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参数资料
| 型号： | TPS2411PWG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO14 |
| 封装： | GREEN, PLASTIC, TSSOP-14 |
| 文件页数： | 30/31页 |
| 文件大小： | 1020K |
| 代理商： | TPS2411PWG4 |
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-470.02
R(RSET)
V
- 0.00314
(OFF)
÷
=
÷
è
(1)
SLVS727C – NOVEMBER 2006 – REVISED JUNE 2009 .................................................................................................................................................. www.ti.com
RSET: A resistor connected from this pin to GND sets the MOSFET fast turn-off comparator threshold. The
threshold is slightly positive when the RSET pin is left open. Current drawn by the resistor programs the turn-off
voltage to increasing negative values. The TPS2411 must have a negative threshold programmed to avoid an
unstable condition at light load. The expression for R(RSET) in terms of the fast comparator-trip voltage, V(OFF),
follows.
The units of the numerator are (V × V/A). V(OFF) is positive for V(A) greater than V(C), V(OFF) is less than 3 mV, and
R(RSET) is in ohms.
RSVD: Connect to ground.
STAT: STAT is a multifunction pin. STAT outputs the status of the GATE pin drive. The internal weak pull-up
pulls STAT to VDD when GATE is being driven high and V(GATE) is 0.4 V greater than V(A). If STAT is externally
pulled below VDD/2 while the pin would otherwise be high, the turnoff threshold is shifted negative (~157 mV)
from the RSET programmed value. Interconnecting the STAT pins of redundant devices, in systems that
normally have both devices on, reduces the likelihood that both devices will turn off in the event of a transient.
See the FUNCTIONAL BLOCK DIAGRAM, INPUT ORing and STAT, and Figure 13.
UV, OV, PG: These signals are used to monitor an input voltage for proper range. PG sinks current to GND if UV
is below its threshold, OV is above its threshold, or VDD is below the internal UVLO. PG may not be valid when
VDD is below the UVLO.
A high input on OV causes GATE to be driven low. UV does not effect the MOSFET operation. This permits OV
to be used as an active-high disable.
OV and UV should be connected to ground when not used, and PG may be left open. Multiple PG pins to be wire
ORed using a common pull-up resistor.
VDD: VDD is the primary supply for the gate drive charge pump and other internal circuits. This pin must be
connected a source that is 3 V or greater when the external MOSFET is to be turned on. VDD may be greater or
lower than the controlled bus voltage.
A 0.01-
F bypass capacitor, or 10- and a 0.0 1-F filter, is recommended because charge pump currents are
drawn through VDD.
8
Copyright 2006–2009, Texas Instruments Incorporated
Product Folder Link(s): TPS2410 TPS2411
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| TPS2411PWR | 功能描述:热插拔功率分布 N+1 OR-ing Pwr Rail 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 |
| TPS2411PWRG4 | 功能描述:热插拔功率分布 N+1 and OR-ing Pwr Rail Controller 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 |
| TPS2412D | 功能描述:热插拔功率分布 N+1/ORing Power Controller 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 |
| TPS2412DG4 | 功能描述:热插拔功率分布 N+1/ORing 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 |
| TPS2412DR | 功能描述:热插拔功率分布 N+1/ORing Power Controller 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 |
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