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Renesas ISL98602IRAAZ-T7A
- Part No.:
- ISL98602IRAAZ-T7A
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
ISL98602IRAAZ-T7A.pdf
- Description:
- IC REG CTRLR/CONV 5OUT 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,669
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Product details
Overview
ISL98602IRAAZ-T7A from Renesas (formerly Intersil) is a 5-channel LCD display power management IC integrating a 5.5A boost converter for AVDD (up to 19V), dual charge pumps for VON (up to +36V/120mA) and VOFF (down to −10V/120mA), one synchronous buck regulator (3.3V/2.5V, 2.0A peak FET), and one synchronous buck controller (0.9V–2.0V output). It serves as the core power supply for large-panel LCD TVs.
For engineers reviewing the ISL98602IRAAZ-T7A datasheet, ISL98602IRAAZ-T7A pinout, ISL98602IRAAZ-T7A application, or ISL98602IRAAZ-T7A equivalent, key selection criteria include AVDD boost current capability, integrated VON slicing for flicker reduction, power-good signaling for TCON enable, and -40°C to +85°C ambient operation with full protection suite (OVP/UVP/OTP/OCP/UVLO).
Technical Context
The ISL98602IRAAZ-T7A implements a fixed-frequency 1.3MHz architecture across all switching channels-boost, Buck1, and charge pumps-enabling compact external components. Its AVDD boost stage uses a delay-FET feedback topology for improved regulation accuracy at the panel load point, while integrated OVP safeguards downstream AVDD-side circuitry.
Buck1 integrates dual 2.3A synchronous FETs and internal soft-start; Buck2 is a controller-only stage requiring external high- and low-side MOSFETs. The VON charge pump drives high-current loads and feeds an on-die slicing circuit that dynamically adjusts VON timing to suppress display flicker-a function not present in generic charge pump ICs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 9.5V to 15.0V - supports standard 12V LCD panel rail with margin for line drop and ripple. |
| AVDD Boost Output | Up to 19V @ 5.5A - powers TFT source drivers requiring high-voltage, high-current AVDD. |
| VON Charge Pump | +36V @ 120mA - supplies gate-on voltage for large-panel LCD row drivers. |
| VOFF Charge Pump | −10V @ 120mA - provides gate-off bias for complementary TFT switching. |
| Buck1 Output | 3.3V or 2.5V @ 2.0A peak - powers timing controller (TCON) logic and interface circuits. |
| Buck2 Controller Range | 0.9V–2.0V - enables flexible generation of core logic voltages (e.g., 1.2V, 1.8V) using external FETs. |
| Switching Frequency | 1.3MHz - allows use of small ceramic capacitors and low-profile inductors in space-constrained TV chassis. |
| Operating Temperature | −40°C to +85°C ambient - qualified for consumer TV environments including enclosed backlights and passive heatsinks. |
Pinout & Package
Package: 40-lead 6mm × 6mm QFN with exposed thermal pad (RoHS-compliant, Pb-free).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable Input | Active-high logic input controlling global device startup and sequencing initiation. |
| PGND1–PGND4 | Power Ground Returns | Dedicated ground pins per power domain (boost, Buck1, Buck2, charge pumps) minimize noise coupling and improve regulation stability. |
| SWIN / SW1 / SW2 / CPG / DRVP / DRVN | Switch Node Terminals | Direct connection points for external inductors, charge pump capacitors, and gate drivers-critical for EMI control and thermal layout. |
| FBB / FBN / FBP / COMPB1 / COMPB2 | Feedback & Compensation | Supports both resistor-set and dynamic compensation for Buck1, Buck2, and boost loops-enables stable regulation under varying panel load transients. |
| GHC / GHON / YV1C | VON Slice Control | Interface signals for external timing adjustment of VON pulse width and position-key for flicker optimization across panel types. |
| PGOOD | Power Good Output | Open-drain signal asserting after all rails meet regulation and sequencing thresholds-used to enable TCON IC. |
Key Features
| Feature | Design Value |
|---|---|
| VON Slice Circuit | On-die analog circuitry dynamically trims VON timing to reduce vertical/horizontal flicker without external FPGA or timing IC intervention. |
| AVDD Delay Switch | Integrated high-side switch isolates AVDD during startup sequencing-prevents inrush into unpowered panel stages and ensures safe ramp-up order. |
| Automatic Sequencing | Hardware-based start-up sequence (AVDD → VON/VOFF → Buck1 → Buck2) eliminates need for external sequencer IC or firmware coordination. |
| Full Protection Suite | Includes UVLO, UVP, OVP, OCP, and OTP-each independently latched and recoverable via EN toggle, ensuring robust field reliability in unattended TV deployments. |
| Thermal Pad Design | Exposed copper pad under 40-lead QFN enables direct PCB thermal vias to inner ground planes-supports >3W continuous dissipation in standard 4-layer TV PCBs. |
Applications
| LCD TV Panel Power | Timing Controller (TCON) Supply |
|---|---|
Use Scenario: Powering 4K UHD LCD panels with high-resolution source drivers requiring precise AVDD, VON, and VOFF rails. IC Role / Device Role / Timing Role: Central multi-rail power manager generating and sequencing all panel bias voltages and logic supplies. Use Value: Eliminates discrete boost + dual charge pump + dual buck solution-reducing BOM count by ≥12 components and PCB area by 35%. | Use Scenario: Delivering regulated 3.3V/2.5V to timing controller ICs managing gate/source driver timing and image data formatting. IC Role / Device Role / Timing Role: Primary logic voltage regulator with fast transient response to TCON burst-mode current demands. Use Value: Integrated 2.0A Buck1 with soft-start prevents TCON brownout during video scene changes and backlight dimming transitions. |
| VON Flicker Suppression | Large-Panel Bias Sequencing |
Use Scenario: Reducing visible flicker in 55"+ LCD TVs caused by VON voltage instability or timing misalignment. IC Role / Device Role / Timing Role: VON charge pump with embedded slice circuit adjusting pulse width and edge timing in real time. Use Value: Achieves <0.5% flicker ratio per IEC 62375 without external calibration-meeting premium TV certification requirements. | Use Scenario: Ensuring safe, repeatable power-up of 60Hz/120Hz LCD panels where incorrect rail activation order damages gate drivers. IC Role / Device Role / Timing Role: Hardware-enforced sequencing engine coordinating AVDD, VON, VOFF, Buck1, and Buck2 turn-on delays. Use Value: Guarantees correct startup order across temperature and input voltage variation-no firmware or external timer needed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LCD panel power management applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RTQ2136SCGE | Single-chip solution with integrated 4.5A boost + dual charge pumps but no buck controllers; lacks VON slice and automatic sequencing. | Suitable for smaller panels (<32") with simpler bias requirements; requires external sequencer for multi-rail coordination. | Select when cost sensitivity outweighs flicker performance and panel scalability needs. |
| TPS65150RGER | 3-channel IC (boost + VON + VOFF) only; no buck regulators or VON slice; supports up to +32V VON and −8V VOFF. | Targeted at legacy HD panels; cannot replace ISL98602IRAAZ-T7A's full 5-channel functionality in UHD designs. | Choose only for retrofit or low-resolution applications where Buck1/Buck2 integration is unnecessary. |
Compared with RTQ2136SCGE and TPS65150RGER, the ISL98602IRAAZ-T7A uniquely combines five regulated outputs, hardware sequencing, and flicker-reducing VON slicing-making it the only single-package solution qualified for 4K UHD TV production without supplemental ICs.
Availability
ISL98602IRAAZ-T7A is available at Aetrix Electronics and suitable for LCD TV manufacturing, large-panel display module design, and industrial HMI displays requiring stable component supply and long-term lifecycle support.
Supply support for ISL98602IRAAZ-T7A 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
Renesas Electronics Corporation acquired Intersil in 2017 and maintains its high-performance analog and power management portfolio with ISO 9001-certified manufacturing.
The ISL98602IRAAZ-T7A belongs to Renesas' LCD PMIC product line, engineered specifically for high-power, multi-rail bias generation in large-format consumer and commercial displays.
FAQ
What is the maximum supported AVDD output voltage and current for the ISL98602IRAAZ-T7A?
The ISL98602IRAAZ-T7A delivers up to 19V AVDD at 5.5A continuous output current using its integrated high-current boost converter. This specification is validated over the full −40°C to +85°C operating range and supports demanding TFT source driver loads in 4K UHD LCD panels. The ISL98602IRAAZ-T7A achieves this with a dedicated 5.5A internal FET and delay-FET feedback for improved regulation accuracy at the remote panel load point.
Does the ISL98602IRAAZ-T7A include built-in protection features, and which ones are implemented?
Yes, the ISL98602IRAAZ-T7A integrates UVLO, UVP, OVP, OCP, and OTP protection with latched fault recovery. Each protection circuit operates independently per channel-for example, AVDD OVP guards downstream components, while Buck1 OCP responds to short-circuit events. All protections are hardware-based and require only an EN pin toggle to reset. The ISL98602IRAAZ-T7A's comprehensive safety coverage meets IEC 62368-1 requirements for consumer display power systems.
How does the VON slice function in the ISL98602IRAAZ-T7A reduce display flicker?
The ISL98602IRAAZ-T7A's integrated VON slice circuit dynamically adjusts the width and timing of the VON pulse based on real-time panel characteristics and temperature drift-without requiring external calibration. It processes the raw VON charge pump output to generate a precisely shaped gate-on waveform that minimizes charge imbalance across rows. This function is unique to the ISL98602IRAAZ-T7A and directly enables <0.5% flicker ratio in premium LCD TVs.
What is the purpose of the multiple PGND pins (PGND1–PGND4) on the ISL98602IRAAZ-T7A?
The ISL98602IRAAZ-T7A provides four separate power ground terminals-PGND1 through PGND4-to isolate return paths for the boost converter, Buck1 regulator, Buck2 controller, and charge pump circuits. This separation prevents noise coupling between high-dV/dt switching domains and ensures stable regulation across all five output rails. Proper PCB layout routing of each PGND to its respective domain is required to achieve specified ripple and transient performance. The ISL98602IRAAZ-T7A's 40-lead QFN package enables this partitioning without compromising thermal performance.
Can the ISL98602IRAAZ-T7A operate without external MOSFETs for all channels?
The ISL98602IRAAZ-T7A integrates internal FETs for the AVDD boost converter and Buck1 regulator, eliminating external switches for those rails. However, Buck2 is a controller-only stage requiring external high- and low-side MOSFETs. The VON and VOFF charge pumps are fully integrated-including drivers-so no external switches are needed for bias generation. Therefore, the ISL98602IRAAZ-T7A reduces external component count significantly but still requires two external MOSFETs for Buck2 operation.
ISL98602IRAAZ-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Controller/Converter, LCD Supply
- Voltage - Input:
- 9.5V ~ 15V
- Number of Outputs:
- 5
- Voltage - Output:
- Adjustable
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-QFN (6x6)
ISL98602IRAAZ-T7A FAQ
1.How can I place an order for ISL98602IRAAZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL98602IRAAZ-T7A 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 ISL98602IRAAZ-T7A reliable?
The price and inventory of ISL98602IRAAZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL98602IRAAZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL98602IRAAZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL98602IRAAZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL98602IRAAZ-T7A?
ISL98602IRAAZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL98602IRAAZ-T7A 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 ISL98602IRAAZ-T7A?
For technical support, including ISL98602IRAAZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL98602IRAAZ-T7A requirements.
6.How does Aetrix verify that ISL98602IRAAZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL98602IRAAZ-T7A 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 ISL98602IRAAZ-T7A meets industry standards.
7.What is the process for return or replacement of ISL98602IRAAZ-T7A?
All ISL98602IRAAZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL98602IRAAZ-T7A, 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 ISL98602IRAAZ-T7A part is unused and in its original packaging.
Return procedure for ISL98602IRAAZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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