Display Driver: Supply Voltage 3.3V to 5V DC

Component Specifications

Definition

A display driver is an integrated circuit or electronic module that processes input signals from a controller or processor and generates the appropriate voltage, current, and timing signals required to operate digital display elements such as LEDs, LCDs, or seven-segment displays. In digital counters, it ensures accurate numerical representation by controlling individual segments or pixels.

Working Principle

The display driver receives binary-coded decimal (BCD) or serial data from the counter's logic circuit, decodes this information, and activates specific output lines corresponding to display segments. It uses multiplexing techniques to sequentially power display elements, reducing pin count and power consumption while maintaining visual persistence through rapid cycling.

Materials

Silicon semiconductor substrate with copper/aluminum interconnects, encapsulated in epoxy resin (DIP, SOP, or QFP packages). Contacts: gold-plated or tin-lead alloy.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Interface	SPI, I2C, or parallel
Refresh Rate	60-100 Hz
Supply Voltage	3.3V to 5V DC
Current Per Segment	10-20 mA
Display Compatibility	7-segment, 14-segment, dot matrix
Operating Temperature	-40°C to +85°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

IEC 60747, JEDEC JESD22

Parent Products

This component is used in the following industrial products

Digital Counter

An electronic component that displays numerical values, typically used for counting, measuring, or monitoring operations within a system.

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Engineering Analysis

Risks & Mitigation

Overcurrent damage to display segments
Signal timing mismatch causing flicker
ESD sensitivity during handling
Thermal overload in high-duty cycles

FMEA Triads

Trigger: Voltage spike from power supply
Failure: Driver IC burnout
Mitigation: Implement surge protection circuits and adhere to voltage ratings.

Trigger: Poor solder joints
Failure: Intermittent display operation
Mitigation: Use automated soldering with quality control and thermal stress testing.

Industrial Ecosystem

Compatible With

Digital counters, panel meters, process indicators, timers

Typical Suppliers & Equivalents

Texas Instruments, Maxim Integrated, NXP, STMicroelectronics, ON Semiconductor

Compliance & Inspection

Tolerance

±5% voltage regulation, ±2% current matching between segments

Test Method

Functional testing with signal generators and oscilloscopes per IEC 61000-4 series for EMC.

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 Display Driver

6 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

Also makes: Power Management, Voltage Monitor, Buffer/Driver and 4 more