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Renesas EL7584IRZ-T13
- Part No.:
- EL7584IRZ-T13
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
EL7584IRZ-T13.pdf
- Description:
- IC REG CONV TFT LCD 2OUT 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,898
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Product details
Overview
EL7584IRZ-T13 from Intersil is a 4-channel DC/DC converter IC designed for TFT-LCD panel power management, integrating a 370mA boost regulator (5V–17V), ±40V regulated charge pumps (VON/VOFF), and a 50mA VCOM buffer. It operates from 2V–14V input, delivers >90% efficiency at 15V/370mA, and supports adjustable 200kHz–1.2MHz switching frequency via ROSC pin.
For engineers reviewing the EL7584IRZ-T13 datasheet, EL7584IRZ-T13 pinout, EL7584IRZ-T13 application, or EL7584IRZ-T13 equivalent, key selection criteria include verified VBOOST load capability at 15V, confirmed VCOM output impedance of 0.25Ω, validated over-temperature shutdown at 130°C, and TSSOP-24 package compatibility with standard LCD display power rail sequencing requirements.
Technical Context
The EL7584IRZ-T13 implements a constant-frequency PWM boost converter with integrated N-channel MOSFET, dual independent regulated charge pumps (positive VON and negative VOFF), and a high-transconductance VCOM buffer. Its on-chip power-up sequence coordinates VBOOST → VOFF → VCOM → VON activation with user-adjustable VON delay via DP pin capacitor.
Regulation relies on internal reference voltages (1.300V for VBOOST, 1.310V for VON, ±80mV for VOFF) and external resistor dividers. Switching frequency (200–1200 kHz) is set by ROSC pin resistor; soft-start is controlled by SS pin capacitor; over-temperature protection triggers at 130°C with 40°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBOOST Output Range | 5V to 17V - sets column driver supply voltage in TFT-LCD panels |
| VBOOST Max Current | 370mA @ 15V - sufficient for mid-size LCD column drivers |
| VCOM Output Current | 50mA continuous - drives backplane capacitance without droop |
| VON/VOFF Range | +5V to +40V / –40V to 0V - enables gate-on/gate-off bias generation |
| Switching Frequency | 200kHz to 1.2MHz - adjustable via ROSC resistor for EMI/efficiency tradeoff |
| Operating Temp | –40°C to +85°C - qualified for industrial and portable display environments |
| Package | 24-pin TSSOP - RoHS-compliant, Pb-free, MDP0044 footprint |
Pinout & Package
EL7584IRZ-T13 is housed in a 24-pin TSSOP package (JEDEC MO-153, MDP0044 drawing) with exposed thermal pad connected internally to substrate ground. Pin functions are validated per FN7317 Rev 2.00 datasheet, including dedicated ground returns (VSSB, VSSC, VSSN, VSSP, PGND) and separate driver outputs (DRVP, DRVN, LX1, LX2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable control input | Active-high logic start signal initiating full on-chip power sequence |
| FBB | VBOOST feedback input | Connects to resistor divider to set VBOOST output voltage (1.300V reference) |
| LX1/LX2 | Boost switch node outputs | Drive external inductor; dual MOSFETs support higher current capability |
| VCOM | VCOM buffer output | Delivers low-impedance (0.25Ω), high-slew-rate drive to LCD backplane |
| DRVP/DRVN | Charge pump driver outputs | Drive external diode-capacitor networks for VON/VOFF generation |
| ROSC | Oscillator timing input | Resistor-to-ground sets switching frequency (200–1200 kHz) |
| SS | Soft-start control | Capacitor determines current limit ramp time during startup |
| DP | VON delay extension | External capacitor increases default 3.5ms VON enable delay |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 4-channel power solution | Eliminates need for discrete boost, VON, VOFF, and VCOM ICs in TFT-LCD designs |
| Adjustable VON power-up delay | Default 3.5ms delay extendable to >80ms via DP pin capacitor for precise panel timing |
| High-efficiency boost conversion | >90% efficiency at 15V/370mA reduces thermal load in space-constrained displays |
| VCOM buffer with 0.25Ω output impedance | Maintains <±10mV accuracy under 50mA load, critical for image uniformity |
| Over-temperature protection | Auto-shutdown at 130°C with 40°C hysteresis prevents thermal runaway in sealed enclosures |
Applications
| TFT-LCD Panel Power Supply | Portable Display Backlight Driver |
|---|---|
Use Scenario: Powering column drivers, gate drivers, and common electrode in 7–10 inch TFT-LCD modules used in industrial HMIs and medical displays. IC Role / Device Role / Timing Role: Central power management IC providing synchronized VBOOST, VON, VOFF, and VCOM rails with built-in sequencing. Use Value: Reduces BOM count by consolidating four power rails into single TSSOP-24 IC while ensuring stable startup timing across temperature. | Use Scenario: Generating bias voltages for active-matrix OLED and LTPS LCD panels in handheld PDAs and ruggedized tablets. IC Role / Device Role / Timing Role: Delivers regulated ±40V charge pump outputs and precision VCOM reference for pixel voltage stability. Use Value: Enables compact, low-noise bias generation with <±10mV VCOM accuracy-critical for grayscale fidelity in battery-powered devices. |
| Automotive Instrument Cluster Display | Industrial Control Panel Display |
Use Scenario: Supplying display bias rails in automotive instrument clusters operating across –40°C to +85°C ambient range. IC Role / Device Role / Timing Role: Provides thermally robust, sequenced power delivery with over-temperature shutdown for functional safety compliance. Use Value: Guarantees reliable startup and sustained operation under automotive thermal cycling, eliminating external thermal monitoring circuitry. | Use Scenario: Powering monochrome and color STN/TFT displays in factory automation HMIs exposed to EMI-rich industrial environments. IC Role / Device Role / Timing Role: Delivers low-ESR, high-PSRR (102dB) VCOM buffer and noise-immune charge pump regulation. Use Value: Maintains display contrast and eliminates flicker by rejecting supply ripple and common-mode noise on VCOM line. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-rail LCD power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1677EAP+T | Single-output boost + dual charge pumps; no integrated VCOM buffer; max VBOOST = 16V | Requires external op-amp for VCOM; lower integration for cost-sensitive non-critical displays | Select when VCOM buffering is handled externally and board space allows discrete amplification |
| TPS65105PWPR | 3-channel (boost + VON + VOFF); no VCOM buffer; 1.2MHz fixed frequency; 300mA VBOOST | Lacks VCOM functionality; requires external amplifier; optimized for smaller panels | Choose for compact 5–7 inch displays where VCOM is generated off-chip or via MCU DAC |
Compared with MAX1677EAP+T and TPS65105PWPR, the EL7584IRZ-T13 uniquely integrates all four essential TFT-LCD rails-including a 50mA VCOM buffer with 0.25Ω output impedance-enabling single-IC solutions for medium-format displays requiring tight VCOM regulation and coordinated power sequencing.
Availability
EL7584IRZ-T13 is available at Aetrix Electronics and suitable for TFT-LCD panel manufacturing, industrial HMI development, and portable display design requiring stable component supply with long-term lifecycle support.
Supply support for EL7584IRZ-T13 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
Intersil Corporation (now part of Renesas Electronics) is a U.S.-based analog and power management semiconductor company focused on high-performance interface, power, and precision analog ICs.
The EL7584 product line was specifically developed for TFT-LCD display power systems, targeting integration of boost, VON, VOFF, and VCOM functions into a single package to reduce system complexity and improve reliability in portable and industrial displays.
FAQ
What is the maximum continuous output current capability of the EL7584IRZ-T13's VBOOST channel?
The EL7584IRZ-T13 delivers up to 370mA continuous output current at VBOOST = 15V, as specified in the FN7317 datasheet under typical operating conditions. Peak internal FET current is rated at 1.75A, supporting transient loads while maintaining regulation. This current level is validated for use with standard 10µH inductors and Schottky diodes in TFT-LCD column driver applications.
Does the EL7584IRZ-T13 include an integrated VCOM buffer, and what are its key electrical specifications?
Yes, the EL7584IRZ-T13 integrates a dedicated VCOM buffer with 50mA continuous output current, ±10mV output voltage accuracy over 2V–13V range, and 0.25Ω output impedance (measured at VDDC = VBOOST = 12V). Its PSRR is 102dB and CMRR is 93dB, making it suitable for high-contrast LCD backplane driving where supply noise rejection is critical.
How is the switching frequency adjusted on the EL7584IRZ-T13, and what is its operational range?
The EL7584IRZ-T13 uses an external resistor connected from ROSC pin to ground to set switching frequency between 200kHz and 1.2MHz. A 62kΩ resistor yields ~1MHz operation. The relationship is defined by f(MHz) = 1/(0.0118 × ROSC + 0.378), enabling precise EMI optimization and inductor size reduction based on application requirements.
What is the purpose of the DP pin on the EL7584IRZ-T13, and how does it affect system timing?
The DP pin on the EL7584IRZ-T13 extends the default 3.5ms delay before VON charge pump activation during power-up. Connecting a capacitor (e.g., 1nF) between DP and VSSP increases this delay to ~80ms, allowing precise synchronization with panel initialization sequences. This ensures VON is enabled only after VBOOST and VOFF have stabilized, preventing display artifacts.
Is the EL7584IRZ-T13 RoHS-compliant, and what packaging information applies to this variant?
Yes, the EL7584IRZ-T13 is RoHS-compliant and Pb-free, using 100% matte tin plate termination finish and RoHS-compliant molding compounds. It is supplied in 13-inch tape-and-reel format (T13) in a 24-pin TSSOP package per MDP0044 drawing, with thermal characteristics matching θJA = 85°C/W on high-conductivity PCBs.
EL7584IRZ-T13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- Converter, TFT LCD
- Voltage - Input:
- 2V ~ 14V
- Number of Outputs:
- 2
- Voltage - Output:
- 5V ~ 17V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-TSSOP
EL7584IRZ-T13 FAQ
1.How can I place an order for EL7584IRZ-T13 through Aetrix?
Please submit a Request for Quotation (RFQ) for EL7584IRZ-T13 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 EL7584IRZ-T13 reliable?
The price and inventory of EL7584IRZ-T13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EL7584IRZ-T13 is usually 5 days.
3.What payment methods are accepted for EL7584IRZ-T13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EL7584IRZ-T13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EL7584IRZ-T13?
EL7584IRZ-T13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EL7584IRZ-T13 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 EL7584IRZ-T13?
For technical support, including EL7584IRZ-T13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EL7584IRZ-T13 requirements.
6.How does Aetrix verify that EL7584IRZ-T13 is sourced from the original manufacturer or authorized distributors?
All EL7584IRZ-T13 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 EL7584IRZ-T13 meets industry standards.
7.What is the process for return or replacement of EL7584IRZ-T13?
All EL7584IRZ-T13 units undergo pre-shipment inspection (PSI). If there is an issue with EL7584IRZ-T13, 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 EL7584IRZ-T13 part is unused and in its original packaging.
Return procedure for EL7584IRZ-T13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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