High side driver with current sense ic

Open submenu current sense amplifiers current sense amplifiers. A mosfet driver is a type of power amplifier that accepts a lowpower input from a controller ic and produces a high current drive input for the gate of a high power transistor such as an insulatedgate bipolar transistor igbt or power mosfet. Highside current monitoring is especially useful in batterypowered systems since it does not interfere with the ground path of the battery charger. Vn5e050aje single channel high side driver with analog current. Mosfet drivers are beneficial to mosfet operation because the high current drive provided to the mosfet gate decreases the switching time between the. For example, max4376tauk is a single highside amplifier with a gain of 20. High side drivers with analog current sense stmicro mouser. This requires both a robust, low onresistance power switch and accurate analog circuitry for diagnostic, protection and control functions. These stmicroelectronics high side drivers with analog current sense are intended for driving resistive or inductive loads with one side connected to ground. The ncv8460a is a fully protected highside driver that can be used to switch a wide variety of loads.

Calculating accuracy in highside currentsense amplifiers when designing with current sense amplifiers, its important to understand the application tradeoffs to minimize the overall. The most obvious highside current sensing solution, using a differential amp. Analog devices growing portfolio of high side switches and mosfet fet drivers provides a simple and effective solution to drive single, dual, triple, or quad nchannel or pchannel fets. Calculating accuracy in highside currentsense amplifiers. Integrated highvoltage difference and currentsense amplifiers are now offered in the marketplace to perform this function. The ncv51511 integrates a driver ic and a bootstrap diode. Highside switches can safely drive high currents into complex resistive, inductive and capacitive grounded loads in compliance with the harsh automotive environment. Highside current sensing is a pervasive requirement in automotive, telecom, consumer, and industrial applications. Vn5e050aje single channel high side driver with analog current sense for.

Whats the difference between highside and low side current sensing. The max16834s integrated high side current sense amplifier eliminates the need for a separate high side led current sense amplifier in boostbuck applications. The third method ill tell you about is now commonly seen in ic solutions. The ncv51511 is high side and low side gatedrive ic designed for high voltage, high speed, driving mosfets operating up to 80 v. Why accurate highside current sensing is necessary in many applications, including motor control, solenoid control, and power.

The max16834 operates over a wide supply range of 4. The driver ic features low delay time and matched pwm input propagation delays, which further enhance the performance of the part. Mosfet drivers mosfet gate drivers, igbt, power mosfet. The ina8 and ina168 ina1x8 are highside, unipolar, current shunt monitors.

Max16834 highpower led driver with integrated highside. When measuring current with a shunt resistor, what side of the load do you put it on. Key features include wide input range of operation, extended temperature range of operation, a powerful gate drive, and short circuit protection. Wide input commonmode voltage range, low quiescent current, and tiny. Low side switches, with their integrated extra features, are power switches that can handle high currents in a safe way and in compliance with the harsh automotive environment. They only require a simple ttl logic input or a cmos logic input for 5pin switch. Common to all highside ic monitors from maxim is an ability to provide ground referenced voltage or current outputs with few or no additional components. Scheme provides highside current sensing for whiteled drivers. Selfprotected high side driver with temperature shutdown and current limit.