SLVAE30E February 2021 – March 2021 TPS1H000-Q1 , TPS1H100-Q1 , TPS1H200A-Q1 , TPS1HA08-Q1 , TPS25200-Q1 , TPS27S100 , TPS2H000-Q1 , TPS2H160-Q1 , TPS2HB16-Q1 , TPS2HB35-Q1 , TPS2HB50-Q1 , TPS4H000-Q1 , TPS4H160-Q1
With LED loads and modules increasingly finding use in automotive and industrial applications, TI Smart High Side Switches are well suited to meet the needs for driving LED loads with reliable diagnostics. Table 5-2 shows a few of the key design parameters that must be considered when selecting a Smart High Side Switch to drive an LED load:
|Design Parameter||Design Consideration|
|On Resistance (RON)||Low enough RON to limit the total power dissipation to meet the PCB thermal requirements.|
|Current Limit (ILIM)||ILIM above the DC load current. In case LED modules with input capacitance, choose ILIM to match the charging time requirements.|
|Current Sense Accuracy||Current Sense Accuracy that meets requirements within the load current range.|
With proper design, a Smart High Side Switch can provide diagnostics and reliable protection for LED loads. TI offers a wide variety of switches with different on-resistances and diagnostic features to meet the requirements for any LED driving application.