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Diodes Incorporated AP1695EV4

Name: AP1695EV4
Brand: Diodes Incorporated
SKU: AP1695EV4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AP1695EV4

Manufacturer:: Diodes Incorporated

Category:: LED Driver Evaluation Boards

Package:

Datasheet:: AP1695EV4.pdf

Description:: EVAL BOARD FOR AP1695

Quantity:: RFQ Add To RFQ list

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Inventory:2,590

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Product details

Overview

AP1695 from Diodes Incorporated is a discontinued AC/DC LED driver IC operating in Boundary Conduction Mode (BCM), integrating a 500V/2A MOSFET, delivering ±2% output current accuracy, PF > 0.9 and THD < 30%, and supporting deep 1% dimming compliant with NEMA SSL6 for mains-dimmable LED lighting systems.

For engineers reviewing the AP1695 datasheet, AP1695 pinout, AP1695 application, or AP1695 equivalent, this page provides verified technical context, SO-7 package mapping, valley-switching timing behavior, protection thresholds (UVLO = 14.5 V typ, VCC_OVP = 29 V typ), and dimming compatibility with leading/trailing-edge TRIAC dimmers.

Technical Context

The AP1695 implements constant-on-time (COT) control within each AC half-cycle to maintain high power factor without feedback optocouplers. Its valley-switching detection uses FB pin sensing of auxiliary winding voltage zero-crossing with 1 µs delay to minimize turn-on loss.

It operates in BCM to reduce EMI and eliminate loop compensation components. Protection logic includes latched over-temperature shutdown at +150°C, hiccup-mode response to output short/open faults, and internal UVLO (14.5 V start, 6.5 V min operating) with 4 V delatch.

Key Specifications

Parameter	Value and Actual Design Meaning
Topology	Boundary Conduction Mode (BCM) buck, buck-boost, or flyback LED driver controller
Integrated MOSFET	500 V / 2 A drain-source rating, enabling ≤10 W non-isolated designs without external switch
Power Factor & THD	PF > 0.9 and THD < 30% at full load, meeting IEC 61000-3-2 Class C harmonic limits
Dimming Compliance	Supports leading/trailing-edge dimmers; achieves 1% minimum dim level with NEMA SSL6-compliant curve
Current Regulation	±2% output current accuracy on final test board; no secondary-side feedback required
Protections	UVLO, VCC OVP (29 V), FB OVP (4–7.5 V), over-temperature latch (+150°C), output short/open hiccup mode
Startup & Operating Current	20 µA max startup current; 900–1300 µA operating current enables low-loss bias design

Pinout & Package

AP1695 is housed in a 7-pin SOIC (SO-7) package with gull-wing leads, 1.27 mm pitch, and RoHS/Green compliance. Thermal resistance θ_JA = 160 °C/W supports operation up to +105°C ambient.

Pin/Terminal	Circuit Role	Design Meaning
1 S	Internal MOSFET source	Return path for current sense and gate drive; connects to CS resistor ground reference
2 CS	Current sense input	Monitors voltage across R_CS; triggers cycle termination when V_CS = 1 V (typ)
3 RI	Initial on-time setting	Bias resistor sets t_{ONP_INITIAL} ≈ 80 × R₁ × 10⁻¹² s; prevents overshoot at startup
4 GND	Power and signal ground	Common reference for CS, FB, and internal logic; requires low-impedance PCB plane
5 FB	Feedback voltage input	Senses auxiliary winding voltage for valley detection and output overvoltage protection (CV threshold = 4 V typ)
6 VCC	Supply voltage input	Powers gate driver and control circuitry; internal clamp at 31 V; UVLO active below 13 V
7 Drain	Internal MOSFET drain	High-side switch node; rated 500 V blocking; connects directly to bulk capacitor or bridge rectifier output

Key Features

Feature	Design Value
Valley-switching control	Reduces switching loss by triggering MOSFET turn-on at drain voltage minima via FB-sensed auxiliary winding
Optocoupler-free regulation	Eliminates secondary-side feedback components and associated compensation network, reducing BOM count and layout area
Integrated 500 V MOSFET	Enables compact, cost-effective ≤10 W LED drivers without external HV switch or gate driver
NEMA SSL6 dimming curve	Ensures smooth, flicker-free light output down to 1% intensity with standard residential dimmers
Passive EMI reduction	BCM operation inherently lowers high-frequency noise; no Y-capacitor or common-mode choke required for EN 55022 Class B

Applications

Residential Dimmable Downlights

Commercial Track Lighting

Use Scenario: 8–10 W GU10 or MR16 retrofit lamps powered directly from 120/230 VAC with TRIAC dimmers.

IC Role / Device Role / Timing Role: Primary-side constant-current controller implementing BCM valley switching and dimmer phase-angle decoding.

Use Value: Delivers flicker-free dimming from 1% to 100% while maintaining PF > 0.9 and THD < 30% across line voltage variations.

Use Scenario: 6–9 W track heads in retail environments requiring consistent color rendering and smooth dimming response.

IC Role / Device Role / Timing Role: Standalone LED driver IC managing buck topology with integrated MOSFET and passive bleeder interface.

Use Value: Enables compact, thermally efficient design with no optocoupler or secondary regulation, reducing bill-of-materials cost by ≥30%.

LED Bulbs with Leading-Edge Dimmers

Dimmable LED Tubes (T8/T5)

Use Scenario: A19 or PAR30 screw-base bulbs compatible with legacy incandescent dimmers in residential installations.

IC Role / Device Role / Timing Role: AC/DC PFM controller using RI-set initial on-time and FB-based valley detection to sustain regulation during chopped AC cycles.

Use Value: Achieves deep dimming without pop-on/pop-off artifacts and meets ENERGY STAR Lamps V2.1 standby power (<0.5 W) requirements.

Use Scenario: 120 cm T8 LED tubes replacing fluorescent fixtures in offices, using existing wall-mounted dimmers.

IC Role / Device Role / Timing Role: High-efficiency buck-boost driver IC providing constant current despite wide input voltage range (100–305 VAC).

Use Value: Supports universal input operation and delivers ±2% current accuracy over temperature, ensuring uniform brightness across multi-lamp installations.

Equivalent & Alternatives

The following parts are listed as comparable options for similar LED driver controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
AP1695-20C	Direct replacement with updated thermal derating and enhanced ESD robustness (HBM ±3000 V); same SO-7 pinout and functional spec	Identical dimming performance and protection set; validated for new production builds post-2017	Select for new designs requiring active supply and full Diodes Inc. support lifecycle
BP5758D	External MOSFET required; higher system efficiency (>92%) but needs loop compensation and optocoupler for CC accuracy	Better suited for >15 W applications; lacks native NEMA SSL6 curve shaping	Choose when scaling beyond 10 W or requiring tighter thermal margin at full load

Compared with AP1695-20C, the original AP1695 offers identical functionality but lacks updated ESD and thermal specs; versus BP5758D, it trades off external component count and dimming compliance for lower peak power capability and simpler layout.

Availability

AP1695 is available at Aetrix Electronics and suitable for residential LED retrofits, commercial track lighting, dimmable LED tubes, and GU10/MR16 lamp designs requiring stable component supply during legacy product maintenance cycles.

Supply support for AP1695 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 lighting solutions for industrial, consumer, and automotive markets.

The AP1695 belongs to Diodes' LED driver IC product line, engineered specifically for cost-sensitive, high-PF, dimmable AC/DC LED lighting where integration, reliability, and regulatory compliance are critical.

FAQ

Is AP1695 still recommended for new designs?

No - Diodes Incorporated officially discontinued AP1695 and recommends AP1695-20C as its direct replacement. The -20C variant features improved ESD tolerance (HBM ±3000 V vs. ±2000 V), updated thermal derating, and full production support. New designs should use AP1695-20C to ensure long-term supply and technical documentation access.

What dimmer types does AP1695 support?

AP1695 supports both leading-edge (TRIAC-based) and trailing-edge (electronic low-voltage) dimmers. It achieves 1% minimum dim level with smooth, NEMA SSL6-compliant dimming curves across conduction angles from 10° to 170°, and maintains PF > 0.9 even at 10% dim level in typical buck configurations.

Can AP1695 operate without an auxiliary winding?

No - the FB pin requires voltage from an auxiliary winding to enable valley-switching detection and output overvoltage protection. Removing the auxiliary winding disables valley-on control, degrades efficiency, and eliminates FB-based OVP. The auxiliary winding also supplies VCC after startup, replacing the initial high-voltage start-up resistor.

What is the maximum output power achievable with AP1695?

AP1695 supports up to 10 W in non-isolated buck topologies with output currents under 200 mA, limited by its integrated 500 V / 2 A MOSFET and thermal constraints in SO-7 packaging. At 105°C ambient, derating is required above ~7 W; actual power depends on heatsinking, layout, and transformer design per the datasheet inductance equations.

AP1695EV4 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Packaging:: Box

Product Status:: Active

Current - Output / Channel:: 400mA

Outputs and Type:: 1 Non-Isolated Output

Voltage - Output:: 12V

Features:: Dimmable

Voltage - Input:: 7V ~ 25V

Contents:: Board(s)

Utilized IC / Part:: AP1695

AP1695EV4 FAQ

1.How can I place an order for AP1695EV4 through Aetrix?

Please submit a Request for Quotation (RFQ) for AP1695EV4 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 AP1695EV4 reliable?

The price and inventory of AP1695EV4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1695EV4 is usually 5 days.

3.What payment methods are accepted for AP1695EV4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1695EV4 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AP1695EV4?

AP1695EV4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AP1695EV4 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 AP1695EV4?

For technical support, including AP1695EV4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1695EV4 requirements.

6.How does Aetrix verify that AP1695EV4 is sourced from the original manufacturer or authorized distributors?

All AP1695EV4 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 AP1695EV4 meets industry standards.

7.What is the process for return or replacement of AP1695EV4?

All AP1695EV4 units undergo pre-shipment inspection (PSI). If there is an issue with AP1695EV4, 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 AP1695EV4 part is unused and in its original packaging.

Return procedure for AP1695EV4:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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