Part # TSM108 datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: Voltage and current stepdown PWM controller

Part Details:

TSM108 VOLTAGE AND CURRENT STEPDOWN PWM CONTROLLER OUTPUT HIGH SIDE CURRENT SENSING APPLICATION DIAGRAM 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 DESCRIPTION D SO14 TSM108 is a step-down PWM controller designed (Plastic Micropackage) to drive an external P-channel MOSFET, provid-ing constant voltage and constant current regula- ORDER CODE tions in battery charger applications. Package TSM108 can easily be configured for very wide Part Number Temperature Range voltage and current needs. D TSM108I -40°, +125°C · It has been realized in rugged BCD technologyand includes a PWM generator, Voltage and Cur- D = Small Outline Package (SO) - also available in Tape & Reel (DT) rent control loops, a precise Voltage Reference, PIN CONNECTIONS (top view) and a Gate Driver. The device can sustain 60V onVcc, and therefore meet the standard Load Dumprequirements of the 12V cars battery. VCC 1 14 GD On boards there are other security functions which !STBY 2 13 VS lock the external power in OFF state: OVLO (OverVoltage Lockout) and UVLO (Under Voltage Lock- GND 3 12 ICTRL out). The mosfet gate is also protected from overvoltage drive thanks to a 12V clamping protection UV 4

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TSM108.pdf Datasheet