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参数资料
| 型号： | HIP1011BCB |
| 厂商： | INTERSIL CORP |
| 元件分类： | 电源管理 |
| 英文描述： | PCI Hot Plug Controller |
| 中文描述： | 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封装： | PLASTIC, MS-012-AC, SOIC-16 |
| 文件页数： | 8/9页 |
| 文件大小： | 93K |
| 代理商： | HIP1011BCB |
8
HIP1011 Split Load Application
All of the members of the HIP1011 family, including the
HIP1011B, can be used in an application where two
electrically isolated loads are to be powered from a common
bus. This may occur in a system that has a power
management feature controlled by a system controller IC
invoking a sleep or standby state. Thus one load can be shut
down while maintaining power to a second isolated circuit.
The circuit shown in Figure 7 shows the external FETs, and
sense resistor configuration for the 3.3V and/or 5V load that
has such a requirement. The HIP1011 is represented by pin
names in rectangles. Q1 and Q2 are the N-Channel FETs for
each load on this rail, these are sized appropriately for each
load. R1 and R2 are needed to pull down the supply slot pins
or load when slot power is disabled as the load discharge
FETs (Q3) on the VISEN pins are no longer attached to the
load. When power is turned off to the load these (~100
)
FETs turn on, thus some low current, (10mA) continues to
be drawn from the supply in addition to the sleep load
current resulting in a 4
o
C die temperature rise.
HIP1011 High Power Circuit
Instances occur when a noncompliant card is designed for
use in a PCI environment. Although the HIP1011 family has
proven to be very design flexible, controlling high power
+12V supplies requires special attention. This is due to
thermal considerations that limit the integrated power
device on the +12V supply to about 1.5A. To address this
an external add on circuit as shown in Figure 8 enables the
designer to add the OC monitoring and control of a high
power +12V supply in addition to the 3 other power
supplies. The HIP1011 is represented by pin names in
rectangles.
This circuit primarily requires that an external P-Channel
MOSFET be connected in parallel to the internal HIP1011
PMOS device and that the discrete device have a much
lower r
DS(ON)
value than the internal PMOS device in order
to carry the majority of the current load. By monitoring the
voltage across the sense resistor carrying the combined
load current of both the internal and external FETs and by
using a comparator with a common mode input voltage
range to the positive rail and a low input voltage threshold
offset to reduce distribution losses, a high precision OC
detector can be designed to control a much higher current
load than can be tolerated by the HIP1011.
An alternative circuit for moderate current levels where both
accuracy and cost are lowered can be accomplished by a
single external P-Channel MOSFET in parallel with the
internal P-Channel MOSFET. For example, if 2X the OC
level is desired a 0.3
r
DS(ON)
P-Channel MOSFET can be
used thus approximately doubling the +12 IOUT before
latch-off. IOC
TOTAL
= IOC
INTERNAL
(1 + r
DS(ON)
of internal
FET/r
DS(ON)
of external FET).
V
SUPPLY
FIGURE 7. SPLIT LOAD CIRCUIT
VS
VISEN
PWRON
3V5VG
R1
R2
TO SLEEP LOAD
TO FULL LOAD
R
SENSE
Q1
Q2
SYSTEM POWER MGT CONTROLLER
Q3
+
-
FLTN
12VO
12VIN
TO +12V LOAD
12VG
FIGURE 8. HIGH POWER +12V CIRCUIT
12VIN
R2
R3
R1
R
SENSE
Q1
Q2
HIP1011B
相关PDF资料 |
PDF描述 |
|---|---|
| HIP1011BCB-T | PCI Hot Plug Controller |
| HIP1012 | Dual Power Distribution Controller(双电源分配控制器) |
| HIP1012A | Dual Power Distribution Controller(双电源分配控制器) |
| HIP1020CK-T | nullSingle, Double or Triple-Output Hot Plug Controller |
| HIP2030 | 30V MCT/IGBT Gate Driver(MOS可控硅晶体管/绝缘栅双极晶体管门驱动器) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| HIP1011BCB-T | 功能描述:IC CTRLR HOT PLUG PCI 16-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关 应用:通用 内部开关:是 电流限制:可调 电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP（3x3） 包装:管件 |
| HIP1011BCBZA | 功能描述:热插拔功率分布 W/ANNEAL PCI HOT PLUG PWR CNTRLR RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| HIP1011BCBZA-T | 功能描述:热插拔功率分布 W/ANNEAL PCI HOT PLUG PWR CNTRLR RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| HIP1011CB | 功能描述:IC CTRLR HOT PLUG PCI 16-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关 应用:通用 内部开关:是 电流限制:可调 电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP（3x3） 包装:管件 |
| HIP1011CB-T | 功能描述:IC CTRLR HOT PLUG PCI 16-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关 应用:通用 内部开关:是 电流限制:可调 电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP（3x3） 包装:管件 |
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