MAX6782_10 Datasheet, PDF (1/17 Pages) Maxim Integrated Products – Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages

19-0541; Rev 3; 3/10
Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level
Battery Monitors in Small TDFN and TQFN Packages
General Description
The MAX6782–MAX6790 are low-power, 1% accurate,
dual-/triple-/quad-level battery monitors offered in small
TDFN and TQFN packages. These devices are ideal for
monitoring single lithium-ion (Li+) cells, or multicell alka-
line/NiCd/NiMH power sources. These devices feature
fixed and adjustable hysteresis options to eliminate out-
put chattering associated with battery-voltage monitors.
The MAX6782/MAX6783 offer four battery monitors in a
single package with factory-set (0.5%, 5%, 10%) or
adjustable hysteresis. The MAX6784/MAX6785 provide
three battery monitors with factory-set (0.5%, 5%, 10%)
or adjustable hysteresis. The MAX6786/MAX6787/
MAX6788 offer two battery monitors with external inputs
for setting the rising and falling thresholds, allowing
external hysteresis control. The MAX6789/MAX6790 fea-
ture quad-level overvoltage detectors with complemen-
tary outputs.
The MAX6782–MAX6790 are offered with either open-drain
or push-pull outputs. The MAX6782/MAX6784/MAX6786/
MAX6789 are available with push-pull outputs while the
MAX6783/MAX6785/MAX6787/MAX6790 are available with
open-drain outputs. The MAX6788 is available with one
open-drain output and one push-pull output (see the
Selector Guide). This family of devices is offered in space-
saving TDFN and TQFN 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
Features
o 1% Accurate Threshold Specified Over Full
Temperature Range
o Dual-/Triple-/Quad, Low-Battery Output Options
o Low 5.7µA Battery Current
o Open-Drain or Push-Pull Outputs
o Fixed or Adjustable Hysteresis
o Low Input Bias Current
o Guaranteed Valid Low-Battery-Output Logic State
Down to V_BATT = 1.05V
o Reverse-Battery Protection
o Immune to Short Battery Transients
o Fully Specified from -40°C to +85°C
o Small TDFN and TQFN Packages
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX6782TE_+
-40°C to +85°C
16 TQFN-EP*
MAX6783TE_+
-40°C to +85°C
16 TQFN-EP*
MAX6784TC_+
-40°C to +85°C
12 TQFN-EP*
MAX6785TC_+
-40°C to +85°C
12 TQFN-EP*
Ordering Information continued at end of data sheet.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
The MAX6782/MAX6783/MAX6784/MAX6785 are available with
factory-trimmed hysteresis. Specify trim by replacing “_” with
“A” for 0.5%, “B” for 5%, or “C” for 10% hysteresis.
Pin Configuration and Typical Operating Circuit appear at
end of data sheet.
Selector Guide
PART
MONITOR LEVEL LBO OUTPUT
OV
OV
OUTPUT TYPE
HYSTERESIS
MAX6782TE_+
4
Quad
—
—
Push-Pull
Fixed/Adj
MAX6783TE_+
4
Quad
—
—
Open Drain
Fixed/Adj
MAX6784TC_+
3
Triple
—
—
Push-Pull
Fixed/Adj
MAX6785TC_+
3
Triple
—
—
Open Drain
Fixed/Adj
MAX6786TA+
2
Dual
—
—
Push-Pull
Adj
MAX6787TA+
2
Dual
—
—
Open Drain
Adj
MAX6788TA+
2
Dual
—
—
Push-Pull/Open Drain
Adj
MAX6789TB+
4
—
Single
Single
Push-Pull
—
MAX6790TB+
4
—
Single
Single
Open Drain
—
Note: All devices are available in tape and reel in 2.5k increments. For tape and reel orders, add a “T” after the “+” to complete the part
number.
________________________________________________________________ Maxim Integrated Products 1
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.