General Description
The MAX6406–MAX6411 is a family of ultra-low power circuits ud for monitoring battery, power-supply, and regulated system voltages. Each detector contains a precision bandgap reference comparator and is trimmed to specified trip threshold voltages. The devices provide excellent circuit reliability and low cost by eliminating external components and adjustments when monitoring system voltages from 2.5V to 5.0V. A manual ret input is also included.
The MAX6406–MAX6411 asrt a signal whenever the V CC supply voltage falls below a pret threshold.The devices are differentiated by their output logic configurations and pret threshold voltages. The MAX6406/MAX6409 (push-pull) and the MAX6408/MAX6411 (open-drain) have an active-low output (OUT is logic low when V CC is below V TH ). The MAX6407/MAX6410 have an active-high push-pull output (OUT is logic high when V CC is below V TH ). All parts are guaranteed to be in the correct output logic state for V CC down to 1V. The detector is designed to ignore fast transients on V CC . The MAX6406/MAX6407/MAX6408 have voltage thresholds between 2.20V and 3.08V in approximately 100mV increments. The MAX6409/MAX6410/MAX6411 have voltage thresholds between 3.30V and 4.63V in approximately 100mV increments.
Ultra-low supply current of 500nA (MAX6406/MAX6407/MAX6408) makes the parts ideal for u in portable equipment. The devices are available in 4-bump chip-scale packages (UCSP ).
Applications
Portable/Battery-Powered Equipment Cell Phones PDAs MP3 Players Pagers
Features
o Tiny 4-Bump (2 X 2) Chip-Scale Package, (Package Pending Full Qualification—Expected Completion Date 6/30/01. See UCSP Reliability Section for More Details.)o 70% Smaller Than SC70 Packages o Ultra-Low 500nA Supply Current (MAX6406/MAX6407/MAX6408)
o Factory-Trimmed Ret Thresholds from 2.20V to 4.63V in Approximately 100mV Increments o ±2.5% Threshold Accuracy (-40°C to +85°C)o Manual Ret Input
o Guaranteed OUT Valid to V CC = 1.0V
o Three Ret Output Logic Options: Active-Low Push-Pull, Active-High Push-Pull, and Active-Low Open-Drain o Immune to Short V CC Transients o No External Components
MAX6406–MAX6411
Voltage Detectors in 4-Bump (2 X 2)
Chip-Scale Package
Maxim Integrated Products 1
19-2041; Rev 1; 8/01
For pricing, delivery, and ordering information,plea contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at
The MAX6406–MAX6411 are available in factory-t V CC
detector thresholds from 2.20V to 4.63V, in approximately 0.1V increments. Choo the desired threshold suffix from Table 1and inrt it in the blank space following “S”. There are 21standard versions with a required order increment of 2500pieces. Sample stock is generally held on the standard ver-sions only (Table1). Required order increment is 10,000 pieces for nonstandard versions (Table 2). Contact factory for avail-ability. All devices available in tape-and-reel only.
UCSP reliability is integrally linked to the ur’s asmbly
methods, circuit board material, and environment. Refer to the UCSP Reliability Notice in the UCSP Reliability ction of this data sheet for more information.
Pin Configuration appears at end of data sheet.UCSP is a trademark of Maxim Integrated Products, Inc.
Ordering Informationblocking
Selector Guide
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M A X 6406–M A X 6411
Voltage Detectors in 4-Bump (2 X 2) Chip-Scale Package
ABSOLUTE MAXIMUM RATINGS
Stress beyond tho listed under “Absolute Maximum Ratings” may cau permanent damage to the device. The are stress ratings only, and functional operation of the device at the or any other conditions beyond tho indicated in the operational ctions of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
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All voltages measured to GND unless otherwi noted.
<-0.3V to +6V OUT/OUT ...................................................-0.3V to (V CC + 0.3V)OUT (open-drain).....................................................-0.3V to +6V MR ..............................................................-0.3V to (V CC + 0.3V)Input/Output Current into 20mA
Continuous Power Dissipation (T A = +70°C)
4-Pin/Bump UCSP (derate 3.8mW/°C above +70°C)....303mW Operating Temperature Range ..........................-40°C to +85°C +150°C Stor
age Temperature Range ............................-65°C to +160°C Bump Reflow Temperature .............................................+235°C
ELECTRICAL CHARACTERISTICS
(V CC = 1.0V to 5.5V, T A = -40°C to +85°C, unless otherwi noted. Typical values are at V CC = 3V and T A = +25°C.) (Note1)
MAX6406–MAX6411
Voltage Detectors in 4-Bump (2 X 2)
Chip-Scale Package
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3
Note 2:Guaranteed by design.
ELECTRICAL CHARACTERISTICS (continued)
家乡新变化(V CC = 1.0V to 5.5V, T A = -40°C to +85°C, unless otherwi noted. Typical values are at V CC = 3V and T A = +25°C.) (Note1)
Typical Operating Characteristics
(T A = +25°C, unless otherwi noted.)
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-20
20
40
60
80
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SUPPLY CURRENT vs. TEMPERATURE
TEMPERATURE (°C)S U P P L Y C U R R E N T (µA )
050
100
200
150
250
-40
-20
20
40
60
80
PROPAGATION DELAY (V CC FALLING)
vs. TEMPERATURE
TEMPERATURE (°C)
P R O P A G A T I O N D E L A Y (µs )
M A X 6406–M A X 6411
Voltage Detectors in 4-Bump (2 X 2) Chip-Scale Package 4_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(T A = +25°C, unless otherwi noted.)
0402060
12010080140
-40
-20
20
40
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80
PROPAGATION DELAY (V CC RISING)
vs. TEMPERATURE
TEMPERATURE (°C)P R O P A G A T I O N D E L A Y (µs )
01
1000
100
10
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MAXIMUM TRANSIENT DURATION vs. THRESHOLD OVERDRIVE
500200
100
400300田园
THRESHOLD OVERDRIVE V TH - V CC (mV)
M A X I M U M T R A N S I E N T D U R A T I O N (µs )
MAX6406–MAX6411
Voltage Detectors in 4-Bump (2 X 2)
Chip-Scale Package
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M A X 6406–M A X 6411
Detailed Description
Manual Ret Input
Many µP-bad products require manual ret capabil-ity, allowing the operator, a test technician, or external logic circuit to initiate a ret. A logic low on MR asrts OUT/OUT . OUT/OUT remains asrted while MR is low.This input has an internal 50k Ωpullup resistor, so it can be left open if it is not ud. MR can be driven with TTL or CMOS logic levels, or with open-drain/collector out-puts. Connect a normally open momentary switch from MR to GND to create a manual ret function. If MR is driven from long cables or if the device is ud in a noisy environment, connect a 0.1µF capacitor from MR to ground to provide additional noi immunity.
Applications Information
Interfacing to Different Logic
Voltage Components
The MAX6408/MAX6411 have an active-low, open-drain output. This output structure will sink current when OUT is asrted. Connect a pullup resistor from OUT to any supply voltage up to 5.5V
(Figure 1). Select a resistor value large enough to allow a valid logic low (e Electrical Characteristics ), and small enough to register a logic high while supplying all input currents and leakage paths connected to the OUT line.
Voltage Detectors in 4-Bump (2 X 2) Chip-Scale Package 6
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