DIODES INCORPORATED Issue Number │001
February 2015
New Product AnnouncementAP1688
Universal Input Voltage, High Power Factor and High Efficiency LED Buck Controller
The AP1688 is a high power factor, constant current buck controller for universal input voltage applications. The buck controller operates under Boundary Conduction Mode (BCM) to achieve high efficiency, low electromagnetic interference (EMI) and low total harmonic distortion (THD).
Open loop control is adopted for the AP1688, which achieves excellent line and load regulation.
AP1688 features fast start-up, low start-up current, low operation current and high efficiency.
It also has comprehensive protection features including under-voltage lock out (UVLO), over-voltage protection (OVP), over-current protection (OCP), over- protection (OTP) and LED short and open protection.
The Diodes' Advantage
The AP1688 provides a simple cost effective solution for general illumination LED lamps and LED Tubes.
Universal High Power Factor Buck Solution
Low cost BOM solution
Built-in UVLO, OVP, OCP, OTP, LED short and open Protection
Provides full protection functions
Good line regulation and load regulation
Solution can meet universal input voltage with full load applications
Boundary Conduction Mode (BCM) Operation
Achieves higher efficiency and EMI reduction using fewer components
High Efficiency Up to 90%
High efficiency saves energy
Applications
LED tubes
Retrofit Par38
Down light
www.diodes.com
Issue Number │001
February 2015
New Product AnnouncementAP1688
Typical Application: LED TubesL1
C1
VAC
BD1
+
C2
TVS
R1
L2
D2 R2
D1 VOUT
C4
T1 -
C3 8 FB 5 R3
VCC
R5 R4 Q1
2
R7
C5 R6
VS
3 VA C6
GND
6
7
OUT
4
CS
RCS
Diodes Offline LED DriversPart Number | Max. Output Voltage | Max. LED Current | current accuracy | Efficiency | Operating temp range | High Power Factor | Triac Dimmable | Topology | Package Outline | Comments |
Part Number | V | mA | % | % | °C | High Power Factor | Triac Dimmable | Topology | Package Outline | Comments |
AP1684A | 80 | External MOSFET | +/-2 | 90 | -40 ~ 105 | Y | N | Buck | SO-8 | External MOS For >10W lamps |
AP1685 | 80 | 200 | +/-2 | 90 | -40 ~ 105 | Y | N | Buck | SO-7 | Internal MOS for |
AP1688 | 80 | External MOSFET | +/-3 | 90 | -40 ~ 105 | Y | N | Buck | SO-8 | External MOS For >10W lamps |
To find out more information:
LED Driver Web page http://diodes.com/catalog/off_line_led_drivers_183/ Datasheet http://www.diodes.com/datasheets/AP1688.pdf
Ordering InformationDevice | Packaging | Marking ID | Reel Size | Tape width | Quantity |
AP1688MTR-G1 | SO-8 | 1688-G1 | 13" | 12mm | 4000 |
www.diodes.com
|
distributed by
|
