MAX6782 MAXIM [Maxim Integrated Products], MAX6782 Datasheet

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MAX6782

Manufacturer Part Number
MAX6782
Description
Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MAX6782TEB
Manufacturer:
MAXIM
Quantity:
35
19-0541; Rev 1; 10/06
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.
Battery-Powered Systems
(Single-Cell Li+ or
Multicell NiMH, NiCd,
Alkaline)
Cell Phones/Cordless
Phones
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.
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.
MAX6782TE_+
MAX6783TE_+
MAX6784TC_+
MAX6785TC_+
MAX6786TA+
MAX6787TA+
MAX6788TA+
MAX6789TB+
MAX6790TB+
Battery Monitors in Small TDFN and TQFN Packages
PART
Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Maxim Integrated Products
MONITOR LEVEL
General Description
4
4
3
3
2
2
2
4
4
Pagers
Portable Medical Devices
PDAs
Electronic Toys
MP3 Players
Applications
LBO OUTPUT
Quad
Quad
Triple
Triple
Dual
Dual
Dual
Single
Single
OV
o
o
o
o
o
o
o
o
o
o
o
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.
MAX6782TE_+
MAX6783TE_+
MAX6784TC_+
MAX6785TC_+
1% Accurate Threshold Specified Over Full
Temperature Range
Dual-/Triple-/Quad, Low-Battery Output Options
Low 5.7µA Battery Current
Open-Drain or Push-Pull Outputs
Fixed or Adjustable Hysteresis
Low Input Bias Current
Guaranteed Valid Low-Battery-Output Logic State
Down to V
Reverse-Battery Protection
Immune to Short Battery Transients
Fully Specified from -40°C to +85°C
Small TDFN and TQFN Packages
PART
Single
Single
OV
BATT
Push-Pull/Open Drain
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
OUTPUT TYPE
= 1.05V
Open Drain
Open Drain
Open Drain
Open Drain
Ordering Information
Push-Pull
Push-Pull
Push-Pull
Push-Pull
Selector Guide
PIN-
PACKAGE
16 TQFN-EP*
16 TQFN-EP*
12 TQFN-EP*
12 TQFN-EP*
HYSTERESIS
Features
Fixed/Adj
Fixed/Adj
Fixed/Adj
Fixed/Adj
Adj
Adj
Adj
T1633-4
T1633-4
T1233-1
T1233-1
CODE
PKG
1

Related parts for MAX6782

MAX6782 Summary of contents

Page 1

... 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 ...

Page 2

... Typical values are at T BATT A PARAMETER SYMBOL Operating Voltage Range (Note 2) Supply Current Startup Time (Note 3) MAX6782/MAX6783/MAX6784/MAX6785 IN_ Falling Threshold (Note 4) IN_ Rising Threshold (Note 4) IN_, HADJ_ Input Leakage Current Reference Output Reference Load Regulation Reference Temperature TEMPCO ...

Page 3

... ELECTRICAL CHARACTERISTICS (continued 1.6V to 5.5V -40°C to +85°C, unless otherwise specified. Typical values are at T BATT A PARAMETER SYMBOL MAX6782–MAX6788 LBO_ Propagation Delay LBO_ Output Low Voltage (Push- Pull or Open Drain) LBO_ Output High Voltage (Push-Pull) (Note 5) LBO_ Output Leakage Current (Open Drain) ...

Page 4

Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages ELECTRICAL CHARACTERISTICS (continued 1.6V to 5.5V -40°C to +85°C, unless otherwise specified. Typical values are at T BATT A PARAMETER SYMBOL OV Output High ...

Page 5

... OUTPUT ASSERTED ABOVE THIS LINE 900 800 700 600 500 400 300 200 100 100 THRESHOLD OVERDRIVE (mV) NORMALIZED THRESHOLD VOLTAGES vs. TEMPERATURE (MAX6782TEC) 1.005 NORMALIZED +25°C A 1.004 1.003 1.002 RISING 1.001 1.000 0.999 0.998 FALLING 0.997 0.996 0.995 85 ...

Page 6

... MAX6782TEB 0.6094 0.6093 0.6092 0.6091 0.6090 0.6089 0.6088 0.6087 0.6086 0.6085 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 SUPPLY VOLTAGE (V) REFERENCE VOLTAGE vs. TEMPERATURE 0.620 MAX6782TEA 0.616 0.612 0.608 0.604 0.600 5 -40 - TEMPERATURE (°C) CLEAR LATCH CIRCUIT 5.0 5.5 100µs/div 60 85 MAX6782 toc12 IN_ 5V/div CLEAR 5V/div OV 5V/div ...

Page 7

... Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages MAX6782/MAX6783/MAX6784/MAX6785 PIN NAME MAX6782/ MAX6784/ MAX6783 MAX6785 1 1 IN2 2 2 IN3 3 — IN4 4 3 REF 5 4 HADJ1 6 5 HADJ2 7 6 HADJ3 8 — HADJ4 LBO4 9 — LBO3 10 7 LBO2 11 8 LBO1 ...

Page 8

... These devices also feature a latch and a clear function. Figures 1, 2, and 3 show the simplified block diagrams for the MAX6782–MAX6790. See the Selector Guide . Pin Description (continued) falls below the falling threshold voltage. LBO2 falls below the falling threshold voltage ...

Page 9

... Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages REFERENCE HYSTERESIS MAX6782 MAX6783 MAX6784 MAX6785 ( ) MAX6782/MAX6783 ONLY Figure 1. MAX6782–MAX6785 Block Diagram R 1 LBL_ R HYST LBH_ R 2 Figure 2. MAX6786/MAX6787/MAX6788 Block Diagram ...

Page 10

Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages IN_ REF CLEAR Figure 3. MAX6789/MAX6790 Block Diagram Low-Battery/Overvoltage Output All devices are offered with either push-pull or open- drain outputs (see the Selector Guide ). The MAX6788 ...

Page 11

... HADJ_ Figure 4. MAX6782–MAX6785 Timing ...

Page 12

... The MAX6782–MAX6785 can also be configured for externally adjustable hysteresis. Connect a resistive divider from REF to HADJ_ and to GND (Figure 6) to set the hysteresis voltage ...

Page 13

... Calculating an External Hysteresis Resistive Divider (MAX6782–MAX6785) To set the hysteresis, place a resistive divider from REF to HADJ_ as shown in Figure 6. The resistive divider sets voltage on HADJ_, which controls the falling thresh- ...

Page 14

... GND or to the center node of a resis- tive divider going from REF to GND. LBO_ • The outputs may only be connected to devices pow- ered by the same battery as the MAX6782– MAX6790. Note that the MAX6782–MAX6790 will not protect other devices in the circuit. ...

Page 15

... MAX6789TB+T +AEK MAX6790TB+T +AEL + Denotes lead-free package. +AAV * EP = Exposed paddle. +AAW The MAX6782/MAX6783/MAX6784/MAX6785 are available with +AAX factory-trimmed hysteresis. Specify trim by replacing “_” with “A” for 0.5%, “B” for 5%, or “C” for 10% hysteresis. +AAY +AAZ +ABA +APU +APV ...

Page 16

... Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages TOP VIEW BATT 13 GND 14 MAX6782 N.C. 15 MAX6783 + 16 IN1 THIN QFN 8 7 MAX6786 MAX6787 MAX6788 + 1 2 TDFN ...

Page 17

Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages ...

Page 18

Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages ...

Page 19

Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages ...

Page 20

Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) COMMON DIMENSIONS MIN. MAX. SYMBOL ...

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