MAX6776LTA+T-MAX6776XKA+T-MAX6777XK+-MAX6780LTA+T Fast Delivery |IC PHOENIX CO.,LIMITED

MAX6776LTA+T ,Low-Power, 1%-Accurate Battery Monitor in µDFN and SC70 PackagesELECTRICAL CHARACTERISTICS(V = 1.6V to 5.5V, T = -40°C to +85°C, unless otherwise specified. Typica ..
MAX6776XKA+T ,Low-Power, 1%-Accurate Battery Monitor in µDFN and SC70 PackagesApplicationsBattery-Powered Systems (Single-Cell Li+ orMulticell NiMH, NiCd, Alkaline)Cell Phones/C ..
MAX6777XK+ ,Low-Power, 1%-Accurate Battery Monitor in µDFN and SC70 PackagesELECTRICAL CHARACTERISTICS (continued)(V = 1.6V to 5.5V, T = -40°C to +85°C, unless otherwise speci ..
MAX677ACPP ,V(cc): -0.3 to +20V; calibrated, low-drift, +4.096V / +5V / +10V precision voltage reference. For high resolution 16-bit ADCs and DACs, precision test and measurement systems, precision calibrated voltage-reference, high-accuracy transduceELECTRICAL CHARACTERISTICS-MAF (Vcc = +5V, IL = 0mA, TA = +25 tl unless otherWIse noted.) MAX ..
MAX677BCPP ,889mW; V(cc): -0.3 to +20V; calibrated, low-drift, +4.096V / +5V / +10V precision voltage reference. For high resolution 16-bit ADCs and DACs, precision test and measurement systems, precision calibrated voltage-reference, high-accuracy trFeatures . Lowest Temperature Drift: 1ppml°c Max Over -40°c to +85°C I.5pprnf'C Max Over -55 ..
MAX6780LTA+T ,Low-Power, 1%-Accurate Battery Monitor in µDFN and SC70 PackagesFeaturesThe MAX6775–MAX6781 low-power, 1%-accurate bat- ♦ 1.0%-Accurate Threshold Specified Overter ..
MB3778 ,Switching Regulator ControllerFUJITSU SEMICONDUCTORDS04-27203-6EDATA SHEETASSPSwitching Regulator ControllerMB3778nnnn DESCRIPTIO ..
MB3778PF ,Switching Regulator ControllerFUJITSU SEMICONDUCTORDS04-27203-6EDATA SHEETASSPSwitching Regulator ControllerMB3778nnnn DESCRIPTIO ..
MB3778PFV ,Switching Regulator ControllerFUJITSU SEMICONDUCTORDS04-27203-6EDATA SHEETASSPSwitching Regulator ControllerMB3778nnnn DESCRIPTIO ..
MB3782 ,Switching Regulator ControllerFUJITSU SEMICONDUCTORDS04-27205-4EDATA SHEETASSP Power Supplies BIPOLARSwitching Regulator Controll ..
MB3782PF ,Switching Regulator ControllerFUJITSU SEMICONDUCTORDS04-27205-4EDATA SHEETASSP Power Supplies BIPOLARSwitching Regulator Controll ..
MB3785A ,Switching Regulator Controller (4 Channels plus High-Precision, High-Frequency Capabilities)FUJITSU SEMICONDUCTORDS04-27208-1EDATA SHEETASSP BIPOLARSwitching Regulator Controller(4 Channels p ..

MAX6776LTA+T-MAX6776XKA+T-MAX6777XK+-MAX6780LTA+T
Low-Power, 1%-Accurate Battery Monitor in µDFN and SC70 Packages
General Description
The MAX6775–MAX6781 low-power, 1%-accurate bat-
tery monitors are available in the ultra-small µDFN
package (1.0mm x 1.5mm) and SC70 packages. These
low-power devices are ideal for monitoring single lithi-
um-ion (Li+) cells, or multicell alkaline/NiCd/NiMH
power sources. These devices offer single (MAX6775/
MAX6776/MAX6777/MAX6778) or dual (MAX6779/
MAX6780/MAX6781) low-battery outputs and feature
fixed or resistor-adjustable hysteresis. Hysteresis elimi-
nates the output chatter sometimes associated with bat-
tery voltage monitors, usually due to input-voltage noise
or battery terminal voltage recovery after load removal.
These devices are available in several versions: with
single- or dual-voltage monitors, and with fixed or
adjustable hysteresis. The MAX6775/MAX6776 offer a
single battery monitor and factory-set hysteresis of
0.5%, 5%, or 10%. The MAX6779/MAX6780/MAX6781
have two battery monitors in a single package and fac-
tory-set hysteresis of 0.5%, 5%, or 10%. The MAX6777/
MAX6778 offer a single battery monitor with external
inputs for the rising and falling thresholds, allowing
external hysteresis control.
For convenient interface with system power circuitry or
microprocessors, both open-drain and push-pull out-
puts are available. The single-channel devices are
available with open-drain or push-pull outputs. The
dual-channel devices are available with both outputs
open-drain, both outputs push-pull, or one of each
(see the Selector Guide). This family of devices is
offered in small 5-pin SC70 and ultra-small 6-pin µDFN
packages, and is fully specified over the -40°C to
+85°C extended temperature range.
Applications
Battery-Powered Systems (Single-Cell Li+ or
Multicell NiMH, NiCd, Alkaline)
Cell Phones/Cordless Phones
Pagers
Portable Medical Devices
PDAs
Electronic Toys
MP3 Players
Features1.0%-Accurate Threshold Specified Over
TemperatureSingle/Dual, Low-Battery Output OptionsLow 3µA Battery CurrentOpen-Drain or Push-Pull Low-Battery OutputsFixed or Adjustable HysteresisLow-Input Leakage Current Allows Use of Large
ResistorsGuaranteed Valid Low-Battery-Output Logic State
Down to VBATT= 1VImmune to Short Battery TransientsFully Specified from -40°C to +85°CSmall 5-Pin SC70 or Ultra-Small 6-Pin µDFN
(1mm x 1.5mm) Package
MAX6775–MAX6781
Low-Power, 1%-Accurate Battery
Monitors in µDFN and SC70 Packages
Ordering Information
LBI3.6VLBO
BATT
MAX6775
SHDNOUT
DC-DC
CONVERTER
Typical Operating Circuit
19-3774; Rev 4; 5/09
Ordering Information continued at end of data sheet.
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
MAX6775/MAX6776/MAX6779/MAX6780/MAX6781 are available
with factory-trimmed hysteresis. Specify trim by replacing “_”
with “A” for 0.5%, “B” for 5%, or “C” for 10% hysteresis.
PARTTEMP RANGEPIN-PACKAGE
MAX6775XK_+T-40°C to +85°C5 SC70
MAX6775LT_+T-40°C to +85°C6 µDFN
MAX6776XK_+T-40°C to +85°C5 SC70
MAX6776LT_+T-40°C to +85°C6 µDFN
MAX6777XK+T-40°C to +85°C5 SC70
MAX6777LT+T-40°C to +85°C6 µDFN
MAX6775–MAX6781
Low-Power, 1%-Accurate Battery
Monitors in µDFN and SC70 Packages
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VBATT= 1.6V to 5.5V, TA= -40°C to +85°C, unless otherwise specified. Typical values are at TA= +25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
BATT to GND............................................................-0.3V to +6V
LBI, LBL, LBH, LBI1, LBI2 to GND...............-0.3V to minimum of
((VBATT + 0.3V) and +6V)
LBO, LBO1, LBO2to GND (open-drain) .................-0.3V to +6V
LBO, LBO1, LBO2to GND (push-pull).........-0.3V to minimum of
((VBATT+ 0.3V) and +6V)
Input Current (all pins)........................................................20mA
Output Current (all pins).....................................................20mA
Continuous Power Dissipation (TA= +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C)..............247mW
6-Pin µDFN (derate 2.1mW°C above +70°C)..............168mW
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
TA = 0°C to +70°C1.05.5Operating Voltage Range
(Note 2)VBATTTA = -40°C to +85°C1.25.5V
VBATT = 3.7V, no load47Supply CurrentIQVBATT = 1.8V, no load3.26µA
FIXED HYSTERESIS (MAX6775/MAX6776/MAX6779/MAX6780/MAX6781)
0.5% hysteresis version1.20371.21591.2280
5% hysteresis version1.14931.16091.1725LBI, LBI_ Falling Threshold
(Note 3)VLBIF
10% hysteresis version1.08881.09981.1108
LBI Rising ThresholdVLBIR1.20981.2221.2342V
LBI Input Leakage Current0.2V ≤ VLBI ≤ VBATT - 0.2V-5+5nA
ADJUSTABLE HYSTERESIS (MAX6777/MAX6778)
LBL, LBH ThresholdVBATT = 1.8V to 5.5V1.20981.2221.2342V
LBL, LBH Input Leakage CurrentVBATT - 0.2V ≥ VLBL/LBH ≥ 0.2V-5+5nA
MAX6775–MAX6781
Low-Power, 1%-Accurate Battery
Monitors in µDFN and SC70 Packages
ELECTRICAL CHARACTERISTICS (continued)
(VBATT= 1.6V to 5.5V, TA= -40°C to +85°C, unless otherwise specified. Typical values are at TA= +25°C.) (Note 1)
Note 1:Devices are tested at TA= +25°C and guaranteed by design for TA=TMIN to TMAX, as specified.
Note 2:Operating range ensures low-battery output is in the correct state. Minimum battery voltage for electrical specification is 1.6V.
Note 3:The rising threshold is guaranteed to be higher than the falling threshold.
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
LOW-BATTERY OUTPUTS (LBO, LBO1, LBO2)
Propagation DelaytPDVLBI_ + 100mV to VLBI_ - 100mV9µs
Startup TimeVBATT rising above 1.6V3ms
VBATT ≥ 1.2V, ISINK = 100µA0.3
VBATT ≥ 2.7V, ISINK = 1.2mA0.3Output Low (Push-Pull or
Open-Drain)VOL
VBATT ≥ 4.5V, ISINK = 3.2mA0.3
VBATT ≥ 1.6V, ISOURCE = 100µA0.8 x
VBATT
VBATT ≥ 2.7V, ISOURCE = 500µA0.8 x
VBATTOutput High (Push-Pull )VOH
VBATT ≥ 4.5V, ISOURCE = 800µA0.8 x
VBATT
Output Leakage Current
(Open-Drain)Output not asserted, VLBO_ = 5.5V-100+100nA
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. TEMPERATURE
MAX6775 toc01
TEMPERATURE (°C)
SUPPLY CURRENT (3510-15
VBATT = 5V
VBATT = 3.6V
VBATT = 3V
VBATT = 2.4V
VBATT = 1.6V
PROPAGATION DELAY
vs. TEMPERATURE
MAX6775 toc02
TEMPERATURE (°C)
PROPAGATION DELAY (3510-15
VBATT = 5V
100mV OVERDRIVE
VBATT = 1.6V
MAXIMUM TRANSIENT DURATION
vs. THRESHOLD OVERDRIVE
MAX6775 toc03
THRESHOLD OVERDRIVE VTH - VCC (mV)
MAXIMUM TRANSIENT DURATION (
OUTPUT ASSERTED ABOVE THIS LINE
MAX6775–MAX6781
Low-Power, 1%-Accurate Battery
Monitors in µDFN and SC70 Packages
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
NORMALIZED THRESHOLD VOLTAGES
vs. TEMPERATURE, MAX67__A
MAX6775 toc04
TEMPERATURE (°C)
THRESHOLD VOLTAGE (mV)3510-15
NORMALIZED AT TA = +25°C
RISING
FALLING
NORMALIZED THRESHOLD VOLTAGES
vs. TEMPERATURE, MAX67__B
MAX6775 toc05
TEMPERATURE (°C)
THRESHOLD VOLTAGE (mV)3510-15
NORMALIZED AT TA = +25°C
RISING
FALLING
NORMALIZED THRESHOLD VOLTAGES
vs. TEMPERATURE, MAX67__C
MAX6775 toc06
TEMPERATURE (°C)
THRESHOLD VOLTAGE (mV)3510-15
NORMALIZED AT TA = +25°C
RISING
FALLING
LBO OUTPUT VOLTAGE
vs. SINK CURRENT
MAX6775 toc07
SINK CURRENT (mA)
OUTPUT VOLTAGE (V)963
VBATT = 5.0V
VBATT = 1.8VVBATT = 3.3V
LBO OUTPUT VOLTAGE
vs. SOURCE CURRENT
MAX6775 toc08
SOURCE CURRENT (mA)
OUTPUT VOLTAGE (V)321
VBATT = 5.0V
VBATT = 3.3V
VBATT = 1.8V
MAX6775–MAX6781
Low-Power, 1%-Accurate Battery
Monitors in µDFN and SC70 Packages
Pin Description
MAX6775/
MAX6776
MAX6777/
MAX6778
MAX6779/
MAX6780/
MAX6781
µDFNSC70µDFNSC70µDFN
NAMEFUNCTION1———GND2Reserved. Must be connected to GND. Do not use as the only
GND connection.2222GNDGround3———LBILow-Battery Input. Connect to the resistive divider to set the
trip level.44—LBO
Low-Battery Output, Active-Low. When VLBI/VLBL falls below
the falling threshold, LBO asserts. LBO deasserts when
VLBI/VLBH exceeds the rising threshold voltage.—5——N.C.No Connection. Not internally connected.5656BATTBattery Input. Power supply to the device.—11—LBHRising-Trip-Level Input. Connect to a resistive divider to set the
rising trip level.—33—LBLFalling-Trip-Level Input. Connect to a resistive divider to set the
falling trip level.———1LBI2Low-Battery Input 2. Connect to a resistive divider to set the
trip level.———3LBI1Low-Battery Input 1. Connect to a resistive divider to set the
trip level.——4LBO1
Low-Battery Output 1, Active-Low. When VLBI1 falls below the
falling threshold voltage, LBO1 asserts. LBO1 deasserts when
VLBI1 exceeds the rising threshold voltage. LBO1 is push-pull
on the MAX6779/MAX6781 and open-drain for the MAX6780.——5LBO2
Low-Battery Output 2, Active-Low. When VLBI2 falls below the
falling threshold voltage, LBO2 asserts. LBO2 deasserts when
VLBI2 exceeds the rising threshold voltage. LBO2 is open-drain
for the MAX6780/MAX6781 and push-pull for the MAX6779.
MAX6775–MAX6781
Detailed Description
These battery monitors have an active-low output that
asserts when the input falls below a set voltage. They
also offer hysteresis for noise immunity, and to remove
the possibility of output chatter due to battery terminal
voltage recovery after load removal. They are available
with one or two monitors per package, with push-pull or
open-drain outputs, and with internally set or externally
adjustable hysteresis (dual-channel devices offer only
internally fixed hysteresis). Figures 1, 2, and 3 show
block diagrams and typical connections. See the
Selector Guidefor details.
Low-Battery Output
All devices are offered with either push-pull or open-
drain outputs (see the Selector Guide). The MAX6781
has one push-pull output and one open-drain output,
configured as in Table 1.
On all devices with open-drain outputs an external
pullup resistor is required. The open-drain pullup resis-
tor can connect to an external voltage up to +6V,
regardless of the voltage at BATT.
Low-Power, 1%-Accurate Battery
Monitors in µDFN and SC70 Packages
Table 1. MAX6781 Outputs
DEVICELBO1LBO2
MAX6781Push-PullOpen-Drain
LBI1
LBO1
BATT
GND
VREF
VBATT
LBI2
LBO2
MAX6779
MAX6780
MAX6781
HYSTERESIS
CONTROL
Figure 2. Dual-Channel Fixed-Hysteresis Block Diagram
LBI
LBO
BATT
GND
VREF
VBATT
MAX6775
MAX6776
HYSTERESIS
CONTROL
Figure 1. Single-Channel Fixed-Hysteresis Block Diagram
LBL
LBO0
LBH
BATT
GND
RHYST
VREF
VBATT
MAX6777
MAX6778
Figure 3. Single-Channel Adjustable-Hysteresis Block Diagram

Partno	Mfg	Dc	Qty	Available	Descript
MAX6776LTA+T	MAXIM	N/a	20000	avai	Low-Power, 1%-Accurate Battery Monitor in µDFN and SC70 Packages
MAX6776XKA+T	MAXIM	N/a	927	avai	Low-Power, 1%-Accurate Battery Monitor in µDFN and SC70 Packages
MAX6777XK+	N/A	N/a	2500	avai	Low-Power, 1%-Accurate Battery Monitor in µDFN and SC70 Packages
MAX6780LTA+T	MAX	N/a	7500	avai	Low-Power, 1%-Accurate Battery Monitor in µDFN and SC70 Packages