AL1696
HIGHLY INTEGRATION OFFLINE DIMMABLE LED DRIVER
Description Pin Assignments
The AL1696 is a highly integrated high power factor constant current
converter for mains dimmable LED driver applications. The AL1696 (Top View)
controls the system operating in boundary conduction mode (BCM) to
ease in EMI/EMC qualification and testing to meet the latest
7
1 D
NC
regulatory standards.
NC
2
VCC
The AL1696 with build-in MOSFET solution reduces the bill of 3 6
CS
material (BOM) cost by eliminating the need of auxiliary winding and
4 5 RT
GND
external high voltage MOSFET.
The AL1696 can be compatible with a wide range of dimmers
SO-7
including leading edge and trailing edge dimmers. Some dimmers can
achieve deep dimming down to 1%. The AL1696 dimming curve is
Applications
compliant with the standard of NEMA SSL6.
Mains Dimmable LED Lamps
Offline LED Power Supply Driver
The AL1696 is available in SO-7 package, which provides an extra
pin spacing between the high voltage MOSFETs drain and low
voltage pins to increase electricity isolation.
Features
Internal MOSFET up to 300V/3A, 400V/3A, 500V/2A, 600V/2A
Tight Current Sense Tolerance: 3%
Low Startup Current: 150A
Low Operation Current: 120A (Switching Frequency at 5kHz)
Single Winding Inductor
Wide Range of Dimmer Compatibility
Dimming Curve Compliant with NEMA SSL6
Internal Protections
Under Voltage Lockout (UVLO)
Leading-Edge Blanking (LEB)
Cycle-by-cycle Over Current Protection (OCP)
Output Short Protection (OSP)
Over-Temperature Protection (OTP)
SO-7 Package
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. Green Device (Note 3)
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See U1 AL1696
U1 AL1696
AL1696
Typical Applications Circuit
L1
FR1
R2
NC D
1 7
AC
R3
Input NC
2
DB1
CS VCC
R1 6
3
C3
C1
GND RT
4 5
C4
R5
C2
R6 D1
R4
LEDS
L2 R7 C5
D2
Buck-Boost Application Circuit
L1
FR1
R2
NC D
1 7
AC
R3
Input NC
2
DB1
CS VCC
R1 6
3
C3
C1
C4
GND
RT R4
4 5
R5
C2
R6
D2
L2
LEDS
R7
D1
C5
Buck Application Circuit
Pin Descriptions
Pin Number Pin Name Function
1, 2 NC No connection
3 CS Current sensing
4 GND Ground
5 RT Resistor set the systems maximum t
ON
6 VCC Power supply voltage
7 D Drain of the internal high voltage MOSFET
2 of 14
AL1696 July 2016
Diodes Incorporated
www.diodes.com
Document number: DS38304 Rev. 2 - 2
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