KA2803BDTF [ONSEMI]
接地漏电流检测器;
| 型号： | KA2803BDTF |
| 厂家： | 
ONSEMI |
| 描述： | 接地漏电流检测器 PC 光电二极管 |
| 文件： | 总13页 (文件大小：833K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Earth Leakage Detector
KA2803
Description
The KA2803 is designed for use in earth leakage circuit interrupters,
for operation directly off the AC line in breakers. The input of the
differential amplifier is connected to the secondary coil of Zero
Current Transformer (ZCT). The amplified output of differential
amplifier is integrated at external capacitor to gain adequate time
delay. The level comparator generates a high level when earth leakage
current is greater than the fixed level.
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Features
8
• Low Power Consumption: 5 mW, 100 V/200 V
• Built-in Voltage Regulator
1
SOIC8
CASE 751EB
PDIP−8
CASE 626−05
• High-gain Differential Amplifier
• 0.4 mA Output Current Pulse to Trigger SCRs
• Low External Part Count
MARKING DIAGRAM
• SOP Package, High Packing Density
• High Noise Immunity, Large Surge Margin
• Super Temperature Characteristic of Input Sensitivity
• Wide Operating Temperature Range:
$Y&Z&2&K
KA2803B
$Y&Z&2&K
2803X
T =−25°C to +80°C for KA2803B and KA2803BDTF
A
T = −25°C to +100°C for KA2803CDTF
A
• Operation from 12 V to 20 V Input
Functions
$Y
&Z
&2
&K
= ON Semiconductor Logo
= Assembly Plant Code
= Data Code (Year & Week)
= Lot
= Specific Device Code
X = B or C
• Differential Amplifier
• Level Comparator
• Latch Circuit
KA2803B or 2803X
ORDERING INFORMATION
See detailed ordering and shipping information on page 10 of
this data sheet.
© Semiconductor Components Industries, LLC, 2016
1
Publication Order Number:
August, 2020 − Rev. 7
KA2803/D
KA2803
BLOCK DIAGRAM
Figure 1. Block Diagram
PIN CONFIGURATION
VR
VI
VCC
OS
1
8
7
2
NR
GND
OD
3
6
4
5
SC
Figure 2. Pin Assignment
PIN DESCRIPTION
Pin No.
Name
Description
1
2
3
4
5
6
7
8
VR
VI
Non inverting input for current sensing amplifier
Inverting Input for current sensing amplifier
Ground
GND
OD
SC
Output of current sensing amplifier
Input of latch circuit
NR
Noise absorption
OS
Gate drive for external SCR
Power supply input for KA2803 circuitry
VCC
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2
KA2803
APPLICATION CIRCUITS
Figure 3. Full-wave Application Circuit
Figure 4. Half-wave Application Circuit
APPLICATION INFORMATION
(Refer to full-wave application circuit in Figure 3)
Figure 3 shows the KA2803 connected in a typical
leakage current detector system. The power is applied to the
(KA2803). The range of R is from several hundred W to
P
several kW.
V
CC
terminal (Pin 8) directly from the power line. The
Capacitor C is for the noise canceller and a standard value
1
resistor R and capacitor C are chosen so that Pin 8 voltage
of C is 0.047 mF. Capacitor C is also a noise canceller
S
S
1
2
is at least 12 V. The value of C is recommended above 1 mF.
capacitance, but it is not usually used.
S
If the leakage current is at the load, it is detected by the
Zero Current Transformer (ZCT). The output voltage signal
of ZCT is amplified by the differential amplifier of the
KA2803 internal circuit and appears as a half-cycle sine
wave signal referred to input signal at the output of the
amplifier. The amplifier closed-loop gain is fixed about
1000 times with internal feedback resistor to compensate for
When high noise is present, a 0.047 mF capacitor may be
connected between Pins 6 and 7. The amplified signal finally
appears at the Pin 7 with pulse signal through the internal
latch circuit of the KA2803. This signal drives the gate of the
external SCR, which energizes the trip coil, which opens the
circuit breaker. The trip time of the breaker is determined by
capacitor C and the mechanism breaker. This capacitor
3
Zero Current Transformer (ZCT) variations. The resistor R
should be selected so that the breaker satisfies the required
should be selected under 1 mF to satisfy the required trip
time. The full-wave bridge supplies power to the KA2803
during both the positive and negative half cycles of the line
voltage. This allows the hot and neutral lines to be
interchanged.
L
sensing current. The protection resistor R is not usually
P
used when high current is injected at the breaker; this resistor
should be used to protect the earth leakage detector IC
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3
KA2803
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Min.
Max.
20
Unit
V
VCC
ICC
Supply Voltage
Supply Current
Power Dissipation
8
mA
mW
P
D
300
T
T
Lead Temperature, Soldering 10 Seconds
260
80
°C
°C
°C
L
Operation Temperature Range for KA2803B and KA2803BDTF
Operation Temperature Range for KA2803CDTF
−25
−25
A
+100
TSTG
Storage Temperature Range
−65
+150
°C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
RECOMMENDED OPERATING CONDITIONS (For KA2803B and KA2803BDTF, T = −25°C to 80°C unless otherwise noted. For
A
KA2803CDTF, T = −25°C to +100°C unless otherwise noted.)
A
Symbol
Parameter
Conditions
T = −25°C
Test Circuit
Min.
300
14
Typ.
400
16
Max.
580
530
480
18
Units
ICC
Supply Current 1
V
V
I
= 12V,
Figure 5
mA
CC
R
A
= OPEN,
T = +25°C
A
V = 2 V
T = +100°C
A
V
T
Trip Voltage
V
V
= 16 V,
T = +25°C
A
Figure 6
Figure 8
Figure 9
Figure 10
mV
(rms)
CC
R
= 2 V~2.02 V,
V = 2 V
I
IO(D)
Differential Amplifier
Current Current 1
V
CC
= 16 V,
T = +25°C
A
−12
−20
−30
mA
V ~V = 30 mV,
R
OD
I
V
= 1.2 V
Differential Amplifier
Current Current 2
V
CC
V
OD
= 16 V,
T = +25°C
A
17
27
37
= 0.8 V,V ,
R
V Short = V
I
P
I
O
Output Current
V
SC
V
OS
V
CC
= 1.4 V,
T = −25°C
A
200
200
100
0.7
400
400
300
1.0
−7
800
800
600
1.4
mA
= 0.8 V,
T = +25°C
A
= 16.0 V
T = +100°C
A
VSCON
ISCON
IOSL
Latch-On Voltage
Latch Input Current
Output Low Current
V
CC
V
CC
V
CC
V
CC
= 16 V
Figure 11
Figure 12
Figure 13
Figure 14
V
mA
mA
V
= 16 V
−13
200
0.4
−1
= 12 V, V
= 0.2 V
800
1.2
1400
2.0
OSL
VIDC
Differential Input Clamp
Voltage
= 16 V, I
= 100 mA
IDC
VSM
Maximum Current
Voltage
I
= 7 mA
Figure 15
20
24
28
V
SM
IS2
Supply Current 2
V
V
V
= 12.0 V, V
= 12.0 V
= 1.8 V
= 0.6 V
Figure 16
Figure 17
200
7
400
8
900
9
mA
CC
OSL
VSOFF
Latch-Off Supply Voltage
V
OS
SC
I
= 100.0 mA
IDC
tON
Response Time
V
= 16 V, V −V = 0.3 V,
X
Figure 18
2
3
4
ms
CC
R
I
1 V < V < 5 V
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
1. Guaranteed by design, not tested in production.
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4
KA2803
TEST CIRCUITS
0.047 mF
0.047 mF
Figure 5. Supply Current 1
Figure 6. Trip Voltage
0.047 mF
Figure 7. VPN1 for VP Measurement
Figure 8. Differential Amplifier Output Current 1
0.047 mF
Figure 9. Differential Amplifier Output Current 2
Figure 10. Output Current
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5
KA2803
TEST CIRCUITS (Continued)
0.047 mF
0.047 mF
Figure 11. Latch-On Voltage
Figure 12. Latch Input Current
0.047 mF
Figure 13. Output Low Current
Figure 14. Differential Input Clamp Voltage
0.047 mF
0.047 mF
Figure 15. Maximum Current Voltage
Figure 16. Supply Current 2
0.047 mF
0.047 mF
Figure 17. Latch-Off Supply Voltage
Figure 18. Response Time
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6
KA2803
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 19. Supply Current
Figure 20. Differential Amplifier Output Current
(VR − VI = 30 mV, VOD = 1.2 V)
Figure 21. Differential Amplifier Output Current
(VR, VI = VP, VOD = 0.8 V)
Figure 22. Output Current
Figure 23. Output Low Current
Figure 24. VCC Voltage vs. Supply Current 1
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7
KA2803
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Figure 25. Differential Amplifier Output Current 1
Figure 26. Differential Amplifier Output
Figure 27. Latch Input Current
Figure 28. Output Low Current
Figure 29. Output Current
Figure 30. VCC Voltage vs. Supply Current 2
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8
KA2803
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Figure 31. Differential Input Clamp Voltage
Figure 32. Latch−Off Supply Voltage
Figure 33. Latch−On Input Voltage
Figure 34. Maximum Supply
Figure 35. Trip and Output
Figure 36. Output Response Time
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9
KA2803
ORDERING INFORMATION
Part Number
†
Operating Temperature Range
−25 to +100°C
Package
Shipping
KA2803CDTF
8-lead, Small Outline Package (SOP)
8-lead, Plastic Dual Inline Package (PDIP)
8-lead, Small Outline Package (SOP)
3,000 / Tape& Reel
3,000 / Tube
KA2803B
−25 to 80°C
KA2703BDTF
−25 to 80°C
3,000 / Tape& Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
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10
MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
PDIP−8
CASE 626−05
ISSUE P
DATE 22 APR 2015
SCALE 1:1
NOTES:
D
A
1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: INCHES.
E
3. DIMENSIONS A, A1 AND L ARE MEASURED WITH THE PACK-
AGE SEATED IN JEDEC SEATING PLANE GAUGE GS−3.
4. DIMENSIONS D, D1 AND E1 DO NOT INCLUDE MOLD FLASH
OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS ARE
NOT TO EXCEED 0.10 INCH.
5. DIMENSION E IS MEASURED AT A POINT 0.015 BELOW DATUM
PLANE H WITH THE LEADS CONSTRAINED PERPENDICULAR
TO DATUM C.
H
8
5
4
E1
1
6. DIMENSION eB IS MEASURED AT THE LEAD TIPS WITH THE
LEADS UNCONSTRAINED.
7. DATUM PLANE H IS COINCIDENT WITH THE BOTTOM OF THE
LEADS, WHERE THE LEADS EXIT THE BODY.
8. PACKAGE CONTOUR IS OPTIONAL (ROUNDED OR SQUARE
CORNERS).
NOTE 8
c
b2
B
END VIEW
WITH LEADS CONSTRAINED
TOP VIEW
NOTE 5
INCHES
DIM MIN MAX
−−−−
A1 0.015
MILLIMETERS
A2
A
MIN
−−−
0.38
2.92
0.35
MAX
5.33
−−−
4.95
0.56
e/2
A
0.210
−−−−
NOTE 3
A2 0.115 0.195
L
b
b2
C
0.014 0.022
0.060 TYP
0.008 0.014
0.355 0.400
1.52 TYP
0.20
9.02
0.13
7.62
6.10
0.36
10.16
−−−
8.26
7.11
D
SEATING
PLANE
D1 0.005
0.300 0.325
E1 0.240 0.280
−−−−
A1
D1
E
C
M
e
eB
L
0.100 BSC
−−−− 0.430
0.115 0.150
−−−− 10°
2.54 BSC
−−−
2.92
−−−
10.92
3.81
10°
e
eB
8X
b
END VIEW
M
NOTE 6
M
M
M
0.010
C A
B
SIDE VIEW
GENERIC
MARKING DIAGRAM*
STYLE 1:
PIN 1. AC IN
2. DC + IN
3. DC − IN
4. AC IN
XXXXXXXXX
AWL
YYWWG
5. GROUND
6. OUTPUT
7. AUXILIARY
8. V
CC
XXXX = Specific Device Code
A
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
WL
YY
WW
G
*This information is generic. Please refer to
device data sheet for actual part marking.
Pb−Free indicator, “G” or microdot “ G”,
may or may not be present.
Electronic versions are uncontrolled except when accessed directly from the Document Repository.
Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red.
DOCUMENT NUMBER:
DESCRIPTION:
98ASB42420B
PDIP−8
PAGE 1 OF 1
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically
disclaims any and all liability, including without limitation special, consequential or incidental damages. ON Semiconductor does not convey any license under its patent rights nor the
rights of others.
© Semiconductor Components Industries, LLC, 2019
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MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
SOIC8
CASE 751EB
ISSUE A
DATE 24 AUG 2017
Electronic versions are uncontrolled except when accessed directly from the Document Repository.
Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red.
DOCUMENT NUMBER:
DESCRIPTION:
98AON13735G
SOIC8
PAGE 1 OF 1
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically
disclaims any and all liability, including without limitation special, consequential or incidental damages. ON Semiconductor does not convey any license under its patent rights nor the
rights of others.
© Semiconductor Components Industries, LLC, 2019
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are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
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