PMIC - Display Drivers

Part Number	Description / PDF	Quantity
NLV14543BDR2G Sanyo Semiconductor/ON Semiconductor	IC DRVR 7 SEGMENT 16SOIC	0
BU91797MUF-ME2 ROHM Semiconductor	IC DRVR 144 SEGMENT VQFN048V7070	2850
LC75821E-E	LCD DISPLAY DRIVER	8306
BU9795AFV-LBE2 ROHM Semiconductor	IC LCD DVR 27X4COM IND 40SSOP	1899
LC74772VH-9015-TLM-E	IC DISPLAY CTLR ON SCREEN 24SSOP	3000
TC7107ACKW713 Roving Networks / Microchip Technology	IC DRVR 7 SEG 3 1/2 DIGIT 44MQFP	0
BU97950AFUV-E2 ROHM Semiconductor	IC DRVR 280 SEGMENT 48TSSOP	1988
CP2403-GMR Silicon Labs	IC DRVR 64 SEGMENT 32QFN	0
PCF2113DH/4,557 NXP Semiconductors	DOT MATRIX LCD DRIVER	0
PCF2111CT/1,118 NXP Semiconductors	IC DRVR 64 SEGMENT 40VSOP	1995
MAX7221CWG+T Maxim Integrated	IC DRVR 7 SEGMNT 8 DIGIT 24SOIC	2042
LC75809PTS-H	LIQUID CRYSTAL DRIVER	2056
ICM7244AIM44Z Intersil (Renesas Electronics America)	LED DRIVER, 25-SEGMENT, PQFP44	18
LM2415T	IC DRIVER MONOLITHIC TO-220-11	4757
HV5812P-G Roving Networks / Microchip Technology	IC DISPLAY DRIVER 20CH 80V 28DIP	80
ICM7218AIQI+ Maxim Integrated	IC DRVR 7 SEGMNT 8 DIGIT 28PLCC	257702
HV518PJ-G Roving Networks / Microchip Technology	IC DRVR DISPLAY 32CH 80V 44PLCC	0
ICM7212MIPL+ Maxim Integrated	IC DRVR 7 SEGMENT 4 DIGIT 40DIP	930
LM2485NA	CONSUMER CIRCUIT, PDIP24	7505
BU97930MUV-E2 ROHM Semiconductor	IC DRVR DOT MATRIX 40VQFN	584

PMIC - Display Drivers

1. Overview

Power Management ICs (PMICs) for Display Drivers are specialized integrated circuits designed to manage power delivery and control signals for display technologies. They optimize power efficiency, brightness control, color accuracy, and timing synchronization for displays. These ICs are critical in modern devices such as smartphones, tablets, automotive displays, and industrial equipment, where energy efficiency and visual performance are paramount.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
LCD Segment/Segmented Drivers	Support segmented LCD panels with low-voltage biasing and multiplexing	Watches, calculators, industrial meters
OLED Panel Drivers	Provide precise current control for organic light-emitting diodes	Smartphones, wearables, VR headsets
LED Backlight Drivers	Regulate current for LCD backlighting using PWM or analog dimming	Laptops, TVs, automotive infotainment
ePaper Display Drivers	Optimize voltage waveforms for bistable electrophoretic displays	E-readers, electronic shelf labels
Integrated PMIC-Display Combos	Combine power management with display timing/controllers	Tablets, automotive cluster displays

3. Structure and Composition

PMIC Display Drivers typically include:

Power Conversion Circuits: DC-DC converters (boost/buck) or charge pumps for voltage regulation
Current Sources: Precision-controlled sinks/sources for pixel activation
Timing Controllers: Generate gate/source driving signals synchronized with input video
Interface Modules: I2C, SPI, or MIPI DSI for communication with host processors
Protection Circuits: Overcurrent, overtemperature, and short-circuit safeguards

Common packaging: QFN, BGA, or WLCSP with 40-200 pins depending on integration level.

4. Key Technical Specifications

Parameter	Description	Importance
Output Current Range	Maximum current per channel (10 A 100mA)	Determines display brightness capability
Voltage Accuracy	Regulation tolerance ( 1% 5%)	Impacts image stability and flicker reduction
Dimming Resolution	PWM frequency and bit depth (8 16 bits)	Enables fine brightness adjustments
Power Efficiency	Conversion efficiency (70% 95%)	Extends battery life in portable devices
Operating Temperature	Range (-40 C to +125 C)	Ensures reliability in harsh environments

5. Application Areas

Consumer Electronics: Smartphones (OLED drivers), tablets (integrated PMICs)
Automotive: Instrument clusters (TFT-LCD drivers), HUDs (LED backlight controllers)
Medical Devices: Diagnostic displays (high-accuracy OLED drivers)
Industrial: HMI panels (segmented LCD drivers with ruggedization)
AR/VR: Microdisplay drivers with high refresh rates

6. Key Manufacturers and Representative Products

Manufacturer	Product Series	Key Features
Texas Instruments	LM3630A	18-channel WLED driver with 16-bit PWM dimming
STMicroelectronics	STLD40	40V automotive LED driver with fault diagnostics
Renesas Electronics	R2R46	ePaper display driver with on-chip waveform ROM
Analog Devices	AD5522	LCD segment driver for industrial test equipment
Novatek Microelectronics	NT51021	Integrated TDDI PMIC for mobile OLED panels

7. Selection Guidelines

Key considerations:

Display Type: Match IC to LCD/OLED/ePaper requirements
Power Requirements: Calculate total current/voltage needs
Interface Compatibility: Verify processor interface (MIPI vs. SPI)
Thermal Management: Check thermal resistance ratings for high-load scenarios
Cost vs. Integration: Balance discrete drivers vs. all-in-one PMIC solutions

Example: For a 6.1" smartphone OLED display, select an IC like Novatek NT51021 with integrated gate control and >90% efficiency.

8. Industry Trends

Future developments include:

Mini/Micro-LED Support: Drivers for high-density emissive displays
AI Integration: On-chip algorithms for dynamic power optimization
Higher Integration: PMICs combining display, touchscreen, and sensor control
Energy Harvesting: Self-powered driver architectures
0.1 A Standby Current: Ultra-low quiescent current for always-on displays

Market growth driven by automotive displays (CAGR 12.3% 2023 2030) and AR/VR adoption.