AN203

AN203
1-Channel Dimmable White Smart Connected Light Bulb Reference Design
“AL1663 (PSR PFC Controller) + AP3988 (PSR Switcher)”
Tyson Liao, Lighting Business Unit, Diodes Inc.
GENERAL DESCRIPTION
The emerging Smart Connected Light (SCL) Bulbs, as Internet of Things (IoT) devices in Smart Home
environment, are characterized by integration of wireless-connectivity microcontroller (MCU) in LED light
bulbs. Users can manage LED light bulbs through smart phone APPs to achieve the following needs:

Energy saving (through dimming of brightness) - 1-channel Dimmable White (1-ch DW)

Light quality management – 2-channel Tunable White (2-ch TW)

Entertainment lighting – 3-channel Tunable Color (3-ch TC) or 4-channel White+RGB (4-ch W+RGB)
Typical functional block diagram of SCL bulbs consists of:

AC-DC Power

LED Driver

Emitter Module

Wireless MCU Connectivity
This application note describes the complete reference design of an A19 10W ZigBee-Enabled 1-channel
Dimmable White SCL (1-ch DW SCL) bulb. It serves as a good starting point for system designers to
further customize SCL bulb design to their desired performance and cost consideration for similar products.
KEY SPECIFICATION

Model:
A19-DD-BU-LO-1CH

Lamp Shape:
A19

Operating Power:
10W

Operating Voltage: 100V-240V

Frequency:
50/60Hz

Average Lifetime:
25,000Hrs

Bulb Base:
E26/E27

Lumen:
800 lm

CCT Range:
2,700K

CRI:
80Ra

Wireless:
ZigBee Module

Dimension (L*D):
113mm x 62mm
AN203 1-Channel DW SCL Bulb
Reference Design
Document number: Rev 1.0
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AN203
FUNCTIONAL BLOCK DIAGRAM
AC

AC-CC PSR PFC and PWM Dimming
LED Driver Conversion- AL1663

AC-CV Power Conversion and Power
Management- AP3988
Constant
Voltage
+3.3Vdc
Constant
Current
LED
Emitter
Module
PWM
Control
Wireless
Connectivity Module
Wireless
Command Input
Figure 1 - Functional Block Diagram for Smart Connected Light Bulb
A typical 1-Channel dimming SCL bulb (Figure 1) consists of four major functional blocks:
1) AC-CC LED Driver – It converts AC input to generate one Constant Current (CC) to drive LED emitters. The
AL1663 is a high performance LED controller which can support PWM dimming mode.
2) AC-CV Power Conversion - It converts AC input to DC-3.3V output. For a SCL bulb, 3.3V might be required to
DC power requirement from wireless connectivity module.
3) Wireless Connectivity Module - The Wireless Connectivity Module consists of an intelligent MCU and RF
circuitry to connect a SCL bulb either directly with smartphones or indirectly through Wi-Fi/ZigBee hub, based
on a communication protocol (e.g. Bluetooth/BLE, ZigBee, etc.)
4) LED Emitter Module - This is the light source for the SCL bulb. Driven by PWM dimming signal from Wireless
Connectivity MCU, the LED Emitter Module to generate desired light brightness adjustment.
AN203 1-Channel DW SCL Bulb
Reference Design
Document number: Rev 1.0
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COMPLETE DESIGN SCHEMATICS
V_bulk
R5
L
F1
R1
D1
L1
L2
LED+
R2
EE16
CX1
4
-
R6
D2
FA1
R3
1
BD1
VDR1
C1
1 T1
C2
10
ZD1
C3
~
3
+
R7
R8
C4
~
C5
D6
2
9
LED-
R11
2
FA2
N
D10
R12
4
C8
GND1
+ C7
R13
5
PWM1
1
APWM
VCC
R15
R14
7
C6
U1
AL1663 / SO-8
FB
8
R16
3
PWM
COMP
CS
Q1
MOSFET N
6
4
R18
R19
5
R17
OUT
GND
2
C9
Figure 2.a –Power Board Application Schematics- AC-CC AL1663 section
V_bulk
D18
L3
V3.3+
D19
R23
R24
EE10
5 T2
C11
FB1
9
ZD2
C12
C13
R25
R26
GND2
GND3
D20
4
8
R28
FB2
D21
1
C14
R30
2
Wireless_Module
R31
CN2
3
5
PWM1
4
CS
6
R32
7
GND
PWM1
PWM1
PWM2
PWM2
PWM3
PWM3
PWM4
PWM4
EN
EN
1a
1
2a
2
3a
3
4a
4
5a
5
6a
6
7a
7
3.3V
GND
PWM1
PWM2
PWM3
PWM4
EN
A-
7
C15
GND
5
4
3.3V
GND
ANT
C
6
3.3V
ANT_G
2
2
FB
CPC
1
GND3
C
1.27mm(7 pin)
V3.3+
A+
1
VCC
U2
AP3988 / SO-7
3
C16
ANT
Figure 2.b –Power Board Application Schematics- AC-CV AP3988 section
AN203 1-Channel DW SCL Bulb
Reference Design
Document number: Rev 1.0
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AN203
LED+
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
A1
ANTENNA
LED-
R1
ANT
Figure 2.c - LED Emitter Module Schematics
AN203 1-Channel DW SCL Bulb
Reference Design
Document number: Rev 1.0
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APPLICATION DESCRIPTION

Power Board (PB) Application Description
The AC-CC LED driver conversion (AL1663, PSR PFC PWM dimmable LED driver) as well as AC-CV power
supply (AP3988 PSR Switcher) co-exist in the same PCB (Figure 3), the outputs two power supplies:
 AC-CC LED Driver - 360mA@24V for driving LED emitter string. The driver design is based on AL1663
single stage Flyback high PF LED driver with PWM dimming control. (Refer to the Key Components section
on page 12). The AL1663 provides accurate constant current (CC) regulation while remove the optocoupler and secondary control circuitry.
The AL1663 is a high performance LED controller which can support multiple dimming modes. PWM signal
of ZigBee module is applied on APWM pin of AL1663, the device works at true PWM dimming mode, and to
control the LED current.
For the design principles and design examples of AP1663 LED Driver (e.g. Switching Frequency,
Transformer Design, Feedback Resistors Network Design), please refer to Diodes' Application Note of
AL1663.
 AC-CV Power Supply – 3.3V/100mA for driving attached wireless connectivity module. The power supply
design is based on AP3988 PSR AC/CV Switcher IC (Refer to the Key Components section on page 12).
AP3988 built-in NPN transistor has fewer component number, smaller size, and lower total cost. The
maximum power rating to be capable up to 5.5W.
For the design principles and design examples of AP3988 power supply (e.g. Switching Frequency,
Transformer Design, Feedback Resistors Network Design), please refer to Diodes' Application Note of
AP3988.
AP3988
SO-7
CN2
AL1663
SO-8
LED+
LED-
Figure 3 - Power Board (58mmx27mm)
AN203 1-Channel DW SCL Bulb
Reference Design
Document number: Rev 1.0
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Pin Name
Functions
LED+
Connected to anode of emitter string
LED-
Connected to cathode of emitter string
Output Pin Functions (Connected to Emitter Board)
Pin#
Pin Name
Functions
1
+3.3V
This Pin is attached to the output +3.3V of Power Supply
(AP3988). For M56 ZigBee module VDD input.
2
GND
Ground.
3
PWM1
7
-
This pin is attached to the APWM of AL1663. Connected to
PWM_01 of M56 ZigBee module, for dimming control
Fixed ZigBee module (No signal)
CN2 Pin Functions (Connected to ZigBee Module)
AN203 1-Channel DW SCL Bulb
Reference Design
Document number: Rev 1.0
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AN203

Emitter Module Board (EMB) Application Description
The 1-channal DW EMB (Figure 4) adopts 2,700K CCT warm white emitters, arranged in parallel-serial strings
(total of 12 emitter, 3P4S - 3 Parallel and 4 Serial Emitters).
The Forward Voltage Drop (VF) per emitter, with two 0.5W emitter dies in serial, is around 6.0V and the total VF per
emitter sting is 24.0V (refer to Appendix II Emitter Spec).
The choices of numbers of emitters, emitter structure arrangement, and driving current are based on meeting the
required system specification (above 800 lumens for the finished light bulb).
LED+
A1
LED-
Figure 4 - Emitter Module (Diameter - 46mm)
Pin#
Pin Name
Functions
LED+
LED+
The soldering pad is attached to the common anode of LED
(6500K) and LED (2700K) emitter strings.
LED-
2700K LED-
The soldering pad is attached to the cathode of LED (2700K)
emitter string.
A1
Antenna
The soldering pad is attached to the Antenna chip.
Output / Input Pin Functions
AN203 1-Channel DW SCL Bulb
Reference Design
Document number: Rev 1.0
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AN203

M56 ZigBee Module (ZM) Application Description
For the wireless connectivity, it is enabled by embedding M56 ZigBee Module (Appendix III) inside the 1-ch DW
SCL bulb by piggybacking on the other side of the Power board. Embedded ZigBee Light Link (ZLL) in the flash
memory, M56 ZigBee module will communicate ZLL commands with a ZLL-capable Gateway Hub.
This ZigBee module board is piggybacked on the reverse side of power board.
Pin1~7 Connected to CN2.
7 6 5 4
3 2 1
Figure 5 - M56 ZigBee Module (15mm x 15mm)

Output Assembly Description
ZigBee Module
CN2
Power Board
LED Anode (LED+)
LED Cathode (LED-)
Antenna cable
AC Input
Figure 6 - Power Board + M56 ZigBee board



Two wires connected to AC input
Two wires for Emitter:
1.
Red wire connected to LED Anode
2.
Blue wire connected to LED Cathode
Antenna Cable from M56 ZigBee Module connected to A1 ”Antenna Chip” of Emitter board
AN203 1-Channel DW SCL Bulb
Reference Design
Document number: Rev 1.0
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AN203
PERFORMANCE TESTING
The key system performance parameters of 1-ch DW SCL bulb are summarized in Table 1 below.
10W A19 1-Channel Dimmable White Reference Light Bulb
Item No
Parameter
Condition
Test Result
1
Input Voltage Range
100-240VAC ~ 50/60Hz
2
Power Factor
> 0.9
Output: 24V/360mA
100VAC: 0.97
230VAC: 0.92
3
Efficiency
Eff > 80%
100VAC: 84%
230VAC: 83%
4
Standby Power
< 0.5Watt (M56 ZigBee module
Operating Current is about 35mA )
100VAC/60Hz: 0.23W;
230VAC/50Hz: 0.46W
5
Start-Up Time
< 2 Sec
100 VAC : 1.28 Sec
230 VAC : 1.39 Sec
6
Output Current Ripple
(Ipeak-to-peak)
Test Condition
Output: 24V/360mA
Ipeak-to-peak (E-CAP=470uF/35V)
100 VAC /60Hz: 332mA
230 VAC /50Hz: 330mA
7
THD
(Total Harmonic Distortion)
Test Condition
Output: 24V/360mA
100VAC/60Hz: 12%
230VAC/50Hz: 22%
8
Temperature of IC
< 105°C
AP3988: 40°C (Open Cover)
AL1663: 48°C (Open Cover)
9
Line Regulation
<10%
Iout: 350~380mA (7.9%)
Table 1 - System Performance Testing of 1-ch DW SCL Bulb
AN203 1-Channel DW SCL Bulb
Reference Design
Document number: Rev 1.0
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SYSTEM DESIGN CONSIDERATIONS AND TRADE-OFFS
When design a production worthy SCL bulb, the system designers have many considerations:
1) Input Voltage Range
2) Power Factor (PF)
3) Standby Power
4) Start-Up Time Sequence

Input Voltage Range Design Considerations:
While 1-ch DW SCL bulbs are designed for full range voltage input, system designs could optimize components for
single voltage application (e.g. 120V or 230V). For example, more cost-effective components could be used for
120V-only SCL bulb, including:
1) Bridge Diode: BD1 (DF06S, see Figure 2.a on Page 3)
2) Switching Device MosFET : Q1 (see Figure 2.a on Page 3)
3) Output rectifier Diodes: D2 and D19 (see Figure 2.a and 2.b on Page 3)

Power Factor (PF) Design Considerations:
Per Energy Star Compliance requirement, the Power Factor (PF) for over 5W light bulb needs to be over 0.7. The
AL1663 have built-in Active Power Factor Correction circuitry to achieve desired PF over 0.7. AP3988 converter as
well as AL1663 LED driver parallel co-exist in the AC input side. As AP3988 is a standard Flyback topology, a bulk
capacitor is used at input filter circuit, that will impact to power factor of bulb. The D1 and D18 (see Figure 2.a and
2.b on Page 3) separated the inputs of two converters. The bulb PF will achieve requirement (>0.7).

Standby Power Design Considerations:
While fixed-CCT on-off LED light bulb will have no power consumption when turned off at standby mode, a SCL
bulb consumes non-trivial standby power due to constant-on for wireless module connectivity. To save energy
consumed during the standby mode, it recommends to stay within 0.5W when in the standby mode for the entire
SCL bulb.
In the 1-ch DW SCL bulb design, the standby power consumption is measured with estimated breakdown as
follows:
1)
2)
3)
4)
AL1663 LED Driver Start-up Resistor Circuit ZigBee Module Others Power Loss-
AN203 1-Channel DW SCL Bulb
Reference Design
Document number: Rev 1.0
65 mW (When AL1663 VAPWM is lower than 0.3V, the output current is zero)
125 mW (R24 and R28 (see Figure 2.b on Page 3) are 330K/1206 resistors)
165 mW (UBEC M56 ZigBee Module standby current is 35mA)
30 mW (AP3988 converter, Snubber and Switching Loss)
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
Start-Up Time Sequence Design Considerations:
In the 1-ch DW SCL bulb design, the MCU and LED driver turn-on-time impact the SCL bulb startup performance.
MCU could be given priority start, and controlling LED driver startup programming. SCL bulb will achieve high
startup performance (e.g. Turn-on no blinking, lamp fade in function, etc.).
For low-cost implementation, a simple start-up circuitry is adopted. In the 1-ch DW bulbs have different start-up
resistors, to achieve MCU and LED driver startup sequence. Provide a better start-up performance.
AC Input
AP3988 VCC
AL1663 VCC
3.3V for MCU
0%
100%
Fade-in
MCU_PWM
LED Current
1-ch DW SCL Bulb Startup Timing Sequence
1-ch DW SCL Bulb Startup Test Waveform
AN203 1-Channel DW SCL Bulb
Reference Design
Document number: Rev 1.0
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AN203
KEY COMPONENTS

AL1663 - LED Driver Controller
AL1663 IC PIN OUT ASSIGNMENT
APWM
1
PWM
2
8
FB
7
VCC
(Top View)
COMP
3
6
OUT
CS
4
5
GND
SO-8

Primary side control for output current regulation without opto-coupler

Valley on function to achieve low switching loss

Low Start-up current

High PF and low THD

High efficiency

Support PWM dimming and analog dimming

Tight LED current

Right LED open voltage

Internal protections

Under Voltage Lock Out (UVLO)

Output Open Protection

Output Short Protection

Over Current Protection

Over Temperature Protection

Low system cost

Package: SO-8

Totally Lead-Free & Fully RoHS compliant

Halogen and Antimony Free. “Green” Device

AL1663 Pin Descriptions:
Pin Number
Pin Name
1
APWM
2
PWM
PWM signal input pin in PWM to DC dimming mode
3
COMP
Loop compensation pin
4
CS
Primary current sensing
5
GND
6
Out
Gate driver output
7
VCC
Supply voltage of gate driver and control circuits of the IC
8
FB
The feedback voltage sensing from the auxiliary winding
AN203 1-Channel DW SCL Bulb
Reference Design
Document number: Rev 1.0
Descriptions
Analog dimming input pin (or PWM signal input pin in true PWM dimming mode)
Ground
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
AP3988/89/90 - AC/CV Controller
AP3988/89/90 IC PIN OUT ASSIGNMENT
CPC
1
FB
2
GND
7
CPC
1
FB
2
(Top View)
7
GND
(Top View)
VCC
3
6
C
VCC
3
6
C
CS
4
5
C
CS
4
5
C
SO-7 (M Package) For AP3988
PDIP-7 (P7 Package) For AP3989/90

Primary Side control for Eliminating Opto-coupler and Secondary CV/CC Control Circuitry

Built-In NPN Transistor with 700VCBO

Low Start-up current: 0.2uA (Typ.)

Internal Output Cable Voltage Drop Compensation

Hiccup Function to Improve Short Circuit Protection

Better Over Voltage Protection

Better Over Temperature Protection

Low Total Cost Solution

Output Power Range:
AP3988 for 5.5W Adapter
AP3989 for 8W Adapter
AP3990 for 12W Adapter

Totally Lead-Free & Fully RoHS compliant

Halogen and Antimony Free. “Green” Device

AP3988/89/90 Pin Descriptions:
Pin Number
Pin Name
1
CPC
2
FB
3
VCC
4
CS
5, 6
C
7
GND
AN203 1-Channel DW SCL Bulb
Reference Design
Document number: Rev 1.0
Descriptions
This pin is connected a capacitor to GND for output cable compensation.
The voltage feedback from auxiliary winding
This pin receives rectified voltage from the auxiliary winding of the transformer
Current sense from primary side of transformer
The pin is connected with an internal power BJT’s collector
The pin is the signal reference ground
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AN203
Bill of Material – Power Board
#
Name
Qty
1
BD1
1
DF06S
Part No.
Manufacturer
2
CX1
1
0.047uF/275Vac
EMI capacitor filter
3
F1
1
T1.5A-T250V
Fuse
4
L1
1
1.5mH/6Φ,I core (0.12mm*240ts)
EMI inductor filter
5
VDR1
1
471K
Reserved for Future Use EMC Part.
Diodes,Inc.
Description
600V/1A bridge diode
AC-CC, AL1663 section
6
C1
1
470pF/1KV/1206
Snubber capacitor
7
C2
1
1nF/1KV/1206
Snubber capacitor
8
C6
1
10pF/16V/0603
Capacitive filter
9
C8
1
0.1uF/50V/0805
Capacitive filter
10
C9
1
1uF/16V/0603
Comp capacitor
11
C3
1
470uF/35V/10*16
Output capacitor
12
C5
1
68nF/400V,MEF
Capacitor filter
13
C4
1
22nF/400V,MEF
Capacitor filter
14
C7
1
10uF/50V,5*11
15
D1,D6,D10
3
16
D2
1
17
L2
1
DFLR1600-7,POWERDI® 123
SBR1U200P1-7,POWERDI® 123
APD240KDTR-G1, SOD-123
3.3mH/8Φ,I core (0.17mm*300ts)
18
Q1
1
4A/600V,N-Mosfet
DMG4N65CT,TO220-3
DMG4N65CTI,ITO220-AB
19
R2,R5
2
5.1KR/0805
By pass resistor
20
R15
1
0R/0603
Jumper
21
R33
1
0R/0603
Jumper
22
R1
1
22R/0805
Snubber resistor
23
R7
1
12KR/1206
Pre-load
24
R3,R8
2
75KR/1206
Snubber resistor
25
R17
1
1KR/0603
Comp resistor
26
R6,R11
2
750KR/1206
Startup resistor
27
R13
1
62KR/0603
FB resistor
28
R14
1
4.7KR/0603
FB resistor
29
R18
1
3R/1206
CS resistor
30
R19
1
3R/1206
CS resistor
31
R12
1
10R/0805
Snubber resistor
32
R16
1
51R/0805
33
T1
1
EE-16
34
U1
1
AL1663,SO-8
Diodes,Inc.
Offline, single stage Flyback high PF controller
for LED driver
35
ZD1
1
DFLZ36,1W,POWERDI® 123
Diodes,Inc.
1.0W surface mount power Zener diode
Startup and VCC hold-up capacitor
Diodes,Inc.
1.0A surface mount glass passivated rectifier
Diodes,Inc.
Surface mount super barrier rectifier
Inductor filter
Diodes,Inc.
N-channel enhancement mode MosFET
Gate driver resistor
Emax,Inc.
Transformer
AC-CV, AP3988 section
36
C11
1
1nF/1KV/1206
Snubber capacitor
37
C14
1
4.7uF/50V,1206
Startup and VCC hold-up capacitor
38
C15
1
10nF/16V
CPC capacitor
39
C12
1
1uF/400V,8*10
Capacitor filter
40
C13
1
220uF/16,6*11
Output capacitor
41
C16
1
10pF/16V/0603
Capacitive filter
42
D18,D20,D21
3
DFLR1600-7
AN203 1-Channel DW SCL Bulb
Reference Design
Document number: Rev 1.0
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1.0A surface mount glass passivated rectifier
January 2016
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AN203
Diodes,Inc.
43
D19
1
DFLS140-7,POWERDI® 123
44
L3
1
470uH
Inductor filter
45
R4,R20
2
0R/0603
Jumper
46
R25
1
1KR/0805
Pre-load
47
R23,R26
2
75KR/1206
Snubber resistor
48
R24,R28
2
510KR/1206
Startup resister
49
R30
1
51KR/0603
FB resistor
50
R31
1
20KR/0603
FB resistor
51
R32
1
5R/1206
CS resistor
52
T2
1
EE-10
53
U2
1
AP3988,SO-7
Diodes,Inc.
Primary side power switcher for off-line SMPS
54
ZD2
1
BZT52C3V9,SOD123
Diodes,Inc.
Surface mount Zener diode
55
CN2
1
1.27mm,7pin
CviLux, Inc.
Connector
Emax,Inc.
1.0A/60V surface mount Schottky barrier rectifier
Transformer
Wireless module_ZigBee
56
M56
1
15*15mm,105°C
UBEC
2.4G RF ZigBee module
57
ANT
1
45mm
UBEC
Antenna
Bill of Material – Emitter Board
#
Name
Qty
58
D1~D12
12
LTW3030DZL27
59
R1
1
0R/1206
60
A1
1
ANT3216LL11R
AN203 1-Channel DW SCL Bulb
Reference Design
Document number: Rev 1.0
Part No.
Manufacturer
LITEON, Inc.
Description
LTW-3030DZL Emitter Series
Jumper
UBEC
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Antenna chip
January 2016
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AN203
APPENDIX I - T1, EE-16 Transformer SPEC (AL1663 section)
A.
Transformer Pin & Wire Description:
Circuit：
Primary
Cross sectional view：
Secondary
1
FA1
L5
2Ts
L3
3
L5
FA2
2Ts
L1
L4
2Ts
2
4
L3
2Ts
L4
L2
2Ts
5
L1
Start
L2
Teflon Tube
X
Pin definition
(StartEnd)
Wire (φ)
Turn (Ts)
Layers
Layers of Tape
L1
23
2UEW-B 0.2mm x 1P
76
2
2
L2
5X
2UEW-B 0.12mm x 1P
60
1
2
L3
FA1FA2
2UEW-B 0.23mm x 2P
31
2
2
L4
45
2UEW-B 0.2mm x 1P
23
1
2
L5
31
2UEW-B 0.2mm x 1P
34
1
2
OVER CORE
B.
#
2.1
3Ts
Electrical Characteristic:
Test Item
Winding
Pin
Rating
Unit
Tolerance
Remark
Inductance
L1+L5
2→1
1
mH
+/-5%
@ 100KHz / 1V
AN203 1-Channel DW SCL Bulb
Reference Design
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T2, EE-10 Transformer SPEC (AP3988 section)
A.
Transformer Pin & Wire Description:
Circuit：
Primary
Cross sectional view：
Secondary
4
FB1
L1
L4
3
FB2
2Ts
L4
1
2Ts
L3
L3
2Ts
2
L2
2Ts
L2
L1
Start
X
Teflon Tube
Pin definition
(StartEnd)
Wire (φ)
Turn (Ts)
Layers
Layers of Tape
L1
3 4
2UEW-B 0.13mm x 1P
160
4
2
L2
2X
2UEW-B 0.13mm x 1P
42
1
2
L3
12
2UEW-B 0.13mm x 1P
35
1
2
L4
FB1FB2
2UEW-B 0.19mm x 1P
10
1
2
OVER CORE
B.
#
2.1
3
Electrical Characteristic:
Test Item
Winding
Pin
Rating
Unit
Tolerance
Remark
Inductance
L1
3→4
2
mH
+/-5%
@ 100KHz / 1V
AN203 1-Channel DW SCL Bulb
Reference Design
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APPENDIX II - LITE-ON OPTO EMITTER SPEC

LTW-3030DZL Emitter Series (LTW-3030DZL27)

Typical Performance
Contact LiteON Opto (光寶科技)
Web Site:
www.liteon.com/opto
Contact:
Eddie Su ([email protected])
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Reference Design
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APPENDIX III - ZIGBEE MODULE M56 (UBEC)

Introduction and Specification
 M56 Module:
2.4GHz RF module which integrates UBEC’s low power 2.4GHz
IEEE802.15. 4 RFIC UZ2400D
 MCU:
ARM M0-Cotex Low Power Design
 Voltage Input:
2.7V ~ 3.6V
 TX Current (@3.3V, 32MHz):
37.09mA
 RX Current (@3.3V, 32MHz):
33.76mA
 Temperature Range:
-20°C ~ 105°C
 Dimension:
15mm x 15mm
Functions
Pin#
Pin Name
1
VDD
Connected to power board +3.3V (CV output of AP3988)
2
GND
Connected to power board ground
3
PWM_01
Connected to power board APWM (U1_AL1663)
4
PWM_02
Not Available
5
PWM_03
Not Available
6
PWM_04
Not Available
7
EN
Not Available
Output Pin Functions (Connected to power board)
M56 ZigBee Module Outline Drawing
AN203 1-Channel DW SCL Bulb
Reference Design
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
Schematic and Connection Definition
Pin#
Pin Name
Functions
Remark
1
TX
UART1 data transmitter output pin
Connected to GPB5
2
RX
UART1 data receiver input pin
Connected to GPB4
3
NRST
4
SWDAT
ICE_SWDAT
5
SWCLK
ICE_SWCLK
RST
J1 - Serial Wire Debug Port
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Pin#
Pin Name
Functions
1
VDD
+3.3V
2
GND
Ground
3
PWM_01
PWM 0 channel 0 output, GPIO, (PA. 12)
4
PWM_02
PWM 0 channel 1 output, GPIO, (PA. 13)
5
PWM_03
PWM 0 channel 2 output, GPIO, (PA. 14)
6
PWM_04
PWM 0 channel 3 output, GPIO, (PA. 15)
7
EN
GPIO, I C 1 SDA, (PA. 10)
8
FAULTB
GPIO, I C 1 SCL, (PA. 11)
9
LEDPG
GPIO, ADC, (PA. 0)
10
TEM-D
Not Available
11
VADJI I/D
Remarks
PWM Dimming
2
2
GPIO, DAC (PC. 7)
J2 - Application Usage
Contact UBEC:
Headquarters
Address: 6F-1, No. 192, Dongguang Rd., Hsinchu, 300 Taiwan
Tel: +886-3-5729898
Fax: +886-3-5718599
Website: http://www.ubec.com.tw
Sales Services
E-mail: [email protected]
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Reference Design
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IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS
TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE
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Copyright © 2016, Diodes Incorporated
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Reference Design
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