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Renesas EL7584IR-T13
- Part No.:
- EL7584IR-T13
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
EL7584IR-T13.pdf
- Description:
- IC REG CONV TFT LCD 2OUT 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,653
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Product details
Overview
EL7584IR-T13 from Intersil is a 4-channel TFT-LCD power supply IC integrating a high-efficiency boost converter (5V–17V, 370mA @15V), dual regulated charge pumps (VON: +5V to +40V; VOFF: –40V to 0V, each up to 60mA), and a rail-to-rail VCOM buffer (2V–13V, 50mA). It operates from 2V–14V input and supports full industrial temperature range (–40°C to +85°C) in a 24-pin TSSOP package.
For engineers reviewing the EL7584IR-T13 datasheet, EL7584IR-T13 pinout, EL7584IR-T13 application, or EL7584IR-T13 equivalent, this page delivers verified specifications, validated pin functions, confirmed TFT-LCD system roles, and real-world design constraints including adjustable soft-start, ROSC-set frequency (200–1200 kHz), over-temperature shutdown (130°C), and internal power-up sequencing.
Technical Context
The EL7584IR-T13 implements a constant-frequency PWM boost controller with integrated N-channel MOSFET (RDS(on) = 0.22 Ω), dual independent charge pump regulators (VON/VOFF) synchronized at half the boost switching frequency, and a high-transconductance VCOM buffer optimized for capacitive LCD backplane drive. All regulators use internal reference-based feedback (VFBB = 1.300 V, VFBP = 1.310 V, VFBN = ±80 mV).
Power sequencing is fully internal: EN activation triggers VBOOST and VOFF first, followed by VCOM upon regulation detection, then VON after programmable delay (default 3.5 ms, extendable via DP pin capacitor). Over-temperature protection disables all outputs when die temperature exceeds 130°C with 40°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBOOST output | 5V–17V, 370mA continuous @15V - powers column drivers in TFT-LCD panels |
| VON output | +5V to +40V, 60mA @12V VDDP - supplies positive gate-on voltage for LCD pixel switching |
| VOFF output | –40V to 0V, 60mA @12V VDDN - supplies negative gate-off voltage for LCD pixel switching |
| VCOM buffer | 2V–13V, 50mA continuous, ±10 mV accuracy - drives LCD common electrode with low ripple |
| Switching frequency | 200–1200 kHz, set by ROSC resistor (62 kΩ → 900–1100 kHz) - enables small-inductor design |
| Efficiency | >90% typical at 15V/370mA - reduces thermal load in space-constrained display modules |
| Operating temp | –40°C to +85°C ambient - qualified for industrial and automotive display environments |
Pinout & Package
EL7584IR-T13 is housed in a 24-pin TSSOP package (JEDEC MO-153, pkg drawing MDP0044) with exposed thermal pad (not electrically connected). Pin functions are validated per FN7317 Rev 2.00 datasheet and match the 24-pin top-view layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SS | Soft-start control | Capacitor sets current-limit ramp time during startup; prevents inrush into VBOOST output |
| 2 FBB | Boost feedback input | Divides VBOOST to 1.300 V reference; sets output voltage via external R-divider |
| 3 EN | Enable input | Active-HIGH logic control (VHI = 1.6 V); initiates internal power-up sequence |
| 4 VDDB | Boost controller supply | Input supply for boost circuitry; must be ≥2 V before start-up begins |
| 5 LX1 / 6 LX2 | Boost switch outputs | Drive external inductor; dual LX pins reduce trace inductance and EMI |
| 7 VSSN / 9 VDDN / 10 FBN | VOFF regulator interface | VDDN = VBOOST input; FBN = feedback for negative output; VSSN = dedicated ground return |
| 11 DP | VON delay extension | Capacitor between DP and VSSP increases VON enable delay beyond default 3.5 ms |
| 12 INC / 13 VDDC / 14 VCOM / 15 VSSC | VCOM buffer interface | INC = input reference; VDDC = supply (6–15 V); VCOM = buffered output; VSSC = dedicated ground |
| 16 FBP / 17 VDDP / 18 DRVP / 19 VSSP | VON regulator interface | VDDP = VBOOST input; FBP = feedback for positive output; DRVP = pump driver; VSSP = ground |
| 20–21 PGND | Power ground returns | Dual PGND pins minimize ground bounce under high peak currents (1.75 A) |
| 22 VREF | Internal reference output | 1.310 V reference used by VOFF feedback comparator; requires 0.1 µF bypass |
| 23 ROSC | Frequency set input | Resistor to GND sets switching frequency (200–1200 kHz); determines inductor size |
| 24 VSSB | Boost ground return | Dedicated ground for boost controller; isolated from signal grounds to reduce noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 4-channel architecture | Single-chip solution replaces discrete boost + dual charge pumps + VCOM op-amp - reduces BOM count by ≥12 components |
| Adjustable soft-start | External capacitor on SS pin controls VBOOST rise time and limits inrush current into large panel capacitance |
| Built-in power-up sequencing | Automatic order: VBOOST → VOFF → VCOM → VON; eliminates need for external timing controllers or RC delays |
| Over-temperature protection | Thermal shutdown at 130°C with 40°C hysteresis - prevents latch-up or permanent damage during sustained overload |
| Pb-free RoHS compliance | EL7584IR-T13 uses 100% matte tin termination and Pb-free molding compound - compatible with SnPb and lead-free reflow |
Applications
| Automotive Instrument Clusters | Industrial HMI Panels |
|---|---|
Use Scenario: Driving 7–10 inch TFT-LCDs in vehicle dashboards with wide input voltage (9–16 V battery) and extended temperature requirements. IC Role / Device Role / Timing Role: EL7584IR-T13 generates VBOOST (12 V), VON (+20 V), VOFF (–15 V), and VCOM (4.5 V) simultaneously to power column drivers, gate drivers, and common electrode. Use Value: Internal sequencing ensures correct voltage ramp order to prevent LCD image distortion or pixel burn-in during cold start. |
Use Scenario: Powering ruggedized 5–12 inch TFT displays in factory HMIs where EMI, thermal stress, and long-term reliability are critical. IC Role / Device Role / Timing Role: EL7584IR-T13 delivers regulated, low-noise VCOM (±5 mV accuracy) and stable VON/VOFF rails despite varying panel load and ambient temperature shifts. Use Value: >90% boost efficiency minimizes heat generation inside sealed enclosures; TSSOP package supports automated optical inspection (AOI). |
| Medical Diagnostic Displays | Portable Data Terminals |
Use Scenario: Supplying high-contrast, flicker-free LCDs in ultrasound and patient monitor displays requiring precise VCOM stability and low EMI. IC Role / Device Role / Timing Role: EL7584IR-T13's VCOM buffer sources/sinks transient currents up to 50 mA while maintaining <10 mV offset - critical for grayscale fidelity. Use Value: Dedicated VSSC/VSSN/VSSP grounds isolate VCOM noise from charge pump switching, preserving signal integrity. |
Use Scenario: Enabling compact, battery-powered PDAs and handheld scanners with fast wake-up and low quiescent current during sleep mode. IC Role / Device Role / Timing Role: EL7584IR-T13 achieves 0.8 µA shutdown current (IQ1_B) and supports dynamic frequency scaling via ROSC to optimize efficiency across load ranges. Use Value: Adjustable soft-start and programmable VON delay prevent brown-out during simultaneous rail activation from limited-capacity Li-ion batteries. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TFT-LCD power supply applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65105RGER | Triple-output (VPOS/VNEG/VCOM) with fixed 1.2 MHz switching; no boost channel - requires external boost for VPOS if VIN < 5 V | Lacks integrated high-current boost; suitable only when VDD ≥ 5 V is available for charge pumps | Select TPS65105RGER only if system already provides ≥5 V rail; EL7584IR-T13 preferred when 2–14 V direct battery input is used. |
| MAX1627EAP+ | Single boost + dual charge pumps; no integrated VCOM buffer - requires external op-amp and precision resistors | Higher component count and layout sensitivity; lacks internal sequencing and soft-start control | Choose MAX1627EAP+ only for cost-sensitive designs where VCOM buffering is handled externally; EL7584IR-T13 reduces design risk and validation time. |
Compared with TPS65105RGER and MAX1627EAP+, the EL7584IR-T13 uniquely integrates all four required rails-including a 370mA boost converter-within one TSSOP package, eliminating external VCOM buffering and enabling deterministic power-up without additional timing circuitry.
Availability
EL7584IR-T13 is available at Aetrix Electronics and suitable for TFT-LCD panel manufacturing, medical display integration, and industrial HMI development requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for EL7584IR-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 (now part of Renesas Electronics) is a semiconductor company specializing in high-performance analog and power management ICs for display, industrial, and communications systems.
The EL7584 product line was designed specifically for TFT-LCD panel power management, integrating boost, dual charge pumps, and VCOM buffering into a single chip to replace multi-IC solutions in space-constrained display modules.
FAQ
What is the maximum continuous output current capability of the EL7584IR-T13's VBOOST channel?
The EL7584IR-T13's VBOOST channel delivers up to 370 mA continuously at 15 V output when VBOOST = 15 V. Absolute maximum rating is 800 mA, but sustained operation above 370 mA requires careful thermal design due to package power dissipation limits in the TSSOP-24 package.
Does the EL7584IR-T13 support adjustable VON and VOFF output voltages?
Yes, the EL7584IR-T13 supports adjustable VON and VOFF outputs via external resistor dividers on FBP and FBN pins. VON is set using R11/R12 (VFBP = 1.310 V), and VOFF is set using R21/R22 (VREF = 1.310 V). Output ranges are +5V to +40V and –40V to 0V respectively, dependent on external diode/capacitor configuration.
How does the EL7584IR-T13 handle power-up sequencing between its four output rails?
The EL7584IR-T13 executes an internal, fixed-order power-up sequence triggered by EN: first VBOOST and VOFF rise, then VCOM activates once VBOOST and VOFF reach regulation, and finally VON enables after a default 3.5 ms delay (extendable via DP pin capacitor). No external sequencing IC is required.
What is the role of the SS pin on the EL7584IR-T13, and how is it configured?
The SS (Soft-Start) pin on the EL7584IR-T13 controls the current limit ramp during startup. A capacitor connected from SS to GND sets the rate at which the internal current limit increases, thereby controlling VBOOST rise time and limiting inrush current into large panel capacitance - critical for reliable cold-start behavior.
Is the EL7584IR-T13 RoHS compliant and compatible with lead-free reflow processes?
Yes, the EL7584IR-T13 is RoHS compliant and Pb-free, using 100% matte tin termination and Pb-free molding compound. It meets IPC/JEDEC J-STD-020 moisture sensitivity level (MSL) requirements for lead-free reflow and is compatible with both SnPb and Pb-free soldering profiles.
EL7584IR-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
EL7584IR-T13 FAQ
1.How can I place an order for EL7584IR-T13 through Aetrix?
Please submit a Request for Quotation (RFQ) for EL7584IR-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 EL7584IR-T13 reliable?
The price and inventory of EL7584IR-T13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EL7584IR-T13 is usually 5 days.
3.What payment methods are accepted for EL7584IR-T13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EL7584IR-T13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EL7584IR-T13?
EL7584IR-T13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EL7584IR-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 EL7584IR-T13?
For technical support, including EL7584IR-T13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EL7584IR-T13 requirements.
6.How does Aetrix verify that EL7584IR-T13 is sourced from the original manufacturer or authorized distributors?
All EL7584IR-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 EL7584IR-T13 meets industry standards.
7.What is the process for return or replacement of EL7584IR-T13?
All EL7584IR-T13 units undergo pre-shipment inspection (PSI). If there is an issue with EL7584IR-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 EL7584IR-T13 part is unused and in its original packaging.
Return procedure for EL7584IR-T13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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