MCP1541

MCP1525/41 2.5V and 4.096V Voltage References Features • • • • • • • • Precision Voltage Reference Output Voltages: 2.5V and 4.096V Initial Accuracy: ±1% (max.) Temperature Drift: ±50 ppm/°C (max.) Output Current Drive: ±2 mA Maximum Input Current: 100 µA @ +25°C (max.) Packages: TO-92 and SOT-23-3 Industrial Temperature Range: -40°C to +85°C Description The Microchip Technology Inc. MCP1525/41 devices are 2.5V and 4.096V precision voltage references that use a combination of an advanced CMOS circuit design and EPROM trimming to provide an initial tolerance of ±1% (max.) and temperature stability of ±50 ppm/°C (max.). In addition to a low quiescent current of 100 µA (max.) at 25°C, these devices offer a clear advantage over the traditional Zener techniques in terms of stability across time and temperature. The output voltage is 2.5V for the MCP1525 and 4.096V for the MCP1541. These devices are offered in SOT-23-3 and TO-92 packages, and are specified over the industrial temperature range of -40°C to +85°C. Applications • • • • • • • • • • Battery-powered Systems Handheld Instruments Instrumentation and Process Control Test Equipment Data Acquisition Systems Communications Equipment Medical Equipment Precision Power supplies 8-bit, 10-bit, 12-bit A/D Converters (ADCs) D/A Converters (DACs) Temperature Drift 2.525 2.520 2.515 2.510 2.505 2.500 2.495 2.490 2.485 2.480 2.475 4.140 4.130 4.120 4.110 MCP1541 4.100 4.090 4.080 MCP1525 4.070 4.060 4.050 4.040 -50 -25 0 25 50 75 100 Ambient Temperature (°C) MCP1525 Output Voltage (V) MCP1541 Output Voltage (V) Typical Application Circuit VDD CIN 0.1 µF (optional) VREF MCP1525 MCP1541 VIN VSS VOUT CL 1 µF to 10 µF Basic Configuration Package Types MCP1525 MCP1541 TO-92 MCP1525 MCP1541 SOT-23-3 VIN 1 3 VSS VOUT 2 123 VOUT VSS VIN © 2005 Microchip Technology Inc. DS21653B-page 1 MCP1525/41 1.0 ELECTRICAL CHARACTERISTICS † Notice: Stresses above those listed under “Absolute 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 † VIN – VSS ..........................................................................7.0V Input Current (VIN) .......................................................20 mA Output Current (VOUT) .............................................. ±20 mA Continuous Power Dissipation (TA = 125°C)............. 140 mW All Inputs and Outputs .....................VSS – 0.6V to VIN + 1.0V Storage Temperature.....................................-65°C to +150°C Maximum Junction Temperature (TJ) .......................... +125°C ESD protection on all pins (HBM) .....................................≥ 4 kV DC ELECTRICAL SPECIFICATIONS Electrical Characteristics: Unless otherwise indicated, TA = +25°C, VIN = 5.0V, VSS = GND, IOUT = 0 mA and CL = 1 µF. Parameter Output Output Voltage, MCP1525 Output Voltage, MCP1541 Output Voltage Drift Long-Term Output Stability Load Regulation Sym VOUT VOUT TCVOUT VOUT ΔVOUT/ΔIOUT ΔVOUT/ΔIOUT ΔVOUT/ΔIOUT ΔVOUT/ΔIOUT Min 2.475 4.055 — — — — — — — — — — — Typ 2.5 4.096 27 2 0.5 0.6 — — 115 ±8 137 107 — Max 2.525 4.137 50 — 1 1 1.3 1.3 — — — 300 350 Units V V ppm/°C ppm/hr mV/mA mV/mA mV/mA mV/mA ppm mA mV µV/V µV/V Conditions 2.7V ≤ VIN ≤ 5.5V 4.3V ≤ VIN ≤ 5.5V TA = -40°C to 85°C (Note 1) Exposed 1008 hrs @ +125°C (see Figure 1-1), measured @ +25°C IOUT = 0 mA to -2 mA IOUT = 0 mA to 2 mA IOUT = 0 mA to -2 mA, TA = -40°C to 85°C IOUT = 0 mA to 2 mA, TA = -40°C to 85°C Note 2 TA = -40°C to 85°C, VIN = 5.5V IOUT = 2 mA VIN = 2.7V to 5.5V for MCP1525, VIN = 4.3V to 5.5V for MCP1541 VIN = 2.7V to 5.5V for MCP1525, VIN = 4.3V to 5.5V for MCP1541, TA = -40°C to 85°C TA = -40°C to 85°C TA = -40°C to 85°C No load No load, TA = -40°C to 85°C Output Voltage Hysteresis Maximum Load Current Input-to-Output Dropout Voltage Line Regulation VHYS ISC VDROP ΔVOUT/ΔVIN ΔVOUT/ΔVIN Input Input Voltage, MCP1525 Input Voltage, MCP1541 Input Current Note 1: 2: VIN VIN IIN IIN 2.7 4.3 — — — — 86 95 5.5 5.5 100 120 V V µA µA Output temperature coefficient is measured using a “box” method, where the +25°C output voltage is trimmed as close to typical as possible. The 85°C output voltage is then again trimmed to zero out the tempco. Output Voltage Hysteresis is defined as the change in output voltage measured at +25°C before and after cycling the temperature to +85°C and -40°C; refer to Section 1.1.10 “Output Voltage Hysteresis”. DS21653B-page 2 © 2005 Microchip Technology Inc. MCP1525/41 AC ELECTRICAL SPECIFICATIONS Electrical Characteristics: Unless otherwise indicated, TA = +25°C, VIN = 5.0V, VSS = GND, IOUT = 0 mA and CL = 1 µF. Parameter AC Response Bandwidth Input Capacitor Load Capacitor Noise MCP1525 Output Noise Voltage MCP1541 Output Noise Voltage Note 1: 2: Sym BW CIN CL Eno Eno Eno Eno Min — — 1 — — — — Typ 100 0.1 — 90 500 145 700 Max — — 10 — — — — Units kHz µF µF µVP-P µVP-P µVP-P µVP-P Notes 1 Notes 2 Conditions Input and Load Capacitors (see Figure 4-1) 0.1 Hz to 10 Hz 10 Hz to 10 kHz 0.1 Hz to 10 Hz 10 Hz to 10 kHz The input capacitor is optional; Microchip recommends using a ceramic capacitor. These parts are tested at both 1 µF and 10 µF to ensure proper operation over this range of load capacitors. A wider range of load capacitor values has been characterized successfully, but is not tested in production. TEMPERATURE SPECIFICATIONS Electrical Characteristics: Unless otherwise indicated, TA = +25°C, VIN = 5.0V and VSS = GND. Parameter Temperature Ranges Specified Temperature Range Operating Temperature Range Storage Temperature Range Thermal Package Resistances Thermal Resistance, TO-92 Thermal Resistance, SOT-23-3 Note 1: Sym TA TA TA θJA θJA Min -40 -40 -65 — — Typ — — — 132 336 Max +85 +125 +150 — — Units °C °C °C °C/W °C/W Note 1 Conditions These voltage references operate over the Operating Temperature Range, but with reduced performance. In any case, the internal Junction Temperature (TJ) must not exceed the Absolute Maximum specification of +150°C. 1.1 1.1.1 Specification Descriptions and Test Circuits OUTPUT VOLTAGE 1.1.3 OUTPUT VOLTAGE DRIFT (TCVOUT) Output voltage is the reference voltage that is available on the output pin (VOUT). The output temperature coefficient or voltage drift is a measure of how much the output voltage (VOUT) will vary from its initial value with changes in ambient temperature. The value specified in the electrical specifications is measured and equal to: 1.1.2 INPUT VOLTAGE EQUATION 1-1: Δ V OUT ⁄ V NOM TCV OUT = -----------------------------------Δ TA Where: VNOM = 2.5V, MCP1525 VNOM = 4.096V, MCP1541 ( ppm ⁄ ° C ) The input (operating) voltage is the range of voltage that can be applied to the VIN pin and still have the device produce the designated output voltage on the VOUT pin. © 2005 Microchip Technology Inc. DS21653B-page 3 MCP1525/41 1.1.4 DROPOUT VOLTAGE 1.1.9 LONG-TERM OUTPUT STABILITY The dropout voltage of these devices is measured by reducing VIN to the point where the output drops by 1%. Under these conditions the dropout voltage is equal to: The long-term output stability is measured by exposing the devices to an ambient temperature of 125°C (Figure 2-9) while configured in the circuit shown in Figure 1-1. In this test, all electrical specifications of the devices are measured periodically at +25°C. VIN = 5.5V by ambient MCP1525 MCP1541 VIN VOUT VSS CL 1 µF ±2 mA square wave @ 10 Hz RL EQUATION 1-2: V DROP = VIN – V OUT The dropout voltage is affected temperature and load current. In Figure 2-18, the dropout voltage is shown over a negative and positive range of output current. For currents above zero milliamps, the dropout voltage is positive. In this case, the voltage reference is primarily powered by VIN. With output currents below zero milliamps, the dropout voltage is negative. As the output current becomes more negative, the input current (IIN) reduces. Under this condition, the output current begins to provide the needed power to the voltage reference. FIGURE 1-1: Configuration. 1.1.10 Dynamic Life Test OUTPUT VOLTAGE HYSTERESIS 1.1.5 LINE REGULATION Line regulation is a measure of the change in output voltage (VOUT) as a function of a change in the input voltage (VIN). This is expressed as ΔVOUT/ΔVIN and is measured in either µV/V or ppm. For example, a 1 µV change in VOUT caused by a 500 mV change in VIN would net a ΔVOUT/ΔVIN of 2 µV/V, or 2 ppm. The output voltage hysteresis is a measure of the output voltage error once the powered devices are cycled over the entire operating temperature range. The amount of hysteresis can be quantified by measuring the change in the +25°C output voltage after temperature excursions from +25°C to +85°C to +25°C and also from +25°C to -40°C to +25°C. 1.1.6 LOAD REGULATION (ΔVOUT/ΔIOUT) Load regulation is a measure of the change in the output voltage (VOUT) as a function of the change in output current (IOUT). Load regulation is usually measured in mV/mA. 1.1.7 INPUT CURRENT The input current (operating current) is the current that sinks from VIN to VSS without a load current on the output pin. This current is affected by temperature and the output current. 1.1.8 INPUT VOLTAGE REJECTION RATIO The Input Voltage Rejection Ratio (IVRR) is a measure of the change in output voltage versus the change in input voltage over frequency, as shown in Figure 2-7. The calculation used for this plot is: EQUATION 1-3: V IN IVRR = 20 log ------------V OUT ( dB ) DS21653B-page 4 © 2005 Microchip Technology Inc. MCP1525/41 2.0 Note: TYPICAL PERFORMANCE CURVES 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. Note: Unless otherwise indicated, TA = +25°C, VIN = 5.0V, VSS = GND, IOUT = 0 mA and CL = 1 µF. 2.525 2.520 2.515 2.510 2.505 2.500 2.495 2.490 2.485 2.480 2.475 4.140 4.130 4.120 4.110 MCP1541 4.100 4.090 4.080 MCP1525 4.070 4.060 4.050 4.040 -50 -25 0 25 50 75 100 Ambient Temperature (°C) 140 MCP1541 Output Voltage (V) Line Regulation (µV/V) 120 100 80 60 40 20 0 -50 -25 0 25 50 75 Ambient Temperature (°C) 100 MCP1541 VIN = 4.3V to 5.5V FIGURE 2-1: Temperature. 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 MCP1525 Output Voltage (V) MCP1525 VIN = 2.7V to 5.5V Output Voltage vs. Ambient FIGURE 2-4: Temperature. 7 Line Regulation vs. Ambient Load Regulation (mV/mA) MCP1525 and MCP1541 MCP1525 and MCP1541 Output Impedance ( ) 6 5 4 3 2 1 IOUT = -2 mA IOUT = +2 mA Source Current = 0 mA to 2 mA Sink Current = 0 mA to -2 mA -50 -25 0 25 50 75 Ambient Temperature (°C) 100 0 1 10 100 1k 10k 100k 1M 1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 Frequency (Hz) FIGURE 2-2: Load Regulation vs. Ambient Temperature. 100 90 80 70 60 50 40 30 20 10 0 -50 -25 FIGURE 2-5: Frequency. Output Noise Voltage Density (μV/ Hz) 1,000 Output Impedance vs. MCP1541 MCP1525 Input Current (µA) MCP1541 100 MCP1525 10 1 0 25 50 75 Ambient Temperature (°C) 100 0.1 1 10 100 1k Frequency (Hz) 10k 100k FIGURE 2-3: Temperature. Input Current vs. Ambient FIGURE 2-6: Output Noise Voltage Density vs. Frequency. © 2005 Microchip Technology Inc. DS21653B-page 5 MCP1525/41 Note: Unless otherwise indicated, TA = +25°C, VIN = 5.0V, VSS = GND, IOUT = 0 mA and CL = 1 µF. Input Voltage Rejection Ratio (dB) 90 MCP1525 4.0975 Output Voltage (V) 4.0970 4.0965 4.0960 4.0955 MCP1541 80 70 60 50 40 30 1 1.E+00 MCP1541 10 1.E+01 100 1k 1.E+02 1.E+03 Frequency (Hz) 10k 1.E+04 100k 1.E+05 4.0950 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 Output Current (mA) 1.5 2.0 FIGURE 2-7: Input Voltage Rejection Ratio vs. Frequency. MCP1541 Output Voltage (V) 2.506 2.505 2.504 2.503 MCP1525 Output Voltage (V) 2.502 2.501 2.500 2.499 2.498 2.5 3.0 3.5 4.0 4.5 5.0 5.5 Input Voltage (V) IOUT = +2 mA IOUT = 0 mA IOUT = -2 mA FIGURE 2-10: MCP1541 Output Voltage vs. Output Current. 2.5015 Output Voltage (V) 2.5010 2.5005 2.5000 2.4995 2.4990 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 Output Current (mA) 4.098 4.097 4.096 4.095 4.094 4.093 4.092 4.091 4.090 MCP1525 1.5 2.0 FIGURE 2-8: Voltage. 10 8 6 4 2 0 -2 -4 -6 -8 -10 0 Output Voltage vs. Input FIGURE 2-11: MCP1525 Output Voltage vs. Output Current. Maximum Load Current (mA) 10.0 9.5 9.0 MCP1525 Sink MCP1541 Output Voltage Aging (mV) MCP1525 600 Samples Life Test (TA = +125°C) +3σ Average -3σ 8.5 8.0 7.5 Source MCP1541 7.0 2.5 3.0 3.5 4.0 4.5 Input Voltage (V) 5.0 5.5 200 400 600 Time (hr) 800 1000 FIGURE 2-9: Output Voltage Aging vs. Time (MCP1525 Device Life Test data). FIGURE 2-12: Input Voltage. Maximum Load Current vs. DS21653B-page 6 © 2005 Microchip Technology Inc. MCP1525/41 Note: Unless otherwise indicated, TA = +25°C, VIN = 5.0V, VSS = GND, IOUT = 0 mA and CL = 1 µF. Output Current (mA) 100 90 80 70 60 50 40 30 20 10 0 2.5 3.0 4 2 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 35 30 25 20 15 10 5 0 -5 -10 -15 -20 MCP1541 Input Current (µA) IOUT MCP1525 ΔVOUT MCP1525 3.5 4.0 4.5 Input Voltage (V) 5.0 5.5 Time (100 µs/div) FIGURE 2-13: Voltage. MCP1541 Output Noise Voltage (20 µV/div) Input Current vs. Input FIGURE 2-16: Response. 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 Input Voltage (V) MCP1525 Load Transient Bandwidth = 0.1 Hz to 10 Hz Eno = 22 µVRMS = 145 µVP-P VIN ΔVOUT MCP1525 16 14 12 10 8 6 4 2 0 -2 -4 -6 -8 Time (1 s/div) Time (100 µs/div) FIGURE 2-14: Output Noise. 6 MCP1541 0.1 Hz to 10 Hz FIGURE 2-17: Response. 150 MCP1525 Line Transient MCP1525 and MCP1541 Dropout Voltage (mV) 5 4 Voltage (V) 3 2 1 0 -1 Time (200 µs/div) VIN VOUT, MCP1541 100 50 0 -50 -100 -150 -2.0 VOUT, MCP1525 -1.5 -1.0 -0.5 0.0 0.5 1.0 Output Current (mA) 1.5 FIGURE 2-15: Turn-on Transient Time. FIGURE 2-18: Current. Dropout Voltage vs. Output © 2005 Microchip Technology Inc. DS21653B-page 7 Change in Output Voltage (mV) 2.0 Change in Output Voltage (mV) MCP1525/41 3.0 PIN DESCRIPTIONS Descriptions of the pins are listed in Table 3-1. TABLE 3-1: PIN FUNCTION TABLE. MCP1525, MCP1541 (SOT-23-3) 1 2 3 Symbol VIN VOUT VSS Description Input Voltage (or Positive Power Supply) Output Voltage (or Reference Voltage) Ground (or Negative Power Supply) MCP1525, MCP1541 (TO-92-3) 3 2 1 3.1 Input Voltage (VIN) 3.3 Ground (VSS) VIN functions as the positive power supply input (or operating input). An optional 0.1 µF ceramic capacitor can be placed at this pin if the input voltage is too noisy; it needs to be within 5 mm of this pin. The input voltage needs to be at least 0.2V higher than the output voltage for normal operation. Normally connected directly to ground. It can be placed at another voltage as long as all of the voltages shift with it, and proper bypassing is observed. 3.2 Output Voltage (VOUT) VOUT is an accurate reference voltage output. It can source and sink small currents, and has a low output impedance. A load capacitor between 1 µF and 10 µF needs to be located within 5 mm of this pin. DS21653B-page 8 © 2005 Microchip Technology Inc. MCP1525/41 4.0 4.1 4.1.1 APPLICATIONS INFORMATION Application Tips BASIC CIRCUIT CONFIGURATION 4.1.4 PRINTED CIRCUIT BOARD LAYOUT CONSIDERATIONS The MCP1525 and MCP1541 voltage reference devices should be applied as shown in Figure 4-1 in all applications. VDD CIN 0.1 µF (optional) VREF MCP1525 MCP1541 VIN VSS VOUT CL 1 µF to 10 µF Mechanical stress due to Printed Circuit Board (PCB) mounting can cause the output voltage to shift from its initial value. Devices in the SOT-23-3 package are generally more prone to assembly stress than devices in the TO-92 package. To reduce stress-related output voltage shifts, mount the reference on low-stress areas of the PCB (i.e., away from PCB edges, screw holes and large components). 4.1.5 OUTPUT FILTERING If the noise at the output of these voltage references is too high for the particular application, it can be easily filtered with an external RC filter and op amp buffer. The op amp’s input and output voltage ranges need to include the reference output voltage. VDD MCP1525 MCP1541 VIN VOUT VSS CL 10 µF CFIL 1 µF MCP6021 FIGURE 4-1: Basic Circuit Configuration. As shown in Figure 4-1, the input voltage is connected to the device at the VIN input, with an optional 0.1 µF ceramic capacitor. This capacitor would be required if the input voltage has excess noise. A 0.1 µF capacitor would reject input voltage noise at approximately 1 to 2 MHz. Noise below this frequency will be amply rejected by the input voltage rejection of the voltage reference. Noise at frequencies above 2 MHz will be beyond the bandwidth of the voltage reference and, consequently, not transmitted from the input pin through the device to the output. The load capacitance (CL) is required in order to stabilize the voltage reference; see Section 4.1.3 “Load Capacitor”. RFIL 10 kW VDD VREF FIGURE 4-2: Filter. Output Noise-Reducing The RC filter values are selected for a desired cutoff frequency: EQUATION 4-1: 1 fC = -----------------------------2 π R FIL CFIL The values that are shown in Figure 4-2 (10 kΩ and 1 µF) will create a first-order, low-pass filter at the output of the amplifier. The cutoff frequency of this filter is 15.9 Hz, and the attenuation slope is 20 dB/decade. The MCP6021 amplifier isolates the loading of this lowpass filter from the remainder of the application circuit. This amplifier also provides additional drive, with a faster response time than the voltage reference. 4.1.2 INPUT (BYPASS) CAPACITOR The MCP1525 and MCP1541 voltage references do not require an input capacitor across VIN to VSS. However, for added stability and input voltage transient noise reduction, a 0.1 µF ceramic capacitor is recommended, as shown in Figure 4-1. This capacitor should be close to the device (within 5 mm of the pin). 4.1.3 LOAD CAPACITOR The output capacitor from VOUT to VSS acts as a frequency compensation for the references and cannot be omitted. Use load capacitors between 1 µF and 10 µF to compensate these devices. A 10 µF output capacitor has slightly better noise, and provides additional charge for fast load transients, when compared to a 1 µF output capacitor. This capacitor should be close to the device (within 5 mm of the pin). © 2005 Microchip Technology Inc. DS21653B-page 9 MCP1525/41 4.2 4.2.1 Typical Application Circuits NEGATIVE VOLTAGE REFERENCE 4.2.2 A/D CONVERTER REFERENCE A negative precision voltage reference can be generated by using the MCP1525 or MCP1541 in the configuration shown in Figure 4-3. VDD = 5.0V MCP1525 MCP1541 VIN VOUT VSS CL 10 µF VREF MCP606 R1 10 kΩ 0.1% R2 10 kΩ 0.1% The MCP1525 and MCP1541 were carefully designed to provide a voltage reference for Microchip’s 10-bit and 12-bit families of ADCs. The circuit shown in Figure 4-4 shows a MCP1541 configured to provide the reference to the MCP3201, a 12-bit ADC. CIN 0.1 µF CL 10 µF VDD = 5.0V MCP1541 VIN VOUT VSS 10 µF VREF VIN IN+ MCP3201 IN– 3 0.1 µF to PICmicro® Microcontroller VSS = - 5.0V VREF = -2.5V, MCP1525 VREF = -4.096V, MCP1541 FIGURE 4-3: Reference. Negative Voltage FIGURE 4-4: ADC Reference Circuit. In this circuit, the voltage inversion is implemented using the MCP606 and two equal resistors. The voltage at the output of the MCP1525 or MCP1541 voltage reference drives R1, which is connected to the inverting input of the MCP606 amplifier. Since the non-inverting input of the amplifier is biased to ground, the inverting input will also be close to ground potential. The second 10 kΩ resistor is placed around the feedback loop of the amplifier. Since the inverting input of the amplifier is high-impedance, the current generated through R1 will also flow through R2. As a consequence, the output voltage of the amplifier is equal to -2.5V for the MCP1525 and -4.1V for the MCP1541. DS21653B-page 10 © 2005 Microchip Technology Inc. MCP1525/41 5.0 5.1 PACKAGING INFORMATION Package Marking Information 3-Lead TO-92 (Leaded) XXXXXX XXXXXX XXYYWW NNN Example: MCP 1525I TO0544 256 3-Lead TO-92 (Lead Free) XXXXXX XXXXXX XXXXXX YWWNNN Example: MCP 1525I e3 TO^^ 544256 3-Lead SOT-23-3 Example: XXNN Device MCP1525 MCP1541 Note: I-Temp Code VANN VBNN VA25 Applies to 3-Lead SOT-23. Legend: XX...X Y YY WW NNN e3 * 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. 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. © 2005 Microchip Technology Inc. DS21653B-page 11 MCP1525/41 3-Lead Plastic Transistor Outline (TO) (TO-92) E1 D 1 n L 1 2 3 B p c α A R β INCHES* NOM MILLIMETERS NOM 3 1.27 3.30 3.62 4.45 4.71 4.32 4.64 2.16 2.29 12.70 14.10 0.36 0.43 0.41 0.48 4 5 2 3 Number of Pins 3 Pitch .050 Bottom to Package Flat A .130 .143 .155 Overall Width E1 .175 .186 .195 Overall Length D .170 .183 .195 Molded Package Radius R .085 .090 .095 Tip to Seating Plane L .500 .555 .610 c Lead Thickness .014 .017 .020 Lead Width B .016 .019 .022 α 4 5 6 Mold Draft Angle Top β Mold Draft Angle Bottom 2 3 4 *Controlling Parameter Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side. JEDEC Equivalent: TO-92 Drawing No. C04-101 Units Dimension Limits n p MIN MAX MIN MAX 3.94 4.95 4.95 2.41 15.49 0.51 0.56 6 4 DS21653B-page 12 © 2005 Microchip Technology Inc. MCP1525/41 3-Lead Plastic Small Outline Transistor (TT) (SOT23) E E1 2 B n p p1 D 1 α c A A2 φ β L A1 Units Dimension Limits n Number of Pins p Pitch p1 Outside lead pitch (basic) Overall Height A Molded Package Thickness A2 Standoff § A1 Overall Width E Molded Package Width E1 Overall Length D Foot Length L φ Foot Angle c Lead Thickness Lead Width Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter § Significant Characteristic B α β MIN INCHES* NOM 3 .038 .076 .040 .037 .002 .093 .051 .115 .018 5 .006 .017 5 5 MAX MIN .035 .035 .000 .083 .047 .110 .014 0 .004 .015 0 0 .044 .040 .004 .104 .055 .120 .022 10 .007 .020 10 10 MILLIMETERS NOM 3 0.96 1.92 0.89 1.01 0.88 0.95 0.01 0.06 2.10 2.37 1.20 1.30 2.80 2.92 0.35 0.45 0 5 0.09 0.14 0.37 0.44 0 5 0 5 MAX 1.12 1.02 0.10 2.64 1.40 3.04 0.55 10 0.18 0.51 10 10 Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side. JEDEC Equivalent: TO-236 Drawing No. C04-104 © 2005 Microchip Technology Inc. DS21653B-page 13 MCP1525/41 NOTES: DS21653B-page 14 © 2005 Microchip Technology Inc. MCP1525/41 APPENDIX A: REVISION HISTORY Revision B (February 2005) The following is the list of modifications: 1. 2. Added bandwidth and capacitor specifications (Section 1.0 “Electrical Characteristics”). Moved Section 1.1 “Specification Descriptions and Test Circuits” to the specifications section (Section 1.0 “Electrical Characteristics”). Corrected plots in Section 2.0 “Typical Performance Curves”. Added Section 3.0 “Pin Descriptions”. Corrected package markings in Section 5.0 “Packaging Information”. Added Appendix A: “Revision History”. 3. 4. 5. 6. Revision A (July 2001) • Original Release of this Document. © 2005 Microchip Technology Inc. DS21653B-page 15 MCP1525/41 NOTES: DS21653B-page 16 © 2005 Microchip Technology Inc. MCP1525/41 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO. Device X Temperature Range /XX Package Examples: a) MCP1525T-I/TT: Tape and Reel, Industrial Temperature, SOT23 package. Industrial Temperature, TO-92 package. Tape and Reel, Industrial Temperature, SOT23 package. Industrial Temperature, TO-92 package. b) Device MCP1525: MCP1541: = 2.5V Voltage Reference = 4.096 Voltage Reference MCP1525-I/TO: MCP1541T-I/TT: c) Temperature Range I = -40°C to +85°C d) MCP1541-I/TO: Package TO = TO-92, Plastic Transistor Outline, 3-Lead TT = SOT23, Plastic Small Outline Transistor, 3-Lead © 2005 Microchip Technology Inc. DS21653B-page 17 MCP1525/41 NOTES: DS21653B-page 18 © 2005 Microchip Technology Inc. Note the following details of the code protection feature on Microchip devices: • • Microchip products meet the specification contained in their particular Microchip Data Sheet. Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. Microchip is willing to work with the customer who is concerned about the integrity of their code. Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.” • • • Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip’s products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, Accuron, dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro, PICSTART, PRO MATE, PowerSmart, rfPIC, and SmartShunt are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. AmpLab, FilterLab, Migratable Memory, MXDEV, MXLAB, PICMASTER, SEEVAL, SmartSensor and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Analog-for-the-Digital Age, Application Maestro, dsPICDEM, dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP, ICEPIC, MPASM, MPLIB, MPLINK, MPSIM, PICkit, PICDEM, PICDEM.net, PICLAB, PICtail, 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. © 2005, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received ISO/TS-16949:2002 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona and Mountain View, California in October 2003. The Company’s quality system processes and procedures are for its PICmicro® 8-bit MCUs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified. © 2005 Microchip Technology Inc. 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