My Inquiry
My Account
Renesas ISL98602IRAAZ-T
- Part No.:
- ISL98602IRAAZ-T
- Manufacturer:
- Renesas
- Category:
- Special Purpose Regulators
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
ISL98602IRAAZ-T.pdf
- Description:
- IC REG CTRLR/CONV 5OUT 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,904
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL98602IRAAZ-T from Renesas Electronics (formerly Intersil) is a 5-channel integrated LCD panel power supply IC featuring a 5.5A boost converter for AVDD up to 19V, dual synchronous buck regulators (Buck1: 3.3V/2.5V, Buck2 controller: 0.9–2.0V), VON/VOFF charge pumps (36V/−10V, 120mA each), integrated VON slice circuitry, and Power Good signaling - deployed in large-panel LCD TV backlights and timing controller interfaces.
For engineers reviewing the ISL98602IRAAZ-T datasheet, ISL98602IRAAZ-T pinout, ISL98602IRAAZ-T application, or ISL98602IRAAZ-T equivalent, key selection criteria include AVDD boost current capability (5.5A), VON slicing functionality for flicker reduction, 1.3MHz fixed-frequency operation, thermal performance in 6x6 QFN-40, and coordinated start-up sequencing across five regulated outputs.
Technical Context
The ISL98602IRAAZ-T integrates five independent power rails with hardware-coordinated sequencing: a high-current boost converter (AVDD) uses feedback from the far side of the delay FET for improved regulation and includes OVP; Buck1 employs internal 2.3A FETs and soft-start, while Buck2 is a controller-only stage requiring external MOSFETs with integrated OCP.
VON and VOFF charge pumps operate at full 1.3MHz switching frequency with integrated drivers; VON output passes through on-die slicing circuitry to suppress AC coupling-induced flicker, and the Power Good signal enables TCON after all rails stabilize - all within a single 40-pin QFN package rated for −40°C to +85°C ambient operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 9.5V to 15.0V - supports standard 12V LCD panel main rail with ±10% tolerance margin. |
| AVDD Boost Output | Up to 19V @ 5.5A - powers TFT source driver ICs requiring high-voltage analog supply with integrated delay switch. |
| VON Charge Pump | +36V @ 120mA with integrated slice circuit - reduces display flicker by conditioning high-side gate drive voltage waveform. |
| VOFF Charge Pump | −10V @ 120mA - supplies negative gate bias for TFT common electrode control in active-matrix LCDs. |
| Buck1 Output | 3.3V or 2.5V @ 2.0A peak - powers logic circuits (TCON, microcontrollers) with internal synchronous FETs and soft-start. |
| Buck2 Output Range | 0.9V to 2.0V - programmable logic voltage for digital core domains, implemented as controller driving external MOSFETs. |
| Switching Frequency | 1.3MHz fixed - enables compact external magnetics and low-profile ceramic capacitors; no external frequency setting required. |
| Operating Temperature | −40°C to +85°C ambient - qualified for consumer LCD TV chassis environments with natural convection cooling. |
Pinout & Package
Package: 40-lead, 6mm × 6mm, 0.5mm pitch 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. |
| AVDD | Boost Output | Main analog supply rail for LCD source drivers; connects directly to AVDD distribution network. |
| SW1 / SW2 | Buck Switch Nodes | High-frequency switching nodes for Buck1 and Buck2 power stages; require low-ESR ceramic output caps and proper layout isolation. |
| PHASE1 / PHASE2 | Buck Gate Drive Outputs | Drive external high-side MOSFET gates in Buck2 controller stage; require bootstrap capacitor and gate resistor tuning. |
| CPG / DRVP / DRVN | VON/VOFF Charge Pump Terminals | Interface to external flying capacitors and diodes; CPG is common pump node, DRVP/DRVN drive high-side/low-side switches. |
| GHON / GHC / GHD | VON Slice Control Outputs | Deliver sliced VON waveform to gate drivers; GHON = high-side ON, GHC = common, GHD = high-side discharge path. |
| PGOOD | Power Good Signal | Open-drain output asserted after all regulated outputs meet accuracy and timing thresholds - used to enable TCON IC. |
| PGND1–PGND4 | Power Ground Returns | Dedicated ground pins per power stage to minimize noise coupling between boost, buck, and charge pump sections. |
Key Features
| Feature | Design Value |
|---|---|
| VON Slice Circuitry | On-die waveform shaping reduces AC coupling-induced flicker in large-panel LCDs without external components. |
| Coordinated Start-Up Sequencing | Hardware-controlled ramp timing ensures AVDD reaches target before VON/VOFF and logic rails - prevents latch-up in TFT gate drivers. |
| Far-Side AVDD Feedback | Compensates for IR drop across delay FET, improving load regulation accuracy at remote display module locations. |
| Integrated Protection Suite | UVLO, UVP, OVP, OCP, and OTP are all implemented in silicon - eliminates need for discrete protection ICs or firmware monitoring. |
| Thermal Pad QFN-40 | Exposed die paddle enhances heat dissipation in space-constrained LCD TV chassis; requires soldered thermal via array to inner ground plane. |
Applications
| LCD TV Panel Power | TFT Source Driver Supply |
|---|---|
Use Scenario: Powering 4K UHD LCD panels in consumer television sets with integrated timing controller (TCON) and dual-gate architecture. IC Role / Device Role / Timing Role: Central multi-rail power management IC delivering AVDD, VON, VOFF, and logic voltages with synchronized startup and flicker-suppressed VON slicing. Use Value: Eliminates six discrete DC/DC converters and external VON filtering components, reducing BOM count and PCB area by >40%. | Use Scenario: Supplying high-current analog rails to column driver ICs in large-format industrial displays (e.g., digital signage, medical monitors). IC Role / Device Role / Timing Role: Generates stable 19V AVDD with <±1.5% regulation and fast transient response to handle dynamic video content load steps. Use Value: 5.5A integrated boost FET sustains peak currents during white-field scenes without derating or thermal throttling. |
| TCON Interface Power | Flicker-Sensitive Display Systems |
Use Scenario: Providing sequenced, monitored power to timing controller ICs in smart TV platforms requiring precise power-up timing and fault reporting. IC Role / Device Role / Timing Role: Delivers 3.3V/2.5V logic rails and asserts PGOOD only after all outputs stabilize within spec - enabling safe TCON initialization. Use Value: Hardware-based sequencing removes dependency on firmware boot delays, cutting system startup time by ~120ms. | Use Scenario: Driving high-resolution retail kiosks and broadcast monitors where image stability under varying ambient lighting is critical. IC Role / Device Role / Timing Role: Applies VON slicing to condition gate drive waveform, suppressing low-frequency luminance modulation that causes visible flicker. Use Value: Integrated slicing eliminates need for external RC networks or dedicated flicker-reduction ICs, improving long-term reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LCD panel power supply applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RTQ2132B-QT | Single-chip solution with 4-channel output (no VON slice); lower AVDD current (3.5A); 2.1MHz switching. | Lacks flicker-reduction circuitry; suited for smaller panels (<32") with simpler gate driver requirements. | Select when VON slicing is unnecessary and board space favors higher-frequency operation with smaller inductors. |
| TPS65150RGER | 3-channel (AVDD/VON/VOFF) with external buck controllers; no integrated Buck1/Buck2; 1.2MHz operation. | Requires two external synchronous buck ICs for logic rails; lacks automatic sequencing and PGOOD coordination. | Choose when design flexibility for logic rail voltages outweighs integration benefits and system-level timing control. |
Compared with RTQ2132B-QT and TPS65150RGER, the ISL98602IRAAZ-T uniquely combines five regulated outputs, hardware-enforced sequencing, flicker-suppressing VON slicing, and single-package thermal management - making it optimal for large-panel LCD TVs where display quality and BOM simplicity are prioritized.
Availability
ISL98602IRAAZ-T is available at Aetrix Electronics and suitable for LCD TV manufacturing, industrial display systems, and medical monitor production requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for ISL98602IRAAZ-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
Renesas Electronics Corporation is a global semiconductor leader formed from the merger of Renesas Technology and NEC Electronics, specializing in microcontrollers, analog, and power management solutions.
The ISL98602IRAAZ-T belongs to Renesas' legacy Intersil LCD power management portfolio, engineered specifically for high-reliability, multi-rail power delivery in large-format LCD panels with stringent flicker and sequencing requirements.
FAQ
What is the primary function of the ISL98602IRAAZ-T in LCD TV systems?
The ISL98602IRAAZ-T serves as a fully integrated power management IC for large-panel LCD TVs, generating five critical voltages: AVDD (up to 19V), VON (+36V), VOFF (−10V), and two logic rails (3.3V/2.5V and 0.9–2.0V). Its integrated VON slice circuitry actively suppresses display flicker, and its hardware-coordinated start-up sequencing ensures reliable TCON enablement. The ISL98602IRAAZ-T replaces multiple discrete regulators and external flicker-reduction components in modern LCD TV designs.
Does the ISL98602IRAAZ-T support adjustable output voltages for its buck regulators?
The ISL98602IRAAZ-T's Buck1 output is factory-configured for either 3.3V or 2.5V and is not user-adjustable; its feedback is internally set. Buck2 is a controller stage with an externally programmable output range of 0.9V to 2.0V, set via resistor divider on the FBB2 pin. Neither buck stage supports digital voltage scaling or I²C adjustment - voltage selection is strictly analog and hardware-defined. The ISL98602IRAAZ-T datasheet specifies fixed configurations per variant, and ISL98602IRAAZ-T corresponds to the 3.3V/2.5V Buck1 option.
How does the VON slice function in the ISL98602IRAAZ-T improve display performance?
The VON slice function in the ISL98602IRAAZ-T conditions the raw +36V VON charge pump output into a shaped, low-ripple waveform delivered via GHON/GHC/GHD terminals. This reduces low-frequency AC coupling into TFT gate electrodes, which is a primary cause of visible flicker in large-panel LCDs under static or slow-changing content. Unlike external RC filtering, the ISL98602IRAAZ-T implements this slicing in silicon with matched timing and temperature stability - eliminating drift-related flicker over product lifetime.
What thermal management considerations apply to the ISL98602IRAAZ-T in high-power operation?
The ISL98602IRAAZ-T uses a 6×6 mm QFN package with an exposed thermal pad requiring minimum 9 vias (0.3mm diameter) to an inner-layer ground plane for effective heat dissipation. At full AVDD load (5.5A), junction temperature rise exceeds 40°C above ambient without adequate copper area; recommended PCB layout includes ≥250 mm² of 2-oz copper connected to the thermal pad. The ISL98602IRAAZ-T incorporates thermal shutdown (OTP) at 150°C, but sustained operation above 125°C ambient requires forced airflow or heatsink integration.
Can the ISL98602IRAAZ-T be used in automotive LCD displays?
The ISL98602IRAAZ-T is specified for −40°C to +85°C ambient operation and meets industrial-grade reliability standards, but it is not AEC-Q200 qualified and lacks automotive-specific features such as extended temperature screening, enhanced ESD robustness (HBM >8kV), or fault-reporting diagnostics required for automotive infotainment displays. While functionally capable in controlled cabin environments, Renesas does not approve the ISL98602IRAAZ-T for automotive use. For automotive applications, designers should select AEC-Q100 qualified alternatives like the RAJ series or contact Renesas for automotive-grade derivatives of the ISL98602IRAAZ-T.
ISL98602IRAAZ-T 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-T FAQ
1.How can I place an order for ISL98602IRAAZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL98602IRAAZ-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 ISL98602IRAAZ-T reliable?
The price and inventory of ISL98602IRAAZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL98602IRAAZ-T is usually 5 days.
3.What payment methods are accepted for ISL98602IRAAZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL98602IRAAZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL98602IRAAZ-T?
ISL98602IRAAZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL98602IRAAZ-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 ISL98602IRAAZ-T?
For technical support, including ISL98602IRAAZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL98602IRAAZ-T requirements.
6.How does Aetrix verify that ISL98602IRAAZ-T is sourced from the original manufacturer or authorized distributors?
All ISL98602IRAAZ-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 ISL98602IRAAZ-T meets industry standards.
7.What is the process for return or replacement of ISL98602IRAAZ-T?
All ISL98602IRAAZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL98602IRAAZ-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 ISL98602IRAAZ-T part is unused and in its original packaging.
Return procedure for ISL98602IRAAZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL98602IRAAZ-T Tags
-
TPS51206DSQR
Texas Instruments
-
TPS51200DRCR
Texas Instruments
-
TPS51200DRCT
Texas Instruments
-
TPS62740DSSR
Texas Instruments
-
TPS51100DGQR
Texas Instruments
-
NCP51200MNTXG
onsemi
-
NCP51400MNTXG
onsemi
-
RT9026GSP
Richtek USA Inc.
-
LP2998MRX/NOPB
Texas Instruments
-
TPS51200QDRCRQ1
Texas Instruments
-
DPA423GN-TL
Power Integrations
-
LM10011SD/NOPB
Texas Instruments
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
