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PDF AP1694AS-13 Data sheet ( Hoja de datos )
| Número de pieza | AP1694AS-13 | |
| Descripción | HIGH EFFICIENCY DIMMABLE LED DRIVER CONTROLLER | |
| Fabricantes | Diodes | |
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AP1694AS-13
OFFLINE, HIGH PF, HIGH EFFICIENCY DIMMABLE LED DRIVER CONTROLLER
Description
The AP1694AS-13 is a high performance AC-DC power factor
corrector for mains dimmable LED driver applications. The device
uses Pulse Frequency Modulation (PFM) technology to regulate
output current while achieving high power factor and low THD. It
operates as a BCM (Boundary Conduction Mode) controller which is
good for EMI.
The AP1694AS-13 provides accurate constant current (CC) regulation
while removing the opto-coupler and secondary control circuitry. It
also eliminates the need for loop compensation circuitry while
maintaining stability. It can meet the requirement of IEC6100-3-2
harmonic standard.
The AP1694AS-13 features low start-up current and low operation
current. It adopts valley on switching mode to achieve high efficiency.
It also has rich protection features including overvoltage, short circuit,
and over-temperature protection.
The AP1694AS-13 provides the dimmable LED driver with a wide
dimmer compatibility including leading edge and trailing edge dimmer.
The AP1694AS-13 can achieve deep dimming down to 1%, while the
dimming curve is compliant with the standard of NEMA SSL6.
The AP1694AS-13 is available in SO-8 package.
Applications
Mains Dimmable LED Lighting
Pin Assignments
(Top View)
NC 1
RI 2
SGND 3
CS 4
SO-8
8 VCC
7 OUT
6 GND
5 FB
Features
Primary Side Control for Output Current Regulation without Opto-
coupler
Boundary Conduction Mode (BCM) Operation to Achieve High-
efficiency
High PF and Low THD (PF > 0.9, THD < 30%)
High Efficiency without Dimmer
Wide Range of Dimmer Compatibility
Dimming Curve Compliant with NEMA SSL6
Low Start-Up Current
Tight LED Current
Tight LED Open Voltage
Valley-Mode Switching to Minimize the Transition Loss
Mosfet Driver up to 25W
Easy EMI
Internal Protections:
Under Voltage Lock Out(UVLO)
Leading-Edge Blanking (LEB)
Output Short Protection
Output Open Protection
Over Temperature Protection
Flexible for Design with Small Form Factor and Very Low BOM
Cost
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.
AP1694AS-13
Document number: DS37789 Rev. 1 - 2
1 of 14
www.diodes.com
July 2015
© Diodes Incorporated
1 page  
Recommended Operating Conditions
Symbol
VCC
TA
Parameter
Power Supply Voltage
Ambient Temperature
Electrical Characteristics (@TA = +25°C, unless otherwise specified.)
Symbol
UVLO Section
VTH (ST)
VOPR (Min)
VCC_OVP
–
Standby Current Section
Parameter
Start-up Threshold
Minimum Operating Voltage
VCC OVP Voltage
VCC Delatch Voltage (Note 5)
IST Start-up Current
ICC (OPR)
Drive Output Section
Operating Current
VGATE
ISOURCE_L
ISOURCE_H
RDS(on)
Current Sense Section
Gate Voltage
Low Driver Source Current
High Driver Source Current
Sink Resistance
VCS_REF
Current Sense Reference
VCS_CLAMP
Current Sense Reference Clamp
tONP_MIN
Minimum tONP
tD(H-L)
Delay to Output (Note 5)
Feedback Input Section
IFB
Feedback Pin Input Leakage
Current
VFB_CV
FB CV Threshold
VFB_OVP
FB OVP Threshold
Output Current
–
System Output Current On Final
Test Board
Over Temperature Protection Section
– Shutdown Temperature (Note 5)
– Temperature Hysteresis (Note 5)
Conditions
–
After turn on
–
–
VCC = VTH (ST) -0.5V,
Before start up
Static
–
–
–
–
–
–
–
–
VFB = 2V
–
–
–
–
–
Note 5: These parameters, although guaranteed by design, are not 100% tested in production.
AP1694AS-13
Min Max Unit
7 25 V
-40
+105
°C
Min Typ Max Unit
13 14.5 16
5.5 6.5 7.5
27 29 31
345
V
V
V
V
– – 20 µA
–
900 1,300
µA
11 12 14
V
35 40 45 mA
90 100 120 mA
678Ω
–1– V
1.2 1.4
–
V
700 – 1,000 ns
50 150 250 ns
– – 4 µA
3.8 4 4.2 V
4.5 6 7.5 V
– – ±2 %
+150
–
–
+20
–
–
°C
°C
AP1694AS-13
Document number: DS37789 Rev. 1 - 2
5 of 14
www.diodes.com
July 2015
© Diodes Incorporated
5 Page 
Application Information Based on Buck Structure (cont.)
Fault Protection
Over Voltage Protection and Output Open Protection
VCC
RFB1
RFB2
FB
AP1694A
AP1694AS-13
Figure 4. OVP Circuit
The output voltage is sensed by the auxiliary winding voltage of the Buck transformer. The VCC pin and FB pin provide over voltage protection
function. When the output is open or large transient happens, the output voltage will exceed the rated value. When the voltage of Vcc cap exceeds
VCC_OVP or VFB_CV, the over voltage is triggered and the IC will discharge VCC. When the VCC is below the UVLO threshold voltage, IC will start a
new work cycle and the Vcc cap is charged again by start resistance. If the over voltage condition still exists, the system will work in hiccup mode.
Attention: If the external fast startup circuit is adding in the application and the over voltage protection and output open protection happen, the IC
will trigger latch.
Output Short Protection
When the output is shorted, the output voltage will be clamped at zero. At this condition, VCC will drop down without auxiliary winding for power
supply, and the VCC will drop to UVLO threshold voltage. The IC will shut down and restart a new operating cycle, and the VCC is charged by
startup resistance. When VCC is higher than Vcc_start voltage, IC will output a bunch of pulses to control power switch on and off. When still no FB
signal detected, the device will not output more pulses. The VCC will again drop to VCC UVLO threshold. If output short condition still exists, the
system will operate in hiccup mode.
Attention: If the external fast startup circuit is adding in the application, the device will not work at UVLO mode, and the device will work at
minimum toff mode.
Over Temperature Protection
AP1694AS-13 has two kinds of over-temperature protection processes. First, if the system is operating normally, the ambient temperature is
changed to +170°C, and suddenly the IC will trigger over-temperature protection which leads to a latch work mode. Second, if the system starts
when the ambient temperature is higher than +150°C, over temperature protection will be triggered. So, the AP1694AS-13 can startup
successfully when the ambient temperature is less than +150°C.
Components Selection Guide
If the system’s spec is changed, please refer to the design sheet of the AP1694AS-13 and select the compatible system parameter. When the
system needs to be adjusted slightly, please refer to the table below and adjust the value of the related component.
Item
IO
Output Current Ripple
ton_initial
Output Open Voltage
Dimming Performance
EMI
Line Compensation
Description
Output current
Small current ripple is good for LED life
System initial on time, used to startup the system
Setting the output voltage when the LED is open
Improve the dimming performance
Pass EN 55022 class B with 6DB margin
To get a good line regulation
Related Components
R8
C4
R1
R5, R6
R1, RF, R9, C2, C4
L1, C1
R7
AP1694AS-13
Document number: DS37789 Rev. 1 - 2
11 of 14
www.diodes.com
July 2015
© Diodes Incorporated
11 Page | ||
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