Description Features Applications Quick Start Ordering

IS31LT3932 ISO Bulb Lighting Evaluation Board Guide

Description
LED PAR
IS31LT3932 is a universal LED driver, which can operate in
fly-back, buck-boost and buck convertor. For isolation
Quick Start
fly-back, it can achieve high PF, high current accuracy, ± 5 %
Recommended Equipment
load and line regulation and wide voltage input voltage range,
●
85~265VAC/50~60Hz power supply
without loop compensation. For buck convertor, it also can
achieve high PF, high current accuracy, high efficiency, good
Absolute Maximum Ratings
load and line regulation and wide voltage input voltage range,
●≤ 265VAC power supply
without loop compensation. with very few components.
●≤ 39V Vout (Total Vf)
IS31LT3932 has special power line sense and output voltage
sense circuits, operates in primary feedback mode without
Caution: Do not exceed the conditions listed above,
opto-coupler and achieve stable output current control without
otherwise the board will be damaged or the output will
any loop compensation.
be limited
IS31LT3932 has multiple protections to improve the system
Procedure
reliability, including LED open circuit, LED short circuit, UVLO,
The IS31LT3932 DEMO Board is fully assembled and tested.
OVP, current sense resistor short, the primary over current
Follow the steps listed below to verify board operation.
limit and over temperature protections.
Caution: Do not turn on the power supply until all
connections are completed.
Features

Universal isolation and non-isolation

Single stage PFC fly-back

No loop compensation required

No opto-coupler required

± 3 %LED current accuracy

± 5 % line regulation and load regulation

Wide input voltage: 85~265Vac

Low start-up current(15uA)

Valley turn-on MOSFET to achieve high efficiency
1)
Connect the input pin N of the Evaluation Board via the
main power switch to AC power supply N.
2)
Connect the input pin L of the Evaluation L.
3)
Turn on the power supply.
for buck application

Few external components

1A sourcing current and 2A sinking current

multiple protections
Ordering Information
PART#
IS31LT3932-GRLS2-TR
TEMP
IC
RANGE
PACKAGE
-40 to 125°C
SOP-8
Applications

LED bulb

LED Tube lamp
For pricing, delivery, and ordering information, please contact ISSI at [email protected]
or call +1-408-969-6600
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IS31LT3932 ISO Bulb Lighting Evaluation Board Guide
Figure 1 IS31LT3932 Evaluation Board Schematic
Note: ISSI Evaluation Board does include a LED array
Figure 2 Picture of Evaluation Board
NOTE: Physical dimensions of power board are (L×W×H): 53mm×20mm×15mm
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IS31LT3932 ISO Bulb Lighting Evaluation Board Guide
PCB Layout
Figure 3 PCB Layout – Top layer
Figure 4 PCB Layout – Bottom layer
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IS31LT3932 ISO Bulb Lighting Evaluation Board Guide
Bill of Materials
No.
Name
1
FUSE
2
Bridge rectifier
3
Inductor
4
Description
Ref Des.
Qty.
1A250V Φ3
F1
1
MB6S
BD1
1
3.3mH 0510
L1,L2,L3
3
Resistor
5.5kΩ 1%
0805
R2,R4,R13
3
5
Resistor
1M Ω 1%
1206
R5,R9
2
6
Resistor
13kΩ 1%
0805
R18
1
7
Resistor
300kΩ 1% 1206
R6,R10,R3
3
8
Resistor
240kΩ 1%
R17
1
9
Resistor
1.0Ω 1%
1206
R20
1
10
Resistor
200Ω 1%
0805
R7
1
11
Resistor
10kΩ 1%
0805
R23
1
12
Resistor
240kΩ 1%
0805
R22
1
14
Resistor
68k Ω 1%
1206
R8
1
15
Resistor
0Ω 1%
0603
R12
1
16
Resistor
NC
R21,R1,C1,C5,C11,R14,D3
0
17
CBB-CAP
100nF 400V
C1
1
18
SMD-CAP
1nF 1000V
1206
C8,C2
2
19
E-CAP
220uF 50V
0810
C3,C4
2
20
SMD-CAP
1nF 25V
C7
1
21
SMD-CAP
1uF
C10
1
22
SMD-CAP
10uF
C9
1
23
SMD-DIODE
ES1J
D5,D2
2
24
SMD-DIODE
1N4007
SOD-123
D6
1
25
SMD-DIODE
1N4148
SOD-80
D4
1
26
SMD-ZENER
39V
SOD-80
D7
1
27
MOS
2N80B
TO-251
Q1
1
28
IC
IS31LT3932
SOP-8
U1
1
29
TRANSFORMER
TR
1
30
Y1-CAP
CY
1
31
TH-Diode
D1
1
MBS
0805
pin10
X7R
50V
0805
X7R 1206
50V
X7R
0805
SMA
1%
EE16 5+5
1nF 250/275Vac
SB5200
Pin10
DO-201AD
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Mfr
P/N
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IS31LT3932 ISO Bulb Lighting Evaluation Board Guide
Transformer Design
ELECTRICAL SPECIFCATIONS:
1.Primary inductance(Lp)[email protected]
2. Primary Leakage Inductance (Lk)< = 30uH @10KHz
3. Electrical Strength = 3KV, 50/60Hz,1Min
MATERIALS:
1. Core:EE16(Ferrite Material TDK PC40 or equivalent)
2. Bobin:EE16 Primary 5,Secondary:5
3.. Magnet Wires (Pri) : Type 2-UEW
4. Magnet Wire (Sec) : Triple Insulated Wires
5. Layer Insulation Tape :3M1298 or equivalent.
SCHEMTIC
No
winding
start
end
Wires
1
N1
3
2
86T
0.18mm-QA
9mm-3
2
N2
A
B
44T
0.18mm-TEX
9mm-3
3
N3
2
1
43T
0.18mm-QA
9mm-2
4
N4
4
5
40T
0.18mm-QA
9mm-2
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Tape
5
Float 2cm
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IS31LT3932 ISO Bulb Lighting Evaluation Board Guide
Test data
DATA Vin 85 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 265 5LED PF 0.998 0.998 0.997 0.995 0.993 0.991 0.988 0.984 0.977 0.970 0.966 0.958 0.951 0.943 0.937 0.927 0.920 0.908 0.902 0.899 THD 2.5% 2.4% 2.6% 3.2% 3.6% 4.7% 5.3% 6.9% 8.3% 9.6% 10.7% 12.8% 13.9% 16.4% 18.1% 20.2% 22.3% 24.3% 25.5% 26.5% Integrated Silicon Solution, Inc. – www.issi.com
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PIN 3.38 3.37 3.46 3.41 3.54 3.49 3.57 3.55 3.42 3.39 3.49 3.50 3.57 3.56 3.67 3.67 3.75 3.73 3.87 3.90 6
VOUT 14.70 14.69 14.72 14.70 14.79 14.78 14.75 14.75 14.69 14.69 14.71 14.70 14.71 14.70 14.79 14.79 14.74 14.73 14.82 14.83 IOUT 186 186 192 191 198 196 200 199 193 191 195 196 199 199 203 202 206 204 209 212 eff.. 80.893% 81.078% 81.683% 82.337% 82.724% 83.005% 82.633% 82.683% 82.900% 82.767% 82.191% 82.320% 81.997% 82.171% 81.808% 81.405% 80.972% 80.561% 80.036% 80.614% 6
IS31LT3932 ISO Bulb Lighting Evaluation Board Guide
DATA Vin 85 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 265 6LED PF 0.999 0.998 0.998 0.997 0.995 0.993 0.991 0.988 0.984 0.979 0.976 0.968 0.964 0.957 0.952 0.944 0.938 0.930 0.923 0.920 THD 2.3% 2.2% 2.7% 2.7% 3.1% 3.8% 4.2% 5.4% 6.7% 7.5% 8.5% 10.3% 11.6% 12.9% 13.8% 15.4% 18.1% 18.6% 21.5% 20.8% Integrated Silicon Solution, Inc. – www.issi.com
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PIN 3.99 4.09 4.09 4.00 4.14 4.09 4.23 4.19 4.06 4.04 4.14 4.11 4.19 4.20 4.37 4.35 4.40 4.47 4.52 4.58 VOUT 17.56 17.59 17.59 17.57 17.61 17.59 17.65 17.63 17.59 17.58 17.61 17.58 17.60 17.59 17.63 17.63 17.64 17.65 17.65 17.67 IOUT 185 190 191 190 196 194 200 199 193 192 196 195 198 198 202 204 205 207 209 211 eff.. 81.419% 81.714% 82.144% 83.458% 83.371% 83.434% 83.452% 83.732% 83.617% 83.549% 83.371% 83.409% 83.169% 82.924% 81.493% 82.679% 82.186% 81.735% 81.612% 81.405% 7
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IS31LT3932 ISO Bulb Lighting Evaluation Board Guide
DATA Vin 85 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 265 7LED PF 0.999 0.999 0.998 0.998 0.997 0.996 0.994 0.992 0.988 0.985 0.981 0.978 0.973 0.968 0.962 0.956 0.950 0.945 0.939 0.936 THD 2.3% 2.3% 2.5% 2.5% 2.7% 3.1% 3.5% 4.2% 5.3% 6.4% 6.9% 7.9% 9.8% 10.6% 12.2% 13.0% 14.4% 15.2% 17.1% 18.4% PIN 4.81 4.72 4.70 4.77 4.79 4.86 4.85 4.93 4.66 4.73 4.78 4.85 4.82 4.89 4.93 5.00 5.07 5.17 5.21 5.27 VOUT 20.56 20.43 20.47 20.60 20.45 20.63 20.46 20.63 20.44 20.55 20.46 20.62 20.45 20.59 20.52 20.57 20.50 20.67 20.56 20.63 IOUT 189 188 189 193 195 197 199 201 192 194 197 198 198 199 201 203 205 206 208 210 eff.. 80.787% 81.374% 82.316% 83.350% 83.252% 83.624% 83.949% 84.110% 84.216% 84.285% 84.323% 84.181% 84.006% 83.792% 83.662% 83.514% 82.890% 82.360% 82.082% 82.207% Integrated Silicon Solution, Inc. – www.issi.com
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IS31LT3932 ISO Bulb Lighting Evaluation Board Guide
DATA Vin 85 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 265 8LED PF 1.000 0.999 0.999 0.998 0.997 0.996 0.995 0.994 0.990 0.988 0.985 0.982 0.978 0.974 0.970 0.965 0.960 0.953 0.949 0.946 THD 2.3% 2.4% 2.5% 2.4% 2.3% 2.7% 3.2% 3.6% 4.5% 5.1% 5.8% 6.7% 8.2% 9.1% 10.3% 11.2% 12.7% 13.3% 15.5% 14.9% Integrated Silicon Solution, Inc. – www.issi.com
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PIN 5.45 5.34 5.34 5.36 5.39 5.46 5.49 5.55 5.27 5.34 5.41 5.47 5.46 5.54 5.60 5.64 5.69 5.76 5.84 5.92 9
VOUT 23.33 23.29 23.25 23.40 23.33 23.40 23.35 23.44 23.33 23.38 23.36 23.47 23.35 23.43 23.41 23.42 23.41 23.43 23.44 23.49 IOUT 188 187 189 190 193 197 198 200 191 193 196 197 197 199 201 202 203 205 207 209 eff.. 80.478% 81.559% 82.289% 82.948% 83.538% 84.429% 84.213% 84.468% 84.555% 84.501% 84.631% 84.526% 84.248% 84.162% 84.025% 83.880% 83.519% 83.388% 83.084% 82.929% 9
IS31LT3932 ISO Bulb Lighting Evaluation Board Guide
DATA Vin 85 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 265 9LED PF 1.000 1.000 0.999 0.998 0.998 0.997 0.996 0.995 0.992 0.990 0.988 0.985 0.982 0.979 0.975 0.972 0.967 0.963 0.959 0.957 THD 2.3% 2.3% 2.3% 2.4% 2.4% 2.5% 2.7% 3.2% 3.8% 4.4% 5.1% 5.9% 6.7% 8.0% 8.4% 9.2% 10.5% 11.1% 13.0% 13.4% PIN 6.13 6.03 6.00 6.00 6.03 6.07 6.12 6.19 5.90 5.96 6.05 6.11 6.13 6.20 6.29 6.37 6.40 6.52 6.55 6.65 VOUT 26.28 26.26 26.25 26.23 26.23 26.32 26.28 26.37 26.27 26.28 26.25 26.36 26.29 26.31 26.30 26.44 26.30 26.31 26.31 26.51 IOUT 187 187 188 190 192 194 197 199 191 192 195 196 197 198 201 202 204 206 208 208 eff.. 80.169% 81.436% 82.250% 83.062% 83.518% 84.120% 84.594% 84.776% 85.044% 84.660% 84.607% 84.559% 84.488% 84.022% 84.043% 83.844% 83.831% 83.127% 83.549% 82.918% Integrated Silicon Solution, Inc. – www.issi.com
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IS31LT3932 ISO Bulb Lighting Evaluation Board Guide
DATA Vin 85 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 265 10LED PF 1.000 1.000 0.999 0.999 0.998 0.998 0.997 0.996 0.994 0.992 0.990 0.988 0.986 0.983 0.980 0.977 0.973 0.969 0.965 0.963 THD 2.2% 2.2% 2.4% 2.4% 2.4% 2.4% 2.6% 2.8% 3.5% 4.1% 4.7% 5.1% 5.7% 6.9% 7.2% 8.6% 9.3% 9.8% 10.7% 11.4% Integrated Silicon Solution, Inc. – www.issi.com
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PIN 6.73 6.70 6.64 6.61 6.66 6.69 6.74 6.81 6.48 6.54 6.66 6.70 6.74 6.81 6.93 6.99 7.09 7.15 7.27 7.31 11
VOUT 28.93 28.95 28.98 29.11 29.13 29.15 29.17 29.18 29.07 29.11 29.15 29.16 29.15 29.17 29.20 29.22 29.22 29.22 29.23 29.27 IOUT 186 186 188 189 191 193 195 197 190 190 194 196 196 198 201 202 204 205 208 209 eff.. 79.955% 80.369% 82.052% 83.234% 83.541% 84.095% 84.394% 84.412% 85.236% 84.454% 84.795% 85.275% 84.798% 84.753% 84.606% 84.383% 84.074% 83.778% 83.601% 83.571% 11
IS31LT3932 ISO Bulb Lighting Evaluation Board Guide
Line Regulation
PF
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IS31LT3932 ISO Bulb Lighting Evaluation Board Guide
THD
Efficiency
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IS31LT3932 ISO Bulb Lighting Evaluation Board Guide
Load Regulation
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IS31LT3932 ISO Bulb Lighting Evaluation Board Guide
EMI test Report
Figure 5. L line
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IS31LT3932 ISO Bulb Lighting Evaluation Board Guide
Figure 6. N line
Copyright © 2011 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.
Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of
the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products
are not authorized for use in such applications unless Integrated Silicon Solution, Inc. receives written assurance to its satisfaction, that:
a.) the risk of injury or damage has been minimized;
b.) the user assume all such risks; and
c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances.
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