Datasheet

ManualsBrandsMicrochip ManualsIntegrated Circuits (ICs)Voltage Supervisor 1 ... 5.5V 1.75uA Open Drain

 2004-2014 Microchip Technology Inc. DS20001906D-page 1

MCP102/103/121/131

Features:

• Ultra-Low Supply Current: 1.75 µA

(steady-state maximum)

• Precision Monitoring Options of:

- 1.90V, 2.32V, 2.63V, 2.93V, 3.08V, 4.38V and

4.63V

• Resets Microcontroller in a Power-Loss Event

•RST

Pin (active-low):

- MCP121: Active-low, Open-drain

- MCP131: Active-low, Open-drain with Inter-

nal Pull-up Resistor

- MCP102 and MCP103: Active-low, Push-pull

• Reset Delay Timer (120 ms delay, typical)

• Available in SOT-23, TO-92 and SC70 Packages

• Temperature Range:

- Extended: -40°C to +125°C

(except MCP1XX-195)

- Industrial: -40°C to +85°C (MCP1XX-195 only)

• Pb-free Devices

Applications:

• Critical Microcontroller and Microprocessor

Power-monitoring Applications

• Computers

• Intelligent Instruments

• Portable Battery-powered Equipment

General Description:

The MCP102/103/121/131 devices are voltage

supervisor devices designed to keep a microcontroller

in reset until the system voltage has reached and

stabilized at the proper level for reliable system

operation. Tabl e 1 shows the available features for

these devices.

Package Types

Block Diagram

SOT-23/SC70

RST

MCP102/121/131

RST

TO-92

SOT-23/SC70

MCP103

RST

Comparator

–

Output

Driver

RST

Band Gap

Reference

Reset

Delay

Circuit

(1)

Note: MCP131 only

Micropower Voltage Supervisors

Summary of content (28 pages)

PAGE 1
MCP102/103/121/131 Micropower Voltage Supervisors Features: General Description: • Ultra-Low Supply Current: 1.75 µA (steady-state maximum) • Precision Monitoring Options of: - 1.90V, 2.32V, 2.63V, 2.93V, 3.08V, 4.38V and 4.
PAGE 2
MCP102/103/121/131 TABLE 1: DEVICE FEATURES Output Device Type Pull-up Resistor Reset Delay (typ) Package Pinout (Pin # 1, 2, 3) Comment MCP102 Push-pull No 120 ms RST, VDD, VSS MCP103 Push-pull No 120 ms VSS, RST, VDD 120 ms RST, VDD, VSS MCP131 Open-drain Internal (~95 k) 120 ms RST, VDD, VSS MCP111 Open-drain External No VOUT, VSS, VDD See MCP111/112 Data Sheet (DS21889) MCP112 Push-Pull No VOUT, VSS, VDD See MCP111/112 Data Sheet (DS21889) MCP121 Open-drain External DS200019
PAGE 3
MCP102/103/121/131 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings† VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.0V Input current (VDD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 mA Output current (RST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 4
MCP102/103/121/131 DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise indicated, all limits are specified for: VDD = 1V to 5.5V, RPU = 100 k (MCP121 only), TA = -40°C to +125°C. Parameters VDD Trip Point MCP1XX-195 Sym. Min. Typ. Max. Units VTRIP 1.872 1.900 1.929 V TA = +25°C (Note 1) 1.853 1.900 1.948 V TA = -40°C to +85°C (Note 2) 2.285 2.320 2.355 V TA = +25°C (Note 1) 2.262 2.320 2.378 V Note 2 2.591 2.630 2.670 V TA = +25°C (Note 1) 2.564 2.
PAGE 5
MCP102/103/121/131 VTRIP 1V VDD tRPU tRPD VOH 1V VOL RST tRT FIGURE 1-1: Timing Diagram. AC CHARACTERISTICS Electrical Specifications: Unless otherwise indicated, all limits are specified for: VDD = 1V to 5.5V, RPU = 100 k (MCP121 only), TA = -40°C to +125°C. Parameters Sym. Min. Typ. Max.
PAGE 6
MCP102/103/121/131 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.
PAGE 7
MCP102/103/121/131 Note: Unless otherwise indicated, all limits are specified for: VDD = 1V to 5.5V, RPU = 100 k (MCP121 only; see Figure 4-1), TA = -40°C to +125°C. 16 1.8 MCP102-195 1.6 1.4 IDD (µA) IDD (µA) +85°C 1 +125°C 0.8 0.6 0°C 0 1.0 2.0 3.0 4.0 VDD (V) 5.0 35 MCP131-315 5.0 6.0 0°C -40°C +25°C IDD (µA) 60 +85°C 10 4.0 VDD (V) 70 +70°C 15 3.0 80 +25°C 20 2.0 FIGURE 2-10: IDD vs.VDD (Reset Power-up Timer Active) (MCP102-195). -40°C 0°C MCP131-315 25 IDD (µA) 1.
PAGE 8
MCP102/103/121/131 Note: Unless otherwise indicated, all limits are specified for: VDD = 1V to 5.5V, RPU = 100 k (MCP121; see Figure 4-1), TA = -40°C to +125°C. 1.945 0.050 VTRIP, increasing VDD 1.940 1.935 0.100 0.040 VHYS, Hysteresis 0.030 1.920 0.025 1.915 0.020 1.910 0.015 VTRIP, decreasing VDD 1.905 +125°C +25°C 0.040 0°C -40°C 0.000 0.000 -10 40 90 Temperature (°C) -0.020 0.00 140 FIGURE 2-13: VTRIP vs. Temperature vs. Hysteresis (MCP102-195). 3.200 0.060 0.020 0.005 1.
PAGE 9
MCP102/103/121/131 Note: Unless otherwise indicated, all limits are specified for: VDD = 1V to 5.5V, RPU = 100 k (MCP121 only; see Figure 4-1), TA = -40°C to +125°C. 0.140 2.110 MCP102-195 VDD = 1.7 V 0.120 IOL = 1.00 mA 2.070 IOL = 0.75 mA 0.080 VOH (V) VOL (V) 0.100 0.040 IOL = 0.25 mA 1.990 IOL = 0.00 mA 1.970 +125°C 2.010 -40 0 40 80 Temperature (°C) FIGURE 2-19: VOL vs. Temperature (MCP102-195 @ VDD = 1.7V). +85°C +70°C +25°C 1.950 0.00 120 -40°C 2.030 IOL = 0.50 mA 0.
PAGE 10
MCP102/103/121/131 Note: Unless otherwise indicated, all limits are specified for: VDD = 1V to 5.5V, RPU = 100 k (MCP121 only; see Figure 4-1), TA = -40°C to +125°C. 250 VDD decreasing from: VTRIP(max) + 0.25V to VTRIP(min) – 0.25V 145 MCP121-450 MCP121-450 140 VDD increasing from: 0V – 4.8V 200 tRPU (µs) tRPD (µs) 135 VDD decreasing from: 5V – 0V 150 100 VDD increasing from: 0V – 5.5V 110 -40 -15 10 FIGURE 2-25: (MCP121-450). 35 60 Temperature (°C) 85 110 tRPD vs.
PAGE 11
MCP102/103/121/131 Note: Unless otherwise indicated, all limits are specified for: VDD = 1V to 5.5V, RPU = 100 k (MCP121 only; see Figure 4-1), TA = -40°C to +125°C. 38 MCP121-450 VDD increasing from: 0V – 4.6V tRT (µs) 37.5 VDD increasing from: 0V – 4.8V 37 36.5 36 35.5 VDD increasing from: 0V – 5.5V VDD increasing from: 0V – 5.0V 35 -40 -15 10 35 60 Temperature (°C) FIGURE 2-31: (MCP121-450). 85 110 tRT vs.
PAGE 12
MCP102/103/121/131 3.0 PIN DESCRIPTION The descriptions of the pins are listed in Table 3-1. TABLE 3-1: PIN FUNCTION TABLE Pin No. MCP102 MCP121 MCP131 MCP103 1 2 Symbol RST Function Output State VDD Falling: H = VDD > VTRIP L = VDD < VTRIP VDD Rising: H = VDD > VTRIP + VHYS L = VDD < VTRIP + VHYS 2 3 VDD Positive power supply 3 1 VSS Ground reference DS20001906D-page 12  2004-2014 Microchip Technology Inc.
PAGE 13
MCP102/103/121/131 4.0 APPLICATION INFORMATION 4.1 For many of today’s microcontroller applications, care must be taken to prevent low-power conditions that can cause many different system problems. The most common causes are brown-out conditions, where the system supply drops below the operating level momentarily.
PAGE 14
MCP102/103/121/131 Negative Going VDD Transients The minimum pulse width (time) required to cause a reset may be an important criterion in the implementation of a Power-on Reset (POR) circuit. This time is referred to as transient duration, defined as the amount of time needed for these supervisory devices to respond to a drop in VDD. The transient duration time is dependent on the magnitude of VTRIP – VDD. Generally speaking, the transient duration decreases with increases in VTRIP – VDD.
PAGE 15
MCP102/103/121/131 Usage in PIC® Microcontroller, ICSP™ Applications (MCP121 only) 4.4 Figure 4-5 shows the typical application circuit for using the MCP121 for voltage supervision function when the PIC microcontroller will be programmed via the ICSP feature. Additional information is available in TB087, “Using Voltage Supervisors with PIC® Microcontroller Systems which Implement In-Circuit Serial Programming™”, DS91087.
PAGE 16
MCP102/103/121/131 5.0 PACKAGING INFORMATION 5.
PAGE 17
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PAGE 18
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PAGE 19
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PAGE 20
MCP102/103/121/131 Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS20001906D-page 20  2004-2014 Microchip Technology Inc.
PAGE 21
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PAGE 22
MCP102/103/121/131 5.2 Product Tape and Reel Specifications FIGURE 5-1: EMBOSSED CARRIER DIMENSIONS (8, 12, 16 AND 24 MM TAPE ONLY) Top Cover Tape A0 W B0 K0 P TABLE 5-1: CARRIER TAPE/CAVITY DIMENSIONS Case Outline Carrier Dimensions Package Type Cavity Dimensions W mm P mm A0 mm B0 mm K0 mm Output Quantity Units Reel Diameter in mm TT SOT-23 3L 8 4 3.15 2.77 1.22 3000 180 LB SC70 3L 8 4 2.4 2.4 1.
PAGE 23
MCP102/103/121/131 APPENDIX A: REVISION HISTORY Revision D (February 2014) The following is the list of modifications: 1. 2. 3. Updated Table 3-1. Updated Figure 2-25. Updated SC70, SOT-23 and TO-92 package drawings and markings in Section 5.0 “Packaging Information”. Revision C (January 2013) • Added a note to each package outline drawing. Revision B (March 2005) The following is the list of modifications: 1. 2. 3. 4. 5. Added Section 4.
PAGE 24
MCP102/103/121/131 NOTES: DS20001906D-page 24  2004-2014 Microchip Technology Inc.
PAGE 25
MCP102/103/121/131 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.
PAGE 26
MCP102/103/121/131 NOTES: DS20001906D-page 26  2004-2014 Microchip Technology Inc.
PAGE 27
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.
PAGE 28
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