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Analog Devices Inc./Maxim Integrated MAX1886EZK+T
- Part No.:
- MAX1886EZK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Video Amps and Modules
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MAX1886EZK+T.pdf
- Description:
- IC AMP TFT-LCD TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,025
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Product details
Overview
MAX1886EZK+T from Maxim Integrated is a high-current operational transconductance amplifier (OTA) designed as a VCOM drive buffer for TFT LCD backplane biasing. It delivers ±550mA peak output current, operates from +4.5V to +13V supply, features 0.45mA quiescent current, and remains stable with output capacitance from 0.47µF to unlimited values-enabling robust drive of large-area notebook and monitor LCD panels.
For engineers reviewing the MAX1886EZK+T datasheet, MAX1886EZK+T pinout, MAX1886EZK+T application, or MAX1886EZK+T equivalent, key selection criteria include guaranteed ±550mA drive at -40°C to +85°C, thermal shutdown at 170°C, input offset voltage ≤±5mV, CMRR ≥70dB, and compatibility with ceramic output capacitors down to 0.47µF.
Technical Context
The MAX1886EZK+T implements a BiCMOS OTA architecture optimized for capacitive load driving, with transconductance (gm) scaling from 0.3S at small-signal to 10S at large-signal overdrive-directly improving transient response under pulsed load conditions. Its feedback structure uses FB+ (noninverting) and FB− (inverting) inputs to support mid-supply or programmable VCOM biasing.
Stability is achieved without external compensation: the device maintains unity-gain bandwidth GBW = gm/COUT, where COUT ≥ 0.47µF ceramic capacitor (ESR ≤ 50mΩ) is required at OUT. Thermal fault protection activates at 170°C with 15°C hysteresis, ensuring safe operation during sustained high-current drive.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply Range | +4.5V to +13V - supports wide-input industrial and display power rails |
| Peak Output Current | ±550mA - drives large TFT LCD backplanes with fast settling under pulsed loads |
| Output Capacitance Range | 0.47µF to unlimited - enables use with standard ceramic filters without instability risk |
| Input Offset Voltage | ±5mV max - ensures precise VCOM level accuracy across temperature |
| Quiescent Current | 0.45mA - minimizes standby power in battery-sensitive notebook applications |
| Thermal Shutdown | 170°C with 15°C hysteresis - prevents latch-up during sustained high-current operation |
| CMRR / PSRR | ≥70dB - rejects noise from source drivers and supply ripple in LCD systems |
Pinout & Package
MAX1886EZK+T is housed in a low-profile 5-pin Thin SOT23 package (1.1mm max height), optimized for space-constrained LCD panel designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Amplifier output terminal | Drives VCOM node; requires ≥0.47µF ceramic capacitor to GND placed adjacent to pin |
| 2 - GND | Analog ground reference | Common return path for all internal circuitry and external filter components |
| 3 - VCC | Positive supply input | +4.5V to +13V supply; must be bypassed with 0.47µF capacitor close to pin |
| 4 - FB+ | Noninverting input | Accepts VCOM reference voltage (e.g., mid-supply or gamma-adjusted level) |
| 5 - FB− | Inverting input | Receives feedback from output filter capacitor terminal for closed-loop stability |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive-load stability | Guaranteed stable with 0.47µF–∞ output capacitance - eliminates need for external compensation networks |
| Dynamic transconductance scaling | gm increases from 0.3S to 10S with output current - improves transient response without sacrificing DC accuracy |
| Thermal fault protection | 170°C shutdown with 15°C hysteresis - prevents thermal runaway during extended high-current drive |
| Low-noise biasing | 70dB CMRR/PSRR - maintains clean VCOM reference despite switching regulator ripple and source driver coupling |
Applications
| Notebook LCD Panels | Monitor LCD Panels |
|---|---|
Use Scenario: Driving the common electrode (VCOM) of high-resolution active-matrix notebook displays with dot inversion scheme. IC Role / Device Role / Timing Role: High-current VCOM drive buffer providing precise, low-drift DC bias while rejecting source driver switching noise. Use Value: Enables sharp image quality by minimizing flicker and crosstalk via ±550mA peak drive and 70dB PSRR. | Use Scenario: Biasing the VCOM node of desktop monitor LCD panels requiring fast settling under dynamic video content. IC Role / Device Role / Timing Role: Operational transconductance amplifier delivering stable mid-supply reference with adaptive bandwidth. Use Value: Supports rapid grayscale transitions with <5µs startup time and no overshoot due to gm-scaling architecture. |
| Industrial HMI Displays | Medical Imaging LCDs |
Use Scenario: Providing reliable VCOM bias in ruggedized human-machine interface displays operating across -40°C to +85°C. IC Role / Device Role / Timing Role: Temperature-stable OTA buffer with guaranteed ±5mV offset and thermal shutdown for long-term reliability. Use Value: Ensures consistent contrast and uniformity over full industrial temperature range without calibration drift. | Use Scenario: Driving diagnostic-grade LCD backplanes in medical imaging equipment where image fidelity is critical. IC Role / Device Role / Timing Role: Precision VCOM buffer with low 0.45mA quiescent current and minimal input offset for artifact-free grayscale rendering. Use Value: Eliminates visible banding or ghosting by maintaining sub-10mV VCOM error under varying load and temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar VCOM drive buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9632ASA+ | Lower peak current (±150mA), fixed-gain architecture, no gm scaling | Suitable only for smaller panels (<15") with lower capacitance loads | Select when cost sensitivity outweighs drive strength requirements and load capacitance is <1µF |
| LMH6723MA/NOPB | Higher bandwidth (1.8GHz), no thermal shutdown, not qualified for extended temperature | Lacks integrated fault protection and fails outside 0°C–70°C range | Consider only for lab prototypes with active thermal management and narrow ambient range |
Compared with MAX9632ASA+ and LMH6723MA/NOPB, the MAX1886EZK+T uniquely combines ±550mA drive, 0.47µF–∞ stability, thermal shutdown, and -40°C to +85°C qualification-making it the only option qualified for production-grade notebook and industrial LCD backplane biasing.
Availability
MAX1886EZK+T is available at Aetrix Electronics and suitable for notebook LCD panels, monitor LCD panels, and industrial HMI displays requiring stable component supply, long-lifecycle availability, and guaranteed extended-temperature performance.
Supply support for MAX1886EZK+T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in analog, mixed-signal, and power management ICs for precision, high-reliability applications.
The MAX1886EZK+T belongs to Maxim's display interface and biasing product line, engineered specifically for high-current, low-drift VCOM drive in active-matrix TFT LCD systems.
FAQ
What is the minimum output capacitance required for stable operation of the MAX1886EZK+T?
The MAX1886EZK+T requires a minimum 0.47µF ceramic output capacitor connected between OUT and GND, placed adjacent to the OUT pin. This capacitor must have ESR ≤ 50mΩ to ensure stability across the full -40°C to +85°C temperature range. The MAX1886EZK+T remains stable with larger capacitances up to unlimited values, enabling flexibility in panel design.
Does the MAX1886EZK+T support mid-supply VCOM biasing?
Yes, the MAX1886EZK+T supports mid-supply VCOM biasing via its FB+ (noninverting) input. When FB+ is set to VCC/2, the amplifier regulates OUT to maintain that reference level at the VCOM node. This configuration is commonly used in dot-inversion TFT LCDs to minimize flicker and improve image uniformity.
What is the thermal shutdown behavior of the MAX1886EZK+T?
The MAX1886EZK+T activates thermal shutdown at 170°C junction temperature and includes 15°C hysteresis to prevent oscillation near the trip point. Once triggered, the output disables until junction temperature falls below 155°C. This protects the device during sustained high-current drive or poor PCB thermal dissipation-critical for compact LCD panel layouts.
Can the MAX1886EZK+T drive large capacitive loads without external compensation?
Yes, the MAX1886EZK+T is internally compensated and does not require external compensation components. Its architecture guarantees stability with output capacitance ranging from 0.47µF to unlimited values-enabling direct drive of large-area LCD backplanes without added resistors, capacitors, or feedback networks.
What is the typical quiescent current of the MAX1886EZK+T at room temperature?
The typical quiescent current of the MAX1886EZK+T is 0.45mA at +25°C and VCC = 10V. This low supply current helps reduce system-level power consumption in portable applications such as notebooks, while maintaining full drive capability and precision performance across the extended temperature range.
MAX1886EZK+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- TFT-LCD Panels: VCOM Driver
- Output Type:
- -
- Number of Circuits:
- 1
- -3db Bandwidth:
- -
- Slew Rate:
- -
- Current - Supply:
- 450 µA
- Current - Output / Channel:
- 550 mA
- Voltage - Supply, Single/Dual (±):
- 4.5V ~ 13V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- TSOT-23-5
MAX1886EZK+T FAQ
1.How can I place an order for MAX1886EZK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1886EZK+T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX1886EZK+T reliable?
The price and inventory of MAX1886EZK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1886EZK+T is usually 5 days.
3.What payment methods are accepted for MAX1886EZK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1886EZK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1886EZK+T?
MAX1886EZK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1886EZK+T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX1886EZK+T?
For technical support, including MAX1886EZK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1886EZK+T requirements.
6.How does Aetrix verify that MAX1886EZK+T is sourced from the original manufacturer or authorized distributors?
All MAX1886EZK+T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX1886EZK+T meets industry standards.
7.What is the process for return or replacement of MAX1886EZK+T?
All MAX1886EZK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX1886EZK+T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX1886EZK+T part is unused and in its original packaging.
Return procedure for MAX1886EZK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX1886EZK+T Tags
-
LT6552CS8#PBF
Analog Devices Inc.
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LT6205IS5#TRPBF
Analog Devices Inc.
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LT6206IMS8#TRPBF
Analog Devices Inc.
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LT6552CDD#PBF
Analog Devices Inc.
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LT6552IS8#PBF
Analog Devices Inc.
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LT1252CS8#PBF
Analog Devices Inc.
-
AD818ARZ-REEL7
Analog Devices Inc.
-
MAX4310EUA+
Analog Devices Inc./Maxim Integrated
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AD829ARZ
Analog Devices Inc.
-
AD810ARZ
Analog Devices Inc.
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MAX4310ESA+
Analog Devices Inc./Maxim Integrated
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MAX4313ESA+
Analog Devices Inc./Maxim Integrated
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