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MAX6782, MAX6783, MAX6784, MAX6785, MAX6786, MAX6787, MAX6788, MAX6789, MAX6790
Low-Power, 1% Accurate, Dual-/Triple-/Quad-Level Battery Monitors in Small TDFN and TQFN Packages
Low-Power, 1% Accurate Monitors Allow Longer Battery Life
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Status
Active: In Production.
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 alkaline/NiCd/NiMH power sources. These devices feature fixed and adjustable hysteresis options to eliminate output 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 feature quad-level overvoltage detectors with complementary 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 in the full data sheet). 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.
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Data Sheet
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Key Features
- 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 VBATT = 1.05V
- Reverse-Battery Protection
- Immune to Short Battery Transients
- Fully Specified from -40°C to +85°C
- Small TDFN and TQFN Packages
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Applications/Uses
- Battery-Powered Systems (Single-Cell Li+ or Multicell NiMH, NiCd, Alkaline)
- Cell Phones/Cordless Phones
- Electronic Toys
- MP3 Players
- Pagers
- PDAs
- Portable Medical Devices
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Key Specifications:
| Supervisors (2 Monitored Voltages) |
| Part Number |
Interface |
Reset Thresh.
(V) |
Reset Out |
Watchdog Feature |
Supervisor Features |
Reset Thresh. Accur.
(%) |
ICC
(µA) |
Budgetary Price |
| @ +25°C |
max |
See Notes |
| MAX6786 |
R/C Adjustable |
| 0 to 1.2 | | 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
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No Watchdog |
| Power Fail Comparator/Low Battery Detect | | w/Hysteresis (>5%) |
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1 |
10 |
$1.43 @1k |
| MAX6787 |
R/C Adjustable |
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$1.43 @1k |
| MAX6788 |
| Factory Fixed | | R/C Adjustable |
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| Active Low | | Open Drain | | Push-Pull |
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$1.43 @1k |
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See All Supervisors (2 Monitored Voltages) (84)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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| Supervisors (3 Monitored Voltages) |
| Part Number |
Interface |
Reset Thresh.
(V) |
Reset Out |
Watchdog Feature |
Supervisor Features |
Reset Thresh. Accur.
(%) |
ICC
(µA) |
Budgetary Price |
| @ +25°C |
max |
See Notes |
| MAX6784 |
| Factory Fixed | | R/C Adjustable |
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| 0 to 1.2 | | 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
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No Watchdog |
| Power Fail Comparator/Low Battery Detect | | w/Hysteresis (>5%) |
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1 |
10 |
$1.77 @1k |
| MAX6785 |
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$1.77 @1k |
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See All Supervisors (3 Monitored Voltages) (32)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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| Supervisors (4 Monitored Voltages) |
| Part Number |
Interface |
Reset Thresh.
(V) |
Reset Out |
Watchdog Feature |
Supervisor Features |
Reset Thresh. Accur.
(%) |
ICC
(µA) |
Budgetary Price |
| @ +25°C |
max |
See Notes |
| MAX6782 |
| Factory Fixed | | R/C Adjustable |
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| 0 to 1.2 | | 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
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No Watchdog |
- |
1 |
10 |
$2.21 @1k |
| MAX6783 |
| Factory Fixed | | R/C Adjustable |
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- |
$2.21 @1k |
| MAX6788 |
| Factory Fixed | | R/C Adjustable |
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| Active Low | | Open Drain | | Push-Pull |
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| Power Fail Comparator/Low Battery Detect | | w/Hysteresis (>5%) |
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$1.43 @1k |
| MAX6789 |
- |
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Overvoltage/Window Monitor |
$2.30 @1k |
| MAX6790 |
- |
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Overvoltage/Window Monitor |
$2.30 @1k |
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See All Supervisors (4 Monitored Voltages) (26)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Typical Operating Circuit
More Information
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Information Index
Document Ref.: 19-0541
Rev 3;
2010-03-31
This page last modified: 2010-03-31
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