TLC7701MDREP Datasheet, PDF (2/18 Pages) Texas Instruments – MICROPOWER SUPPLY VOLTAGE SUPERVISORS

TLC7701-EP, TLC7705-EP, TLC7733-EP
SGLS013E – MARCH 2003 – REVISED NOVEMBER 2011
www.ti.com
In addition to the power-on reset and undervoltage-supervisor function, the TLC77xx adds power-down control
support for static RAM. When CONTROL is tied to GND, RESET will act as active high. The voltage monitor
contains additional logic intended for control of static memories with battery backup during power failure. By
driving the chip select (CS) of the memory circuit with the RESET output of the TLC77xx and with the CONTROL
driven by the memory bank select signal (CSH1) of the microprocessor (see Figure 11), the memory circuit is
automatically disabled during a power loss. (In this application the TLC77xx power has to be supplied by the
battery.)
T_A
-40°C to 125°C
-55°C to 125°C
ORDERING INFORMATION
PACKAGE ⁽¹⁾
ORDERABLE PART
NUMBER
TLC7701QPWREP
TSSOP - PW Tape and reel
TLC7705QPWREP
TLC7733QPWREP
TSSOP - PW Tape and reel
TLC7701MPWREP
TLC7733MPWREP
SOIC - D
Tape and reel
TLC7701MDREP
TOP-SIDE
MARKING
7701QE
7705QE
7733QE
7701ME
7733ME
7701ME
VID NUMBER
V62/04604 - 01XE
V62/04604 - 02XE
V62/04604 - 03XE
V62/04604 - 04XE
V62/04604 - 06XE
V62/04604 - 04YE
(1) The PW package is only available left-end taped and reeled (indicated by the R suffix on the device type; e.g., TLC7701QPWREP).
Table 1. FUNCTION TABLE
CONTROL
L
L
L
L
H
H
H
H
RESIN
L
L
H
H
L
L
H
H
V_I(SENSE) > V_IT+
False
True
False
True
False
True
False
True
(1) RESET and RESET states shown are valid for t > t_d.
RESET
H
H
H
L ⁽¹⁾
H
H
H
H
RESET
L
L
L
H ⁽¹⁾
L
L
L
H ⁽¹⁾
7
SENSE
2
RESIN
COMP
≥1
S
S<V_IT
V_IT
Z1
1
3
Z2
CT
× CX
1
CONTROL
1
≥1
Z3
2
≥1
3
5
RESET
6
RESET
(1) This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Figure 1. Logic Symbol
2
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