 mA Storage temperature .....................................-65°C to +150°C Ambient temp. with power applied ................-40°C to +125°C Junction Temperature (TJ) .......................................... +150°C ESD protection on all pins (HBM:MM) ................. (4 kV/400V) Latch-Up Current at each pin (25°C) ....................... ±200 mA DC CHARACTERISTICS Electrical Specifications: Unless otherwise indicated, VDD = 2.7V to 5.5V, TA = -40°C to +125°C, and GND = Ground. Parameters Sym Min Typ Max Unit TACY — ±0.5 — °C ±1 +3.5 °C Conditions Sensor Accuracy TA = +25°C, +45°C 0°C ≤ TA ≤ +125°C -3.5 -20°C ≤ TA ≤ +125°C -4.5 ±1 +4.5 °C -40°C ≤ TA ≤ +125°C — ±2 — °C Note 1 Power Supply Operating Voltage VDD 2.7 — 5.5 V Operating Current (MCP9509) IDD — 30 50 µA Operating Current (MCP9510) IDD — 50 80 µA OUTSET = GND or VDD — 100 165 µA OUTSET = Unconnected — +2 — °C HYST = GND — +10 — °C HYST = VDD VIH VDD - 0.4 — — V Input (HYST) Thresholds VIL — — 0.4 V Hysteresis Input (HYST) Leakage ILeak — 1 — µA GND — 0.2VDD V Open-Drain with ROUT, Active Low 0.45VDD — 0.7VDD V Push-Pull, Active High 0.85VDD — VDD V — 10 — µA GND ≤ VOSET ≤ 0.2VDD — 0 — µA Unconnected (i.e. open) — 7 — µA 0.4VDD ≤ VOSET ≤ 0.7VDD — -10 — µA 0.85 ≤ VOSET ≤ VDD — 500 — kΩ Hysteresis Trip Point Hysteresis Hysteresis Select: THYST MCP9510 Output Control Input (OUTSET Input) OUTSET Input Voltage Threshold and Output Configuration Push-Pull, Active Low VOSET or OUTSET Unconnected OUTSET Input Leakage and Output Configuration Push-Pull, Active Low ILeak Open-Drain, Active Low Push-Pull, Active High OUTSET Input Impedance Note 1: ZOUTSET This specification is tested at mid supply of 4.1V for optimum operation across the supply voltage range of 2.7V to 5.5V. © 2008 Microchip Technology Inc. DS22114A-page 3 MCP9509/10 DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise indicated, VDD = 2.7V to 5.5V, TA = -40°C to +125°C, and GND = Ground. Parameters Sym Min Typ Max Unit Conditions Output Voltage High, MCP9510 VOH VDD - 0.55 — VDD V Output Voltage Low, MCP9510 VOL GND — 0.3 V IOUT = 5 mA OUTSET = VDD or GND IOUT = 5 mA Outputs (OUT, OUT) Output Voltage Low, MCP9509 VOL GND — 0.3 V Internal Output Pull-up (MCP9510) ROUT 60 100 140 kΩ OUTSET Unconnected Open-Drain Output Leakage ILeak — 1 — µA MCP9509/10 Power Supply Rejection PSR — 0.05 — °C/V tRES — 1.7 — s Thermal Response SOT23-5, SOT23-6 Note 1: Time to 63% (88°C). +25°C (Air) to +125°C (oil bath) This specification is tested at mid supply of 4.1V for optimum operation across the supply voltage range of 2.7V to 5.5V. TEMPERATURE CHARACTERISTICS Electrical Specifications: Unless otherwise indicated, VDD = 2.7V to 5.5V, TA = -40°C to +125°C, and GND = Ground. Parameters Sym Min Typ Max Units Specified Temperature Range TA -40 — +125 °C Operating Temperature Range TA -40 — +125 °C Storage Temperature Range TA -65 — +150 °C Thermal Resistance, 5L-SOT23 θJA — 220.7 — °C/Ω Thermal Resistance, 6L-SOT23 θJA — 190.5 — °C/Ω Conditions Temperature Ranges (Note 1) Thermal Package Resistances Note 1: Operation in this range must not cause TJ to exceed Maximum Junction Temperature (+150°C). DS22114A-page 4 © 2008 Microchip Technology Inc. MCP9509/10 2.0 TYPICAL PERFORMANCE CURVES Note: The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range. 5.0 50 2.5 Supply Current, IDD (µA) Temperature Accuracy (°C) Note: Unless otherwise indicated, VDD = 2.7V to 5.5V, TA = -40°C to +125°C, GND = Ground, RPULL-UP = 10 kΩ (MCP9509 only) and 0.1 µf bypass capacitor. +σ Average -σ Spec. Limit 0.0 MCP9509C MCP9509H MCP9510C MCP9510H -2.5 -5.0 MCP9509C MCP9509H 45 40 VDD = 5.5V VDD = 4.1V VDD = 2.7V 35 30 25 20 15 10 -40 -20 0 20 40 60 80 100 120 -40 -20 0 Temperature (°C) FIGURE 2-1: 4.0 Hysteresis (kΩ) Hysteresis (°C) 3.0 2.0 2.0 1.0 1.0 0.0 0.0 -40 -20 0 20 40 60 Supply Current, IDD (µA) 4.0 3.0 50 5.0 HYST = GND 25 VDD = 5.5V VDD = 4.1V VDD = 2.7V 20 15 -20 0 8.0 7.0 7.0 6.0 5.0 5.0 FIGURE 2-3: Temperature. 80 100 120 Output Hysteresis vs. © 2008 Microchip Technology Inc. 60 80 100 50 I DD (µA), De-Asserted Hysteresis (°C) 11.0 40 60 TA (°C) 40 120 110 MCP9510C MCP9510H VDD = 4.0V 45 40 De-Asserted 105 100 35 95 30 Asserted, Internal Pull-Up Current 25 20 90 85 80 OUTSET = Open OUT = Open-Drain Output with Internal Pull- 15 10 -40 -20 0 20 40 60 80 IDD (µA), Asserted 9.0 20 20 FIGURE 2-5: Supply Current vs. Temperature OUTSET = VDD, VSS (MCP9510). Hysteresis (kΩ) 13.0 0 OUTSET = VDD, VSS Temperature (°C) 10.0 -40 -20 120 30 -40 Output Hysteresis vs. Hysteresis (kΩ) Hysteresis (°C) 100 35 10 HYST = VDD 9.0 80 40 80 100 120 15.0 60 MCP9510C MCP9510H 45 Temperature (°C) FIGURE 2-2: Temperature. 40 FIGURE 2-4: Supply Current vs. Temperature (MCP9509). Temperature Accuracy. Hysteresis (kΩ) Hysteresis (°C) 5.0 20 Temperature (°C) 75 70 100 120 Temperature (°C) FIGURE 2-6: Supply Current vs. Temperature OUTSET = Unconnected, Open (MCP9510). DS22114A-page 5 MCP9509/10 Note: Unless otherwise indicated, VDD = 2.7V to 5.5V, TA = -40°C to +125°C, GND = Ground, RPULL-UP = 10 kΩ (MCP9509 only) and 0.1 µf bypass capacitor. 16% 12% Temperature Accuracy (°C) 20% Temperature Accuracy (°C) 20% Temperature Accuracy (°C) FIGURE 2-9: Temperature Accuracy Histogram at +125°C. 6.0 5.0 4.0 3.0 2.0 1.0 0.0 -1.0 -2.0 -3.0 -6.0 3.0 2.0 0% 1.0 0% 0.0 4% -4.0 8% 4% -1.0 3.0 12% -5.0 Occurrences 8% -2.0 TA = -40°C VDD = 4.1V 9412 Units 6 Lots 16% 12% -3.0 Occurrences FIGURE 2-11: Temperature Accuracy Histogram at -20°C. TA = +125°C VDD = 4.1V 9083 Units 6 Lots DS22114A-page 6 1.0 Temperature Accuracy (°C) FIGURE 2-8: Temperature Accuracy Histogram at +70°C. 16% 0.0 -2.0 -3.0 3.0 2.0 1.0 0.0 0% -1.0 0% -2.0 4% 2.0 8% 4% 20% 3.0 12% -1.0 Occurrences 8% Temperature Accuracy TA = -20°C VDD = 4.1V 8304 Units 6 Lots 16% 12% -3.0 Occurrences FIGURE 2-10: Histogram at 0°C. TA = +70°C VDD = 4.1V 9280 Units 6 Lots 16% 1.0 Temperature Accuracy (°C) FIGURE 2-7: Temperature Accuracy Histogram at +45°C. 20% 0.0 -3.0 3.0 2.0 0% 1.0 0% 0.0 4% -1.0 4% 2.0 8% -1.0 8% -2.0 TA = 0°C VDD = 4.1V 8936 Units 6 Lots -2.0 12% -3.0 Occurrences 16% 20% TA = +45°C VDD = 4.1V 9087 Units 6 Lots Occurrences 20% Temperature Accuracy (°C) FIGURE 2-12: Temperature Accuracy Histogram at -40°C. © 2008 Microchip Technology Inc. MCP9509/10 Note: Unless otherwise indicated, VDD = 2.7V to 5.5V, TA = -40°C to +125°C, GND = Ground, RPULL-UP = 10 kΩ (MCP9509 only) and 0.1 µf bypass capacitor. 1 0.75 0.5 Hysteresis Input Leakage 0.25 0 Output Leakage (µA) Leakage (µA) 1 MCP9509 Output Leakage 0.75 0.5 VDD = 5.5V VDD = 2.7V 0.25 0 -40 -20 0 20 40 60 80 100 120 -40 -20 Temperature (°C) FIGURE 2-13: vs, Temperature. Hysteresis Input Leakage © 2008 Microchip Technology Inc. 0 20 40 60 80 100 120 Temperature (°C) FIGURE 2-14: Temperature. Output Leakage vs. DS22114A-page 7 MCP9509/10 NOTES: DS22114A-page 8 © 2008 Microchip Technology Inc. MCP9509/10 3.0 PIN DESCRIPTIONS TABLE 3-1: PIN FUNCTION TABLE MCP9509 MCP9510 SOT-23-5 SOT-23-6 3.1 Symbol Description 1 1 SET External Trip Temperature Resistor (RSET) input 2 2 GND Ground 3 — OUT Open-drain output — 3 OUT, OUT Selectable Output pin, function set by OUTSET pin 4 4 HYS Hysteresis Input HYS = GND, hysteresis is 2°C HYS = VDD, hysteresis is 10°C 5 6 VDD Power pin — 5 OUTSET Output Control OUTSET = GND, Active-Low, Push-Pull OUTSET = VDD, Active-High, Push-Pull OUTSET = Unconnected, Active-Low, Open-Drain with an internal pull-up External Resistor Input (SET) This pin is used to connect a resistor between the SET and GND pins to select the temperature trip point (TSET). The resistor value can be determined either from Equation 4-2 or the lookup table shown in Table 4-2. 3.2 Ground (GND) The GND pin is the system ground pin. 3.3 Hysteresis Input (HYS) This is an input pin which can be connected to VDD or GND to select output hysteresis. Either 2°C (HYS = GND) or 10°C (HYS = VDD) of hysteresis can be selected. 3.4 Power Pin (VDD) The operating voltage range, as specified in the DC electrical specification table, is applied on this pin. 3.5 Open-Drain Output (OUT) (MCP9509) This output is triggered when temperature exceeds the programmed trip temperature. This pin requires a pull-up resistor. 3.6 Selectable Output (OUT, OUT) (MCP9510) The output pin can be configured as either a Push-Pull Active-High, Push-Pull Active-Low, or an Open-drain Output with an internal pull-up resistor. The three output options of the MCP9510 are selected by the OUTSET pin. 3.7 Output Control (OUTSET) (MCP9510) The OUTSET pin is used to select the desired configuration of the OUT or OUT pin. TABLE 3-1: OUTSET SELECTABLE OUTPUTS OUTSET Pin © 2008 Microchip Technology Inc. OUT / OUT Pin GND Push-Pull, Active-Low VDD Push-Pull, Active-High unconnected (i.e. open) Open-Drain output with an internal pull-up resistor of 100 kΩ (typical) DS22114A-page 9 MCP9509/10 NOTES: DS22114A-page 10 © 2008 Microchip Technology Inc. MCP9509/10 4.0 FUNCTIONAL DESCRIPTION The MCP9509/10 integrates a temperature switch with a user programmable threshold. The temperature switch threshold or alert limit is programmed using an external resistor RSET. A logic signal is asserted when the die temperature crosses the programmed alert limit. The MCP9509 has an Open-Drain output which requires an external pull-up resistor for operation. The MCP9510 output can be configured to three user selectable output configurations. The OUTSET pin is used to select Active-Low Push-Pull, Active-Low Open-Drain (with internal 100 kΩ pull-up resistor), Active-High Push-Pull output configurations. In addition, this device provides user selectable hysteresis of 2°C and 10°C (typical). 4.1 R1 RA The SET input pin is used to connect an external resistor RSET. The resistor sets the alert threshold. The SET pin outputs a constant current ISET (~5 µA) to bias RSET (Shown in Figure 4-1). The voltage across RSET, VSET, is compared to an internal thermal diode. Rx + OUT/ OUT - Thermal Diode RSET FIGURE 4-1: SET input. When the thermal diode voltage exceeds VSET, the sensor output asserts. The assert polarity is determined by the state of the OUTSET pin. + RA R3 MCP9510 OUTSET Input The OUTSET pin input impedance ZOUTSET is set by the internal resistance RA = 1 MΩ (typical). The input structure is a voltage divider network from VDD. Therefore, the leakage current on the OUTSET pin is a function of change in VDD and the VOSET. HYST Input Pin (Hysteresis Select) The MCP9509/10 family has a user selectable hysteresis input pin HYST. Hysteresis can be externally selected to either 2°C (HYST = GND) or 10°C (HYST = VDD). Figure 4-3 shows graphical description of change in hysteresis. For example, if the alert temperature threshold is set to TSET = 100°C (RSET = 16.1 kΩ) with an Active-Low output configuration, the output asserts Low when temperature exceeds 100°C ± TACY. The output remains asserted Low until temperautre falls below THYST, 98°C (HYST = GND) or 90°C (HYST = VDD). 10°C Typical Hysteresis V 2°C Typical Hysteresis MCP9510 OUTSET Input Pin This pin is used to select the device output configuration. This feature enables in-circuit device output configuration by driving this pin with a microcontroller I/O pin to Output-HIGH, Output-LOW, or High-Impedance input. Figure 4-4 shows the configuration and output conditions. The input structure of this pin consists of a resistor ladder and comparators to determine OUTSET level threshold. Figure 4-2 shows the circuit configuration. The OUTSET input resistance must be carefully considered for leakage current when connecting voltage source to change output configuration. © 2008 Microchip Technology Inc. OUT 4.2 - R2 OUTSET Pin 4.3 ISET SET + FIGURE 4-2: Structure. SET Input Pin VSET VDD MCP9510 THYST TSET Cold Hot Temperature FIGURE 4-3: Output Hysteresis. DS22114A-page 11 MCP9509/10 4.4 Sensor Hot/Cold Options EQUATION 4-1: MCP9509/10 is available with Hot (H) and Cold (C) options. The MCP9509/10 Hot option detects rising temperature while the Cold option detects falling temperature. The output of the Hot option asserts when temperature rises above TSET and de-asserts when temperature falls below THYST. The output of the Cold option asserts when temperature falls below TSET and de-asserts when temperature rises above THYST. For example, if TSET = 100°C for Hot option (Active-Low Configuration, HYST = VDD), output asserts Low when temperature is greater than 100°C ± TACY. The output de-asserts High when temperature is below 90°C. For the Cold option, output asserts Low when temperature is less than 100°C ± TACY, and de-asserts when temperature is greater than 110°C. This operation is shown graphically in Figure 4-4. 4.5 The relation between the user selectable external resistor RSET and the output trigger threshold limit TSET is described as shown in EQUATION 4-1: “TSET to Rset conversion” and EQUATION 4-2: “RSET to Tset conversion”. The equation coeffcients vary depending on the device output options, H or C. Table 4-1 shows the corresponding coefficients. COEFFICIENTS/VARIABLES Coef. MCP9509/10H MCP9509/10C Units CR1 -9.84 -10.00 10-6kΩ/°C3 CR2 3.355 3.345 10-3kΩ/°C2 CR3 -0.8648 -0.8610 kΩ/°C CT1 -20.00 -19.7 10-6°C/kΩ3 CT2 4.136 4.179 10-3°C/kΩ2 CT3 -1.1564 -1.1617 °C/kΩ R1 94.1 95.1 kΩ R2 145.5 146.3 kΩ R3 2.77 4.25 kΩ T1 -40.0 °C T2 125.0 °C DS22114A-page 12 R SET = C R1 T SET ( T SET – T 1 ) ( T SET – T 2 ) + C R2 ( T SET – T 1 ) ( T SET – T 2 ) + C R3 ( T SET – T 1 ) + R 2 Where: CR1,2,3 = 1st, 2nd and 3rd order Temperature to Resistance Conversion Coefficients (Table 4-1) R2 = Resistance (Table 4-1) T1,2 = Temperature (Table 4-1) EQUATION 4-2: RSET TO TSET CONVERSION T SET = C T1 ( R SET – R 1 ) ( R SET – R 2 ) ( R SET – R 3 ) + RSET vs. Temperature TABLE 4-1: TSET TO RSET CONVERSION C T2 ( R SET – R 3 ) ( R SET – R 2 ) + C T3 ( R SET – R 2 ) + T 1 Where: CC1,2,3 = 1st, 2nd and 3rd order Resistance to Temperature Conversion Coefficients (Table 4-1) R1,2,3 = Resistance (Table 4-1) T1 = Temperature (Table 4-1) The equations can be used to determine the external resistance value for a specified temperature threshold or threshold value for a specified resistance. Table 4-2 and Table 4-3 show a look-up table which can be used to easily identify the TSET to RSET relation for Hot and Cold options. © 2008 Microchip Technology Inc. MCP9509/10 MCP9509H Output Output −> Open-Drain with external Pull-up OUT −> Active-Low OUT V MCP9509C Output is es ter s Hy V OUT is res ste y H TSET THYST THYST TSET Cold Hot Temperature Cold Hot Temperature MCP9510H Output V OUT −> Active-Low OUT Output −> Push-Pull MCP9510C Output is es ter s Hy V OUT Hy OUTSET −> VOSET < 0.2VDD is res ste TSET THYST THYST TSET Cold Hot Temperature MCP9510H Output H te ys MCP9510C Output V res ste Hy is OUT Output −> Open-Drain with ROUT V OUT OUTSET −> Open/Unconnected or OUTSET −> 0.45VDD≤VOUTSET≤ 0.7VDD is r es Cold Hot Temperature OUT −> Active-Low TSET THYST THYST TSET Cold Hot Temperature Cold Hot Temperature MCP9510H Output V MCP9510C Output sis ere t s Hy V OUT Output −> Push-Pull OUT OUTSET −> VDD Hy is res ste OUT −> Active-High THYST TSET Cold Hot Temperature FIGURE 4-4: TSET THYST Cold Hot Temperature MCP9509/10 OUT/OUT Output Configuration. © 2008 Microchip Technology Inc. DS22114A-page 13 MCP9509/10 TABLE 4-2: TSET (°C) TSET TO RSET CONVERSION TABLE FOR MCP9509/MCP9510H (HOT) RSET (kΩ) TSET (°C) RSET (kΩ) TSET (°C) RSET (kΩ) TSET (°C) RSET (kΩ) TSET (°C) RSET (kΩ) TSET (°C) RSET (kΩ) TSET (°C) RSET (kΩ) TSET (°C) RSET (kΩ) TSET (°C) RSET (kΩ) -40.0 145.5 -20.0 117.9 0.0 94.1 20.0 73.7 40.0 56.2 60.0 41.1 80.0 27.9 100.0 16.1 120.0 5.4 -39.5 144.8 -19.5 117.3 0.5 93.6 20.5 73.2 40.5 55.8 60.5 40.7 80.5 27.5 100.5 15.9 120.5 5.1 -39.0 144.0 -19.0 116.6 1.0 93.0 21.0 72.8 41.0 55.4 61.0 40.3 81.0 27.2 101.0 15.6 121.0 4.9 -38.5 143.3 -18.5 116.0 1.5 92.5 21.5 72.3 41.5 55.0 61.5 40.0 81.5 26.9 101.5 15.3 121.5 4.6 -38.0 142.6 -18.0 115.4 2.0 91.9 22.0 71.8 42.0 54.6 62.0 39.7 82.0 26.6 102.0 15.0 122.0 4.4 -37.5 141.8 -17.5 114.7 2.5 91.4 22.5 71.4 42.5 54.2 62.5 39.3 82.5 26.3 102.5 14.7 122.5 4.1 -37.0 141.1 -17.0 114.1 3.0 90.9 23.0 70.9 43.0 53.8 63.0 39.0 83.0 26.0 103.0 14.5 123.0 3.8 -36.5 140.4 -16.5 113.5 3.5 90.3 23.5 70.5 43.5 53.4 63.5 38.6 83.5 25.7 103.5 14.2 123.5 3.6 -36.0 139.7 -16.0 112.9 4.0 89.8 24.0 70.0 44.0 53.0 64.0 38.3 84.0 25.4 104.0 13.9 124.0 3.3 -35.5 138.9 -15.5 112.2 4.5 89.3 24.5 69.5 44.5 52.6 64.5 37.9 84.5 25.1 104.5 13.6 124.5 3.1 -35.0 138.2 -15.0 111.6 5.0 88.7 25.0 69.1 45.0 52.2 65.0 37.6 85.0 24.8 105.0 13.4 125.0 2.8 -34.5 137.5 -14.5 111.0 5.5 88.2 25.5 68.6 45.5 51.8 65.5 37.2 85.5 24.5 105.5 13.1 -34.0 136.8 -14.0 110.4 6.0 87.7 26.0 68.2 46.0 51.4 66.0 36.9 86.0 24.2 106.0 12.8 -33.5 136.1 -13.5 109.8 6.5 87.2 26.5 67.7 46.5 51.0 66.5 36.6 86.5 23.9 106.5 12.6 -33.0 135.4 -13.0 109.2 7.0 86.6 27.0 67.3 47.0 50.6 67.0 36.2 87.0 23.6 107.0 12.3 -32.5 134.7 -12.5 108.6 7.5 86.1 27.5 66.8 47.5 50.2 67.5 35.9 87.5 23.3 107.5 12.0 -32.0 134.0 -12.0 108.0 8.0 85.6 28.0 66.4 48.0 49.9 68.0 35.6 88.0 23.0 108.0 11.7 -31.5 133.3 -11.5 107.4 8.5 85.1 28.5 65.9 48.5 49.5 68.5 35.2 88.5 22.7 108.5 11.5 -31.0 132.6 -11.0 106.8 9.0 84.6 29.0 65.5 49.0 49.1 69.0 34.9 89.0 22.4 109.0 11.2 -30.5 131.9 -10.5 106.2 9.5 84.0 29.5 65.1 49.5 48.7 69.5 34.6 89.5 22.1 109.5 10.9 -30.0 131.2 -10.0 105.6 10.0 83.5 30.0 64.6 50.0 48.3 70.0 34.2 90.0 21.8 110.0 10.7 -29.5 130.5 -9.5 105.0 10.5 83.0 30.5 64.2 50.5 48.0 70.5 33.9 90.5 21.5 110.5 10.4 -29.0 129.8 -9.0 104.4 11.0 82.5 31.0 63.7 51.0 47.6 71.0 33.6 91.0 21.3 111.0 10.1 -28.5 129.1 -8.5 103.8 11.5 82.0 31.5 63.3 51.5 47.2 71.5 33.3 91.5 21.0 111.5 9.9 -28.0 128.5 -8.0 103.2 12.0 81.5 32.0 62.9 52.0 46.8 72.0 32.9 92.0 20.7 112.0 9.6 -27.5 127.8 -7.5 102.6 12.5 81.0 32.5 62.4 52.5 46.5 72.5 32.6 92.5 20.4 112.5 9.3 -27.0 127.1 -7.0 102.0 13.0 80.5 33.0 62.0 53.0 46.1 73.0 32.3 93.0 20.1 113.0 9.1 -26.5 126.4 -6.5 101.5 13.5 80.0 33.5 61.6 53.5 45.7 73.5 32.0 93.5 19.8 113.5 8.8 -26.0 125.8 -6.0 100.9 14.0 79.5 34.0 61.2 54.0 45.4 74.0 31.6 94.0 19.5 114.0 8.5 -25.5 125.1 -5.5 100.3 14.5 79.0 34.5 60.7 54.5 45.0 74.5 31.3 94.5 19.2 114.5 8.3 -25.0 124.4 -5.0 99.7 15.0 78.5 35.0 60.3 55.0 44.6 75.0 31.0 95.0 19.0 115.0 8.0 -24.5 123.8 -4.5 99.2 15.5 78.0 35.5 59.9 55.5 44.3 75.5 30.7 95.5 18.7 115.5 7.7 -24.0 123.1 -4.0 98.6 16.0 77.6 36.0 59.5 56.0 43.9 76.0 30.4 96.0 18.4 116.0 7.5 -23.5 122.4 -3.5 98.0 16.5 77.1 36.5 59.1 56.5 43.5 76.5 30.0 96.5 18.1 116.5 7.2 -23.0 121.8 -3.0 97.5 17.0 76.6 37.0 58.6 57.0 43.2 77.0 29.7 97.0 17.8 117.0 7.0 -22.5 121.1 -2.5 96.9 17.5 76.1 37.5 58.2 57.5 42.8 77.5 29.4 97.5 17.5 117.5 6.7 -22.0 120.5 -2.0 96.4 18.0 75.6 38.0 57.8 58.0 42.5 78.0 29.1 98.0 17.2 118.0 6.4 -21.5 119.8 -1.5 95.8 18.5 75.1 38.5 57.4 58.5 42.1 78.5 28.8 98.5 17.0 118.5 6.2 -21.0 119.2 -1.0 95.2 19.0 74.7 39.0 57.0 59.0 41.8 79.0 28.5 99.0 16.7 119.0 5.9 -20.5 118.5 -0.5 94.7 19.5 74.2 39.5 56.6 59.5 41.4 79.5 28.2 99.5 16.4 119.5 5.7 -20.0 117.9 0.0 94.1 20.0 73.7 40.0 56.2 60.0 41.1 80.0 27.9 100.0 16.1 120.0 5.4 DS22114A-page 14 © 2008 Microchip Technology Inc. MCP9509/10 TABLE 4-3: TSET (°C) TSET TO RSET CONVERSION TABLE FOR MCP9509/MCP9510C (COLD) RSET (kΩ) TSET (°C) RSET (kΩ) TSET (°C) RSET (kΩ) TSET (°C) RSET (kΩ) TSET (°C) RSET (kΩ) TSET (°C) RSET (kΩ) TSET (°C) RSET (kΩ) TSET (°C) RSET (kΩ) TSET (°C) RSET (kΩ) -40.0 146.3 -20.0 118.8 0.0 95.1 20.0 74.8 40.0 57.4 60.0 42.4 80.0 29.2 100.0 17.6 120.0 6.8 -39.5 145.6 -19.5 118.2 0.5 94.6 20.5 74.4 40.5 57.0 60.5 42.0 80.5 28.9 100.5 17.3 120.5 6.6 -39.0 144.8 -19.0 117.5 1.0 94.0 21.0 73.9 41.0 56.6 61.0 41.7 81.0 28.6 101.0 17.0 121.0 6.3 -38.5 144.1 -18.5 116.9 1.5 93.5 21.5 73.4 41.5 56.2 61.5 41.3 81.5 28.3 101.5 16.7 121.5 6.0 -38.0 143.4 -18.0 116.3 2.0 93.0 22.0 73.0 42.0 55.8 62.0 41.0 82.0 28.0 102.0 16.4 122.0 5.8 -37.5 142.6 -17.5 115.6 2.5 92.4 22.5 72.5 42.5 55.4 62.5 40.6 82.5 27.7 102.5 16.2 122.5 5.5 -37.0 141.9 -17.0 115.0 3.0 91.9 23.0 72.0 43.0 55.0 63.0 40.3 83.0 27.4 103.0 15.9 123.0 5.3 -36.5 141.2 -16.5 114.4 3.5 91.4 23.5 71.6 43.5 54.6 63.5 39.9 83.5 27.1 103.5 15.6 123.5 5.0 -36.0 140.5 -16.0 113.8 4.0 90.8 24.0 71.1 44.0 54.2 64.0 39.6 84.0 26.8 104.0 15.3 124.0 4.8 -35.5 139.8 -15.5 113.2 4.5 90.3 24.5 70.7 44.5 53.8 64.5 39.3 84.5 26.5 104.5 15.1 124.5 4.5 -35.0 139.0 -15.0 112.5 5.0 89.8 25.0 70.2 45.0 53.4 65.0 38.9 85.0 26.2 105.0 14.8 125.0 4.2 -34.5 138.3 -14.5 111.9 5.5 89.2 25.5 69.8 45.5 53.0 65.5 38.6 85.5 25.9 105.5 14.5 -34.0 137.6 -14.0 111.3 6.0 88.7 26.0 69.3 46.0 52.7 66.0 38.2 86.0 25.6 106.0 14.3 -33.5 136.9 -13.5 110.7 6.5 88.2 26.5 68.9 46.5 52.3 66.5 37.9 86.5 25.3 106.5 14.0 -33.0 136.2 -13.0 110.1 7.0 87.7 27.0 68.4 47.0 51.9 67.0 37.6 87.0 25.0 107.0 13.7 -32.5 135.5 -12.5 109.5 7.5 87.2 27.5 68.0 47.5 51.5 67.5 37.2 87.5 24.7 107.5 13.4 -32.0 134.8 -12.0 108.9 8.0 86.6 28.0 67.5 48.0 51.1 68.0 36.9 88.0 24.4 108.0 13.2 -31.5 134.1 -11.5 108.3 8.5 86.1 28.5 67.1 48.5 50.7 68.5 36.6 88.5 24.1 108.5 12.9 -31.0 133.4 -11.0 107.7 9.0 85.6 29.0 66.7 49.0 50.4 69.0 36.2 89.0 23.8 109.0 12.6 -30.5 132.7 -10.5 107.1 9.5 85.1 29.5 66.2 49.5 50.0 69.5 35.9 89.5 23.5 109.5 12.4 -30.0 132.0 -10.0 106.5 10.0 84.6 30.0 65.8 50.0 49.6 70.0 35.6 90.0 23.2 110.0 12.1 -29.5 131.4 -9.5 105.9 10.5 84.1 30.5 65.3 50.5 49.2 70.5 35.3 90.5 23.0 110.5 11.8 -29.0 130.7 -9.0 105.3 11.0 83.6 31.0 64.9 51.0 48.9 71.0 34.9 91.0 22.7 111.0 11.6 -28.5 130.0 -8.5 104.8 11.5 83.1 31.5 64.5 51.5 48.5 71.5 34.6 91.5 22.4 111.5 11.3 -28.0 129.3 -8.0 104.2 12.0 82.6 32.0 64.1 52.0 48.1 72.0 34.3 92.0 22.1 112.0 11.0 -27.5 128.6 -7.5 103.6 12.5 82.1 32.5 63.6 52.5 47.7 72.5 34.0 92.5 21.8 112.5 10.8 -27.0 128.0 -7.0 103.0 13.0 81.6 33.0 63.2 53.0 47.4 73.0 33.6 93.0 21.5 113.0 10.5 -26.5 127.3 -6.5 102.4 13.5 81.1 33.5 62.8 53.5 47.0 73.5 33.3 93.5 21.2 113.5 10.2 -26.0 126.6 -6.0 101.9 14.0 80.6 34.0 62.4 54.0 46.6 74.0 33.0 94.0 20.9 114.0 10.0 -25.5 126.0 -5.5 101.3 14.5 80.1 34.5 61.9 54.5 46.3 74.5 32.7 94.5 20.7 114.5 9.7 -25.0 125.3 -5.0 100.7 15.0 79.6 35.0 61.5 55.0 45.9 75.0 32.4 95.0 20.4 115.0 9.4 -24.5 124.6 -4.5 100.1 15.5 79.1 35.5 61.1 55.5 45.6 75.5 32.0 95.5 20.1 115.5 9.2 -24.0 124.0 -4.0 99.6 16.0 78.6 36.0 60.7 56.0 45.2 76.0 31.7 96.0 19.8 116.0 8.9 -23.5 123.3 -3.5 99.0 16.5 78.2 36.5 60.3 56.5 44.8 76.5 31.4 96.5 19.5 116.5 8.7 -23.0 122.7 -3.0 98.5 17.0 77.7 37.0 59.8 57.0 44.5 77.0 31.1 97.0 19.2 117.0 8.4 -22.5 122.0 -2.5 97.9 17.5 77.2 37.5 59.4 57.5 44.1 77.5 30.8 97.5 19.0 117.5 8.1 -22.0 121.4 -2.0 97.3 18.0 76.7 38.0 59.0 58.0 43.8 78.0 30.5 98.0 18.7 118.0 7.9 -21.5 120.7 -1.5 96.8 18.5 76.2 38.5 58.6 58.5 43.4 78.5 30.2 98.5 18.4 118.5 7.6 -21.0 120.1 -1.0 96.2 19.0 75.8 39.0 58.2 59.0 43.1 79.0 29.9 99.0 18.1 119.0 7.3 -20.5 119.4 -0.5 95.7 19.5 75.3 39.5 57.8 59.5 42.7 79.5 29.5 99.5 17.8 119.5 7.1 -20.0 118.8 0.0 95.1 20.0 74.8 40.0 57.4 60.0 42.4 80.0 29.2 100.0 17.6 120.0 6.8 © 2008 Microchip Technology Inc. DS22114A-page 15 MCP9509/10 4.6 Application Information The MCP9509/10 temperature switch integrates a temperature sensor and a comparator circuit which outputs an alert signal when the user programmed temperature threshold is exceeded. The external resistor value to set the output threshold can be determined using Table 4-2. A constant current source ISET = 5 µA (typical) biases the external resistor RSET. A thermal diode is used to measure ambient temperature. When the voltage across the thermal diode exceeds the voltage across RSET, VSET, the sensor output asserts. The sensor output de-asserts when the diode voltage drops below VSET and the user selected hysteresis level. The MCP9509/10 provide Open-drain output where multiple sensors from multiple PCB hot-spots can be connected to a single processor I/O input with a wired-Or Configuration. The MCP9509 requires an external pull-up resistor which can be used to level-shift the alert signal. For example, if the sensors are powered with 5VDD and the controller or processor is powered with 3VDD, the external resistor can be level-shifted by connecting 3VDD to the pull-up resistor as shown in Figure 4-5. The MCP9510 elliminates the need for an external resistor while providing wired-Or function (Figure 4-6). The MCP9510 also provides push-pull output configuration for a direct connection to the processor with Active-Low or Active-High assert polarities. HYST 5VDD MCP9509 OUT SET 3VDD RPULL_UP RSET 3VDD I/O HYST 5VDD Microcontroller MCP9509 OUT SET RSET FIGURE 4-5: MCP9509 Wired-Or Output Configuration with Level-shift. DS22114A-page 16 HYST 5VDD MCP9510 OUT SET 5VDD RSET OUTSET HYST I/O Microcontroller 5VDD MCP9510 OUT SET RSET OUTSET FIGURE 4-6: MCP9510 Wired-Or Output Configuration with Internal Pull-up Resistor. 4.6.1 LAYOUT CONSIDERATION AND THERMAL CONSIDERATION This family of sensors measure temperature by monitoring the voltage level of a thermal diode located in the die. A low-impedance thermal path between the die and the PCB is provided by the pins. Therefore, the sensor effectively monitors PCB temperature. For efficient performance, it is recommended to layout the device as close to the heat source as possible. It is also recommended to use a de-coupling capacitor of 0.1 µF to 1 µF between VDD and GND pins for stability. When connecting an external resistor to the MCP9509 device, the current through the pull-up resistor must be considered to prevent self-heat due to power. This can be determined using Equation 4-3. EQUATION 4-3: EFFECT OF SELF-HEATING T J – T A = θ JA ( V DD × I DD + V OL × I OUT ) Where: TJ = Junction Temperature TA = Ambient Temperature θJA = Package Thermal Resistance (220.7 °C/W) VOL = Sensor Output Low Voltage IOUT = Output Current © 2008 Microchip Technology Inc. MCP9509/10 6 MCP9509/10 Power Supply Rejection 5 4 No False Trigger 3 2 VDD = 5V + 400mVAC VDD = 5V + 400mVSQR 10 00 10 000 10 000 0 10 000 00 10 000 000 10M 100 1M 10 100 0 10 1 1k The OUTSET pin can be controlled using a Microcontroller input/output (I/O) pin. I/O levels HIGH and LOW provide push-pull configuration with Active-High and Active-Low outputs, respectively. The Open-Drain output with internal pull-up resistor can be selected by configuring the I/O pin as a High-Impedance Input. The Open-Drain output can also be selected by forcing voltage level VOSET from a low impedance source. With this configuration, there maybe some leakage current due to impedance mismatch, (See Figure 4-2). The MCP9509/10 family of sensors are designed to prevent false output trigger due to high frequency power supply or system noise. Figure 4-7 shows device performance with a high frequency signal added on VDD. The output is not triggered due to the signal added on VDD. With some applications, it is recommended to add a bypass capacitor of 0.1 µF to 1 µF. 100 DRIVING OUTSET WITH A MICROCONTROLLER I/O PIN POWER SUPPLY REJECTION 10 4.6.2 4.6.3 Output Voltage (V) For example, at room temperature, when output asserts Active-Low and maximum IDD = 50 µA, VDD = 5.5V, VOL = 0.3V and IOUT = 5 mA (see specification table), the self heating due to power dissipation (TJ - TA) is ~0.4°C. Frequency (Hz) FIGURE 4-7: (PSR). © 2008 Microchip Technology Inc. Power Supply Rejection DS22114A-page 17 MCP9509/10 NOTES: DS22114A-page 18 © 2008 Microchip Technology Inc. MCP9509/10 5.0 PACKAGING INFORMATION 5.1 Package Marking Information 5-Lead SOT-23 5 Example: 4 5 Device XXNN 1 2 Code MCP9509CT-E/OT AQNN MCP9509HT-E/OT BPNN 3 3 Code MCP9510CT-E/CH AKNN MCP9510HT-E/CH ALNN AK25 1 Legend: XX...X Y YY WW NNN e3 * Note: 2 Example Part Number 1 AQ25 1 6-Lead SOT-23 XXNN 4 Customer-specific information Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week ‘01’) Alphanumeric traceability code Pb-free JEDEC designator for Matte Tin (Sn) This package is Pb-free. The Pb-free JEDEC designator ( e3 ) can be found on the outer packaging for this package. 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. © 2008 Microchip Technology Inc. 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