TSM1052 Constant voltage and constant current controller for battery chargers and adapters

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

技术特性

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

应用领域

Battery chargers
AC DC adapters

管脚定义图

TSM1052 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
TSM1052	Active		1000	SOT23-6L	Tape And Reel	-10 °C-85 °C

DATASHEET

描述	版本	大小
TSM1052 : Constant voltage and constant current controller for battery chargers and adapters	2	263KB

APPLICATION NOTES

描述	版本	大小
AN2840: EVLVIP17-5WCHG: 5 W low standby consumption battery charger demonstration board based on the VIPER17HN	1	653KB
AN2448: EVALTSM1052: Ultra small battery charger using TSM1052	1	1111KB
AN3212: 3.5 W to 7 W high power factor offline LED driver based on VIPer devices	1	2180KB
AN2711: 120 VAC input-Triac dimmable LED driver based on the L6562A	3	1316KB

BOARDS AND TOOLS

型号	描述
STEVAL-ILL016V2	New 15 W offline TRIAC dimmable LED driver based on L6562AD and TSM1052 (USA Market - 115 V)
EVALTSM1052	Ultra small battery charger using TSM1052