MP5926

MP5926

80V, Hot-Swap Controller with PMBus Interface

Parameters Description

Vin (min) (V)
8
Vin (max) (V)
80
Iq (typ) (µA)
3.5
Channels
1
Enable
Active High
Fault Flag
ALERT, PMBus Registers
Slew Rate Control
Yes
Grade
Catalog
Package (mm)
TSSOP-28

The MP5926 is a high-voltage hot-swap controller capable of operating with supplies ranging from 8V to 80V. The MP5926 provides a controlled soft start (SS) during hot insertion to ensure a controlled output voltage (V_OUT) ramp occurs.

The MP5926 provides over-current protection (OCP), over-power protection (OPP), over-temperature protection (OTP), and short-circuit protection (SCP). OCP supports two options: a circuit breaker and an active current-clamping mode. These values can be set via PMBus configuration.

The MP5926 supports discrete MOSFET hot-swap applications, providing a controlled SS turn-on. To further ensure that the external MOSFET's safe operating area (SOA) is controlled, the MP5926 implements a power limit (PL) and a configurable current limit during SS.

The MP5926 provides detailed fault handling and telemetry via the PMBus interface. The device's operation can be configured via the PMBus interface, providing more flexibility for device operation during SS and normal operation.

The MP5926 provides independent digital timers for OCP, OPP, retry delay, and insertion delay. This allows for each key parameter to be set to the optimal time operation without having to make a tradeoff to make one value work for three different modes.

The MP5926 is available in a TSSOP-28 (9.7mmx4.4mm) package.

Features & Benefits

8V to 80V Operating Input Voltage (V_IN) Range
Configurable Over-Current Protection (OCP)
Configurable Over-Power Protection (OPP)
Configurable Short-Circuit Protection (SCP)
Configurable Soft-Start (SS) Current Limit
Independent Digital Timers for OCP, Power Limit, Retry Delay, and Insertion Delay
Configurable Soft-Start Time
Supports External MOSFET
Power Good (PG) Monitor and Indicator
Built-In MOSFET Driver
Configurable Over-Temperature Protection (OTP)
Configurable V_IN Over-Voltage Protection (OVP) and Under-Voltage Lockout (UVLO)
Latch-Off or Retry Options
Circuit Breaker or Active Current-Clamping Options
12-Bit Analog-to-Digital Converter (ADC) to Monitor V_IN, Output Voltage (V_OUT), Output Current (I_OUT), Auxiliary Voltage (V_AUX), and Temperature via PMBus
Built-In Health Reporting
Available in a TSSOP-28 (9.7mmx4.4mm) Package