STMicroelectronics TSM108
TSM108 is a step-down PWM controller designed to drive an external P-channel MOSFET, providing constant voltage and constant current regulations in battery charger applications. 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.| Part No. | TSM108 |
|---|---|
| Datasheet | TSM108 Download |
| Manufacturer |  STMicroelectronics |
| Description | VOLTAGE AND CURRENT STEPDOWN PWM CONTROLLER |
| Buy | Stock & Price |
DESCRIPTION
TSM108 can easily be configured for very wide voltage and current needs. 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. APPLICATION DIAGRAM D SO14 (Plastic Micropackage) ORDER CODE Part Number Temperature Range TSM108I -40°, +125°C Package D● D = Small Outline Package (SO) - also available in Tape & Reel (DT) PIN CONNECTIONS (top view) VCC 1 !STBY 2 GND 3 UV 4 OV 5 G6 OSC 7 14 GD 13 VS 12 ICTRL 11 VCTRL 10 VREF 9 ICOMP 8 VCOMP March 2006 1/13 TSM108 PIN
DESCRIPTION
Name VCC !STBY GND UV OV G OSC VCOMP ICOMP VREF VCTRL ICTRL VS GD PinDESCRIPTION
1 Supply voltage of both the signal part and the gate drive 2 Standby Command; when Low, the device goes in standby 3 Ground.
