| Allicdata Part #: | MAX5947BESA+T-ND |
| Manufacturer Part#: |
MAX5947BESA+T |
| Price: | $ 1.80 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Maxim Integrated |
| Short Description: | IC CNTRLR HOT SWAP 8-SOIC |
| More Detail: | Hot Swap Controller 1 Channel General Purpose 8-SO... |
| DataSheet: | MAX5947BESA+T Datasheet/PDF |
| Quantity: | 1000 |
| Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
| Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
| 1 +: | $ 1.80000 |
| 10 +: | $ 1.74600 |
| 100 +: | $ 1.71000 |
| 1000 +: | $ 1.67400 |
| 10000 +: | $ 1.62000 |
| Programmable Features: | Current Limit, Fault Timeout, OVP, UVLO |
| Base Part Number: | MAX5947 |
| Feature Pins: | FB, ON, (PWRGD, /PWRGD), TIMER |
| Supplier Device Package: | 8-SOIC |
| Package / Case: | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type: | Surface Mount |
| Current - Supply: | 1.4mA |
| Operating Temperature: | -40°C ~ 85°C |
| Current - Output (Max): | -- |
| Voltage - Supply: | 9 V ~ 80 V |
| Series: | -- |
| Features: | Auto Retry, Thermal Limit |
| Applications: | General Purpose |
| Internal Switch(s): | No |
| Number of Channels: | 1 |
| Type: | Hot Swap Controller |
| Moisture Sensitivity Level (MSL): | -- |
| Part Status: | Active |
| Lead Free Status / RoHS Status: | -- |
| Packaging: | Tape & Reel (TR) |
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MAX5947BESA+T Application Field and Working Principle
MAX5947BESA+T belongs to PMIC – Hot Swap Controllers family. It is a multi-channel Hot Swap controllers with over temperature and over current protection. Each Hot Swap channel has excellent inrush-current control capability and an adjustable threshold over-current protection. This controller also features an autonomous over-temperature protection circuit that requires no comparison inputs.
Features
- Over-Temperature Protection – No Comparison Inputs Required
- Up to 12 Hot Swap Channels
- Pin-selectable Trip Current from 2A to 6A (MAX5947A+T) or 7A to 16A (MAX5947B+T)
- Pin-selectable Slew-Rate Control to Limit Inrush Current
- 2 Percent Current Limit Accuracy
- Guaranteed 500-μA (max) Supply Current at 3.6V
- Voltage Accuracy of 0.5V
- Thermal Warning Status Output
- CAN FD Transceiver Interface
- Undervoltage Warning
- Undervoltage/Overvoltage Lockout
Application Field
The MAX5947BESA+T is ideal for general-purpose Hot Swap applications in avionic, telecom, industrial, and automotive systems, including test fixtures and automated HW applications. With its configurable slew-rate control and over-current protection thresholds up to 16A, the MAX5947BESA+T accommodates a wide variety of is drivenboards.
Working Principle
The MAX5947BESA+T uses an external power FET and an external sense resistor or sense input voltage to control current. It is designed to accommodate an input voltage range from 1.5V to 27V. The trip current is adjustable through the Hot Swap selector pins and can be set to 2A to 6A (MAX5947A+T) or 7A to 16A (MAX5947B+T). These pins also set the slew rate on the Hot Swap control. The MAX5947BESA+T performs over-temperature protection without external temperature sensors.
Over-temperature protection activates when the power FET temperature exceeds the programmed protection point. The MAX5947BESA+T also features a voltage comparison circuit to detect an undervoltage or overvoltage condition. An overvoltage fault occurs when the Hot Swap current is below the programmed threshold and the Hot Swap input voltage exceeds the programmed threshold. An undervoltage fault occurs when the Hot Swap current exceeds the programmed threshold and the Hot Swap input voltage is below the programmed threshold. An undervoltage warning is displayed when the power FET stays in the high state for more than 100µs with the input voltage below the undervoltage warning level.
The MAX5947BESA+T has an adjustable timer to provide variable delay. This delay can be used to limit inrush current. A thermal warning output is provided when the power FET temperature exceeds the over-temperature limit.
Conclusion
The MAX5947BESA+T is a multi-channel Hot Swap controller with over-temperature and over-current protection. It is suitable for a wide range of avionic, telecom, industrial, and automotive applications. With its adjustable trip current, variable delay timer, and autonomous over-temperature protection, this Hot Swap Controller provides excellent performance and reliability.
The specific data is subject to PDF, and the above content is for reference
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MAX5947BESA+T Datasheet/PDF