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MAX4995A, MAX4995AF, MAX4995AL
50mA to 600mA Programmable Current-Limit Switches
Industry's Most Accurate Current Limiter in Tiny 1.4mm x 1.8mm UTQFN
MyMaxim SubscriptionsProduct Details
Key Features
Applications/Uses
Parametric specs for Current Limit and USB Power Switches
| Current Limit (mA) (min) | 50 |
| Current Limit (mA) (max) | 600 |
| # Power Switches | 1 |
| USB | Yes |
| Fault Indicator | Yes |
| Current Limit Accuracy (%) | 10 |
| Current Limit Set By | Resistor |
| Lowest Adj. Setting (A) | 0.05 |
| RON (Ω) (typ) | 0.13 |
| VSUPPLY (V) (min) | 1.7 |
| VSUPPLY (V) (max) | 5.5 |
| Oper. Temp. (°C) | -40 to +125 |
| Package/Pins | SOT23/6 TDFN/8 ULTRA TQFN/10 |
| Budgetary Price (See Notes) | 1.6 |
View Less
Simplified Block Diagram
Technical Docs
| Data Sheet | 50mA to 600mA Programmable Current-Limit Switches | Nov 04, 2019 |
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) | 50 |
| Current Limit (mA) (max) | 600 |
| # Power Switches | 1 |
| USB | Yes |
| Fault Indicator | Yes |
| Current Limit Accuracy (%) | 10 |
| Current Limit Set By | Resistor |
| Lowest Adj. Setting (A) | 0.05 |
| RON (Ω) (typ) | 0.13 |
| VSUPPLY (V) (min) | 1.7 |
| VSUPPLY (V) (max) | 5.5 |
| Oper. Temp. (°C) | -40 to +125 |
| Package/Pins | SOT23/6 TDFN/8 ULTRA TQFN/10 |
| Budgetary Price (See Notes) | 1.6 |
Key Features
- 50mA to 600mA Programmable Current Limit
- ±10% Accurate Current Limit
- Overload Active-Low FLAG Threshold
- Low Dropout Voltage
- Short-Circuit Protection
- Thermal Shutdown
- Reverse-Current Protection
- 170µA (typ) Supply Current
- +1.7V to +5.5V Supply Voltage Range
- Tiny 10-Pin, 1.4mm x 1.8mm UTQFN Package
Applications/Uses
- Cell Phones
- GPS
- MP3 Players
- SDIO Ports
- USB Ports
Description
The MAX4995A/MAX4995AF/MAX4995AL/MAX4995B/MAX4995C programmable current-limit switches feature internal current limiting to prevent damage to host devices due to faulty load conditions. These analog switches feature a low 130mΩ (typ) on-resistance and operate from a +1.7V to +5.5V input voltage range. The current limit is adjustable from 50mA to 600mA, making these devices ideal for SDIO (secure digital input/output) and other load-switching applications.
Each device in the family handles an overcurrent event differently depending on the option selected. The MAX4995A/MAX4995AF/MAX4995AL go into an autoretry mode, the MAX4995B latches off the switch, and the MAX4995C places the device in a continuous current-limit mode. Additional safety features include thermal shutdown to prevent overheating and reverse-current blocking to prevent current from being driven back into the source.
The MAX4995A/MAX4995AF/MAX4995AL/MAX4995B/MAX4995C are available in a tiny 10-pin, 1.4mm x 1.8mm UTQFN, a 6-pin SOT23, or an 8-pin, 2mm x 2mm TDFN package and operate over the -40°C to +125°C extended temperature range.
Each device in the family handles an overcurrent event differently depending on the option selected. The MAX4995A/MAX4995AF/MAX4995AL go into an autoretry mode, the MAX4995B latches off the switch, and the MAX4995C places the device in a continuous current-limit mode. Additional safety features include thermal shutdown to prevent overheating and reverse-current blocking to prevent current from being driven back into the source.
The MAX4995A/MAX4995AF/MAX4995AL/MAX4995B/MAX4995C are available in a tiny 10-pin, 1.4mm x 1.8mm UTQFN, a 6-pin SOT23, or an 8-pin, 2mm x 2mm TDFN package and operate over the -40°C to +125°C extended temperature range.
Simplified Block Diagram
MAX4995A, MAX4995AF, MAX4995AL, MAX4995B, MAX4995C: Typical Operating Circuit
Technical Docs
| Data Sheet | 50mA to 600mA Programmable Current-Limit Switches | Nov 04, 2019 |
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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