INDUSTRY COMPONENT

Level Shifter

Electronic component that converts voltage levels between different logic families in gate driver circuits

Component Specifications

Definition
A level shifter is an electronic interface component designed to translate voltage signals between different logic levels, typically used in gate driver circuits to ensure compatibility between low-voltage control signals (e.g., 3.3V or 5V from microcontrollers) and higher-voltage power devices (e.g., 12V, 15V, or higher for MOSFET/IGBT gates). It provides voltage translation while maintaining signal integrity, timing characteristics, and isolation where required.
Working Principle
Operates by detecting input voltage levels from one logic family and converting them to corresponding output voltage levels of another logic family. Common implementations include: 1) Voltage divider networks for unidirectional shifting, 2) MOSFET-based bidirectional shifting using pass transistors, 3) Op-amp based active shifting with gain control, and 4) Dedicated IC solutions with built-in voltage regulation and protection features. The component ensures proper threshold matching, minimizes propagation delay, and prevents signal distortion during translation.
Materials
Semiconductor materials (silicon, gallium arsenide for high-speed applications), ceramic or plastic packaging (SOIC, QFN, TSSOP), copper lead frames, gold bonding wires, epoxy molding compounds, with operating temperature range typically -40°C to +125°C
Technical Parameters
ParameterTypical rangeNotes & selection driver
Data RateUp to 100 Mbps
Package TypeSOIC-8, TSSOP-14, QFN-16
Channel Count1 to 8 channels
ESD Protection±8 kV HBM
Supply Voltage1.65V to 5.5V
Propagation Delay<10 ns typical
Voltage Range Input1.2V to 5.5V
Voltage Range Output1.8V to 18V
Operating Temperature-40°C to +125°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO 11898, IEC 60747, JEDEC JESD22

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Signal integrity degradation at high frequencies
  • Cross-conduction during voltage transitions
  • ESD damage during handling
  • Thermal runaway under continuous high-load operation
  • Electromagnetic interference affecting nearby sensitive circuits
FMEA Triads
Trigger: Exceeding maximum voltage ratings
Failure: Permanent damage to semiconductor junctions, leading to complete component failure
Mitigation: Implement overvoltage protection circuits, use zener diodes or TVS diodes at inputs, select components with adequate voltage margins
Trigger: Insufficient drive current capability
Failure: Slow switching of power devices, leading to increased switching losses and potential thermal damage
Mitigation: Select level shifters with adequate output current specifications, verify gate charge requirements of power devices, consider buffer stages if needed
Trigger: Ground bounce or noise coupling
Failure: False triggering, signal distortion, or timing errors in gate driver operation
Mitigation: Implement proper PCB layout with separate ground planes, use decoupling capacitors near power pins, minimize trace lengths, employ differential signaling where possible

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
±5% voltage translation accuracy, ±2 ns propagation delay variation across temperature range
Test Method
Automated test equipment (ATE) verification of voltage thresholds, propagation delay measurements using oscilloscope with calibrated probes, temperature cycling tests per JEDEC standards, ESD testing per HBM and CDM models

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Level Shifter

3 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

ETEK Microelectronics
Jiangsu, CN
ISO 26262
Listed on the company's own website · profile compiled by CNFX from public sources
CHIPONEIC
列车型正式上, Beijing, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Shanghai Belling Co., Ltd.
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Related Components

Dielectric Layer
Insulating layer in surface mount capacitors that stores electrical energy through polarization.
Optical Window
Transparent optical component for light transmission in polycarbonate lens housings
PCB Substrate
PCB substrate is the foundational insulating layer that provides mechanical support and electrical connectivity for electronic components in high-speed memory modules.
Edge Connector
Edge connector is a printed circuit board (PCB) connector that mates with the edge of another PCB, commonly used in high-speed memory modules for reliable electrical connections.

Frequently Asked Questions

What is the main purpose of a level shifter in gate driver circuits?

The primary purpose is to ensure compatibility between low-voltage control signals from microcontrollers or processors (typically 3.3V or 5V) and the higher voltage requirements of power semiconductor gates (often 10V-20V for proper MOSFET/IGBT switching), preventing device damage and ensuring reliable switching.

Can level shifters be used bidirectionally?

Yes, many modern level shifters support bidirectional operation, allowing data transmission in both directions on the same line, which is particularly useful for I2C, SPI, and other serial communication interfaces in gate driver applications.

What are the key considerations when selecting a level shifter?

Key considerations include: voltage translation range, propagation delay (critical for high-frequency switching), channel count, data rate capability, power consumption, package size, operating temperature range, and built-in protection features like ESD protection and overvoltage tolerance.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Request Manufacturing Insight for Level Shifter

Thank you. Your request has been sent. We'll respond within 1–3 business days.
Sorry, we couldn't send your message. Please try again, or email us at contact@cnfx.com.
XOR Gate
Get QuotesChat