Analog Devices ADM1014
The ADM1014 operates from a +12V and +3.3V AUX supply and controls five independent supplies (+3.3V, +3.3VAUX, +5V, +12V and –12V) on two separate channels (A and B). The power switches for the +3.3VAUX, +12V and –12V supplies are integrated onto the chip, and internal current limiting is provided. For the +3.3V and +5V supplies, the device drives external, N-channel, power MOSFETs, and provides overcurrent protection by sensing the voltage drop across external current-sense resistors.
| Part No. |
ADM1014 |
| Datasheet |
ADM1014
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| Manufacturer |
 Analog Devices |
| Description |
Dual PCI Hot-PlugTM Controller |
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FEATURES
Controls Two PCI Slots Controls all Four PCI Supplies, +3.3V, +5V, +12V, -12V, plus 3.3V auxiliary supply Internal MOSFET Switches for +3.3V AUX, +12V and –12V outputs Adjustable Overcurrent Protection for all Outputs Undervoltage Protection on +3.3V, +5V, +12V and +3.3V AUX Supplies Open-Drain Fault Output with Adjustable Delay Logic Control of Outputs Adjustable Soft-start APPLICATIONS
Compact PCI PCI Hot-PlugTM GENERAL DESCRIPTION
The current limits for all 10 supplies are set by a single resistor to GND, connected to the OCSET pin. Undervoltage sensing is provided on the +3.3V, +5V, +12V and +3.3VAux supplies. Overcurrent sensing is provided on all supplies. In the event of an overcurrent or undervoltage fault on any of the outputs of either channel, all outputs on that channel will be turned off. Turn-on slew rate may be controlled using eight external capacitors, connected to the gate drives of all of the supplies. Logic control of the four main outputs is provided by the PWRONA and PWRONB pins.
