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参数资料
| 型号： | ISL6151CBZA-T |
| 厂商： | INTERSIL CORP |
| 元件分类： | 电源管理 |
| 英文描述： | Negative Voltage Hot Plug Controller |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封装： | LEAD FREE, PLASTIC, MS-012AA, SOIC-8 |
| 文件页数： | 11/19页 |
| 文件大小： | 428K |
| 代理商： | ISL6151CBZA-T |
11
Applications Information
Typical Values for a representative system; which
assumes:
43V to 71V supply range; 48 nominal; UV = 43V;
OV = 71V
1Amp of typical current draw; 2.5 Amp Over-Current
100
μ
F of load capacitance (CL); equivalent RL of 48
(R = V/I = 48V/1A)
R1: 0.02
(1%)
R2: 10
(5%)
R3: 18k
(5%)
R4: 549k
(1%)
R5: 6.49k
(1%)
R6: 10k
(1%)
C1: 150nF (25V)
C2: 3.3nF (100V)
Q1: IRF530 (100V, 17A, 0.11
)
Quick Guide to Choosing Component
Values
(See fig
23 for reference)
This section will describe the minimum components needed
for a typical application, and will show how to select
component values. (Note that “typical” values may only be
good for this application; the user may have to select
alternate component values to optimize performance for
other applications). Each block will then have more detailed
explanation of how the device works, and alternatives.
R4, R5, R6 -
together set the Under-Voltage (UV) and Over-
Voltage (OV) trip points. When the power supply ramps up
and down, these trip points (and their hysteresis) will
determine when the GATE is allowed to turn on and off (UV
and OV do not control the PWRGD / PWRGD output). The
input power supply is divided down such that when the
voltage on the OV pin is below its threshold and the UV pin is
above its threshold their comparators will be in the proper
state signaling the supply is within its desired range, allowing
the GATE to turn on. The equations below define the
comparator thresholds for an increasing (in magnitude)
supply voltage.
R
5
The values of R4 = 549K, R5 = 6.49K, and R6 = 10K shown
in figure 23 set the Under-Voltage turn-on threshold to 43V,
and the Over-Voltage turn off threshold to 71V. The Under-
Voltage (UV) comparator has a hysteresis of 135mV (4.6V of
hysteresis on the supply) which correlates to a 38.4V turn off
voltage. The Over-Voltage comparator has a
25mV
hysteresis which translates to a turn on voltage (supply
decreasing) of approximately 69.6V.
Q1 -
is the FET that connects the input supply voltage to the
output load, when properly enabled. It needs to be selected
based on several criteria:
Maximum voltage expected on the input supply (including
transients) as well as transients on the output side.
Maximum current and power dissipation expected during
normal operation, usually at a level just below the current
limit threshold.
Power dissipation and/or safe-operating-area
considerations during current limiting and single retry
events.
Other considerations include the GATE voltage threshold
which affects the r
DS(ON)
(which in turn, affects the
voltage drop across the FET during normal operation),
and the maximum GATE voltage allowed (the ICs GATE
output is clamped to ~14V).
ISL6141
V
DD
UV
OV
V
EE
SENSE
GATE
DRAIN
PWRGD
R4
R5
R6
R1
R2
R3
C2
C1
Q1
CL
GND
-48V IN
-48V OUT
RL
(LOAD)
FIGURE 23. TYPICAL APPLICATION WITH MINIMUM COMPONENTS
V
UV
R
+
6
)
+
-----------+
R
6
1.255
×
=
(EQ. 1)
V
OV
R
----------------------------------------
R
6
R
+
+
1.255
×
=
(EQ. 2)
ISL6141, ISL6151
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| ISL6151CB-T | Negative Voltage Hot Plug Controller |
| ISL6141IB | Negative Voltage Hot Plug Controller |
| ISL6141IBZA | Negative Voltage Hot Plug Controller |
| ISL6141IBZA-T | Negative Voltage Hot Plug Controller |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6151IB | 功能描述:IC CTRLR HOT PLUG NEG VOLT 8SOIC 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 |
| ISL6151IB-T | 功能描述:IC CTRLR HOT PLUG NEG VOLT 8SOIC 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 |
| ISL6151IBZA | 功能描述:IC CTRLR HOT PLUG NEG VOLT 8SOIC RoHS:是 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 |
| ISL6151IBZA-T | 功能描述:IC CTRLR HOT PLUG NEG VOLT 8SOIC RoHS:是 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 |
| ISL6152 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Negative Voltage Hot Plug Controller |
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