
1
File Number
4725.1
HIP1011D
Dual PCI Hot Plug Controller
The HIP1011D is the first IC available for independent
control of two PCI Hot Plug slots. The HIP1011D has all the
features and functionality of two single PCI Hot Plug slot
controllers such as the HIP1011A but in the same foot print
area.
The HIP1011D is designed to be physically placed in close
proximity to two adjacent PCI slots servicing each
independently but reducing layout complexity and placement
costs in assembly. It creates two independent power control
solutions with discrete power MOSFETs and a few passive
components. The four supplies +5V, +3.3V, +12V, and -12V
for each slot are independently controlled. There are four
integrated current sensing switches for the +12V and -12V
and for the +5V and +3.3V supplies overcurrent protection is
provided by sensing the voltage across external current-
sense resistors. In addition, on-chip references are used to
monitor the +5V, +3.3V and +12V outputs for undervoltage
conditions. The two PWRON inputs control the state of the
switches, one each for slot A and slot B outputs. During an
overcurrent condition on any output, or an undervoltage
condition on the +5V, +3.3V or +12V outputs, a LOW (0V) is
asserted on the associated FLTN output and all associated
switches are latched-off. The outputs servicing the adjacent
slot are unaffected.
The time to FLTN signal going LOW and MOSFET latch off
is user determined by a single capacitor from each FLTN pin
to ground. This added feature enables the HIP1011D to
ignore system noise transients. The FLTN latch is cleared
when the PWRON input is toggled low again. During initial
power-up of the main VCC supply (+12V), the PWRON input
is inhibited from turning on the switches, and the latch is held
in the Reset state until the VCC input is greater than 10V.
User programmability of the overcurrent threshold and turn-
on slew rate is provided. A resistor connected to the OCSET
pin programs the overcurrent threshold for both slots.
Capacitors connected to the gate pins set the turn-on rate.
Features
Independent Power Control of 2 PCI Slots
Turn-Off Delay Time Adjustability
Internal MOSFET Switches for +12V and -12V Outputs
μ
P Interface for On/Off Control and Fault Reporting
Adjustable Overcurrent Protection for All Eight Supplies
Provides Fault Isolation
Adjustable Turn-On Slew Rate
Minimum Parts Count Solution
No Charge Pump
100ns Response Time to Over Current
Applications
PCI Hot-Plug
Pinout
HIP1011D
(SSOP)
TOP VIEW
Ordering Information
PART NUMBER
TEMP.RANGE
(
o
C)
PACKAGE
PKG.
NO.
HIP1011DCA
0 to 70
28 Ld SSOP
M28.15
HIP1011DCA-T
0 to 70
Tape and Reel
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
M12VO_1
M12VG_1
12VIN_1
M12VO_2
M12VG_2
12VG_2
12VO_2
M12VIN_2
12VO_1
12VIN_2
12VG_1
M12VIN_1
3VISEN_2
3VS_2
3V5VG_2
PWRON_2
5VISEN_2
FLTN_2
VSS
OCSET
PWRON_1
FLTN_1
5VS_1
5VISEN_1
3VISEN_1
3VS_1
3V5VG_1
5VS_2
Data Sheet
November 1999
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Copyright
Intersil Corporation 1999