MAX14672
Bidirectional Current-Blocking, High-Input Overvoltage Protectors with Adjustable OVLO
OVP Enables Multiple, Faster Charging Power Sources with High Voltage
MyMaxim SubscriptionsProduct Details
Key Features
Applications/Uses
| # Channels | 1 |
| VIN (V) (min) | 2.2 |
| VIN (V) (max) | 29 |
| Over Voltage Trip Level (V) | 5.825 |
| Over Volt. Flag | Open-Drain |
| tGATE (On) (ms) | 1.5 |
| tGATE (Off) (µs) | 1 |
| Package/Pins | TDFN/10 |
| Budgetary Price (See Notes) | 1.02 |
Simplified Block Diagram
Technical Docs
| Data Sheet | Bidirectional Current-Blocking, High-Input Overvoltage Protectors with Adjustable OVLO | Oct 05, 2016 |
Circuit Protection You Might Not Have Thought AboutSupport & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Parameters
| # Channels | 1 |
| VIN (V) (min) | 2.2 |
| VIN (V) (max) | 29 |
| Over Voltage Trip Level (V) | 5.825 |
| Over Volt. Flag | Open-Drain |
| tGATE (On) (ms) | 1.5 |
| tGATE (Off) (µs) | 1 |
| Package/Pins | TDFN/10 |
| Budgetary Price (See Notes) | 1.02 |
Key Features
- Protect High-Power Portable Devices
- Wide Operating Input Voltage Protection from +3V to +28V
- +100V Surge Capability
- 4.5A Continuous Current Capability (WLP Package)
- Integrated 65mΩ (typ) n-Channel MOSFET Switch (WLP Package)
- Flexible Overvoltage Protection Design
- Wide +5V to +22V Adjustable OVLO Threshold Range
- Active-Low ACOK and ACOK Indicate Input is in Range
- OTG Enable Allows OUT to Supply IN
- Preset Accurate Internal OVLO Thresholds:
- 6.8V ±3% (MAX14670)
- 15.5V ±3% (MAX14671)
- 5.825V ±3% (MAX14672)
- 22V ±3% (MAX14673)
- Additional Protection Features Increase System Reliability
- OUT-IN Reverse Bias Blocking Capability
- Soft-Start to Minimize Inrush Current
- Internal 15ms Startup Debounce
- Thermal Shutdown Protection
- Space Saving
- 15-Bump, 1.6mm x 2.1mm, WLP Package
- 10-Pin, 3mm x 3mm, TDFN Package
Applications/Uses
- Charging USB Hosts
- e-Readers
- PC Notebooks
- Smart Phones
- Tablets
Description
The MAX14670–MAX14673 provide protection to valuable consumer circuits against positive voltage faults up to +28VDC. An internal clamp also protects the devices from surges up to +100V. The device is able to disconnect the system from its output terminal when wrong input conditions are detected.
The MAX14670–MAX14673 overvoltage protection devices feature low 65mΩ (typ), WLP package on-resistance (RON) internal FETs, effectively minimizing the voltage drop across the device. When the input voltage exceeds the overvoltage threshold, the internal FET is turned off to prevent damage to the protected components.
The overvoltage protection threshold can be adjusted with optional external resistors to any voltage between 5V and 22V. The devices automatically choose the accurate internal trip thresholds when the overvoltage lockout input (OVLO) is set lower than the external OVLO select voltage. The internal OVLO are preset to typical 6.8V (MAX14670), 15.5V (MAX14671), 5.825V (MAX14672), or 22V (MAX14673).
The MAX14670–MAX14673 feature reverse bias blocking capability. Unlike other overvoltage protectors, when the MAX14670–MAX14673 are disabled, the voltage applied to OUT does not feed back into IN. These devices also feature an OTG enable pin that allows OUT voltage to supply IN. The MAX14670–MAX14673 also have thermal shutdown protection against over load conditions.
The MAX14670–MAX14673 are specified over the extended -40°C to +85°C temperature range. The MAX14670/MAX14671 are available in a 15-bump WLP package and the MAX14672/MAX14673 are available in a 10-pin TDFN package.
Technical Docs
| Data Sheet | Bidirectional Current-Blocking, High-Input Overvoltage Protectors with Adjustable OVLO | Oct 05, 2016 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Request a Quote