2-1

HIP1011

PCI Hot Plug Controller

The HIP1011 is the PCI Hot Plug voltage bus control IC for

use in modern computer systems that facilitates hot plugging

of adapter cards into and out of an active or passive back

plane. Along with discrete power MOSFETs and a few

passive components, the HIP1011 creates a small and simple

yet complete power control solution. Four independent

supplies are controlled, +5V, +3.3, +12V, and -12V. The +12V

and -12V switches are integrated. For the +5V and +3.3V

supplies, overcurrent protection is provided by sensing the

voltage across external current-sense resistors. For the +12V

and -12V supplies, overcurrent protection is provided

internally. In addition, an on-chip reference is used to monitor

the +5V, +3.3V and +12V outputs for undervoltage conditions.

The PWRON input controls the state of the switches. During

an overcurrent condition on any output, or an undervoltage

condition on the +5V, +3.3V or +12V outputs, all MOSFETs

are immediately latched-off and a LOW (0V) is asserted on

the FLTN output. The FLTN latch is cleared when the PWRON

input is toggled low again. During initial power-up of the main

turning on the switches, and the latch is held in the Reset

User programmability of the overcurrent threshold and turn-on

slew rate is provided. A resistor connected to the OCSET pin

programs the overcurrent threshold. Capacitors connected to

the gate pins set the turn-on rate. Also, a capacitor may be

added to the FLTN pin to provide noise immunity.

Features

• Controls Distribution of Four Supplies: +5V, +3.3V, +12V,

and -12V

• Internal MOSFET Switches for +12V and -12V Outputs

• Microprocessor Interface for On/Off Control and Fault

Reporting

• Adjustable Overcurrent Protection for All Supplies

• Provides Fault Isolation

• Adjustable Turn-On Slew Rate

• Minimum Parts Count Solution

• No Charge Pump

Applications

• PCI Hot Plug

• CompactPCI

Pinout

HIP1011

(SOIC)

TOP VIEW

Typical Application

Ordering Information

PART NUMBER

TEMP.

PACKAGE

PKG.

NO.

HIP1011CB

0 to 70

16 Ld SOIC

M16.15

HIP1011CB-T

0 to 70

Tape and Reel

9

10

11

12

13

14

16

15

8

7

6

5

4

3

2

1

M12VIN

FLTN

3V5VG

12VIN

3VISEN

OCSET

3VS

M12VO

12VG

GND

12VO

M12VG

5VISEN

5VS

PWRON

12V,

M12VIN

FLTN

3V5VG

12VIN

3VISEN

3VS

OCSET

M12VO

12VG

GND

12VO

5VISEN

5VS

PWRON

M12VG

HIP1011

3.3V,

12V INPUT

5V,

-12V,

5V INPUT

-12V INPUT

POWER CONTROL INPUT

0.033

µF

0.033

µF

6.04k

Ω

FAULT OUTPUT (ACTIVE LOW)

(OPTIONAL)

5m

Ω, 1%

0.033

µF

NOTE:

1. All capacitors are

±10%.

1%

3.3V INPUT

5m

Ω, 1%

7.6A OUT

0.5A OUT

0.1A OUT

5A OUT

HUF761315K8

Data Sheet

August 1999

File Number

4311.7

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143