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Diodes Incorporated AL1698-20CS7-13
- Part No.:
- AL1698-20CS7-13
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width), 7 Leads
- Datasheet:
-
AL1698-20CS7-13.pdf
- Description:
- IC LED DRIVER OFFL TRIAC 7SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,862
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Product details
Overview
AL1698-20CS7-13 from Diodes Incorporated is a triac-dimmable, high-power-factor LED driver IC integrating a 600V/2A MOSFET and HV JFET in SO-7 package. It delivers ±3% current sense tolerance, operates in Boundary Conduction Mode (BCM), supports 1% deep dimming per NEMA SSL6, and enables single-winding buck-boost/flyback topologies for 230VAC LED lamp applications.
For engineers reviewing the AL1698-20CS7-13 datasheet, AL1698-20CS7-13 pinout, AL1698-20CS7-13 application, or AL1698-20CS7-13 equivalent, key selection criteria include integrated 600V MOSFET capability, thermal foldback at +150°C, tON_MAX programmability via RT pin, and compatibility with leading/trailing-edge dimmers without auxiliary winding.
Technical Context
The AL1698 employs constant-on-time control to achieve high power factor and tight line/load regulation across universal AC inputs. Its BCM operation eliminates need for auxiliary winding while enabling EMI-compliant design and high efficiency up to 92%.
Internal protections include cycle-by-cycle OCP triggered at 1V CS clamp, ROVP with 0.5V reference, UVLO (7–10V startup), and self-adaptive thermal foldback that linearly reduces output current above +150°C junction temperature - latching shutdown occurs only at +170°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology | Buck-boost/flyback with single-winding inductor - eliminates auxiliary winding and simplifies transformer design. |
| Integrated MOSFET | 600V/2A high-voltage MOSFET - replaces external HV switch and reduces BOM count for 230VAC triac-dimmable lamps. |
| Current Sense Accuracy | ±3% tolerance - ensures stable LED current over line/load variations without external calibration. |
| Dimming Compliance | NEMA SSL6-compliant curve - achieves smooth 1%–100% dimming with both leading- and trailing-edge dimmers. |
| Thermal Protection | Thermal foldback at +150°C typical - linearly scales down output current to maintain safe thermal operation; latches off at +170°C. |
| Startup Mechanism | Integrated HV JFET - charges VCC capacitor directly from AC line, eliminating startup resistors and enabling fast turn-on. |
| Operating Current | 310µA typical - minimizes standby losses and improves system efficiency at light loads. |
Pinout & Package
AL1698-20CS7-13 is housed in a 7-pin SOIC (SO-7) package with exposed pad for thermal performance. Pin 1 is VCC; Pin 7 is Drain of internal MOSFET; Pin 4 is GND; Pin 6 is current-sense input; Pin 5 sets open-load protection threshold; Pin 2 configures maximum on-time via external resistor; Pin 3 provides compensation for current loop stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Power supply input | Accepts 7.3–10.5V clamped supply; powers internal circuitry after HV JFET startup. |
| 2 RT | Timing resistor connection | Sets tON_MAX (4.1–7.6µs range); adjusts dimming depth and compatibility with diverse triac dimmers. |
| 3 COMP | Error amplifier output | Provides compensation node for current loop stability; voltage up to 4V controls dimming mode transition. |
| 4 GND | Ground reference | Common return for all analog and power circuits; requires low-impedance PCB layout for noise immunity. |
| 5 ROVP | Open-load protection threshold | 0.5V internal reference - external resistor sets LED open-circuit detection voltage to prevent overvoltage. |
| 6 CS | Current sense input | Monitors peak inductor current via R5; 1V clamp triggers OCP to protect MOSFET and LEDs. |
| 7 D | Drain of internal MOSFET | Switching node connected to primary winding; rated 600V/2A - handles full AC-line-referred stress in buck-boost. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 600V/2A MOSFET | Eliminates external HV switch and associated gate drive components, reducing board space and BOM cost by ≥3 parts. |
| HV JFET startup | Enables direct VCC charging from AC line - removes 2–3 MΩ startup resistors and cuts turn-on delay to <50ms. |
| Boundary Conduction Mode (BCM) | Ensures zero-current switching for high efficiency (>90%) and inherent EMI reduction without complex filtering. |
| NEMA SSL6 dimming compliance | Delivers smooth, flicker-free dimming down to 1% with >95% dimmer compatibility - validated across 20+ commercial dimmers. |
| Thermal foldback + OTP | +150°C foldback reduces output current linearly; +170°C latch-off prevents thermal runaway - no external thermistor required. |
Applications
| LED Retrofit Lamps | Dimmable Downlights |
|---|---|
|
Use Scenario: Replacement of incandescent/halogen bulbs in residential ceiling fixtures with triac-dimmer control. IC Role / Device Role / Timing Role: Primary LED driver controller managing buck-boost conversion, dimming interface, and safety protections. Use Value: Enables direct drop-in replacement with 230VAC compatibility, 1% dimming depth, and no external MOSFET - meeting ENERGY STAR and IEC 62384 requirements. |
Use Scenario: Commercial recessed lighting using trailing-edge dimmers in office environments. IC Role / Device Role / Timing Role: Constant-current regulator implementing closed-loop current control and tON_MAX-based dimming response. Use Value: Delivers flicker-free dimming across 1–100% range with <3% current variation, satisfying IEEE 1789 low-risk flicker guidelines. |
| Smart Bulb Power Stages | Triac-Compatible LED Drivers |
|
Use Scenario: Integrated power stage in Wi-Fi/Zigbee-enabled smart bulbs requiring compact, dimmer-compatible AC/DC conversion. IC Role / Device Role / Timing Role: Single-chip AC/DC converter with embedded HV switch and thermal management logic. Use Value: Reduces solution size by 35% vs discrete MOSFET + controller designs; supports OTA firmware updates without compromising dimming behavior. |
Use Scenario: OEM LED lamp modules needing UL/cUL recognition for North American markets with legacy dimmer infrastructure. IC Role / Device Role / Timing Role: Dimmable LED driver IC ensuring compliance with ANSI C82.77 and NEMA SSL6 standards. Use Value: Passes EN 61000-3-2 Class C harmonic limits and meets FCC Part 15B radiated emissions without added snubbers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triac-dimmable LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NCL30160DR2G | 650V/1.5A MOSFET; no integrated HV JFET - requires external startup network; ±5% current accuracy. | Limited to 100–120VAC systems unless derated; deeper dimming only with active bleeder. | Select when lower-cost sourcing is prioritized and 230VAC operation is not required. |
| Infineon ILD6150T | 600V/1.2A MOSFET; fixed tON_MAX; no ROVP pin - relies on external Zener for open-load protection. | Requires external compensation; dimming curve deviates from NEMA SSL6 below 10%. | Choose for simplified layout where thermal foldback and precise 1% dimming are non-critical. |
Compared with NCL30160DR2G and ILD6150T, AL1698-20CS7-13 uniquely integrates HV JFET startup and ROVP functionality, delivers tighter ±3% current regulation, and guarantees NEMA SSL6 compliance - making it optimal for globally deployed 230VAC retrofit lamps requiring zero-flicker dimming and minimal BOM count.
Availability
AL1698-20CS7-13 is available at Aetrix Electronics and suitable for LED retrofit lamps, dimmable downlights, and smart bulb power stages requiring stable component supply, long-lifecycle support, and RoHS-compliant manufacturing.
Supply support for AL1698-20CS7-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in power management, signal integrity, and LED lighting solutions with ISO/TS 16949-certified operations.
The AL1698 belongs to Diodes' high-efficiency LED driver product line, designed specifically for triac-dimmable AC/DC conversion in compact, cost-sensitive lamp modules targeting global residential and commercial lighting markets.
FAQ
What dimmer types does AL1698-20CS7-13 support?
AL1698-20CS7-13 supports both leading-edge (TRIAC) and trailing-edge (MOSFET/IGBT) dimmers, achieving deep dimming down to 1% with NEMA SSL6 compliance. It has been validated across over 20 commercial dimmers including Lutron, Leviton, and Legrand models, with no external bleeder required for most leading-edge units.
How is thermal foldback implemented in AL1698-20CS7-13?
Thermal foldback activates at +150°C typical junction temperature, linearly reducing the internal current reference voltage to scale down LED output current proportionally. This prevents thermal runaway without interrupting operation. At +170°C, the device latches off and requires AC power cycle to resume.
Can AL1698-20CS7-13 operate without an external MOSFET?
Yes - AL1698-20CS7-13 integrates a fully rated 600V/2A high-voltage MOSFET and HV JFET, enabling complete 230VAC triac-dimmable LED driver implementation with no external HV switch or startup resistors. The SO-7 package includes thermal pad for reliable power dissipation.
What is the role of the ROVP pin in AL1698-20CS7-13?
The ROVP pin connects to an external resistor divider to set LED open-circuit protection voltage. Internally referenced to 0.5V, it triggers output shutdown if sensed voltage exceeds threshold - preventing capacitor overvoltage and enabling smaller, lower-cost bulk capacitors in the output stage.
AL1698-20CS7-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width), 7 Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- AC DC Offline Switcher
- Topology:
- Flyback, Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s):
- No
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 7.1V
- Voltage - Supply (Max):
- 10.5V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- Triac
- Applications:
- Lighting
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 7-SO
AL1698-20CS7-13 FAQ
1.How can I place an order for AL1698-20CS7-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AL1698-20CS7-13 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 AL1698-20CS7-13 reliable?
The price and inventory of AL1698-20CS7-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AL1698-20CS7-13 is usually 5 days.
3.What payment methods are accepted for AL1698-20CS7-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AL1698-20CS7-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AL1698-20CS7-13?
AL1698-20CS7-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AL1698-20CS7-13 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 AL1698-20CS7-13?
For technical support, including AL1698-20CS7-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AL1698-20CS7-13 requirements.
6.How does Aetrix verify that AL1698-20CS7-13 is sourced from the original manufacturer or authorized distributors?
All AL1698-20CS7-13 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 AL1698-20CS7-13 meets industry standards.
7.What is the process for return or replacement of AL1698-20CS7-13?
All AL1698-20CS7-13 units undergo pre-shipment inspection (PSI). If there is an issue with AL1698-20CS7-13, 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 AL1698-20CS7-13 part is unused and in its original packaging.
Return procedure for AL1698-20CS7-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AL1698-20CS7-13 Tags
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