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2022-09-24 23:16:53
TSM108 - Automotive Switch Mode Voltage and Current Controller...
This issue is measured at the output positive line constant voltage mode control constant current mode control high precision voltage and current control loop adjustable switching frequency adjustable under voltage lockout on the adjustable under voltage lockout standby mode (low quiescent current)
maintains a minimum external component count of 60V for either an N driving capable P-MOSFET or PNP transistor
describe
The TSM108 is a P-channel MOSFET controller that ensures constant voltage and constant current switching power supplies (stepping down), such as in automotive battery charging applications. The TSM108 can be easily configured for a very wide range of voltage and current needs. The TSM108 is built on a rugged BCD process and includes a PWM generator, voltage and current control loops, precision voltage reference and a P-MOSFET gate drive output. The TSM108 can be maintained at VCC60V, thus meeting the standard requirements in the field of load shedding vehicles. TSM108 includes safety function locking
PMOS device in off state: OVLO gate (overvoltage lockout) and UVLO (undervoltage lockout). The gate overvoltage protection of the P-MOSFET is also due to the driver's 12V clamp protection circuit. The TSM108 includes a backup feature that allows very low quiescent current after activation, as well as a safe P-MOSFET off state. The TSM108 is used in automotive environments such as accessories, as well as many other DC/DC step downs.