MAX5949AESA+
Active-48V HOT-SWAP CONTROLLERS WITH EXTERNAL RSENSE
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MAX5949AESA+
Active-48V HOT-SWAP CONTROLLERS WITH EXTERNAL RSENSE
Technical Specifications
Parameters and characteristics for this part
| Specification | MAX5949AESA+ |
|---|---|
| Applications | -48 V |
| Current - Supply | 700 µA |
| Features | Fault Timeout |
| Internal Switch(s) | False |
| Mounting Type | Surface Mount |
| Number of Channels [custom] | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 C |
| Package / Case | 0.154 in |
| Package / Case | 8-SOIC |
| Package / Case | 3.9 mm |
| Programmable Features | Circuit Breaker, Auto Retry, UVLO, OVP, Latched Fault |
| Supplier Device Package | 8-SOIC |
| Type | Hot Swap Controller |
| Voltage - Supply [Max] | -20 V |
| Voltage - Supply [Min] | -80 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | N/A | 0 | $ 7.73 | |
| 8000 | $ 7.73 | |||
| Tube | 1 | $ 4.93 | ||
| 10 | $ 4.46 | |||
| 25 | $ 4.25 | |||
| 100 | $ 3.69 | |||
| 300 | $ 3.65 | |||
Description
General part information
MAX5949 Series
The MAX5949A/MAX5949B are hot-swap controllers that allow a circuit card to be safely hot plugged into a live backplane. The MAX5949A/MAX5949B operate from -20V to -80V and are well-suited for -48V power systems. These devices are pin and function compatible with the LT4250 and pin compatible with the LT1640.The MAX5949A/MAX5949B provide a controlled turn-on to circuit cards preventing glitches on the power-supply rail and damage to board connectors and components. The MAX5949A/MAX5949B provide undervoltage, overvoltage, and overcurrent protection. These devices ensure the input voltage is stable and within tolerance before applying power to the load.Both the MAX5949A and MAX5949B protect a system against overcurrent and short-circuit conditions by turning off the external MOSFET in the event of a fault condition. The MAX5949A/MAX5949B also provide protection against input voltage steps. During an input voltage step, the MAX5949A/MAX5949B limit the current drawn by the load to a safe level without turning off power to the load.Both devices feature an open-drain power-good status output (PWRGD-bar for the MAX5949A or PWRGD for the MAX5949B) that can be used to enable downstream converters.The MAX5949A/MAX5949B are available in an 8-pin SO package. Both devices are specified for the extended -40°C to +85°C temperature range.Applications-48V Distributed Power SystemsBase-Station Line CardsCentral-Office Line CardsCentral-Office SwitchingNegative Power-Supply ControlsNetwork Routers and SwitchesServer Line CardsTelecom Line Cards
Documents
Technical documentation and resources
