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参数资料
| 型号： | TPS24713DGSR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | POWER SUPPLY SUPPORT CKT, PDSO10 |
| 封装： | GREEN, PLASTIC, MSOP-10 |
| 文件页数： | 34/34页 |
| 文件大小： | 2148K |
| 代理商： | TPS24713DGSR |
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J(MAX)
C(MAX)
LIM
θJC(MAX)
T
P
<
R
-
LIM
SENSE
25 mV
I
=
R
T
FLT
10 A
C =
t
1.35 V
SLVSAL2C
– JANUARY 2011 – REVISED MAY 2011
(2)
where TJ(MAX) is the maximum desired transient junction temperature and TC(MAX) is the maximum case
temperature prior to a start or restart. RJC(MAX) is the junction-to-case thermal impedance of the pass MOSFET
M1 in units of °C/W. Both TJ(MAX) and TC(MAX) are in °C.
SENSE: This pin connects to the negative terminal of RSENSE. It provides a means of sensing the voltage across
this resistor, as well as a way to monitor the drain-to-source voltage across the external FET. The current limit
(3)
A fast trip shutdown occurs when V(VCC – VSENSE) exceeds 60 mV.
TIMER: A capacitor CT connected from the TIMER pin to GND determines the overload fault timing. TIMER
sources 10
A when an overload is present, and discharges CT at 10 A otherwise. M1 is turned off when VTIMER
reaches 1.35 V. In an application implementing auto-retry after a fault, this capacitor also determines the period
before the external MOSFET is re-enabled. A minimum timing capacitance of 1 nF is recommended to ensure
proper operation of the fault timer. The value of CT can be calculated from the desired fault time tFLT, using
(4)
The latch mode (TPS24710/12) or the retry mode (TPS24711/13) occurs if the load current exceeds the current
limit threshold or the fast-trip shutdown threshold, While in latch mode, the TIMER pin continues to charge and
discharge the attached capacitor periodically. In retry mode, the external MOSFET is disabled for sixteen cycles
of TIMER charging and discharging. The TIMER pin is pulled to GND by a 2-mA current source at the end of the
16th cycle of charging and discharging. The external MOSFET is then re-enabled. The TIMER pin capacitor, CT,
can also be discharged to GND during latch mode or retry mode by a 2-mA current source whenever any of the
following occurs:
VEN is below its falling threshold.
VVCC drops below the UVLO threshold.
VCC: This pin performs three functions. First, it provides biasing power to the integrated circuit. Second, it serves
as an input to the power-on reset (POR) and undervoltage lockout (UVLO) functions. The VCC trace from the
integrated circuit should connect directly to the positive terminal of RSENSE to minimize the voltage sensing error.
Bypass capacitor C1, shown in the typical application diagram on the front page, should be connected to the
positive terminal of RSENSE. A capacitance of at least 10 nF is recommended.
Copyright
2011, Texas Instruments Incorporated
9
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相关代理商/技术参数 |
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| TPS24720EVM-001 | 功能描述:电源管理IC开发工具 TPS24720 Eval Mod RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS24720RGTR | 功能描述:热插拔功率分布 2.5-18V Hi Eff Adj Ltd Hot-Swap 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 |
| TPS24720RGTT | 功能描述:热插拔功率分布 2.5-18V Hi Eff Adj Ltd Hot-Swap 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 |
| TPS24740EVM-596 | 功能描述:IC CTRLR HOT SWAP 2.5-18V 16QFN 制造商:texas instruments 系列:- 零件状态:在售 主要用途:电源管理，热交换控制器 嵌入式:- 使用的 IC/零件:TPS24740 主要属性:- 辅助属性:- 所含物品:板 标准包装:1 |
| TPS24740RGET | 功能描述:Hot Swap Controller, OR Controller 1 Channel General Purpose 24-VQFN (4x4) 制造商:texas instruments 系列:- 包装:剪切带（CT） 零件状态:有效 类型:热交换控制器，OR 控制器 通道数:1 内部开关:无 应用:通用 特性:闭锁故障，UVLO 可编程特性:限流，故障超时，OVP，开启电压 电压 - 电源:2.5 V ~ 18 V 电流 - 输出（最大值）:- 工作温度:-40°C ~ 125°C 电流 - 电源:4.2mA 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商器件封装:24-VQFN（4x4） 功能引脚:ENHS，ENOR，FLTb，FSTP，IMON，IMONBUF，OV，PGHS，PLIM，RVSNP，RVSNM，SENM，SET，STAT，TFLT，TINR 标准包装:1 |
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