1
HIP1011A
PCI Hot Plug Controller
The HIP1011A is the second PCI Hot Plug Voltage bus
control IC from Intersil. A drop-in alternative to the widely
used HIP1011, the HIP1011A has the same form, fit and
function but additionally features an adjustable latch-off time
of the MOSFET switches and fault reporting.
Like the HIP1011, the HIP1011A creates a small and simple
yet complete power control solution with discrete power
MOSFETs and a few passive components. 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 (OC) protection is
provided by sensing the voltage across external current-
sense resistors. For the +12V and -12V supplies OC
protection is provided internally. In addition, an on-chip
reference is used to monitor the +5V, +3.3V and +12V
outputs for undervoltage (UV) conditions. The PWRON input
controls the state of the switches. During an OC condition on
any output, or a UV condition on the +5V, +3.3V or +12V
outputs, a LOW (0V) is asserted on the FLTN output and all
MOSFETs are latched-off. The time to FLTN signal going
LOW and MOSFET latch-off is determined by a single
capacitor from the FLTN pin to ground. This added feature
allows the system OS to complete housekeeping activities in
preparation for an unplanned shut down of the affected card.
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, fault
reporting response time, latch-off response time and turn-on
slew rate is provided. A resistor connected to the OCSET pin
programs the OC threshold. A capacitor may be added to
the FLTN pin to adjust both the delay time to reporting a fault
and the latch-off of the supplies after an OC or UV event.
Capacitors connected to the gate pins set the turn-on rate. In
addition the HIP1011A has also been enhanced to tolerate
spurious system noise.
Features
Adjustable Delay Time for Turn-Off and Fault Reporting
Controls All PCI Supplies: +5V, +3.3V, +12V, -12V
Internal MOSFET Switches for +12V and -12V Outputs
P 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
HIP1011A
(SOIC)
TOP VIEW
Ordering Information
PART NUMBER
TEMP. RANGE
(
o
C)
PACKAGE
PKG.
NO.
HIP1011ACB
0 to 70
16 Ld SOIC
M16.15
HIP1011ACB-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
V
CC
12VIN
3VISEN
OCSET
3VS
M12VO
12VG
GND
12VO
M12VG
5VISEN
5VS
PWRON
Data Sheet
March 2000
File Number
4631.3
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Copyright
Intersil Corporation 2000
2
Typical Application
Simplified Schematic
12V,
M12VIN
FLTN
3V5VG
V
CC
12VIN
3VISEN
3VS
OCSET
M12VO
12VG
GND
12VO
5VISEN
5VS
PWRON
M12VG
HIP1011A
3.3V,
12V INPUT
5V,
-12V,
5V INPUT
-12V INPUT
POWER CONTROL INPUT
0.033
F
0.033
F
6.04k
FAULT OUTPUT (ACTIVE LOW)
(OPTIONAL)
5m
, 1%
0.033
F
1%
3.3V INPUT
5m
, 1%
7.6A OUT
0.5A OUT
0.1A OUT
5A OUT
HUF761315K8
NOTE: All capacitors are
10%.
FLTN
5VS
3V5VG
5VISEN
3VS
OCSET
3VISEN
12VIN
12VG
12VO
M12VIN
M12VG
M12VO
PWRON
GND
12VIN
POWER-ON
RESET
V
CC
M12VIN
V
CC
V
CC
100
A
0.3
0.7
FAULT LATCH
V
OCSET
5V ZENER
REFERENCE
V
CC
5VREF
5VREF
V
OCSET
/17
V
OCSET
/0.8
4.6V
INHIBIT
V
CC
SET (LOW = FAULT)
RESET
V
CC
LOW = FAULT
LOW WHEN V
CC
< 10V
HIGH = SWITCHES ON
HIGH = FAULT
+
-
COMP
-
+
COMP
-
+
V
OCSET
/13.3
+
-
COMP
+
2.9V
INHIBIT
COMP
+
-
10.8V
INHIBIT
COMP
+
-
COMP
-
+
+
-
V
CC
V
CC
V
OCSET
/3.3
COMP
-
+
+
-
-
HIP1011A
3
Pin Descriptions
PIN NO.
DESIGNATOR
FUNCTION
DESCRIPTION
1
M12VIN
-12V Input
-12V Supply Input. Also provides power to the -12V overcurrent circuitry.
2
FLTN
Fault Output
5V CMOS Fault Output; LOW = FAULT. A capacitor may be placed from this pin to ground to
provide delay time to fault notification and power supply latch-off.
3
3V5VG
3.3V/5V Gate Output
Drive the gates of the 3.3V and 5V MOSFETs. Connect a capacitor to ground to set the start-
up ramp. During turn on, this capacitor is charged with a 25
A current source.
4
VCC
12V V
CC
Input
Connect to unswitched 12V supply.
5
12VIN
12V Input
Switched 12V supply input.
6
3VISEN
3.3V Current Sense
Connect to the load side of the current sense resistor in series with source of external 3.3V
MOSFET.
7
3VS
3.3V Source
Connect to source of 3.3V MOSFET. This connection along with pin 6 (3VISEN) senses the
voltage drop across the sense resistor.
8
OCSET
Overcurrent Set
Connect a resistor from this pin to ground to set the overcurrent trip point of all four switches.
All four over current trips can be programmed by changing the value of this resistor. The
default (6.04k
,
1%) is compatible with the maximum allowable currents as outlined in the
PCI specification.
9
PWRON
Power On Control
Controls all four switches. High to turn switches ON, Low to turn them OFF.
10
5VS
5V Source
Connect to source of 5V MOSFET switch. This connection along with pin 11 (5VISEN)
senses the voltage drop across the sense resistor.
11
5VISEN
5V Current Sense
Connect to the load side of the current sense resistor in series with source of external 5V
MOSFET.
12
12VO
Switched 12V Output
Switched 12V output.
13
GND
Ground
Connect to common of power supplies.
14
12VG
Gate of Internal PMOS Connect a capacitor between 12VG and 12VO to set the start up ramp for the +12V supply.
This capacitor is charged with a 25
A current source during start-up. The UV circuitry is
enabled after the voltage on 12VG is less than 400mV. Therefore, if the capacitor on the pin
3 (3V5VG) is more than 25% larger than the capacitor on pin 14 (12VG) a false UV may be
detected during start up.
15
M12VG
Gate of Internal NMOS Connect a capacitor between M12VG and M12VO to set the start up ramp for the M12V
supply. This capacitor is charged with 25
A during start up.
16
M12VO
Switched -12V
Output
Switched 12V Output.
HIP1011A
4
Absolute Maximum Ratings
Thermal Information
V
CC
, 12VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +14.0V
12VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to V
12VIN
+0.5V
12VO, 12VG, 3V5VG . . . . . . . . . . . . . . . . . . . . . -0.5V to V
CC
+0.5V
M12VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -15.0V to +0.5V
M12VO, M12VG . . . . . . . . . . . . . . . . . . . . . . V
M12VIN
-0.5V to +0.5V
3VISEN, 5VISEN . . . . . . . . . . . -0.5V to the Lesser of V
CC
or +7.0V
Voltage, Any Other Pin. . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +7.0V
12VO Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3A
M12VO Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8A
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4KeV (HBM)
Operating Conditions
VCC Supply Voltage Range. . . . . . . . . . . . . . . . . . +10.8V to +13.2V
12V, 5V and 3.3V Input Supply Tolerances
. . . . . . . . . . . . . . . .
10%
12VO Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +0.5A
M12VO Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +0.1A
Temperature Range (T
A
) . . . . . . . . . . . . . . . . . . . . . . . . 0
o
C to 70
o
C
Thermal Resistance (Typical, Note 1)
JA
(
o
C/W)
SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
105
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . .125
o
C
Maximum Storage Temperature Range . . . . . . . . . . -65
o
C to 150
o
C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . .300
o
C
(SOIC - Lead Tips Only)
Die Characteristics
Number of Transistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1.
JA
is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief 379 for details.
2. All voltages are relative to GND, unless otherwise specified.
Electrical Specifications
Nominal 5.0V and 3.3V Input Supply Voltages,
V
CC
= 12VIN = 12V, M12VIN = -12V, T
A
= T
J
= 0 to 70
o
C, Unless Otherwise Specified
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
5V/3.3V SUPPLY CONTROL
5V Overcurrent Threshold
I
OC5V
See Typical Application Diagram
-
7.1
-
A
5V Overcurrent Threshold Voltage
V
OC5V_1
V
OCSET
= 0.6V
30
36
42
mV
5V Overcurrent Threshold Voltage
V
OC5V_2
V
OCSET
= 1.2V
66
72
79
mV
5V Undervoltage Trip Threshold
V
5VUV
4.42
4.65
4.75
V
5V Undervoltage Fault Response Time
t
5VUV
-
150
350
ns
5V Turn-On Time
(PWRON High to 5VOUT = 4.75V)
t
ON5V
C
3V5VG
= 0.022
F, C
5VOUT
= 2000
F,
R
L
= 1
-
6.5
-
ms
5VS Input Bias Current
IB
5VS
PWRON = High
-40
-26
-20
A
5VISEN Input Bias Current
IB
5VISEN
PWRON = High
-160
-140
-110
A
3V Overcurrent Threshold
I
OC3V
See Typical Application Diagram
-
9.0
-
A
3V Overcurrent Threshold Voltage
V
OC3V_1
V
OCSET
= 0.6V
42
49
56
mV
3V Overcurrent Threshold Voltage
V
OC3V_2
V
OCSET
= 1.2V
88
95
102
mV
3V Undervoltage Trip Threshold
V
3VUV
2.74
2.86
2.97
V
3V Undervoltage Fault Response Time
t
3VUV
-
150
350
ns
3V Turn-On Time
(PWRON High to 3VOUT = 3.00V)
t
ON3V
C
3V5VG
= 0.022
F, C
3VOUT
= 2000
F,
R
L
= 0.43
-
6.5
-
ms
3VS Input Bias Current
IB
3VS
PWRON = High
-40
-26
-20
A
3VISEN Input Bias Current
IB
3VISEN
PWRON = High
-160
-140
-110
A
3V5VG Vout Low
Vout_lo_35VG
PWRON = Low, FLTN = Low
-
0.1
0.4
V
3V5VG Vout High
Vout_hi_35VG
PWRON = High, FLTN = High
10.5
11.1
-
V
Gate Output Charge Current
IC
3V5VG
PWRON = High, V
3V5VG
= 2V
22.5
25.0
27.5
A
HIP1011A
5
Gate Turn-On Time
(PWRON High to 3V5VG = 11V)
t
ON3V5V
C
3V5VG
= 0.1
F
-
280
500
s
Gate Turn-Off Time
t
OFF3V5V
C
3V5VG
= 0.1
F, 3V5VG from 9.5V to 1V
-
13
17
s
Gate Turn-Off Time
C
3V5VG
= 0.022
F, 3V5VG Falling 90% to
10%
-
2
-
s
+12V SUPPLY CONTROL
On Resistance of Internal PMOS
r
DS(ON)12
PWRON = High, I
D
= 0.5A,
T
A
= T
J
= 25
o
C
0.18
0.3
0.35
Overcurrent Threshold
I
OC12V_1
V
OCSET
= 0.6V
0.6
0.75
0.9
A
Overcurrent Threshold
I
OC12V_2
V
OCSET
= 1.2V
1.25
1.50
1.8
A
12V Undervoltage Trip Threshold
V
12VUV
10.5
10.8
11.15
V
Undervoltage Fault Response Time
t
12VUV
-
150
-
ns
Gate Charge Current
IC
12VG
PWRON = High, V
12VG
= 3V
23.5
25.0
28.5
A
Turn-On Time
(PWRON High to 12VG = 1V)
t
ON12V
C
12VG
= 0.022
F
-
16
20
ms
Turn-Off Time
t
OFF12V
C
12VG
= 0.1
F, 12VG
-
9
12
s
Turn-Off Time
C
12VG
= 0.022
F, 12VG Rising
10% - 90%
-
3
-
s
-12V SUPPLY CONTROL
On Resistance of Internal NMOS
r
DS(ON)M12
PWRON = High, I
D
= 0.1A,
T
A
= T
J
= 25
o
C
0.5
0.7
0.9
Overcurrent Threshold
I
OC12V_1
V
OCSET
= 0.6V
0.15
0.18
0.25
A
Overcurrent Threshold
I
OC12V_2
V
OCSET
= 1.2V
0.30
0.37
0.50
A
Gate Output Charge Current
IC
M12VG
PWRON = High, V
3VG
= -4V
22.5
25
27.5
A
Turn-On Time
(PWRON High to M12VG = -1V)
t
ONM12V
C
M12VG
= 0.022
F
-
160
300
s
Turn-On Time
(PWRON High to M12VO = -10.8V)
t
ONM12V
C
M12VG
= 0.022
F, C
M12VO
= 50
F,
R
L
= 120
-
16
-
ms
Turn-Off Time
t
OFFM12V
C
M12VG
= 0.1
F, M12VG
-
18
23
s
Turn-Off Time
C
M12VG
= 0.022
F, M12VG Falling 90%
to 10%
-
3
-
s
M12VIN Input Bias Current
IB
M12VIN
PWRON = High
-
2
2.6
mA
CONTROL I/O PINS
Supply Current
I
VCC
4
5
5.8
mA
OCSET Current
I
OCSET
95
100
105
A
Overcurrent to Fault Response Time
t
OC
FLTN Cap = 100pF
-
500
960
ns
Overcurrent to Fault Response Time
FLTN Cap = 1000pF
-
2200
-
ns
Overcurrent to Fault Response Time
FLTN Cap = 10
F
-
30
-
s
PWRON Threshold Voltage
V
THPWRON
0.8
1.6
2.1
V
FLTN Output Low Voltage
V
FLTN,OL
I
FLTN
= 2mA
-
0.6
0.9
V
FLTN Output High Voltage
V
FLTN,OH
I
FLTN
= 0 to -4mA
3.9
4.3
4.9
V
FLTN Output Latch Threshold
V
FLTN,TH
1.8
2.3
3
V
12V Power On Reset Threshold
V
POR,TH
V
CC
Voltage Falling
9.4
10
10.6
V
Electrical Specifications
Nominal 5.0V and 3.3V Input Supply Voltages,
V
CC
= 12VIN = 12V, M12VIN = -12V, T
A
= T
J
= 0 to 70
o
C, Unless Otherwise Specified (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
HIP1011A
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