Datasheet

ManualsBrandsMICROCHIP TECHNOLOGY ManualsPMICsPMIC - system monitor Reset/power-on reset SOT 23-3

 2004-2013 Microchip Technology Inc. DS21906C-page 1

MCP102/103/121/131

Features

• Ultra low supply current: 1.75 µA

(steady-state max.)

• 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 internal

pull-up resistor

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

• Reset Delay Timer (120 ms delay, typ.)

• Available in SOT23-3, TO-92 and SC-70

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 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. Table 1

shows the available features for these devices.

Package Types

Block Diagram

TABLE 1: DEVICE FEATURES

SOT23-3/SC-70

RST

MCP102/121/131

RST

TO-92

SOT23-3/SC-70

MCP103

RST

Comparator

–

Output

Driver

RST

Band Gap

Reference

Reset

Delay

Circuit

(1)

Note 1: MCP131 Only

Device

Output

Reset

Delay (typ)

Package Pinout

(Pin # 1, 2, 3)

Comment

Type Pull-up Resistor

MCP102 Push-pull No 120 ms RST

, V

MCP103 Push-pull No 120 ms V

SS, RST, V

MCP121 Open-drain External 120 ms RST

, V

MCP131 Open-drain Internal (~95 k)120ms RST

, V

MCP111 Open-drain External No V

OUT

, V

See MCP111/112 Data Sheet

(DS21889)

MCP112 Push-Pull No No V

OUT

, V

See MCP111/112 Data Sheet

(DS21889)

Micropower Voltage Supervisors

Summary of content (28 pages)

PAGE 1
MCP102/103/121/131 Micropower Voltage Supervisors Package Types SOT23-3/SC-70 RST 1 VDD 2 TO-92 3 VSS RST VDD VSS SOT23-3/SC-70 VSS 1 MCP103 • Ultra low supply current: 1.75 µA (steady-state max.) • Precision monitoring options of: - 1.90V, 2.32V, 2.63V, 2.93V, 3.08V, 4.38V and 4.
PAGE 2
MCP102/103/121/131 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 . . . . . . . . . . . . . . . . . . . . . . .
PAGE 3
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 4
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.
PAGE 5
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 6
MCP102/103/121/131 16 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 MCP102-195 MCP102-195 14 +25°C +85°C 0°C 5.0 6.0 10 8 Device in Reset tRPU inactive 6 2 0 2.0 3.0 4.0 5.0 6.0 1.0 2.0 3.0 VDD (V) 4.0 VDD (V) FIGURE 2-7: IDD vs. VDD (Reset Power-up Timer Inactive) (MCP102-195). FIGURE 2-10: IDD vs.VDD (Reset Power-up Timer Active) (MCP102-195). 80 35 0°C, +25°C -40°C MCP131-315 30 MCP131-315 70 60 20 IDD (uA) 25 IDD (uA) 0°C +25°C +70°C +85°C +125°C 4 -40°C 1.
PAGE 7
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. 0.050 0.045 0.040 0.035 0.030 0.025 0.020 0.015 0.010 0.005 MCP102-195 0.000 90 140 VTRIP, increasing VDD VTRIP, decreasing VDD -60 -10 40 MCP102-195 VDD = 1.7V 0.080 VOL (V) VHYS, Hysteresis 0.100 Hyst (V) VTRIP (V) 0.120 1.945 1.940 1.935 1.930 1.925 1.920 1.915 1.910 1.905 1.900 1.895 +70°C +125°C 0.060 +85°C +25°C 0.040 0.
PAGE 8
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. 0.120 2.110 MCP102-195 VDD = 1.7 V VOL (V) 0.100 IOL = 0.50 mA 0.040 IOL = 0.25 mA 0.000 0 40 80 120 +125°C 2.010 +85°C +70°C 1.950 0.00 +25°C 0.25 0.50 0.75 1.00 IOL (mA) Temperature (°C) FIGURE 2-22: VOH vs. IOL (MCP102-195 @ VDD = 2.1V). FIGURE 2-19: VOL vs. Temperature (MCP102-195 @ VDD = 1.7V). 0.070 IOL = 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. 300 VDD decreasing from: 5V - 1.7V VDD decreasing from: VTRIP(max) + 0.25V to VTRIP(min) - 0.25V 200 150 50 110 -40 -15 FIGURE 2-23: (MCP102-195). 10 35 60 Temperature (°C) 85 VDD increasing from: 0V - 5.5V -40 110 FIGURE 2-26: (MCP102-195). 160 150 100 tRPU (µs) VDD decreasing from: 5V - 2.
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. VDD increasing from: 0V - 2.1V 0.4 MCP102-195 VDD increasing from: 0V - 2.8V 0.35 tRT (µs) 0.3 0.25 0.2 0.15 0.1 VDD increasing from: 0V - 4.0V VDD increasing from: 0V - 5.0V VDD increasing from: 0V - 5.5V 0.05 1400 Transient Duration (µS) 0.
PAGE 11
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 1 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 2 VSS Ground reference  2004-2013 Microchip Technology Inc.
PAGE 12
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 13
MCP102/103/121/131 Negative Going VDD Transients The minimum pulse width (time) required to cause a reset may be an important criteria 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 dependant on the magnitude of VTRIP – VDD. Generally speaking, the transient duration decreases with increases in VTRIP – VDD.
PAGE 14
MCP102/103/121/131 Using in PIC® Microcontroller, ICSP™ Applications (MCP121 only) 4.4 Figure 4-5 shows the typical application circuit for using the MCP121 for voltage superviory 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 15
MCP102/103/121/131 5.0 PACKAGING INFORMATION 5.1 Package Marking Information 3-Lead TO-92 Example: MCP102 195I e3 TO^^ 547256 XXXXXX XXXXXX XXXXXX YWWNNN Example: MCP1xx = 3-Pin SOT-23 Part Number MCP102 MCP103 MCP121 MCP131 XXNN Legend: XX...
PAGE 16
MCP102/103/121/131 Package Marking Information (Continued) Example: MCP1xx = 3-Pin SC-70 Part Number MCP102 MCP103 MCP121 MCP131 XXN YWW Top Side Bottom Side MCP1xxT-195I/LB BGN FGN DGN CGN MCP1xxT-240E/LB BHN FHN DHN CHN MCP1xxT-270E/LB BJN FJN DJN CJN MCP1xxT-300E/LB BKN FKN DKN CKN MCP1xxT-315E/LB BLN FLN DLN CLN MCP1xxT-450E/LB BMN FMN DMN CMN MCP1xxT-475E/LB BPN FPN DPN CPN OR Example: MCP1xx = Part Number MCP102 MCP103 MCP121 MCP131 XXNN Top Side DS21906C
PAGE 17
MCP102/103/121/131 3-Lead Plastic Small Outline Transistor (TT) (SOT-23) Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.
PAGE 18
MCP102/103/121/131 3-Lead Plastic Small Outline Transistor (LB) (SC-70) Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.
PAGE 19
MCP102/103/121/131 3-Lead Plastic Transistor Outline (TO) (TO-92) Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging E1 D n 1 L 1 2 3  B p c A R Units Dimension Limits n p  MIN INCHES* NOM MAX 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 MIN Number of Pins 3 Pitch .050 Bottom to Package Flat A .130 .143 .155 Overall Width E1 .175 .186 .
PAGE 20
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 1: CARRIER TAPE/CAVITY DIMENSIONS Case Outline Carrier Dimensions Package Type W mm Cavity Dimensions 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 SC-70 3L 8 4 2.4 2.4 1.
PAGE 21
MCP102/103/121/131 FIGURE 5-3: TO-92 DEVICE TAPE AND REEL SPECIFICATIONS User Direction of Feed P Device Marking MARK MARK MARK FACE FACE FACE Seal Tape Back Tape Note: W Bent leads are for Tape and Reel only.  2004-2013 Microchip Technology Inc.
PAGE 22
MCP102/103/121/131 NOTES: DS21906C-page 22  2004-2013 Microchip Technology Inc.
PAGE 23
MCP102/103/121/131 APPENDIX A: REVISION HISTORY 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 4.4 “Using in PIC® Microcontroller, ICSP™ Applications (MCP121 only)” on using the MCP121 in PIC microcontroller ICSP applications. Added VODH specifications in Section 1.0 “Electrical Characteristics” (for ICSP applications). Added Figure 2-33.
PAGE 24
MCP102/103/121/131 NOTES: DS21906C-page 24 l  2004-2013 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: DS21906C-page 26  2004-2013 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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