Datasheet

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General Description

The MAX6754–MAX6764 low-power window detectors

monitor undervoltage/overvoltage conditions on system

power supplies. These devices assert when the moni-

tored voltage is under the undervoltage and/or over the

overvoltage thresholds.

The MAX6754–MAX6759/MAX6763/MAX6764 monitor a

single voltage. The MAX6760/MAX6761/MAX6762

monitor dual-voltage systems. The MAX6754/MAX6755/

MAX6756 provide a single undervoltage/overvoltage

output and the MAX6757–MAX6764 provide indepen-

dent undervoltage and overvoltage outputs. The out-

puts are available in push-pull or open-drain

configurations.

The MAX6754–MAX6762 offer factory-fixed voltage

thresholds for monitoring system voltages from 0.9V to

5V with a selectable ±5%, ±10%, or ±15% window volt-

age. The MAX6763/MAX6764 allow for externally

adjustable thresholds. The MAX6754–MAX6762 are

available in two delay timing options (20µs, typ or

100ms, min). The MAX6760/MAX6761/MAX6762 also

include a latched overvoltage output function and the

MAX6754–MAX6762 include a manual reset input.

The family of products is available in small SOT23 and

TDFN packages and is specified over the extended

temperature range of -40°C to +125°C.

Applications

Features

o Single- or Dual-Supply Voltage Monitors

o Factory-Trimmed Window Threshold Options for

5V, 3.3V, 3V, 2.5V, 1.8V, 1.5V, 1.2V, and 0.9V

Supplies

o Externally Adjustable Window Monitoring Options

for Supplies Down to 0.5V

o Selectable Window Threshold Options (±5%,

±10%, ±15%)

o Single (Combined UV/OV) or Dual (Separate UV

and OV) Outputs

o 20µs (typ) or 100ms (min) Timeout Period Options

(MAX6754–MAX6762)

o Manual Reset Input (MAX6754–MAX6762)

o Latched Overvoltage Output Function

(MAX6760/MAX6761/MAX6762)

o Immune to Short Voltage Transients

o Low 10µA Supply Current

o Low-Voltage Operation (Outputs Valid for V

Down to 1V)

o -40°C to +125°C Operating Temperature Range

o Small SOT23 and TDFN Packages

MAX6754–MAX6764

Low-Power, Single/Dual-Voltage Window

Detectors

________________________________________________________________

Maxim Integrated Products

Ordering Information

MAX6757

NMI

RESETMR

GND

SET

µP

Typical Application Circuit

19-3075; Rev 4; 1/11

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

PART* TEMP RANGE PIN-PACKAGE

MAX6754UK_D_-T -40°C to +125°C 5 SOT23-5

MAX6755UK_D_-T -40°C to +125°C 5 SOT23-5

MAX6756UK_D_-T -40°C to +125°C 5 SOT23-5

MAX6757UT_D_-T -40°C to +125°C 6 SOT23-6

MAX6758UT_D_-T -40°C to +125°C 6 SOT23-6

Ordering Information continued at end of data sheet.

Pin Configurations appear at end of data sheet.

Telecommunications

Networking

Computers/Servers

Data Storage

Power Metering

DC-DC Converter

Modules

Automotive

Insert the threshold level suffixes for V

and V

CC2

(Tables 1

and 2) after UK, UT, or TA. For the MAX6754–MAX6759, insert

only the V

threshold suffix after the UK or UT. Insert the reset

timeout delay (Table 3) after D to complete the part number. For

example, the MAX6760TALTD3-T provides a V

threshold of

5V, a V

CC2

threshold of 3.3V, and a 100ms minimum reset time-

out period. Sample stock is generally held on standard versions

only (see the Standard Versions table). Standard versions have

an order increment requirement of 2500 pieces. Nonstandard

versions have an order increment requirement of 10,000 pieces.

Contact factory for availability.

Devices are available in both leaded and lead-free packaging.

Specify lead-free by replacing “-T” with “+T” when ordering.

Summary of content (20 pages)

PAGE 1
9-3075; Rev 4; 1/11 Low-Power, Single/Dual-Voltage Window Detectors The MAX6754–MAX6764 low-power window detectors monitor undervoltage/overvoltage conditions on system power supplies. These devices assert when the monitored voltage is under the undervoltage and/or over the overvoltage thresholds. The MAX6754–MAX6759/MAX6763/MAX6764 monitor a single voltage. The MAX6760/MAX6761/MAX6762 monitor dual-voltage systems.
PAGE 2
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window Detectors ABSOLUTE MAXIMUM RATINGS Operating Temperature Range .........................-40°C to +125°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C Soldering Temperature (reflow) Lead(Pb)-Free Package................................................
PAGE 3
Low-Power, Single/Dual-Voltage Window Detectors (VCC = 1.0V to 6.0V, VCC2 = 0 to 6.0V (MAX6760–MAX6762), TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS L, 5V T, 3.3V VCC Undervoltage Threshold UVTH TA = -40°C to +125°C, falling VCC R, 3.0V Z, 2.5V MAX 4.125 4.250 4.500 SET = VCC 4.250 4.375 SET = GND 4.500 4.625 4.750 VSET = VSB 2.640 2.723 2.805 2.970 SET = VCC 2.805 2.888 SET = GND 2.970 3.053 3.
PAGE 4
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window Detectors ELECTRICAL CHARACTERISTICS (continued) (VCC = 1.0V to 6.0V, VCC2 = 0 to 6.0V (MAX6760–MAX6762), TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX VSET = VSB 2.640 2.723 2.805 SET = VCC 2.805 2.888 2.970 SET = GND 2.970 3.053 3.135 VSET = VSB 2.400 2.475 2.550 SET = VCC 2.550 2.625 2.700 SET = GND 2.700 2.775 2.850 VSET = VSB 2.000 2.
PAGE 5
Low-Power, Single/Dual-Voltage Window Detectors (VCC = 1.0V to 6.0V, VCC2 = 0 to 6.0V (MAX6760–MAX6762), TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 6
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window Detectors ELECTRICAL CHARACTERISTICS (continued) (VCC = 1.0V to 6.0V, VCC2 = 0 to 6.0V (MAX6760–MAX6762), TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 7
Low-Power, Single/Dual-Voltage Window Detectors (VCC = 1.0V to 6.0V, VCC2 = 0 to 6.0V (MAX6760–MAX6762), TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER OV Output Low (Open-Drain or Push-Pull) VOL OV Output High (Push-Pull) VOH RESET, UV, OV Output OpenDrain Leakage Current Note 1: Note 2: Note 3: Note 4: Note 5: SYMBOL ILKG CONDITIONS MIN TYP MAX Any VCC ≥ 1.98V, ISINK = 1.4mA, output asserted 0.3 Any VCC ≥ 2.75V, ISINK = 2.
PAGE 8
Typical Operating Characteristics (VCC = 5V, VCC2 = 3.3V, TA = +25°C, unless otherwise noted.) UNDERVOLTAGE THRESHOLD vs. TEMPERATURE OVERVOLTAGE THRESHOLD RISING 1.00 0.99 OVERVOLTAGE THRESHOLD FALLING 0.98 NORMALIZED TO RISING THRESHOLD AT TA = +25°C 0.97 UNDERVOLTAGE THRESHOLD RISING 1.00 UNDERVOLTAGE THRESHOLD FALLING 0.99 0.
PAGE 9
Low-Power, Single/Dual-Voltage Window Detectors PIN MAX6754/ MAX6757/ MAX6760/ MAX6763/ MAX6755/ MAX6758/ MAX6761/ MAX6764 MAX6756 MAX6759 MAX6762 1 1 1 — — — 1 2 2 2 2 3 4 5 3 — 6 8 — 4 – — — — NAME VCC MR RESET/ RESET Reset Output. The Reset Output asserts when VCC is below the selected UVTH threshold or above the selected OVTH threshold. Reset output deasserts after the specified timeout period after VCC rises above the UVTH threshold or drops below the OVTH threshold.
PAGE 10
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window Detectors Pin Description (continued) PIN MAX6754/ MAX6757/ MAX6760/ MAX6763/ MAX6755/ MAX6758/ MAX6761/ MAX6764 MAX6756 MAX6759 MAX6762 7 — NAME FUNCTION Overvoltage Output Latch Control Input. Drive OVLATCH high to latch the overvoltage output for any VCC or VCC2 overvoltage condition. Drive OVLATCH low to clear the latch after overvoltage conditions have been OVLATCH removed. The latch is transparent when OVLATCH is connected to GND.
PAGE 11
Low-Power, Single/Dual-Voltage Window Detectors VCC ADJUST MONITOR VOLTAGE TIMEOUT PERIOD OPTION UVTH (UV)/ UV UV MONITOR SET MR VCC OV OVTH OV MONITOR UV THRESHOLD -5%, -10%, -15% GND OV THRESHOLD +5%, +10%, +15% MAX6757/MAX6758/MAX6759 INTERNAL REFERENCE ( ) MAX6758 ONLY. Figure 2.
PAGE 12
Low-Power, Single/Dual-Voltage Window Detectors MAX6754–MAX6764 Functional Diagrams (continued) VCC MR ADJUST MONITOR VOLTAGE UVTH UV MONITOR TIMEOUT PERIOD OPTION OV CIRCUIT OVTH (UV)/ UV OV OV MONITOR SET UV THRESHOLD -5%, -10%, -15% OVLATCH OV THRESHOLD +5%, +10%, +15% INTERNAL REFERENCE GND UVTH VCC2 UV MONITOR ADJUST MONITOR VOLTAGE MAX6760/MAX6761/MAX6762 OVTH OV MONITOR ( ) MAX6761 ONLY. Figure 3.
PAGE 13
Low-Power, Single/Dual-Voltage Window Detectors UVIN MAX6763/MAX6764 UV UVTH VCC The MAX6754–MAX6762 offer factory-fixed voltage thresholds for monitoring system voltages from 0.9V to 5V. The MAX6754–MAX6762 include a SET function to select the window voltage to ±5%, ±10%, or ±15%. The MAX6763/MAX6764 allow for externally adjustable upper and lower voltage thresholds to be set externally (down to 0.5V).
PAGE 14
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window Detectors Overvoltage Latch Control Input (OVLATCH) V+ The MAX6760/MAX6761/MAX6762 provide an overvoltage latch control input (OVLATCH). Drive OVLATCH high to latch the overvoltage output for any V CC or VCC2 overvoltage condition. Drive OVLATCH low to clear the latch after overvoltage conditions have been removed. The latch is transparent when OVLATCH is connected to GND. OVLATCH is a high impedance input. Use external pullup or pulldown.
PAGE 15
Low-Power, Single/Dual-Voltage Window Detectors Microprocessor Monitoring Figure 8 shows a microprocessor monitoring circuit. An overvoltage condition on either the core or I/O supply CORE DC-DC CONVERTER FUSE CORE I/O DC-DC CONVERTER I/O μP UNREGULATED POWER SOURCE MAX6760 VCC2 MR PUSH BUTTON SCR 100kΩ 100kΩ VCC OVLATCH GND UV RESET SET OV NMI 100kΩ *C1 1μF *OPTIONAL. Figure 8.
PAGE 16
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window Detectors Table 1. Window Threshold Voltage Suffix Guide Single Fixed VCC (MAX6754—MAX6759) PART NO. SUFFIX VCC NOMINAL SYSTEM VOLTAGE (V) L 5.0 T 3.3 R 3.0 Z 2.5 W 1.8 Table 3. Timeout Period Suffix Guide TIMEOUT PERIOD SUFFIX ACTIVE TIMEOUT PERIOD MIN (ms) TYP (MS) MAX (ms) D0 — 0.02 — D3 100 185 320 Ordering Information (continued) PART* Table 2.
PAGE 17
Low-Power, Single/Dual-Voltage Window Detectors PART TOP MARK PART TOP MARK AEOC MAX6758UTLD0 ABSY MAX6754UKLD3 AEJN MAX6758UTLD3 ABRG MAX6754UKTD0 AEOD MAX6758UTTD0 ABSZ MAX6754UKTD3 AEJO MAX6758UTTD3 ABRH MAX6754UKZD0 AEJQ MAX6758UTZD0 ABRJ MAX6754UKZD3 AEOF MAX6758UTZD3 ABTB MAX6754UKWD0 AEOG MAX6758UTWD0 ABTC MAX6754UKWD3 AEJR MAX6758UTWD3 ABRK MAX6755UKLD0 AEOH MAX6759UTLD0 ABRL MAX6755UKLD3 AEJS MAX6759UTLD3 ABTD MAX6755UKTD0 AEOI MAX6759UTTD0 ABRM MAX675
PAGE 18
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window Detectors Standard Versions Table (continued) PART TOP MARK PART TOP MARK AJT MAX6761TALTD3 AJD MAX6762TALTD3 MAX6761TALAD3 AHN MAX6762TALAD3 AHR MAX6761TATZD3 AJG MAX6762TATZD3 AJW AHO MAX6762TATWD3 AJY MAX6761TATAD3 AJI MAX6762TATAD3 AKA MAX6761TARAD3 AJK MAX6762TARAD3 AKB MAX6761TAZWD3 AJM MAX6762TAZWD3 AHT MAX6761TAZAD3 AJO MAX6762TAZAD3 AKE MAX6761TAWED3 AJQ MAX6762TAWED3 AKF AHQ MAX6762TAWAD3 AKH MAX6761TAT
PAGE 19
Low-Power, Single/Dual-Voltage Window Detectors TOP VIEW VCC 1 5 SET VCC 1 8 MR GND 2 GND 2 MAX6754 MAX6755 MAX6756 MR 3 7 OVLATCH MAX6760 MAX6761 MAX6762 VCC2 3 6 UV (UV) SET 4 4 5 OV RESET (RESET) TDFN ( ) MAX6761 ONLY. SOT23 ( ) MAX6755 ONLY. VCC 1 GND 2 MR MAX6757 MAX6758 MAX6759 3 6 SET VCC 1 5 OV GND 2 4 UV (UV) UVIN 3 SOT23 MAX6763 MAX6764 6 OVIN 5 OV 4 UV SOT23 ( ) MAX6758 ONLY.
PAGE 20
MAX6754–MAX6764 Low-Power, Single/Dual-Voltage Window Detectors Revision History REVISION NUMBER REVISION DATE DESCRIPTION PAGES CHANGED 4 1/11 Added /V to the MAX6759 Ordering Information and added soldering temperature in the Absolute Maximum Rating section 2, 16 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.