MCP111T-195TT MICROCHIP [Microchip Technology], MCP111T-195TT Datasheet

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MCP111T-195TT

Manufacturer Part Number
MCP111T-195TT
Description
Micropower Voltage Detector
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
Features
• Ultra-low supply current: 1.75 µA (max.)
• Precision monitoring options of:
• Resets microcontroller in a power-loss event
• Active-low V
• Available in SOT23-3, TO-92 and SC70 packages
• Temperature Range:
Applications
• Critical µC and µP Power-monitoring Applications
• Computers
• Intelligent Instruments
• Portable Battery-Powered Equipment
Block Diagram
 2004 Microchip Technology Inc.
- 1.90V, 2.32V, 2.63V, 2.90V, 2.93V, 3.08V,
- MCP111 active-low, open-drain
- MCP112 active-low, push-pull
- Extended: –40°C to +125°C
- Industrial: –40°C to +85°C (MCP1XX-195 only)
4.38V and 4.63V
(except MCP1XX-195)
Band Gap
Reference
Comparator
+
OUT
pin:
V
V
DD
SS
Micropower Voltage Detector
Output
Driver
V
OUT
Description
The
designed to keep a microcontroller in reset until the
system voltage has reached, and stabilized, at the
appropriate level for reliable system operation. These
devices also operate as protection from brown-out
conditions when the system supply voltage drops
below a safe operating level. The MCP111 and
MCP112 are available in eight different trip voltages.
The MCP111 has an open-drain output with an active-
low pin (V
voltage on the V
The MCP112 has a push-pull output and will assert an
active-low signal (V
V
During operation, the output (V
high as long as V
threshold voltage. When V
trip point, V
Package Types
DD
MCP111/112
pin is below the trip-point voltage.
MCP111/112
OUT
OUT
V
V
OUT
). This device will assert V
SS
is driven low.
DD
SOT23-3/SC-70
1
2
pin is below the trip-point voltage.
DD
OUT
V
are
OUT
TO-92
is greater than the specified
pin) when the voltage on the
V
voltage-detecting
DD
DD
V
OUT
falls below the voltage
SS
) remains at a logic-
3
DS21889B-page 1
V
OUT
DD
when the
devices

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MCP111T-195TT Summary of contents

Page 1

Micropower Voltage Detector Features • Ultra-low supply current: 1.75 µA (max.) • Precision monitoring options of: - 1.90V, 2.32V, 2.63V, 2.90V, 2.93V, 3.08V, 4.38V and 4.63V • Resets microcontroller in a power-loss event • Active-low V pin: OUT - MCP111 ...

Page 2

MCP111/112 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings† ...

Page 3

DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise indicated, all limits are specified for –40°C to +125°C. A Parameters V Low-level Output Voltage OUT V High-level Output Voltage OUT Open-Drain Output Leakage Current (MCP111 only) Note 1: Trip ...

Page 4

MCP111/112 TEMPERATURE CHARACTERISTICS Electrical Specifications: Unless otherwise noted, all limits are specified for V (only MCP111 –40°C to +125°C. A Parameters Temperature Ranges Specified Temperature Range Specified Temperature Range Maximum Junction Temperature Storage Temperature Range Package Thermal Resistances ...

Page 5

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 ...

Page 6

MCP111/112 Note: Unless otherwise indicated, all limits are specified for V see Figure 4-1 –40°C to +125°C. A 1.950 1.945 increasing TRIP 1.940 V , Hysteresis HYS 1.935 1.930 MCP111-195 1.925 max temp is 1.920 ...

Page 7

Note: Unless otherwise indicated, all limits are specified for V see Figure 4-1 –40°C to +125°C. A 0.120 MCP111-195 0.100 I OL 0.080 I 0.060 OL 0.040 I ...

Page 8

MCP111/112 Note: Unless otherwise indicated, all limits are specified for V see Figure 4-1 –40°C to +125°C. A 350 V decreasing from: DD 300 5V - 1.7V 250 V decreasing from 0.25V to V 200 ...

Page 9

Note: Unless otherwise indicated, all limits are specified for V see Figure 4-1 –40°C to +125° increasing from 2. increasing from 5. ...

Page 10

MCP111/112 3.0 PIN DESCRIPTION The descriptions of the pins are listed in Table 3-1. TABLE 3-1: PIN FUNCTION TABLE Pin No. Symbol SOT23-3 T0-92 SC- Output State OUT ...

Page 11

APPLICATION INFORMATION 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 ...

Page 12

MCP111/112 4.2 Negative Going V Transients DD The minimum pulse width (time) required to cause a reset may be an important criteria in the implementa- tion of a POR circuit. This time is referred to as transient duration and is ...

Page 13

... MCP112T-315E/LB MCP111T-450E/LB ELN MCP112T-450E/LB MCP111T-475E/LB EMN MCP112T-475E/LB Example: Part Number SOT-23 Part Number MCP111T-195I/TT MPNN MCP112T-195I/TT MCP111T-240ETT MQNN MCP112T-240ETT MCP111T-270E/TT MGNN MCP112T-270E/TT MCP111T-290E/TT NHNN MCP112T-290E/TT MCP111T-300E/TT MJNN MCP112T-300E/TT MCP111T-315E/TT MKNN MCP112T-315E/TT MCP111T-450E/TT MLNN MCP112T-450E/TT MCP111T-475E/TT MMNN MCP112T-475E/TT SC-70 ERN ESN EAN EBN ...

Page 14

MCP111/112 3-Lead Plastic Small Outline Transistor (TT) (SOT-23 Dimension Limits Number of Pins Pitch Outside lead pitch (basic) Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width Overall Length Foot Length Foot ...

Page 15

Plastic Small Outline Transistor (LB) (SC-70 Number of Pins Pitch Outside lead pitch (basic) Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width Overall Length Foot Length Lead Thickness Lead Width ...

Page 16

MCP111/112 3-Lead Plastic Transistor Outline (TO) (TO-92 Dimension Limits Number of Pins Pitch Bottom to Package Flat Overall Width Overall Length Molded Package Radius Tip to Seating Plane Lead Thickness Lead Width ...

Page 17

Product Tape and Reel Specifications FIGURE 5-1: EMBOSSED CARRIER DIMENSIONS (8, 12, 16 AND 24 MM TAPE ONLY) Top Cover Tape K 0 TABLE 1: CARRIER TAPE/CAVITY DIMENSIONS Case Package Outline Type TT SOT-23B 3L LB SC-70 3L FIGURE ...

Page 18

MCP111/112 FIGURE 5-3: TO-92 DEVICES Device Marking 3 LEAD TO-92 Device Marking 2 LEAD TO-92 Standard Reel Component Orientation DS21889B-page 18 P, Pitch W, Width of Carrier Tape W, Width of Carrier Tape Reverse ...

Page 19

... XXX Device Monitoring Tape/Reel Option Options Device: MCP111: MicroPower Voltage Detector, open-drain MCP111T: MicroPower Voltage Detector, open-drain (Tape and Reel) MCP112: MicroPower Voltage Detector, push-pull MCP112T: MicroPower Voltage Detector, push-pull (Tape and Reel) Monitoring Options: 195 = 1.90V 240 = 2.32V 270 = 2.63V 290 = 2 ...

Page 20

MCP111/112 NOTES: DS21889B-page 20  2004 Microchip Technology Inc. ...

Page 21

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 ...

Page 22

W ORLDWIDE AMERICAS ASIA/PACIFIC Corporate Office Australia - Sydney 2355 West Chandler Blvd. Tel: 61-2-9868-6733 Chandler, AZ 85224-6199 Fax: 61-2-9868-6755 Tel: 480-792-7200 China - Beijing Fax: 480-792-7277 Tel: 86-10-8528-2100 Technical Support: Fax: 86-10-8528-2104 480-792-7627 China - Chengdu Web Address: Tel: ...

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