BULB_EB

IS31LT3916 Non-Isolation BULB Lighting DEMO Board Guide
Description
Quick Start
The IS31LT3916 is a primary side, peak
current mode, isolated or non-isolated type
HBLED driver. The device works at a constant
frequency in discontinuous conduction mode
to provide a constant power to the output. It
eliminates the need for an opto-coupler,
TL431, or any other type of secondary side
feedback. It operates from a wide input
voltage range of 90VAC to 260VAC.
The IS31LT3916 integrates over current
protection, over voltage protection, as well as
includes a thermal shutdown to halt the
switching action in the case of abnormally
high operating temperatures.
Recommended Equipment
 90~260VAC/50~60Hz power supply
 LED array(9 LEDs in series)
Recommended Input and Output Ratings
 Input: 90~260VAC
 Output: 9LEDs in series(30V/210mA)
Absolute Maximum Ratings
≤ 265VAC power supply
≤ 35V Vout (Total Vf)
Caution: Do not exceed the conditions listed above,
otherwise the board will be damaged or the output
will be limited.
Procedure
Features









Power factor correction to > 0.90
5% typical current accuracy
High efficiency
No loop compensation required
Wide input voltage range: 90V to 260VAC
Isolation and Non-isolation application
Internal over-temperature protection
Over voltage protection
Primary side over current protection
Applications
 LED bulb lamp
 LED tube lamp
 General LED lamp
Order information
Part Number
Package Type
IS31LT3916-SLS2-EBBULB
MSOP-8
The IS31LT3916 DEMO Board is fully
assembled and tested. Follow the steps listed
below to verify board operation.
Caution: Do not turn on the power supply until all
connections are completed.
1) Connect the positive terminal of the LEDs
to the LED+ pin of the DEMO and the
negative terminal of the LEDs to the LEDpin of the DEMO.
2) Connect the input pins (L and N) of the
DEMO via the main power switch to AC
power supply.
3) Turn on the power supply.
Figure 1 Picture of DEMO Board (NOTE: Physical dimensions are (L x W x H): 51mm x 21mm x 17mm)
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IS31LT3916 Non-Isolation BULB Lighting DEMO Board Guide
Bill of Materials
No.
Name
Description
Ref Des.
Qty.
Cost(RMB)
1
Fuse
1A,250V,3*10
F1
1
0.1
2
X Cap
0.1uF,275VAC
CX1
1
0.15
3
AL Cap
330uF±10%,50V,10mm*12mm
C3,C4
2
0.4
4
SMD Cap
NC
C5
1
0
5
CBB Cap
100nF±10%,400V
C6
1
0.15
6
SMD Cap
1nF±10%,16V,0805
C7
1
0.04
7
SMD Cap
1uF±10%,50V,0805
C8
1
0.1
8
SMD Cap
10uF±10%,50V,1206
C9
1
0.1
9
SMD Cap
1uF±10%,50V,1206
C10
1
0.1
10
Rectifying Bridge
MB6S,0.5A,600V,SOIC-4
BD1
1
0.3
11
SMD Diode
NC
D3
1
0
12
SMD Diode
1N4148,200mA,75V,LL34
D4
1
0.05
13
SMD Diode
M7,1A,1000V,SMA
D5
1
0.05
14
FR Diode
ES1J,1A,600V,SMA
D6
1
0.15
15
SMD Resistor
4.7KΩ±5%,0805
R2,R4,R13
3
0.018
16
SMD Resistor
1MΩ±1%,1206
R5,R9
2
0.016
17
SMD Resistor
200KΩ±5%,1206
R6,R10
2
0.016
18
SMD Resistor
910KΩ±1%,1206
R7
1
0.008
19
SMD Resistor
62KΩ±5%,1206
R8
1
0.008
20
SMD Resistor
750KΩ±1%,1206
R11
1
0.008
21
SMD Resistor
0Ω,0805
R12
1
0.006
22
SMD Resistor
NC
R14
1
0
23
SMD Resistor
1.8MΩ±1%,0805
R15
1
0.006
24
SMD Resistor
68KΩ±1%,0805
R16
1
0.006
25
SMD Resistor
240KΩ±1%,0805
R17
1
0.006
26
SMD Resistor
13KΩ±1%,0805
R18
1
0.006
27
SMD Resistor
18KΩ±1%,0805
R19
1
0.006
28
SMD Resistor
0.91Ω±1%,1206
R20,R21
2
0.016
29
SMD Resistor
150KΩ±1%,0805
R22
1
0.006
30
SMD Resistor
10KΩ±1%,0805
R23
1
0.006
31
Inductor
3mH±10%,8*10mm,Isat≥200mA
L1
1
0.15
32
Inductor
1mH±10%,5*10mm
L2,L3
2
0.1
33
Transformer
EE16,Tp:Ta=80:41,Lp=0.31mH±5%
TR
1
1
34
NMOS
4N60,4A/600V,TO-251
Q1
1
1
35
PCB
51mm x 21mm
-
1
0.3
36
IC
IS31LT3916,MSOP-8
U1
1
-
Total Cost(Exclude IC)
Integrated Silicon Solution, Inc. – www.issi.com
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4.378
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IS31LT3916 Non-Isolation BULB Lighting DEMO Board Guide
L2
F1
90~260VAC
CX1
BD1
L1
LED-
R2
L3
R4
C6
R5
R7
R9
R11
R6
TR
C3
C4
C5
R8
R13
R10
U1
VCC
VSINE
R16
C7
R18
C8 R19
R15
R17
FSET
FB
C9
R14
3916
D1
D3
Q1
GATE
LED+
R12
CS
NC
R20
GND
D4
R22
R21
D5
C10
R23
Figure 2. Schematic of DEMO Board
Figure 3 PCB Layout- Top Layer
Figure 4 PCB Component Placement Guide - Top Layer
Figure 5 PCB Layout- Bottom Layer
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IS31LT3916 Non-Isolation BULB Lighting DEMO Board Guide
Transformer Design
ELECTRICAL SPECIFCATIONS:
1. Primary inductance(Lp)[email protected]
MATERIALS:
1. Core: EE16 (Ferrite Material TDK PC40 or equivalent)
2. Bobbin: EE16, Primary 5 pins, Secondary 5 pins
3. Magnet Wires: Type 2-UEW
4. Layer Insulation Tape: 3M1298 or equivalent.
number of
number of
turns
plies
diameter
number of
tape
NO.
winding
Start
End
1
Np
3
1
80T
0.35mm-2UEW
2
0.02*4mm
2
Ns
4
5
41T
0.15mm-2UEW
3
0.02*4mm
plies
remarks
Test result
Input
voltage(VAC) 90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
PF THD(%) 0.999
0.998
0.998
0.997
0.996
0.994
0.993
0.991
0.988
0.985
0.981
0.977
0.973
0.968
0.961
0.955
0.948
0.94
2.7
2.7
2.4
2.4
2.4
2.5
2.5
2.5
3.4
3.5
3.6
4.5
4.7
4.8
4.9
5.1
5.3
5.4
Input
Output
Output
Output
Efficiency(%)
power(W) voltage(V) current(mA) power(W) 7.51
30.60
205
6.27
83.53
7.40
30.57
204
6.24
84.27
7.40
30.55
206
6.29
85.04
7.59
30.58
211
6.45
85.01
7.49
30.54
209
6.38
85.22
7.43
30.52
207
6.32
85.03
7.40
30.51
207
6.32
85.35
7.34
30.50
206
6.28
85.60
7.38
30.50
207
6.31
85.55
7.46
30.50
208
6.34
85.04
7.61
30.52
212
6.47
85.02
7.56
30.50
211
6.44
85.13
7.57
30.49
211
6.43
84.99
7.63
30.49
212
6.46
84.72
7.76
30.51
214
6.53
84.14
7.79
30.48
215
6.55
84.12
7.75
30.45
214
6.52
84.08
8.02
30.51
220
6.71
83.69
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300
100
280
95
260
90
240
85
Efficiency(%)
220
200
180
160
80
75
70
65
140
60
120
55
50
100
85
110
135
160
185
Vin(VAC)
210
235
260
85
110
Figure 7 Line regulation
135
160
185
Vin(VAC)
235
260
Figure 8 Efficiency&Vin
1
PF
210
10
0.95
9
0.9
8
0.85
7
0.8
6
0.75
5
0.7
4
0.65
3
0.6
2
0.55
1
0.5
THD(%)
Output current(mA)
IS31LT3916 Non-Isolation BULB Lighting DEMO Board Guide
PF
THD
0
85
110
135
160
185
Vin(VAC)
210
235
260
Figure 9 PF,THD&Vin
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IS31LT3916 Non-Isolation BULB Lighting DEMO Board Guide
EMI test
Figure 10 Conduction EMI_L
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IS31LT3916 Non-Isolation BULB Lighting DEMO Board Guide
Figure 11 Conduction EMI_N
Copyright © 2013 integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its
products at any time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services
described herein. Customers are advised to obtain the latest version of this device specification before relying on any published information and
before placing orders for products.
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