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MAX14575B
250mA to 2.5A Adjustable Current-Limit Switches
Wide 250mA to 2.5A Current-Limit Range Has Considerable Versatility
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Key Features
Applications/Uses
Parametric specs for Current Limit and USB Power Switches
| Current Limit (mA) (min) | 250 |
| Current Limit (mA) (max) | 2500 |
| # Power Switches | 1 |
| USB | Yes |
| Fault Indicator | Yes |
| Current Limit Accuracy (%) | 10 |
| Current Limit Set By | Resistor |
| Lowest Adj. Setting (A) | 0.25 |
| RON (Ω) (typ) | 0.032 |
| VSUPPLY (V) (min) | 2.3 |
| VSUPPLY (V) (max) | 5.5 |
| Oper. Temp. (°C) | -40 to +85 |
| Package/Pins | TDFN/8 |
| Budgetary Price (See Notes) | 2.3 |
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Simplified Block Diagram
Technical Docs
| Data Sheet | 250mA to 2.5A Adjustable Current-Limit Switches | Jan 09, 2015 |
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 .
Parameters
Parametric specs for Current Limit and USB Power Switches
| Current Limit (mA) (min) | 250 |
| Current Limit (mA) (max) | 2500 |
| # Power Switches | 1 |
| USB | Yes |
| Fault Indicator | Yes |
| Current Limit Accuracy (%) | 10 |
| Current Limit Set By | Resistor |
| Lowest Adj. Setting (A) | 0.25 |
| RON (Ω) (typ) | 0.032 |
| VSUPPLY (V) (min) | 2.3 |
| VSUPPLY (V) (max) | 5.5 |
| Oper. Temp. (°C) | -40 to +85 |
| Package/Pins | TDFN/8 |
| Budgetary Price (See Notes) | 2.3 |
Key Features
- Integrated Protection Reduces Board Space and Makes Systems More Robust
- ±10% Overload Current Limit (500mA to 2.5A)
- Reverse-Current Protection
- 1µA (max) Shutdown Reverse Current
- Short-Circuit Protection
- Thermal Shutdown Protection
- Low Power Dissipation Reduces Heat and/or Battery Consumption
- 130µA (typ) Low Supply Current
- 32mΩ (typ) Low RON
- Flexible Part Can Easily Be Reused In Multiple Projects
- Adjustable Current Limit (250mA to 2500mA)
- +2.3V to +5.5V Supply Voltage Range
Applications/Uses
- Data Modem Cards
- Portable Media Players
- RF Power Amplifier in Cell Phones
- SDXC Card Power-Supply Protection
- USB Ports
- UTCA/ATCA Platforms
Description
The MAX14575A/MAX14575AL/MAX14575B/MAX14575C programmable current-limit switches feature internal current limiting to prevent damage to host devices due to faulty load conditions. These current-limit switches feature a low 32mΩ (typ) on-resistance and operate from a +2.3V to +5.5V input-voltage range. The current limit is adjustable from 250mA to 2.5A, making these devices ideal for charging a large load capacitor, as well as for high-current load switching applications.
Each device in the family handles an overcurrent event differently depending on the option selected. The MAX14575A/MAX14575AL feature an autoretry mode; the MAX14575A has active-high EN polarity, while the MAX14575AL has active-low EN polarity. The MAX14575B has latch-off mode, and the MAX14575C features a continuous current-limit mode. Additional safety features include thermal-shutdown protection to prevent overheating and reverse-current blocking to prevent current from being driven back into the source.
The MAX14575A/MAX14575AL/MAX14575B/MAX14575C are available in a small 2mm x 2mm, 8-pin TDFN package and operate over the -40°C to +85°C extended temperature range.
Each device in the family handles an overcurrent event differently depending on the option selected. The MAX14575A/MAX14575AL feature an autoretry mode; the MAX14575A has active-high EN polarity, while the MAX14575AL has active-low EN polarity. The MAX14575B has latch-off mode, and the MAX14575C features a continuous current-limit mode. Additional safety features include thermal-shutdown protection to prevent overheating and reverse-current blocking to prevent current from being driven back into the source.
The MAX14575A/MAX14575AL/MAX14575B/MAX14575C are available in a small 2mm x 2mm, 8-pin TDFN package and operate over the -40°C to +85°C extended temperature range.
Technical Docs
| Data Sheet | 250mA to 2.5A Adjustable Current-Limit Switches | Jan 09, 2015 |
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 .
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