MAX5933A

正高电压热插拔控制器 Positive High-Voltage, Hot-Swap Controllers

Description

The -MAX5933F/MAX5947A/B/C fully integrated hot-swap controllers for +9V to +80V positive supply rails MAX5947A/B/C, allow for the safe insertion and removal of circuit cards into live backplanes without causing glitches on the backplane power-supply rail. The MAX5947B is pin- and function-compatible with the LT1641-2. The other devices offer added features such as a choice of active-high or active-low power-good outputs PWRGD/PWRGD-bar, latched/autoretry fault management, and autoretry duty-cycle options of 3.75% or 0.94% see the _Selector Guide_.

The MAX5933A-MAX5933F are available with a default undervoltage lockout threshold of +31V and operate over a supply voltage range of +33V to +80V. The MAX5947A/B/C are available with a default undervoltage of +8.3V. All devices feature a programmable analog foldback current limit. If the device remains in current limit for more than a programmable time, the external n-channel MOSFET is either latched off MAX5933A/MAX5933C/MAX5947A or is set to automatically restart after a timeout delay MAX5933B/MAX5933D/MAX5933E/MAX5933F/MAX5947B/MAX5947C.

The MAX5933_ and MAX5947_ operate in the extended temperature range of -40°C to +85°C. These devices are available in an 8-pin SO package.