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PS8551L4
ANALOG OUTPUT TYPE
OPTICAL COUPLED ISOLATION AMPLIFIER
Preliminary Data Sheet
R08DS0039EJ0200
Rev.2.00
Sep 06, 2011
DESCRIPTION
The PS8551L4 is an optically coupled isolation amplifier that uses an IC with a high-accuracy sigma-delta A/D
converter and a GaAIAs light-emitting diode with high-speed response and high luminance efficiency on the input side,
and an IC with a high-accuracy D/A converter on the output side.
The PS8551L4 is designed specifically for high common mode transient immunity (CMTI) and high linearity (non-
linearity). The PS8551L4 is suitable for current sensing in motor drives.
FEATURES
• Non-linearity (NL200 = 0.35% MAX.)
• High common mode transient immunity (CMTI = 10 kV/μs MIN.)
• High isolation voltage (BV = 5 000 Vr.m.s.)
• Gain tolerance (G = 7.76 to 8.24 (±3%))
Gain: 8 V/V TYP.
• Package: 8-pin DIP lead bending type (Gull-wing) for long creepage distance for
surface mount (L4)
• Embossed tape product: PS8551L4-E3 : 1 000 pcs/reel
• Pb-Free product
• Safety standards
• UL approved: No. E72422
• CSA approved: No. CA 101391 (CA5A, CAN/CSA-C22.2 60065, 60950)
• SEMKO approved: No. 1111155
• DIN EN60747-5-2 (VDE0884 Part2) approved: No. 40019182www.DataSheet.co.kr (Option)
PIN CONNECTION
(Top View)
8765
1234
1. VDD1
2. VIN+
3. VIN–
4. GND1
5. GND2
6. VOUT–
7. VOUT+
8. VDD2
APPLICATIONS
• AC Servo, inverter
• Measurement equipment
The mark <R> shows major revised points.
The revised points can be easily searched by copying an "<R>" in the PDF file and specifying it in the "Find what:" field.
R08DS0039EJ0200 Rev.2.00
Sep 06, 2011
Page 1 of 17
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PS8551L4
PACKAGE DIMENSIONS (UNIT: mm)
Lead Bending Type (Gull-wing) For Long Creepage Distance For Surface Mount (L4)
Chapter Title
9.25+–00..255
1.01+–00..24
10.05±0.4
6.5+–00..15
0.5±0.15
2.54
0.62±0.25
PHOTOCOUPLER CONSTRUCTION
Parameter
Air Distance
Outer Creepage Distance
Isolation Distance
Unit (MIN.)
8 mm
8 mm
0.4 mm
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R08DS0039EJ0200 Rev.2.00
Sep 06, 2011
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PS8551L4
<R> MARKING EXAMPLE
Chapter Title
No. 1 pin
Mark
R
8551
NT131
Company Initial
Type Number
Assembly Lot
N T 1 31
Week Assembled
Year Assembled
(Last 1 Digit)
In-house Code
(T: Pb-Free)
Rank Code
ORDERING INFORMATION
Part Number
Order Number
Solder Plating
Specification
Packing Style
Safety Standard
Approval
PS8551L4
PS8551L4-AX
Pb-Free
Magazine case 50 pcs
Standard products
PS8551L4-E3 PS8551L4-E3-AX (Ni/Pd/Au)
Embossed Tape 1 000 pcs/reel (UL, CSA, SEMKO
approved)
PS8551L4-V
PS8551L4-V-AX
PS8551L4-V-E3 PS8551L4-V-E3-AX
Magazine case 50 pcs
www.DataSheet.co.kr
Embossed Tape 1 000 pcs/reel
DIN EN60747-5-2
(VDE0884 Part2)
Approved (Option)
Application Part
Number*1
PS8551L4
*1 For the application of the Safety Standard, following part number should be used.
R08DS0039EJ0200 Rev.2.00
Sep 06, 2011
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PS8551L4
ABSOLUTE MAXIMUM RATINGS (TA = 25°C, unless otherwise specified)
Parameter
Operating Ambient Temperature
Storage Temperature
Supply Voltage
Input Voltage
2 Seconds Transient Input Voltage
Output Voltage
Isolation Voltage*1
Symbol
TA
Tstg
VDD1, VDD2
VIN+, VIN
VIN+, VIN
VOUT+, VOUT
BV
Ratings
40 to 85
55 to125
0 to 5.5
2 to VDD10.5
6 to VDD10.5
0.5 to VDD20.5
5 000
Unit
°C
°C
V
V
V
V
Vr.m.s.
*1 AC voltage for 1 minute at TA = 25°C, RH = 60% between input and output.
Pins 1-4 shorted together, 5-8 shorted together.
RECOMMENDED OPERATING CONDITIONS
Parameter
Operating Ambient Temperature
Supply Voltage
Input Voltage
(Accurate and Linear) *1
Symbol
TA
VDD1, VDD2
VIN+, VIN
MIN.
40
4.5
200
MAX.
85
5.5
200
Unit
°C
V
mV
Chapter Title
*1 Using VIN= 0 V (to be connected to GND1) is recommended. Avoid using VINof 2.5 V or more, because the
internal test mode is activated when the voltage VINreaches more than 2.5 V.
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R08DS0039EJ0200 Rev.2.00
Sep 06, 2011
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PS8551L4
Chapter Title
ELECTRICAL CHARACTERISTICS (DC Characteristics)
(TYP.: TA = 25°C, VIN+ = VIN= 0 V, VDD1 = VDD2 = 5 V,
MIN., MAX.: refer to RECOMMENDED OPERATING CONDITIONS, unless otherwise specified)
Parameter
Input Offset Voltage
Symbol
Vos
Conditions
TA = 25°C
<R>
Input Offset Voltage Drift
vs. Temperature
dVos/dTATA = 25 to +85°C
Gain *1
G 200 mV VIN+ 200 mV,
TA = 25°C
Gain Drift vs. Temperature
dG/dTA
VOUT Non-linearity (200 mV) *2
NL200 200 mV VIN+ 200 mV
VOUT Non-linearity (200 mV) Drift
vs. Temperature
dNL200/dTA
VOUT Non-linearity (100 mV) *2
NL100 100 mV VIN+ 100 mV
Maximum Input Voltage before VOUT
Clipping
VIN+MAX.
Input Supply Current
IDD1
VIN+ = 400 mV
Output Supply Current
IDD2 VIN+ = 400 mV
Input Bias Current
IIN+ VIN+ = 0V
Input Bias Current Drift
vs. Temperature
dIIN+/dTA
Low Level Saturated Output Voltage
VOL VIN+ = 400 mV
High Level Saturated Output Voltage
Output Voltage (VIN+ = VIN= 0 V)
VOH
VOCM
VIN+ = 400 mV
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VIN+ = VIN= 0 V
Output Short-circuit Current
IOSC
Equivalent Input Resistance
RIN
VOUT Output Resistance
ROUT
Input DC Common-Mode Rejection
Ratio*3
CMRRIN
MIN.
2
3
TYP.
0.3
3
MAX.
2
3
10
Unit
mV
μV/°C
7.76 8 8.24 V/V
0.00087
0.021
0.0002
0.35
V/V°C
%
%/°C
0.014
308
0.2
%
mV
16 20 mA
10 16 mA
0.5 5 μA
0.45 nA/°C
1.29 V
3.8 V
2.2 2.55 2.8
V
18.6 mA
320 kΩ
15 Ω
76 dB
*1 The differential output voltage (VOUT+ VOUT) with respect to the differential input voltage (VIN+ VIN), where VIN+ =
200 mV to 200 mV and VIN= 0 V) is measured under the circuit shown in Fig. 2 NL200, G Test Circuit. Upon
the resulting chart, the gain is defined as the slope of the optimum line obtained by using the method of least
squares.
*2 The differential output voltage (VOUT+ VOUT) with respect to the differential input voltage (VIN+ VIN) is measured
under the circuit shown in Fig. 2 NL200, G Test Circuit. Upon the resulting chart, the optimum line is obtained by
using the method of least squares. Non-linearity is defined as the ratio (%) of the optimum line obtained by dividing
[Half of the peak to peak value of the (residual) deviation] by [full-scale differential output voltage].
For example, if the differential output voltage is 3.2 V, and the peak to peak value of the (residual) deviation is 22.4
mV, while the input VIN+ is ±200 mV, the output non-linearity is obtained as follows:
NL200 = 22.4/(2 × 3 200) = 0.35%
*3 CMRRIN is defined as the ratio of the differential signal gain (when the differential signal is applied between the
input pins) to the common-mode signal gain (when both input pins are connected and the signal is applied). This
value is indicated in dB.
R08DS0039EJ0200 Rev.2.00
Sep 06, 2011
Page 5 of 17
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