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Texas Instruments LM8207MTX/NOPB
- Part No.:
- LM8207MTX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Video Amps and Modules
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
LM8207MTX/NOPB.pdf
- Description:
- IC AMP TFT-LCD 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,978
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Product details
Overview
LM8207MTX/NOPB from Texas Instruments is an integrated TFT-LCD gamma correction and VCOM driver IC comprising 18-channel gamma buffers, a high-current VCOM buffer (300 mA short-circuit capability), and a temperature-compensated 1.295 V internal voltage reference. It operates from 6 V to 16 V supply, supports −40°C to +105°C industrial temperature range, and drives capacitive column loads in large-panel displays.
For engineers reviewing the LM8207MTX/NOPB datasheet, LM8207MTX/NOPB pinout, LM8207MTX/NOPB application, or LM8207MTX/NOPB equivalent, this device delivers rail-to-rail gamma voltage buffering with position-optimized output swing, fast VCOM recovery (200 ns), and programmable reference output up to VDD − 0.3 V - critical for stable grayscale reproduction and panel uniformity in high-resolution LCDs.
Technical Context
The LM8207MTX/NOPB integrates three functionally distinct analog subsystems on a single die: 18 individually optimized gamma buffers segmented by output voltage swing (Buffers 1–2 swing to VDD; 3–16 span VDD−1.2 V to VSS+0.6 V; 17–18 swing to VSS), a 300 mA VCOM driver with 10 MHz bandwidth and 4.5 V/µs slew rate, and a bandgap-based 1.295 V reference with ±1% accuracy and 70 ppm/°C drift.
Each gamma buffer group features tailored input voltage ranges, output current capabilities (e.g., Buffer 9 sinks 15–27 mA), and recovery times (400 ns for gamma, 200 ns for VCOM), enabling precise, load-independent gamma curve implementation across full rail-to-rail voltage distribution while maintaining stability under dynamic column switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gamma Channels | 18 independent buffers, segmented into 3 swing groups for full-rail gamma curve coverage |
| VCOM Output Current | 300 mA short-circuit sink/source - enables fast settling on large-panel VCOM capacitance |
| Reference Voltage | 1.295 V ±1% - stable baseline for gamma resistor ladder and VREF programming |
| Operating Voltage | 6 V to 16 V - compatible with standard TFT panel power rails |
| Temperature Range | −40°C to +105°C - qualified for industrial and automotive display environments |
| VCOM Recovery Time | 200 ns (CL = 100 pF) - minimizes ghosting during row-addressed pixel updates |
| Package | 48-pin TSSOP - surface-mount compatible with high-density display controller PCBs |
Pinout & Package
LM8207MTX/NOPB is housed in a 48-pin Thin Shrink Small Outline Package (TSSOP) with 0.5 mm pitch, thermal pad exposed on underside, and θJA = 84°C/W. Pin 1 is OUT_VREF; pins 2, 22, 23, 26, 27, 47 are NC; pin 12 is VDD; pin 37 is VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT_VREF (Pin 1) | Programmable reference amplifier output | Delivers 1.295 V base reference; configurable up to VDD − 0.3 V via external resistive divider |
| IN_VREF (Pin 48) | Reference amplifier feedback input | Connects to R1/R2 divider node to set OUT_VREF; accepts ≤10 nA bias current |
| IN_VCOM (Pin 24) | VCOM buffer inverting input | Accepts DC control voltage for VCOM level setting; referenced to VSS |
| OUT_VCOM (Pin 25) | VCOM buffer output | Drives common electrode of all pixels; rated for 300 mA SC current and >100 pF load |
| IN_1 to IN_18 (Pins 3–21) | Gamma buffer inputs | Accept gamma tap voltages from resistor ladder; each mapped to corresponding OUT_x |
| OUT_1 to OUT_18 (Pins 46–28) | Gamma buffer outputs | Drive column drivers with position-specific swing and current capability (e.g., OUT_9 sinks 27 mA) |
Key Features
| Feature | Design Value |
|---|---|
| Position-optimized gamma buffers | Three swing groups (VDD-referenced, mid-rail, VSS-referenced) match gamma curve slope requirements |
| VCOM driver stability | Stable with ≥100 pF capacitive load and 300 mA peak current - eliminates need for external compensation |
| Programmable reference output | OUT_VREF adjustable from 1.295 V to VDD − 0.3 V using two external resistors - enables flexible gamma scaling |
| Low gamma offset voltage | ≤10 mV max input offset (Buffers 1–2, 17–18) - preserves gamma linearity across 18 taps |
| Fast transient response | 200 ns VCOM recovery and 400 ns gamma recovery - suppresses visual artifacts during rapid frame updates |
Applications
| Large-Format TFT-LCD Panels | High-Resolution Industrial Displays |
|---|---|
|
Use Scenario: Driving 1920×1080+ panels with 18-point gamma correction and active VCOM compensation. IC Role / Device Role / Timing Role: Gamma buffers isolate resistor ladder from column driver switching noise; VCOM buffer maintains common electrode voltage during row-by-row pixel write cycles. Use Value: Eliminates grayscale shift and improves contrast uniformity across panel area by decoupling gamma generation from dynamic load variations. |
Use Scenario: Medical imaging displays requiring stable grayscale fidelity over extended operating temperatures. IC Role / Device Role / Timing Role: Internal 1.295 V reference provides temperature-stable baseline for gamma ladder; VCOM buffer sustains low-noise common voltage despite EMI-rich hospital environments. Use Value: ±1% reference accuracy and 70 ppm/°C drift ensure consistent luminance calibration across −40°C to +105°C ambient range. |
| Automotive Infotainment Systems | Public Information Kiosks |
|
Use Scenario: Dashboard displays subject to wide thermal cycling and vibration-induced electrical transients. IC Role / Device Role / Timing Role: VCOM buffer's 300 mA short-circuit rating handles worst-case capacitive discharge events; gamma buffers maintain signal integrity during CAN bus–induced supply ripple. Use Value: Robust operation without external protection circuitry reduces BOM count and improves system-level MTBF. |
Use Scenario: Outdoor kiosks exposed to solar heating and unregulated AC-DC power supplies. IC Role / Device Role / Timing Role: Wide 6–16 V input range accommodates brownout conditions; PSRR >75 dB (gamma/VCOM/reference) rejects supply noise from low-cost SMPS. Use Value: Maintains color accuracy and eliminates flicker even when input voltage sags to 6 V during grid instability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TFT-LCD gamma and VCOM driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM8342MTX/NOPB | 16-channel gamma buffer only; no integrated VCOM driver or voltage reference | Requires external VCOM buffer and reference IC - increases layout complexity and component count | Select when VCOM drive is handled separately and gamma channel count ≤16 suffices |
| TPS65105RGER | Dual-output DC/DC converter + VCOM driver + gamma reference; no gamma buffers | Provides power conversion but lacks 18-channel buffering - needs external op-amps for gamma | Select when system requires integrated power management and discrete gamma buffering is acceptable |
Compared with LM8207MTX/NOPB, LM8342MTX/NOPB reduces integration by omitting VCOM and reference functions, increasing design effort for full-panel support; TPS65105RGER shifts gamma responsibility to external circuitry, trading analog integration for power conversion capability - neither matches LM8207MTX/NOPB's consolidated 18-channel gamma + VCOM + reference architecture.
Availability
LM8207MTX/NOPB is available at Aetrix Electronics and suitable for large-format TFT-LCD panels, industrial HMI displays, and automotive infotainment systems requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for LM8207MTX/NOPB 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of experience in display interface and power management ICs.
The LM8207MTX/NOPB belongs to TI's TFT-LCD display driver product line, designed specifically to integrate gamma correction, VCOM driving, and voltage reference functions into a single package for cost-sensitive, high-reliability LCD applications.
FAQ
What is the maximum programmable output voltage of the LM8207MTX/NOPB reference section?
The LM8207MTX/NOPB reference amplifier (OUT_VREF) can be programmed up to VDD − 0.3 V using external resistors R1 and R2 connected to IN_VREF (Pin 48). At VDD = 16 V, this yields a maximum output of 15.7 V. The base reference is 1.295 V, and load regulation is 0.14 mV/mA up to 10 mA output current. This programmability allows direct scaling of the gamma ladder without additional op-amps.
How does the LM8207MTX/NOPB handle different gamma buffer output voltage ranges?
The LM8207MTX/NOPB partitions its 18 gamma buffers into three groups with distinct output swing capabilities: Buffers 1–2 swing from VDD to VSS + 0.6 V (optimized for top-end gamma); Buffers 3–16 operate from VDD − 1.2 V to VSS + 0.6 V (mid-range linear region); Buffers 17–18 swing from VDD − 1.6 V to VSS (bottom-end gamma). This segmentation ensures optimal headroom and linearity across the full gamma curve without external level-shifting.
Can the LM8207MTX/NOPB VCOM driver operate stably with >100 pF capacitive load?
Yes - the LM8207MTX/NOPB VCOM driver is characterized for stability with ≥100 pF capacitive load and exhibits 200 ns recovery time under that condition. Its internal compensation and 300 mA short-circuit current rating enable robust performance on large panels where VCOM node capacitance often exceeds 200 pF. No external compensation components are required per the datasheet design guidelines.
What is the input voltage range for the LM8207MTX/NOPB gamma buffers?
The input voltage range varies by buffer group: Buffers 1–2 accept VIN from VSS + 0.6 V to VDD; Buffers 3–8 and 11–16 accept VIN from VSS + 0.6 V to VDD − 0.6 V; Buffer 9 accepts VIN from VSS to VDD − 0.6 V; Buffers 10, 17–18 accept VIN from VSS + 0.6 V to VDD − 0.6 V. These ranges align with typical gamma ladder tap voltages and prevent input stage saturation.
Does the LM8207MTX/NOPB include ESD protection, and what level is specified?
Yes - the LM8207MTX/NOPB includes limited built-in ESD protection: 2.5 kV per Human Body Model (1.5 kΩ + 100 pF) and 250 V per Machine Model (0 Ω + 200 pF). TI recommends handling precautions including shorting leads together or storing in conductive foam to prevent electrostatic damage to the MOS input stages, especially during board assembly and rework.
LM8207MTX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Applications:
- TFT-LCD Panels: Gamma Buffer, VCOM Driver
- Output Type:
- Rail-to-Rail
- Number of Circuits:
- 18
- -3db Bandwidth:
- 2 MHz
- Slew Rate:
- 1V/µs
- Current - Supply:
- 6.5 mA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply, Single/Dual (±):
- 6V ~ 16V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 48-TSSOP
LM8207MTX/NOPB FAQ
1.How can I place an order for LM8207MTX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM8207MTX/NOPB 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 LM8207MTX/NOPB reliable?
The price and inventory of LM8207MTX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM8207MTX/NOPB is usually 5 days.
3.What payment methods are accepted for LM8207MTX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM8207MTX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM8207MTX/NOPB?
LM8207MTX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM8207MTX/NOPB 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 LM8207MTX/NOPB?
For technical support, including LM8207MTX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM8207MTX/NOPB requirements.
6.How does Aetrix verify that LM8207MTX/NOPB is sourced from the original manufacturer or authorized distributors?
All LM8207MTX/NOPB 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 LM8207MTX/NOPB meets industry standards.
7.What is the process for return or replacement of LM8207MTX/NOPB?
All LM8207MTX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM8207MTX/NOPB, 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 LM8207MTX/NOPB part is unused and in its original packaging.
Return procedure for LM8207MTX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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