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IR2085STRPBF Infineon Chip Using monolithic high voltage gate drivers

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IR2085STRPBF Infineon Chip Using monolithic high voltage gate drivers

Brand Name:	Infineon Chip
Model Number:	IR2085STRPBF
MOQ:	2500
Packaging Details:	2500PCS/reel
Payment Terms:	T/T

Detail Information

Product Description

Detail Information

Place of Origin:

China

Document:

Model:

IR2085STRPBF

Product Name:

Infineon Chip

Operating Temperature:

- 40 °C ~ + 125 °C

Power Dissipation:

Type:

SMD/SMT

Power Supply Voltage:

10 V - 15V

Supply Ability:

100000

Highlight:

IR2085STRPBF

IR2085S Infineon Chip

High Voltage Gate Driver

Product Description

Infineon Chip IR2085STRPBF Using monolithic high-voltage gate drivers

Introduction

This document highlights the most common subjects driving a half-bridge power stage in motor drive

applications (with monolithic IC gate driver) and to suggest appropriate solutions to solve the issues.

Topics such as the sizing of some fundamental components, as bootstrap circuit and on/off gate resistors; and

half-bridge parasitic elements with their effects are discussed. Some possible solutions are proposed and

finally, some layout tips are presented.

All the situations and the solutions proposed are, unless otherwise specified, for a typical Infineon monolithic

gate driver with floating bootstrap supply

The bootstrap circuit

The bootstrap supply is formed by a diode and a capacitor connected as shown in Figure 1.

This method has the advantage of being simple and low cost, but may force some limitations on duty-cycle and

on-time as they are limited by the requirement to refresh the charge in the bootstrap capacitor.

Choosing an appropriate capacitor can drastically reduce these limitations.

Bootstrap capacitor sizing

To size the bootstrap capacitor, the first step is to establish the minimum voltage drop (ΔVBS) that is guaranteed when the high-side IGBT is on. If VGEmin is the minimum gate emitter voltage to maintain, the voltage drop must be:

under the condition:

Here, VCC is the IC voltage supply, VF is bootstrap diode forward voltage, VCEon is emittercollector voltage of the low-side IGBT, and VBSUV-

is the high-side supply undervoltage negative going threshold.

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products details

IR2085STRPBF Infineon Chip Using monolithic high voltage gate drivers

OSRAM LED Chip

CREE LED Chip

ST IC Chips

TI Chips

Bridgelux LED Chip

Infineon Chip

LUMINUS LED Chip

LED Lamp Beads

SAMSUNG IC Chips

Micron Chips

SK Hynix Chips

Lumileds LED Chip

SAMSUNG LED Chip

SEOUL LED Chip

NICHIA LED Chip

NeXperia Chips

ONsemi Chips

ADI Chips

TSLC Semileds LED Lamp Beads

High Power LED Chip

OSRAM LED Chip

CREE LED Chip

ST IC Chips

TI Chips

Bridgelux LED Chip

Infineon Chip

LUMINUS LED Chip

LED Lamp Beads

SAMSUNG IC Chips

Micron Chips

SK Hynix Chips

Lumileds LED Chip

SAMSUNG LED Chip

SEOUL LED Chip

NICHIA LED Chip

NeXperia Chips

ONsemi Chips

ADI Chips