AP1681MTR-G1

AP1681MTR-G1 Datasheet

Off-line Primary Side Regulation Controller for Dimmable LED Driver AP1681

Part	Datasheet
AP1681MTR-G1	AP1681MTR-G1 (pdf)

PDF Datasheet Preview
Preliminary Datasheet Off-line Primary Side Regulation Controller for Dimmable LED Driver AP1681 The AP1681 is a powerful high performance AC/DC power supply controller for dimmable LED lighting applications. The device uses Pulse Frequency Modulation PFM technology to regulate output current according to the wall dimmer conduct angle. The AP1681 achieves wide dimming range without visible flicker and is compatible with diverse dimmers. The AP1681 features low start-up current, low operation current and high efficiency. It also has rich protection functions including over voltage, short circuit, over current and over temperature protections. The AP1681 is available in SOIC-8 package. • Primary Side Control for Output Current Regulation Without Opto-coupler and Secondary CV/CC Control Circuitry • Adjustable Full Brightness and Full Dimming Setting • Wide Dimming Range From 100% to 1%, Down to Full Darkness • Adjustable Dimming Curve for Human Eye Sensitivity • No Visible Flicker • Connectivity with Analog / Digital / Hybrid Dimming Mode • Built-in Acceleration Start • Adjustable Soft-start Timing • CV Open-load Regulation and Reload Detection • Over Voltage and Short Circuit Protection • Over Temperature Protection • Over Current Protection • Maximum Switch On-time Protection • Dimmable LED Driver Suit for Leading-edge Dimmer, Trailing-edge Dimmer, R Type, R-C Type or R-L Type Dimmer SOIC-8 Figure Package Type of AP1681 BCD Semiconductor Manufacturing Limited Preliminary Datasheet Off-line Primary Side Regulation Controller for Dimmable LED Driver AP1681 Pin Configuration M Package SOIC-8 DIM 1 RD 2 RI 3 FB 4 8 VCC 7 OUT 6 GND 5 CS Figure Pin Configuration of AP1681 Top View Pin Description Pin Number 1 2 3 4 5 6 7 8 Pin Name Function Dimming control signal input Full brightness level setting Full dimming level setting The feedback voltage sensing from the auxiliary winding Primary current sensing Ground. Current return for gate driver and control circuits of the IC Gate driver output Supply voltage of gate driver and control circuits of the IC BCD Semiconductor Manufacturing Limited 2 Preliminary Datasheet Off-line Primary Side Regulation Controller for Dimmable LED Driver AP1681 Functional Block Diagram FB_OVP COMP SHORT_OCP Ordering Information AP1681 Circuit Type Package M SOIC-8 G1 Green TR Tape & Reel Blank Tube Package SOIC-8 Temperature Range -40 to 105°C AP1681M-G1 AP1681MTR-G1 Marking ID 1681M-G1 1681M-G1 Packing Type Tube Tape & Reel BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant and green. BCD Semiconductor Manufacturing Limited 4 Preliminary Datasheet Off-line Primary Side Regulation Controller for Dimmable LED Driver AP1681 Absolute Maximum Ratings Note 1 Parameter Power Supply Voltage Driver Output Current Voltage at RD, RI, DIM, CS FB Input Voltage Operating Junction Temperature Storage Temperature Lead Temperature Soldering, 10 sec Power Dissipation at TA=50°C Thermal Resistance Junction-to-Ambient ESD Machine Model ESD Human Body Model VCC IOUT VRD, VRI, VDIM, VCS VFB TJ TSTG TLEAD PD Value to 30 ±300 to 7 -40 to 10 150 -65 to 150 300 150 200 4000 Unit V mA V ºC ºC ºC W °C/W V Note 1 Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied. Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability. Recommended Operating Conditions Parameter Power Supply Voltage Ambient Temperature VCC TA Unit V ºC BCD Semiconductor Manufacturing Limited 5 Preliminary Datasheet

PDF Datasheet Preview

Preliminary Datasheet

Off-line Primary Side Regulation Controller for Dimmable LED Driver AP1681

The AP1681 is a powerful high performance AC/DC power supply controller for dimmable LED lighting applications. The device uses Pulse Frequency Modulation PFM technology to regulate output current according to the wall dimmer conduct angle. The AP1681 achieves wide dimming range without visible flicker and is compatible with diverse dimmers.

The AP1681 features low start-up current, low operation current and high efficiency. It also has rich protection functions including over voltage, short circuit, over current and over temperature protections.

The AP1681 is available in SOIC-8 package.
• Primary Side Control for Output Current Regulation Without Opto-coupler and Secondary CV/CC Control Circuitry
• Adjustable Full Brightness and Full Dimming Setting
• Wide Dimming Range From 100% to 1%, Down to Full Darkness
• Adjustable Dimming Curve for Human Eye Sensitivity
• No Visible Flicker
• Connectivity with Analog / Digital / Hybrid

Dimming Mode
• Built-in Acceleration Start
• Adjustable Soft-start Timing
• CV Open-load Regulation and Reload Detection
• Over Voltage and Short Circuit Protection
• Over Temperature Protection
• Over Current Protection
• Maximum Switch On-time Protection
• Dimmable LED Driver Suit for Leading-edge Dimmer, Trailing-edge Dimmer, R Type, R-C Type or R-L Type Dimmer

SOIC-8

Figure Package Type of AP1681 BCD Semiconductor Manufacturing Limited

Preliminary Datasheet

Off-line Primary Side Regulation Controller for Dimmable LED Driver AP1681

Pin Configuration

M Package SOIC-8

DIM 1 RD 2 RI 3 FB 4
8 VCC 7 OUT 6 GND 5 CS

Figure Pin Configuration of AP1681 Top View

Pin Description

Pin Number
1 2 3 4 5 6 7 8

Pin Name

Function

Dimming control signal input

Full brightness level setting

Full dimming level setting

The feedback voltage sensing from the auxiliary winding

Primary current sensing

Ground. Current return for gate driver and control circuits of the IC

Gate driver output

Supply voltage of gate driver and control circuits of the IC

BCD Semiconductor Manufacturing Limited 2

Preliminary Datasheet

Off-line Primary Side Regulation Controller for Dimmable LED Driver AP1681

Functional Block Diagram

FB_OVP

COMP

SHORT_OCP
Ordering Information

AP1681

Circuit Type

Package M SOIC-8

G1 Green

TR Tape & Reel Blank Tube

Package

SOIC-8

Temperature Range
-40 to 105°C

AP1681M-G1 AP1681MTR-G1

Marking ID
1681M-G1 1681M-G1

Packing Type

Tube Tape & Reel

BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant and green.

BCD Semiconductor Manufacturing Limited 4

Preliminary Datasheet

Off-line Primary Side Regulation Controller for Dimmable LED Driver AP1681

Absolute Maximum Ratings Note 1

Parameter

Power Supply Voltage Driver Output Current

Voltage at RD, RI, DIM, CS

FB Input Voltage Operating Junction Temperature Storage Temperature Lead Temperature Soldering, 10 sec Power Dissipation at TA=50°C Thermal Resistance Junction-to-Ambient ESD Machine Model ESD Human Body Model

VCC IOUT VRD, VRI, VDIM, VCS VFB TJ TSTG TLEAD PD

Value
to 30 ±300
to 7 -40 to 10
150 -65 to 150
300 150 200 4000

Unit

V mA V ºC ºC ºC W °C/W V

Note 1 Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied. Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.

Recommended Operating Conditions

Parameter

Power Supply Voltage Ambient Temperature

VCC TA

Unit

V ºC

BCD Semiconductor Manufacturing Limited 5

Preliminary Datasheet

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Datasheet ID: AP1681MTR-G1 509816