TC1271AMBVCTTR View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

TC1271AMBVCTTR

Voltage Supervisor with Manual Reset Input

Microchip Technology 

TC1270A/70AN/71A

ELECTRICAL CHARACTERISTICS (CONTINUED)

Electrical Characteristics: Unless otherwise noted, VDD = 5V for L/M versions, VDD = 3.3V for T/S versions,

VDD = 3V for R version, TA = -40°C to +125°C. Typical values are at TA = +25°C.

Parameter

Sym

Min Typ(1) Max Units

Test Conditions

Reset Threshold Tempco

—

±30

— ppm/°C

Reset Trip Point

Hysteresis (4)

VHYS

—

0.3

—

% Percentage of VTRIP Voltage

MR Input High Threshold VIH

2.3

—

—

V VDD > VTRIP(MAX), L/M only

0.7 VDD —

—

V VDD > VTRIP(MAX), R/S/T only

MR Input Low Threshold

VIL

—

—

0.8

V VDD > VTRIP(MAX), L/M only

—

— 0.25 VDD V VDD > VTRIP(MAX), R/S/T only

MR Pull-up Resistance

10

18.5

40

kΩ

Open-Drain High Voltage VODH

—

—

13.5

V Open-Drain Output pin only.

on Output

VDD = 3.0V, Time voltage > 5.5

applied ≤ 100s. Current into pin

limited to 2 mA +25°C operation

recommended (Note 6)

Reset

Output

Voltage

Low (2)

TC1270A/ VOL

TC1270AN

TC1271A

—

—

0.3

—

—

0.3

V R/S/T only,

ISINK = 1.2 mA, VDD = VTRIP(MIN)

V R/S/T only,

ISINK = 1.2 mA, VDD = VTRIP(MAX)

TC1270A/

—

—

0.4

V L/M only,

TC1270AN

ISINK = 3.2 mA, VDD = VTRIP(MIN)

TC1271A

—

—

0.3

V L/M only,

ISINK = 3.2 mA, VDD = VTRIP(MAX)

TC1270A/

—

—

0.3

V L/M only,

TC1270AN

ISINK = 50 µA, VDD > 1.0V

Reset

Output

TC1270A

VOH 0.8 VDD —

—

Voltage

High (2)

TC1270A

VDD - 1.5 —

—

V R/S/T only,

ISOURCE = 500 µA, VDD = VTRIP(MAX)

V L/M only,

ISOURCE = 800 µA, VDD = VTRIP(MAX)

TC1271A

0.8 VDD —

—

V ISOURCE = 500 µA, VDD ≤ VTRIP(MIN)

Input Leakage Current

IIL

—

—

±1

µA VPIN = VDD

Open-Drain RST Output IOLOD

—

—

1

µA Open-Drain configuration only.

Leakage

Capacitive Loading

CIO

Specification on Output

Pins

—

—

50

pF

Note 1: Data in the Typical (“Typ”) column is at 5V, +25°C, unless otherwise stated.

2: RST output for TC1270A, and TC1270AN, RST output for TC1271A.

3: TC127XA refers to either the TC1270A, TC1270AN or TC1271A device.

4: Hysteresis is within the VTRIP(MIN) to VTRIP(MAX) window.

5: Custom ordered Voltage Trip Point. Minimum order volume requirement.

6: This specification allows this device to be used in PIC® microcontroller applications that require the

In-Circuit Serial Programming™ (ICSP™) feature (see device-specific programming specifications for

voltage requirements). The total time that the RST pin can be above the maximum device operational

voltage (5.5V) is 100s. Current into the RST pin should be limited to 2 mA. It is recommended that the

device operational temperature be maintained between 0°C to +70°C (+25°C preferred). For additional

information, refer to Figure 2-41.

© 2007 Microchip Technology Inc.

DS22035B-page 3

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