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PDF MAX6789 Data sheet ( Hoja de datos )
| Número de pieza | MAX6789 | |
| Descripción | (MAX6782 - MAX6790) Battery Monitors | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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19-0541; Rev 1; 10/06
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 VBATT = 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
PKG
CODE
MAX6782TE_+ -40°C to +85°C 16 TQFN-EP* T1633-4
MAX6783TE_+ -40°C to +85°C 16 TQFN-EP* T1633-4
MAX6784TC_+ -40°C to +85°C 12 TQFN-EP* T1233-1
MAX6785TC_+ -40°C to +85°C 12 TQFN-EP* T1233-1
Ordering Information continued at end of data sheet.
+Denotes lead-free package.
*EP = Exposed paddle.
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/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
DataSheet4 U .com
1 page  
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Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level
Battery Monitors in Small TDFN and TQFN Packages
(VBATT = 3.6V, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
SUPPLY CURRENT
vs. TEMPERATURE
8.0
VBATT = 5V
7.5 VBATT = 3.6V
7.0
6.5
6.0
5.5
5.0 VBATT = 1.8V
4.5
4.0
-40
-15 10 35 60
TEMPERATURE (°C)
85
PROPAGATION DELAY
vs. TEMPERATURE
70
VIN_ = ±100mV OVERDRIVE
60
50
40
30
20
10
0
-40
-15 10 35 60
TEMPERATURE (°C)
85
MAXIMUM TRANSIENT DURATION
vs. THRESHOLD OVERDRIVE
1000
900 OUTPUT ASSERTED ABOVE THIS LINE
800
700
600
500
400
300
200
100
0
1 10 100 1000
THRESHOLD OVERDRIVE (mV)
NORMALIZED THRESHOLD VOLTAGES
vs. TEMPERATURE (MAX6782TEA)
1.005
1.004 NORMALIZED AT TA = +25°C
1.003
1.002 FALLING
1.001
1.000
0.999
0.998
0.997
RISING
0.996
0.995
-40
-15 10 35 60
TEMPERATURE (°C)
85
NORMALIZED THRESHOLD VOLTAGES
vs. TEMPERATURE (MAX6782TEB)
1.005
1.004 NORMALIZED AT TA = +25°C
1.003
1.002
1.001
RISING
1.000
0.999
0.998
FALLING
0.997
0.996
0.995
-40
-15 10 35 60
TEMPERATURE (°C)
85
NORMALIZED THRESHOLD VOLTAGES
vs. TEMPERATURE (MAX6782TEC)
1.005
1.004 NORMALIZED AT TA = +25°C
1.003
1.002
1.001
RISING
1.000
0.999
0.998
0.997
FALLING
0.996
0.995
-40
-15 10 35 60
TEMPERATURE (°C)
85
_______________________________________________________________________________________ 5
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Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level
Battery Monitors in Small TDFN and TQFN Packages
VINR
VINF
IN_
VHALL
VHADJ_
tPD
LBO_
A) NORMAL OPERATION FOR VHADJ_ < VHALL.
INTERNAL HYSTERESIS
tPD
VINR
VINF
IN_
VHADJ_
VHALH
INTERNAL HYSTERESIS
tPD
tPD
LBO_
B) NORMAL OPERATION FOR VHADJ_ > VHALH.
Figure 4. MAX6782–MAX6785 Timing
______________________________________________________________________________________ 11
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| PDF Descargar | [ Datasheet MAX6789.PDF ] | |
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