參數(shù)資料
型號(hào)： TSM1052
廠商： STMICROELECTRONICS
元件分類(lèi)： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6
封裝： LEAD FREE, SOT-23, 6 PIN
文件頁(yè)數(shù)： 1/15頁(yè)
文件大小： 262K
代理商： TSM1052
February 2008
Rev 2
1/15
15
TSM1052
Constant voltage and constant current controller
for battery chargers and adapters
Features
■ Secondary-side constant voltage and constant
current control
■ Very low voltage operation
■ Very low quiescent consumption
■ High-accuracy internal reference
■ Low external component count
■ Wired-or open-drain output stage
■ Easy frequency compensation
■ SOT23-6 micro package
Applications
■ Battery chargers
■ AC DC adapters
Description
The TSM1052 is a highly integrated solution for
SMPS applications requiring a dual control loop to
perform CV (constant voltage) and CC (constant
current) regulation.
The TSM1052 integrates a voltage reference, two
op amps (with OR-ed open-drain outputs), and a
low-side current sensing circuit.
The voltage reference, along with one op amp, is
the core of the voltage control loop; the current
sensing circuit and the other op amp make up the
current control loop.
The external components needed to complete the
two control loops are:
■ A resistor divider that senses the output of the
power supply (adapter, battery charger) and
fixes the voltage regulation set point at the
specified value;
■ A sense resistor that feeds the current sensing
circuit with a voltage proportional to the dc
output current; this resistor determines the
current regulation set point and must be
adequately rated in terms of power dissipation;
■ Frequency compensation components
(RC networks) for both loops.
The TSM1052, housed in one of the smallest
package available, is ideal for space-shrunk
applications such as adapters and chargers.
SOT23-6
Table 1.
Device summary
Part number
Package
Packaging
TSM1052
SOT23-6
Tape and reel
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TSM1052_08 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Constant voltage and constant current controller for battery chargers and adapters
TSM105CD 功能描述:電池管理 Voltage/Current Cont RoHS:否 制造商:Texas Instruments 電池類(lèi)型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
TSM105CDT 功能描述:電池管理 Voltage/Current Cont RoHS:否 制造商:Texas Instruments 電池類(lèi)型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
TSM105CLT 功能描述:電池管理 Voltage/Current Cont RoHS:否 制造商:Texas Instruments 電池類(lèi)型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
TSM105D 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:CONSTANT VOLTAGE AND CONSTANT CURRENT CONTROLLER FOR BATTERY CHARGERS AND ADAPTORS
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