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MAX6743XKR

Description
1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
Categorysemiconductor    Analog mixed-signal IC   
File Size197KB,16 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric View All

MAX6743XKR Overview

1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5

MAX6743XKR Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals5
Minimum operating temperature-40 Cel
Maximum operating temperature85 Cel
Rated supply voltage1.8 V
Minimum supply/operating voltage1.2 V
Maximum supply/operating voltage5.5 V
Processing package descriptionEIAJ, SC-70, 5 PIN
each_compliYes
stateActive
Analog IC other typesPOWER SUPPLY SUPPORT CIRCUIT
Adjustable thresholdYES
jesd_30_codeR-PDSO-G5
jesd_609_codee0
moisture_sensitivity_level1
Number of channels1
Packaging MaterialsPLASTIC/EPOXY
ckage_codeTSSOP
ckage_equivalence_codeTSSOP5/6,.08
packaging shapeRECTANGULAR
Package SizeSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
eak_reflow_temperature__cel_245
wer_supplies__v_1.5/5
qualification_statusCOMMERCIAL
seated_height_max1.1 mm
sub_categoryPower Management Circuits
surface mountYES
CraftsmanshipBICMOS
Temperature levelINDUSTRIAL
terminal coatingTIN LEAD
Terminal formGULL WING
Terminal spacing0.6500 mm
Terminal locationDUAL
hreshold_voltage_nom__v_+2.63V
ime_peak_reflow_temperature_max__s_NOT SPECIFIED
length2 mm
width1.25 mm
dditional_featureRESET THRESHOLD VOLTAGE IS 2.625V; MANUAL RESET INPUT
19-2531; Rev 1; 4/03
Low-Power Dual-/Triple-Voltage SC70 µP
Supervisory Circuits
General Description
The MAX6736–MAX6745 are low-power dual-/triple-
voltage microprocessor (µP) supervisors. These
devices assert a reset if any monitored supply falls
below its factory-trimmed or adjustable threshold and
maintain reset for a minimum timeout period after all
supplies rise above their thresholds. The integrated
dual/triple supervisory circuits significantly reduce size
and power compared to separate ICs or discrete com-
ponents. The low supply current of 6µA makes these
devices ideal for portable equipment.
The MAX6736/MAX6737 are dual fixed-voltage µP
supervisors with a manual reset input. The MAX6738/
MAX6739 have one fixed and one adjustable reset
threshold and a manual reset input. The MAX6740/
MAX6743 are triple-voltage µP supervisors with two
fixed and one user-adjustable reset threshold inputs.
The MAX6741/MAX6744 are dual-voltage µP supervi-
sors with a power-OK (POK) output ideal for power-
supply sequencing. The MAX6742/MAX6745 monitor
the primary V
CC
supply and have an independent
power-fail comparator.
The MAX6736–MAX6745 monitor I/O supply voltages
(V
CC
1) from 1.8V to 5.0V and core supply voltages
(V
CC
2) from 0.9V to 3.3V with factory-trimmed reset
threshold voltage options (Table 1). An external
adjustable RSTIN input option allows monitoring volt-
ages down to 0.5V.
A variety of push-pull or open-drain reset outputs along
with manual reset input and power-fail input/output fea-
tures are available (see the
Selector Guide).
The
MAX6736–MAX6745 are offered in a space-saving 5-pin
SC70 package and operate over the -40°C to +85°C
temperature range.
Features
o
Dual-/Triple-Supply Reset Voltage Monitors
o
Precision Factory-Set Reset Thresholds for
Monitoring from 0.9V to 5.0V
o
Adjustable Reset Input Down to 0.488V
o
150ms and 1200ms (min) Reset Timeout Period
Options
o
V
CC
1 Power-OK Output for Power-Supply
Sequencing Applications (MAX6741/MAX6744)
o
Power-Fail Input/Power-Fail Output
(MAX6742/MAX6745)
o
6µA Supply Current
o
Tiny SC70 Package
MAX6736–MAX6745
Ordering Information
PART
MAX6736XK_
_D_-T
MAX6737XK_
_D_-T
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
5 SC70-5
5 SC70-5
Note:
The first “_ _” or “_” are placeholders for the threshold
voltage levels of the devices. Desired threshold levels are set
by the part number suffix found in Tables 1 and 2. The “_” after
the D is a placeholder for the reset timeout period suffix found
in Table 3. For example, the MAX6736XKLTD3-T is a dual-volt-
age supervisor V
TH
1 = 4.625V, V
TH
2 = 3.075V, and a 150ms
minimum reset timeout period. All devices are available in
tape-and-reel only. There is a 2500-piece minimum order
increment for standard versions (see Table 1). Sample stock is
typically held on standard versions only. Nonstandard versions
require a minimum order increment of 10,000 pieces. Contact
factory for availability.
Applications
Portable/Battery-
Powered Equipment
Multivoltage Systems
Notebook Computers
Controllers
PDAs
GPS Equipment
POS Equipment
Ordering Information continued at end of data sheet.
Selector Guide continued at end of data sheet.
Pin Configurations appear at end of data sheet.
Typical Application Circuits appear at end of data sheet.
Functional Diagram appears at end of data sheet.
Selector Guide
PART
MAX6736
MAX6737
MAX6738
VOLTAGE
MONITORS
2 fixed
2 fixed
1 fixed, 1 adj
OPEN-DRAIN
RESET
X
X
PUSH-PULL
RESET
X
MANUAL
RESET
X
X
X
POWER-FAIL
INPUT/
OUTPUT
POK
OUTPUT
RSTIN
INPUT
X
*Manual
reset detect on
RESET
output.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
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