|
|
PDF AL1692 Data sheet ( Hoja de datos )
| Número de pieza | AL1692 | |
| Descripción | DIMMABLE LED CONTROLLER/DRIVERS | |
| Fabricantes | Diodes | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de AL1692 (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
|
No Preview Available !
AL1692
DIMMABLE LED CONTROLLER/DRIVERS
Description
The AL1692 is a high performance, high power factor, high efficiency,
and high current precision buck-boost and flyback dimmable LED
controller/drivers for triac dimmable LED lamp applications. The
AL1692 topology provides an accurate output current over wide line
and load regulation. The wide switching frequency operates at
boundary conduction mode (BCM) to ease EMI/EMC design and
testing, to meet the latest regulatory standards.
Pin Assignments
(Top View)
VCC 1
RT 2
COMP 3
GND 4
8 SW
7 NC
6 CS
5 FB
VCC 1
RT 2
COMP 3
GND 4
The AL1692 controller with external MOSFET can support higher
output power application, up to 25W. The AL1692 LED drivers have
AL1692-30BA with 400V/3A and AL1692-20C with 600V/2A
MOSFET. The AL1692 platform solutions can cover both 120Vac and
230Vac applications. The AL1692 has the built-in thermal fold-back
protection trigger point to automatically reduce output current. Other
protection features enhance LED lighting system's safety and
reliability.
SO-8
Applications
Mains Dimmable LED Lamps
Offline LED Power Supply Driver
7D
6 CS
5 FB
SO-7
The AL1692 dimming curve is compliant with the NEMA SSL6
standard. The AL1692 applies to a wide range of dimmers, including
leading edge and trailing edge dimmer, to achieve deep dimming
down to 1%.
The AL1692 controller is available in SO-8 package. The Integrated
MOSFET version AL1692-30BA and AL1692-20C are available in
SO-7 package.
Features
Tight Current Sense Tolerance : ±3%
Low Startup Current: 100µA Typical
Low Operation Current: 210µA (Switching Frequency at 4kHz)
Single Winding Inductor
Wide Range of Dimmer Compatibility
For Controller Power can Drive up to 25W
For MOSFET Options : 400V/3A and 600V/2A
NEMA SSL6 Dimming Curve Compliant
Internal Protections
Under Voltage Lockout (UVLO)
Leading-Edge Blanking (LEB)
Cycle-by-cycle Over Current Protection (OCP)
Output Open/Short Protection (OVP/OSP)
Thermal Foldback Protection (TFP)
Over-Temperature Protection (OTP)
SO-8 (Controller) and SO-7 (with MOSFET) 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 http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
AL1692
Document number: DS39008 Rev. 1 - 2
1 of 15
www.diodes.com
July 2016
© Diodes Incorporated
1 page  
AL1692
Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.) (Note 4)
Notes:
Symbol
VCC
VSW
VD
IDS
VCS
VRT
VFB
TJ
TSTG
TLEAD
PD
JA
JC
–
Power Supply Voltage
Parameter
Voltage on SW Pin (AL1692)
Voltage on Drain Pin (AL1692-30BA)
Voltage on Drain Pin (AL1692-20C)
Continuous Drain Current TC = +25°C (AL1692-30BA)
Continuous Drain Current TC = +25°C (AL1692-20C)
Voltage on CS Pin
Voltage on RT Pin
Voltage on FB Pin
Operating Junction Temperature
Storage Temperature
Lead Temperature (Soldering, 10 seconds)
SO-8 Power Dissipation (TA = +50°C) (Note 5)
SO-7 Power Dissipation (TA = +50°C) (Note 5)
SO-8 Thermal Resistance (Junction to Ambient) (Note 5)
SO-7 Thermal Resistance (Junction to Ambient) (Note 5)
SO-8 Thermal Resistance (Junction to Case) (Note 5)
SO-7 Thermal Resistance (Junction to Case) (Note 5)
ESD (Human Body Model)
ESD (Machine Model)
Rating
18
20
400
600
3
2
-0.3 to 7
-0.3 to 7
-0.3 to 7
-40 to +150
-65 to +150
+260
0.96
0.8
104
123
6.6
19
2,000
200
Unit
V
V
V
V
A
A
V
V
V
°C
°C
°C
W
W
°C/W
°C/W
°C/W
°C/W
V
V
4. 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. All voltages unless otherwise stated and measured with
respect to GND.
5. Device mounted on 1"x1" FR-4 substrate PCB, 2oz copper, with minimum recommended pad layout.
Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.)
Note:
Symbol
TA
Parameter
Ambient Temperature (Note 6)
Min Max
-40 +105
6. The device may operate normally at +125°C ambient temperature under the condition not trigger temperature protection.
Unit
°C
AL1692
Document number: DS39008 Rev. 1 - 2
5 of 15
www.diodes.com
July 2016
© Diodes Incorporated
5 Page 
Functional Description and Application Information (Cont.)
From the buck-boost output current equation, we can get the output current when dimming:
IO ( )
1
2
1
VREF
R5
1
0 2
I PEAK _ DI M
2VIN _ RMS Sin( ) d
2VIN _ RMS Sin( ) VO
if tON tON _ MAX
else
…………………… (10)
Where,
is the dimmer conduction angle.
Output Current (%)
100
tON<tON_MAX
AL1692
0
0
tON=tON_MAX
Critical Conduction Angle 180
Conduction Angle (deg)
Figure.2 Dimming Curve
Dimmer Compatibility
Passive Bleeder Design
The passive bleeder is designed to supply latching and holding current to eliminate dimmer misfire and flicker.
Damping
L1 Passive
Bleeder
L FR1
DB1
R1
C1
N C2
Figure.3 LED Driver Schematic with Passive Bleeder
The passive bleeder includes a capacitor (C2, in hundreds of nF) to provide latching current. A resistor (R1) is necessary to dampen the current
spike. Because a large C2 will affect the PF, THD and efficiency, the value of the capacitor (C2) should be selected accordingly. Generally,
100nF/400V to 330nF/400V is recommended. R1 is used to limit the latching current, If R1 is too large, the latching current is not enough and the
TRIAC dimmer will misfire causing LED flicker. If R1 is too small, it will result in greater power dissipation. Generally speaking, a 200Ω to 2KΩ
resistor is selected for R1.
Passive Damping Design
FR1 is the damper for reducing the spike current caused by quick charging of C2 at firing. In General, FR1 is selected from 20Ω to 100Ω for low
line like 120VAC application, and 51Ω to 200Ω for high line like 230VAC application.
AL1692
Document number: DS39008 Rev. 1 - 2
11 of 15
www.diodes.com
July 2016
© Diodes Incorporated
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet AL1692.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AL1692 | DIMMABLE LED CONTROLLER/DRIVERS | Diodes |
| AL1696 | HIGHLY INTEGRATION OFFLINE DIMMABLE LED DRIVER | Diodes |
| AL1697 | Offline Dimmable LED Driver | Diodes |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |