MIC2342
The MIC2342 is a dual-slot power controller supporting the power distribution requirements for Peripheral Component Interconnect Express (PCI Express®) Hot-Plug compliant systems. The MIC2342 provides complete power control support for two PCI Express slots, including the 3.3VAUX defined by the PCI Express standards. Support for the 12V, 3.3V, and 3.3VAUX supplies includes programmable gate voltage slew-rate control, voltage supervision, programmable current limit, and circuit breaker functions. These features provide comprehensive system protection and fault isolation. Additionally, in the event of an overcurrent fault on 3.3VAUX that "trips" the circuit breaker to cause the 3.3VAUX output to shut down, the MAIN outputs (3.3V and 12V) for the affected 3.3VAUX slot, A or B, will also be shut down. The MIC2341 controller provides truly independent output operation for MAIN and AUX.
Features- Supports two independent PCI Express slots
- MAIN & AUX outputs are inter-dependent during AUX overcurrent conditions
- 12V, 3.3V, and 3.3VAUX supplies supported per PCI Express Specification v1.0a, v.2.0
- Integrated Power MOSFETS for 3.3VAUX rails
- Standby Operation for Wake-on-LAN applications with low backfeed on Main +12V and +3.3V rails
- Electronic circuit breakers for each supply per slot
Programmable gate voltage slew-rate control
Active current regulation controls inrush current
- Programmable gate voltage slew-rate control
- Active current regulation controls inrush current
- High accuracy Primary and Secondary Circuit Breaker Current-limit Thresholds
- Dual-level, dual-speed fault detection for fast response without nuisance tripping
- User-programmable Primary Overcurrent Detector
- /PWRGD and Delayed /PWRGD (164 ms) Signal Outputs per slot
- Separate /FAULT output signals for MAIN and AUX rails for each slot
- Global Systems Power-is-Good Output
- Both slots thermally isolated
- Internally Debounced Plug-in Card Retention Switch Inputs per slot.
| Parameter|
Parameter Name
Value
| Value | |
Product type
Compact-PCI/PCI-X/PCI-Express
|
Compact-PCI/PCI-X/PCI-Express
| |
Latch off
Yes
|
Yes
| |
FAULT
4
|
4
| |
# of PWRGD
4
|
4
| |
Θja (C/W)
76.8
|
76.8
|
|
Documents
Similar Devices
