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Maxim > Solutions > Cordless Phones
Battery Monitors/Voltage Detectors
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| Display |
Title/Parts |
Key Advantages |
| QV PDF |
USB/AC Adapter, Li+ Linear Battery Charger with Integrated 50mΩ Battery Switch in TDFN
MAX8856
| Delivers Safe and Fast-Charging of Handheld Devices for a Single-Cell Li+ Battery from a USB/AC Adapter |
| QV PDF |
Low-Power, 1%-Accurate Battery Monitor in µDFN and SC70 Packages
MAX6775, MAX6776, MAX6777, MAX6778, MAX6779, MAX6780, MAX6781
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| QV PDF |
Ultra-Low-Power Voltage Detectors and µP Supervisory Circuits
MAX6461, MAX6462, MAX6463, MAX6464, MAX6465, MAX6466
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| QV PDF |
High-Voltage, Low-Current Voltage Monitors in SOT Packages
MAX6457, MAX6458, MAX6459, MAX6460
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| QV PDF |
Low-Power, Single-/Dual-Level Battery Monitors with Hysteresis and Integrated µP Reset
MAX6439, MAX6440, MAX6441, MAX6442
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| QV PDF |
3-Pin, Ultra-Low-Power SC70/SOT23 Voltage Detectors
MAX6375, MAX6376, MAX6377, MAX6378, MAX6379, MAX6380
| Industry's Smallest, Lowest-Power Voltage Detectors |
| Key Specifications: Battery Chargers |
| Part Number |
Cell Chemistry |
Lithium Ion Cells |
Protected VIN
(V) |
Charging VIN
(V) |
Charge Rate Set by |
Max. ICHG
(A) |
Charge Termination |
Charge Regulation |
Features |
EV Kit |
Oper. Temp.
(°C) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
| max |
max |
≥ |
max w/pins |
| MAX8856 |
|
1 |
14 |
5.5 |
| Logic Input | | Preset | | Resistor |
|
1 |
Min. Charge Current |
Linear |
| Dual USB/Adapter Input | | Input Current Limit | | Internal FET/Transistor | | Smart Power Selector | | Thermal Die Regulation | | Thermistor Input | | USB Input |
|
Yes |
-40 to +85 |
|
9.6 |
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See All Battery Chargers (60)
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| Key Specifications: Supervisors (1 Monitored Voltage) |
| Part Number |
Reset Thresh.
(V) |
Reset Out |
Reset Out |
tRESET |
Watchdog Feature |
Supervisor Features |
Reset Thresh. Accur.
(%) |
ICC
(µA) |
| Active Low |
Active High |
min |
@ +25°C |
max |
| MAX6775 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 | | >=5.5 |
|
Push-Pull |
- |
<1ms |
No Watchdog |
Power Fail Comparator/Low Battery Detect |
1 |
7 |
| MAX6776 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 | | >=5.5 |
|
Open Drain |
- |
<1ms |
Power Fail Comparator/Low Battery Detect |
1 |
7 |
| MAX6777 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 | | >=5.5 |
|
Push-Pull |
- |
<1ms |
Power Fail Comparator/Low Battery Detect |
1 |
7 |
| MAX6778 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 | | >=5.5 |
|
Open Drain |
- |
<1ms |
Power Fail Comparator/Low Battery Detect |
1 |
7 |
| MAX6461 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
|
Push-Pull |
- |
<1ms |
- |
1 |
3.5 |
| MAX6462 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
|
- |
Push-Pull |
<1ms |
- |
1 |
3.5 |
| MAX6463 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
|
Open Drain |
- |
<1ms |
- |
1 |
3.5 |
| MAX6464 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
|
Push-Pull |
- |
85ms to 300ms |
- |
2.5 |
3.5 |
| MAX6465 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
|
- |
Push-Pull |
85ms to 300ms |
- |
2.5 |
3.5 |
| MAX6466 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
|
Open Drain |
- |
85ms to 300ms |
- |
2.5 |
3.5 |
| MAX6457 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 | | >=5.5 |
|
Open Drain |
- |
|
| High Voltage (>6V) | | Latched Output |
|
- |
12.5 |
| MAX6458 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 | | >=5.5 |
|
Open Drain |
- |
|
| High Voltage (>6V) | | Latched Output | | Overvoltage/Window Monitor |
|
- |
12.5 |
| MAX6460 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 | | >=5.5 |
|
- |
Open Drain |
<1ms |
| High Voltage (>6V) | | Overvoltage/Window Monitor |
|
- |
12.5 |
| MAX6439 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
|
Open Drain |
- |
|
| Manual Reset | | Power Fail Comparator/Low Battery Detect |
|
2.5 |
2.5 |
| MAX6440 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
|
Push-Pull |
- |
|
| Manual Reset | | Power Fail Comparator/Low Battery Detect |
|
2.5 |
2.5 |
| MAX6441 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
|
Open Drain |
- |
|
| Manual Reset | | Power Fail Comparator/Low Battery Detect |
|
2.5 |
2.5 |
| MAX6442 |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
|
Push-Pull |
- |
|
| Manual Reset | | Power Fail Comparator/Low Battery Detect |
|
2.5 |
2.5 |
| MAX6375 |
|
|
Push-Pull |
<1ms |
- |
2.5 |
0.5 |
| MAX6376 |
|
|
Push-Pull |
<1ms |
- |
2.5 |
0.5 |
| MAX6377 |
|
Open Drain |
- |
<1ms |
- |
2.5 |
0.5 |
| MAX6378 |
|
Open Drain |
- |
<1ms |
- |
2.5 |
0.5 |
| MAX6379 |
|
Open Drain |
Push-Pull |
<1ms |
- |
2.5 |
0.5 |
| MAX6380 |
|
Open Drain |
- |
<1ms |
- |
2.5 |
0.5 |
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See All Supervisors (1 Monitored Voltage) (274)
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| Key Specifications: Supervisors (2 Monitored Voltages) |
| Part Number |
Interface |
Reset Thresh.
(V) |
Reset Out |
tRESET |
Watchdog Feature |
Supervisor Features |
Reset Thresh. Accur.
(%) |
ICC
(µA) |
| Active Low |
min |
@ +25°C |
max |
| MAX6779 |
R/C Adjustable |
| 1.2 to 1.8 | | 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 | | >=5.5 |
|
Push-Pull |
<1ms |
No Watchdog |
Power Fail Comparator/Low Battery Detect |
1 |
7 |
| MAX6780 |
Open Drain |
Power Fail Comparator/Low Battery Detect |
1 |
7 |
| MAX6781 |
|
Power Fail Comparator/Low Battery Detect |
1 |
7 |
| MAX6459 |
Open Drain |
| Adjustable Reset Input | | High Voltage (>6V) | | Overvoltage/Window Monitor |
|
- |
12.5 |
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See All Supervisors (2 Monitored Voltages) (84)
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