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參數(shù)資料
| 型號： | HIP1011D |
| 廠商： | Intersil Corporation |
| 英文描述： | Dual Slot PCI Hot Plug Controller(雙電源分配控制器) |
| 中文描述： | 雙插槽的PCI熱插拔控制器（雙電源分配控制器） |
| 文件頁數(shù)： | 7/15頁 |
| 文件大?。?/td> | 141K |
| 代理商： | HIP1011D |
7
Introduction
The HIP1011D and HIP1011E are the first dual PCI slot IC
devices designed to provide control and protection of the
four PCI power supplies independently to two PCI slots. Like
the widely used HIP1011 this device complies with the PCI
Hot Plug specification facilitating the service, upgrading or
expansion of PCI based servers without the need to power
down the server. The HIP1011D protects against over
current (OC) for the -12V, +12V, +3.3V, +5V and under
voltage (UV) conditions for the +12V, +3.3V, +5V supplies.
The HIP1011E only responds to OC conditions.
Figure 1 illustrates the typical implementation of the
HIP1011D/E. Additional components for optimizing
performance for particular applications, or desired features
may be necessary.
Key Feature Description and Operation
The HIP1011D/E, four power MOSFETs and a few passive
components as configured in Figure 1, create a small yet
complete power control solution for two PCI slots. It provides an
OC trip level greater than the maximum PCI specified current
for each supply to each slot. OC monitoring and protection for
the 3.3V and 5V supplies is provided by sensing the voltage
across external current-sense resistors. For the +12V and -12V
inputs, OC protection is provided internally. On-chip references
in the HIP1011D are used to monitor the +5V, +3.3V and +12V
outputs for UV conditions. During an OC condition on any
output, or an UV condition on the +5V, +3.3V or +12V outputs
(HIP1011D only), all slot specific MOSFETs are immediately
latched-off and a LOW (0V) is presented to the appropriate
FLTN output. During initial power-up of the main V
CC
supply
(+12V), the PWRON inputs are inhibited from turning on the
switches, and the latch is held in the reset state until the V
CC
input is greater than 10V. After a fault has been asserted and
FLTN is latched low cycling PWRON low then high will clear the
FLTN latch. User programing of the OC thresholds for both
controlled slots is provided by a single resistor connected to the
OCSET pin along with R
SENSE
. In addition delay time to latch
off after a fault condition can be increased by increasing the
FLTN to ground capacitance and the turn-on ramp rate can be
increased by increasing the gate pin capacitance.
Customizing Circuit Performance
Over Current (OC) Set Functionality and Resistor
Choice
The HIP1011D/E allows easy custom programming of the
OC levels of all 4 supplies simultaneously for both PCI slots
by simply changing the resistor value between OCSET, (pin
10), and ground. The R
OCSET
value and the OCSET 100
μ
A
current source sets a voltage that is used in each of eight
comparators, (one for each supply for both slots). The
voltages developed across the 3.3V and 5V sense resistors
are applied to the inputs of their respective comparators. The
+12V and -12V currents are sensed internally with pilot
devices. Once any comparator trips, that output is fed
through logic circuits resulting in the appropriate FLTN, (pin
4 or pin 11), going low, indicating a fault condition on that
particular slot. Because of the internal current monitoring of
the +12V and -12V switches, their programming flexibility is
limited to R
OCSET
changes. The 3.3V and 5V over current
trip points depend on both R
OCSET
and the value chosen for
each sense resistor.
See TABLE 1 to determine OC protection levels relative to
choice of R
OCSET
and R
SENSE
values.
Over current design guidelines and recommendations are as
follows:
1. For PCI applications, set R
OCSET
to 6.04k
, and use
5m
1% sense resistors (see Figure 24).
2. For non PCI specified applications, the following
precautions and limitations apply:
A.
Do not
exceed the maximum power of the integrated
NMOS and PMOS. High power dissipation must be
coupled with effective thermal management. The
integrated PMOS has an r
DS(ON)
of 0.3
. Thus, with 1A
of steady load current on each of the PMOS devices the
power dissipation is 0.6W. The thermal impedance of the
package is 95 degrees Celsius per watt, limiting the
average DC current on the 12V supply to about 1A on
each slot and imposing an upper limit on the R
OCSET
resistor.
Do not
use an R
OCSET
resistor greater than
15k
.
The average current on the -12V supply should not
exceed 0.7A. Since the thermal restrictions on the +12V
supply are more severe, the +12V supply restricts the use
of the HIP1011 to applications where the
±
12V supplies
draw relatively little current. Since both supplies only have
one degree of freedom, the value of R
OCSET
, the flexibility
of programming is quite limited. For applications where
more power is required on the +12V supply, contact your
local Intersil sales representative for information on other
Hot Plug solutions.
B.
Do not
try to sense voltages across the external sense
resistors that are less than 33mV. Spurious faults due to
noise and comparator input sensitivity may result. The
minimum recommended R
OCSET
value is 6k
. This will
set the nominal OC voltage thresholds at 52mV and
42mV for the 3.3V and 5V comparators respectively. This
isthevoltagelevelatwhichtheOCfault(I
OUT
xR
SENSE
)
will occur.
C. Minimize V
RSENSE
so as to not significantly reduce the
voltage delivered to the adapter card. Remember PCB
trace and connector distribution voltage losses also need
to be considered. Make sure that the R
SENSE
resistor
can adequately handle the dissipated power. For best
resultsusea1%precisionresistorwithalowtemperature
coefficient.
D. Minimize external FET r
DS(ON)
. Low r
DS(ON)
or multiple
MOSFETs in parallel are recommended. See Intersil for
a complete selection of MOSFET offerings.
HIP1011D, HIP1011E
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HIP1011E | Dual Slot PCI Hot Plug Controller(雙電源分配控制器) |
| HIP1020 | Single, Double or Triple-Output Hot Plug Controller(單/雙或三輸出帶電插拔控制器) |
| HIP1031 | 20000 SYSTEM GATE LOGIC CELL ARRAY - NOT RECOMMENDED for NEW DESIGN |
| HIP1031AS | 20000 SYSTEM GATE LOGIC CELL ARRAY - NOT RECOMMENDED for NEW DESIGN |
| HIP1090 | Protected High Side Power Switch with Transient Suppression |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HIP1011D_04 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual Slot PCI Hot Plug Controllers |
| HIP1011DCA | 功能描述:IC CTRLR HOTPLUG PCI DUAL 28SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:100 系列:- 類型:熱插拔開關(guān) 應(yīng)用:通用 內(nèi)部開關(guān):是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN-EP（3x3） 包裝:管件 |
| HIP1011DCA-T | 功能描述:IC CTRLR HOTPLUG PCI DUAL 28SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:100 系列:- 類型:熱插拔開關(guān) 應(yīng)用:通用 內(nèi)部開關(guān):是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN-EP（3x3） 包裝:管件 |
| HIP1011DCAZA | 功能描述:熱插拔功率分布 W/ANNEAL DL VER OF HIP1011 2 8LD SSOP RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| HIP1011DCAZA-T | 功能描述:熱插拔功率分布 W/ANNEAL DL PCI HOT PLUG PWR CNTRLR RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
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