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MAX14575C
250mA to 2.5A Adjustable Current-Limit Switches
Wide 250mA to 2.5A Current-Limit Range Has Considerable Versatility
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MyMaxim SubscriptionsProduct Details
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.
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
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) | $1.97 @1k |
View More
Technical Docs
| Data Sheet | 250mA to 2.5A Adjustable Current-Limit Switches | Jan 09, 2015 |
Click any title below to view the detail page where available.
Description
The MAX14575A–MAX14575C evaluation kits (EV kits) are fully assembled and tested circuit boards that demonstrate the functionality of the MAX14575A–MAX14575C adjustable current-limit switches in an 8-pin TDFN package. Each EV kit features jumpers for configuration and evaluation of all versions of the IC, which include autoretry, latchoff, and continuous current-limit versions. Input power to the EV kits is provided by a standard 5V USB bus or an external 5V power supply.
View Details Features
- Evaluate Preselected Threshold or Adjustable Threshold by Simple Jumper Configuration
- Easy Connections through Binding Posts
- Status LEDs Give Visual Indication of Power Present and Fault Conditions
- Proven PCB Layout
- Fully Assembled and Tested
Description
The MAX14575A–MAX14575C evaluation kits (EV kits) are fully assembled and tested circuit boards that demonstrate the functionality of the MAX14575A–MAX14575C adjustable current-limit switches in an 8-pin TDFN package. Each EV kit features jumpers for configuration and evaluation of all versions of the IC, which include autoretry, latchoff, and continuous current-limit versions. Input power to the EV kits is provided by a standard 5V USB bus or an external 5V power supply.
View Details Features
- Evaluate Preselected Threshold or Adjustable Threshold by Simple Jumper Configuration
- Easy Connections through Binding Posts
- Status LEDs Give Visual Indication of Power Present and Fault Conditions
- Proven PCB Layout
- Fully Assembled and Tested
Description
The MAX14575A–MAX14575C evaluation kits (EV kits) are fully assembled and tested circuit boards that demonstrate the functionality of the MAX14575A–MAX14575C adjustable current-limit switches in an 8-pin TDFN package. Each EV kit features jumpers for configuration and evaluation of all versions of the IC, which include autoretry, latchoff, and continuous current-limit versions. Input power to the EV kits is provided by a standard 5V USB bus or an external 5V power supply.
View Details Features
- Evaluate Preselected Threshold or Adjustable Threshold by Simple Jumper Configuration
- Easy Connections through Binding Posts
- Status LEDs Give Visual Indication of Power Present and Fault Conditions
- Proven PCB Layout
- Fully Assembled and Tested
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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) | $1.97 @1k |
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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