25 V low-side gate drivers with protection features

Overview

Single-channel low-side gate drivers with integrated overcurrent protection or fault reporting

EiceDRIVER™ 25 V single-channel low-side non-inverting gate driver IC for IGBTs or MOSFETs

The 1ED44176N01F, 1ED44175N01B, and 1ED44173N01B are equipped with over-current protection (OCP) which is typically implemented by a current measurement with a comparator and multiple resistors and capacitors. The gate drivers provide cost and space savings by integrating the comparator. This family of low-side gate drivers utilize Infineon’s proprietary latch immune CMOS technologies to enable a rugged monolithic construction while realizing best-in-class fault reporting accuracy with OCP threshold tolerance of +/-5%. In addition, Infineon’s IC technology enables a tiny PG-SOT23 package (or DSO-8 for 1ED44176) by combining the fault output and enable functions into a single pin.

The family also includes 1ED44171N01B, a cost-effective, simple driver with enable and fault reporting functions. It can also be used as a second source option to the popular IRS44273L with a single PCB layout. Enabling a single-supplier, dual sourcing strategy for fast-reacting supply flexibility.

Products

Highlights

Key features	System benefits	Applications
Integrated over-current protection (OCP) comparator (1ED44176, 1ED44175, 1ED44173) Single pin for fault output and enable function (1ED44175, 1ED44173, 1ED44171) -10 Vdc negative Input capability of OCP pin Programmable fault clear time Under-voltage lock out (UVLO) protection Wide supply voltage range Separate logic ground and gate driver return (1ED44176) Industry-standard pin-out options Single supplier, dual sourcing options (1ED44171 and IRS44273) 3 kV ESD HBM	Integrated over-current protection and single-pin fault output and enable function provide potential space and cost savings OCP threshold tolerance of ±5% provides accurate sensing Flexible fault clear time setup makes it easy to adjust to different microcontroller processing speeds Eliminates switching loss at low VCC supply voltage 25 V VCC max makes the IC more robust against VCC spikes in harsh circuit applications Avoids noise coupling from output to input to improve noise immunity Enables multi-sourcing strategy with single supplier for fast and flexible supply response High level of ESD protection for robustness	Residential air conditioning Heating ventilation and air conditioning (HVAC) Microwave ovens Induction cooktop Heat Pump Refrigeration and freezing Ceiling fan AC-DC power supplies

Feature comparison

Part number	Package options	I_O+/-[A]	UVLO [V]	VOCTH [mV]	t_on/off[ns]	Ground pins	Enable input	Fault output	Programmable fault clear time
1ED44171	SOT23-5	±2.6	11.9 / 11.4		50	COM	EN / FLT
1ED44173	SOT23-6	±2.6	8 / 7	-250	34	COM	EN / FLT
1ED44175	SOT23-6	±2.6	11.9 / 11.4	-250	50	COM	EN / FLT
1ED44176	DSO-8	+0.8 / -1.75	11.9 / 11.4	500	50	VSS / COM	EN / FLT		FLTC
IRS44273	SOT23-5	±1.5	10.2 / 9.2		50	COM

Typical Application Diagram for 1ED44171

Typical Application Diagram for 1ED44173

Typical Application Diagram for 1ED44175

Typical Application Diagram for 1ED44176

Low Side Drivers

With our state-of-the-art process, EiceDRIVER™ low side gate driver ICs utilize low-voltage circuitry with the robust technology of high-voltage gate drivers. Our world-class fabrication techniques enable high-current gate drivers for high-power-density applications in industry-standard DSO-8 and small form-factor SOT23 and WSON packages.

We offer comprehensive families of single-low-side and dual-low-side gate driver ICs with flexible options for output current, logic configurations, packages, and protection features such as under-voltage lockout (UVLO), integrated overcurrent protection (OCP), and truly differential inputs (TDI). We also offer automotive qualified low side gate driver.

For detailed information, please click here to have a look at our low side drivers portfolio.

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1ED4417x family of 25 V single-channel low-side gate drivers

In this training, we will focus on our low-side gate driver family – 1ED4417x and on its target applications. With this information, you will be able to grow your businesses by winning new designs and customers.