TSM108 Step down controller with constant voltage/current

TSM108 is a step-down PWM controller designed to drive an external P-channel MOSFET, providing for constant voltage and constant current regulations in battery charger applications.

TSM108 can easily be configured for very wide voltage and current needs.

It has been realized in rugged BCD technology and includes a PWM generator, Voltage and Current control loops, a precise Voltage Reference, and a Gate Driver. The device can sustain 60V on Vcc, and therefore meet the standard Load Dump requirements of the 12V cars battery.

On boards there are other security functions which lock the external power in OFF state: OVLO (Over Voltage Lockout) and UVLO (Under Voltage Lockout). The mosfet gate is also protected from over voltage drive thanks to a 12V clamping protection circuit.

Moreover, a standby feature allows very low quiescent current when activated, but keeping safe the external power element when Off.

The IC is suitable for 12V car accessories, as well as other DC/DC step down converters.

技术特性

Output high side current sensing
Precise CC/CV regulation
Adjustable switching frequency
Adjustable OVP/UVP UVLO thresholds
Standby mode feature
Sustains 60V
Minimal external components count
Drives external P-channel MOSFET or PNP Bipolar transistors

功能框图

TSM108 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
TSM108IDT	Active		1000	SO-14	Tape And Reel		TSM108IDT
TSM108ID	Active		1000	SO-14	Tube		TSM108ID

DATASHEET

描述	版本	大小
TSM108 : DS2036: Voltage and current stepdown PWM controller	4	318KB

APPLICATION NOTES

描述	版本	大小
AN1695: TSM108 evaluation board 12V to 6V DC/DC converter	1	1955KB

BOARDS AND TOOLS

型号	描述
STEVAL-ISA059V1	DC-DC converter demonstration board based on the TSM108