MAX6784TCA+ Maxim Integrated Products, MAX6784TCA+ Datasheet

IC BATT MON TRPL .5% 12TQFN

MAX6784TCA+

Manufacturer Part Number
MAX6784TCA+
Description
IC BATT MON TRPL .5% 12TQFN
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX6782TEB.pdf (17 pages)

Specifications of MAX6784TCA+

Function
Battery Monitor
Battery Type
Alkaline, Li-Ion, NiCd, NiMH
Voltage - Supply
1.2 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
12-TQFN Exposed Pad
Number Of Voltages Monitored
3
Monitored Voltage
- 0.3 V to + 6 V
Undervoltage Threshold
0.5994 V, Adjustable
Overvoltage Threshold
0.6115 V, Adjustable
Output Type
Active Low, Push-Pull
Manual Reset
Not Resettable
Watchdog
No Watchdog
Battery Backup Switching
Backup
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1.2 V
Supply Current (typ)
10 uA
Maximum Power Dissipation
1333 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Power Fail Detection
No
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
19-0541; Rev 3; 3/10
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 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 1% Accurate Threshold Specified Over Full
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
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 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.
MAX6782TE_+
MAX6783TE_+
MAX6784TC_+
MAX6785TC_+
Temperature Range
Down to V
PART
Single
Single
OV
—
—
—
—
—
—
—
BATT
Push-Pull/Open Drain
= 1.05V
OUTPUT TYPE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
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
—
—
1

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MAX6784TCA+ Summary of contents

Page 1

... 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 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’ ...

Page 2

Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND.) BATT.........................................................................-0.3V to +6V IN1–IN4, LBH1, LBL1, LBH2, LBL2 ..................-0.3V to Min ((V HADJ1–HADJ4, REF .......-0.3V to Min ((V LBO1–LBO4 (push-pull) ...

Page 3

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 MAX6782–MAX6788 LBO_ Propagation ...

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

Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages (V = 3.6V +25°C, unless otherwise noted.) BATT A SUPPLY CURRENT vs. TEMPERATURE 8 BATT 7 3.6V BATT 7.0 6.5 6.0 ...

Page 6

Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages (V = 3.6V +25°C, unless otherwise noted.) BATT A LBO OUTPUT VOLTAGE LOW vs. SINK CURRENT 0 1.8V BATT V = 3.3V BATT 0.5 ...

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 ...

Page 8

Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages MAX6786/MAX6787/MAX6788 PIN NAME 1 LBL1 Falling Trip Level Input 1. Connect to an external resistive divider to set the falling trip level. 2 LBH1 Rising Trip Level Input ...

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

Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages V INR V INF IN_ V HALL V HADJ_ LBO_ A) NORMAL OPERATION FOR V < V HADJ_ V INR V INF IN_ V HADJ_ V HALH LBO_ ...

Page 12

Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages IN_ CLEAR Figure 5. MAX6789/MAX6790 Timing MAX6782–MAX6785 Hysteresis Factory-Set Hysteresis The MAX6782–MAX6785 have factory-set hysteresis for ease of use and reduced external parts count. ...

Page 13

Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages Reference Output The reference output can provide up to 1mA of output current. The output is not buffered. Excessive loading affects the accuracy of the thresholds. An external ...

Page 14

Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages Monitoring a Battery Voltage Higher than the Allowable V For monitoring higher voltages, supply a voltage to BATT, which is within the specified supply range, and power the ...

Page 15

... Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages PART MAX6782TEA+ MAX6782TEB+ MAX6782TEC+ MAX6783TEA+ MAX6783TEB+ MAX6783TEC+ MAX6784TCA+ MAX6784TCB+ MAX6784TCC+ MAX6785TCA+ MAX6785TCB+ MAX6785TCC+ MAX6786TA+ MAX6787TA+ MAX6788TA+ MAX6789TB+ MAX6790TB+ ______________________________________________________________________________________ BATT IN1 LBO1 LBO2 IN2 MAX6782 MAX6783 LBO3 IN3 LBO4 ...

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 1 2 THIN QFN 8 7 MAX6786 MAX6787 MAX6788 + 1 2 ...

Page 17

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 17 © 2010 Maxim Integrated Products ...

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