Description

The 2592B-2BTQ is a hot swap controller used in systems requiring power distribution for Peripheral Component Interconnect Express (PCI Express) Hot-Plug compliance. It is suitable for powering two independent PCI Express slots and supports 12V, 3.3V, and 3.3VAUX supplies as defined in the PCI Express Specification v1.0a. This model provides comprehensive system protection and fault isolation, including programmable constant-current inrush limiting, voltage supervision, programmable current limit, and circuit breaker functions.

Specifications and features

• Dual-slot power controller for PCI Express Hot-Plug systems
• Supports two independent PCI Express slots
• SMBus interface for slot power control and status
• Voltage-tolerant I/O for compatibility with SMBus 2.0 systems
• 12V, 3.3V, and 3.3VAUX supplies supported per PCI Express Specification v1.0a
• Programmable inrush current limiting
• Electronic circuit breaker for each supply to each slot
• Two General Purpose Input pins suitable for interface to logic and switches

Application Scenarios

The MIC2592B hot swap controller is designed to be used in systems needing PCI Express Hot-Plug compliance. It is suitable for server applications, data centers, and other applications where PCI Express expansion cards need to be added or removed without system downtime.

Comparison

• Supports two independent PCI Express slots
• Provides comprehensive system protection and fault isolation
• Programmable inrush current limiting
• SMBus interface for slot power control and status
• Voltage-tolerant I/O for compatibility with SMBus 2.0 systems
• Electronic circuit breaker for each supply to each slot

• May not be suitable for applications outside of PCI Express Hot-Plug systems
• The 3.3VAUX rail is integrated with power MOSFETs, which may not be suitable for some applications