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参数资料
型号： TC1270AMAVRCTR
元件分类： 电源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO4
封装： LEAD FREE, PLASTIC, SOT-143, 4 PIN
文件页数： 34/48页
文件大小： 541K
代理商： TC1270AMAVRCTR
TC1270A/70AN/71A
DS22035D-page 4
2007-2011 Microchip Technology Inc.
Reset Threshold Tempco
—
±30
—
ppm/°C
Reset Trip Point
Hysteresis (1)
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
VVDD > VTRIP(MAX), R/S/T only
MR Pull-up Resistance
10
18.5
40
k
Open-Drain High Voltage
on Output
VODH
—
13.5
V
Open-Drain Output pin only.
VDD = 3.0V, Time voltage > 5.5
applied
100s. Current into pin
limited to 2 mA +25°C operation
recommended (6)
Reset
Output
Voltage
Low (2)
TC1270A/
TC1270AN
VOL
—
0.3
V
R/S/T only,
ISINK = 1.2 mA, VDD = VTRIP(MIN)
TC1271A
—
0.3
V
R/S/T only,
ISINK = 1.2 mA, VDD = VTRIP(MAX)
TC1270A/
TC1270AN
—
0.4
V
L/M only,
ISINK = 3.2 mA, VDD = VTRIP(MIN)
TC1271A
—
0.3
V
L/M only,
ISINK = 3.2 mA, VDD = VTRIP(MAX)
TC1270A/
TC1270AN
—
0.3
V
L/M only,
ISINK = 50 A, VDD > 1.0V
Reset
Output
Voltage
High (2)
TC1270A
VOH
0.8 VDD
—
V
R/S/T only,
ISOURCE = 500 A, VDD = VTRIP(MAX)
TC1270A
VDD - 1.5
—
V
L/M only,
ISOURCE = 800 A, VDD = VTRIP(MAX)
TC1271A
0.8 V
DD
——
V
ISOURCE = 500 A, VDD VTRIP(MIN)
Input Leakage Current
IIL
——
±1
A
VPIN = VDD
Open-Drain RST Output
Leakage
IOLOD
—
1
A
Open-Drain configuration only.
Capacitive Loading
Specification on Output
Pins
CIO
—
50
pF
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
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 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.
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