SECOS SPW8103S

SPW8103S
Dual OP-AMP and 2.5V± 0.7%
Elektronische Bauelemente
Voltage Reference
RoHS Compliant Product
Description
SOP-8
The SPW8103S consists of 2 low-offset voltage amplifiers and
a high-accuracy 2.5V voltage reference in SOP-8 package.
The SPW8103S provides a low cost and space saving solution
for the application such as power supply and switching adapters.
The SPW8103S is available in a SOP-8 package. It can operate
o
o
over the ambient temperature range from -40 C to 105 C.
45
3.80
4.00
1.27 Typ.
4.80
5.00
0.10 0.25
o
* VREF Sinking Current Capability : 1mA to 100 mA
0.375 REF
0.25
0
o
8
* Max. 27V Voltage
Rating
±
o
6.20
5.80
0.35
0.49
Features
0.19
0.25
0.40
0.90
1.35
1.75
Dimensions in millimeters
* Low Input Offset Voltage
* Precision ± 0.7% Voltage Reference
Appliactions
* Adapter
* Switching Power Supply
* Portable Device
Typical Circuit
Block Diagram
SPW8103S
rogrammed by
pacitor CT to ground .Operation 500kHz
The oscillator frequency and maximum output duty cycle are programmed
nts upbyto
pacitor CT to ground .Operation 500kHz
Fig 1. CC/CV Control for Switching Adapters
Pin Descriptions
Pin
1
2
3
4
5
6
7
8
http://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
Name
OUT1
IN1IN1+
GND
IN2+
IN2OUT2
VCC
This is the reference output .It provides charging current for capacitor CT
This output directly drives the gate of a power MOSFET. Peak currents up to
Function
This is the reference output
.It provides charging current for capacitor CT
Output of Op-amp 1
Negative terminal of Op-amp 1
Positive terminal of Op-amp 1, connected to internal reference voltage
Ground
Positive terminal of Op-amp 2
Negative terminal of Op-amp 2
Output of Op-amp 2
Supply voltage
Any changing of specification will not be informed individual
Page 1 of 4
SPW8103S
Dual OP-AMP and 2.5V± 0.7%
Elektronische Bauelemente
Voltage Reference
Absolute Maximum Ratings
Parameter
Supply Voltage VCC
Differential Input Voltage(IN1+ to IN1-, IN2+ to IN2-)
Input Voltage
Maximum Junction Temperature
Operating Ambient Temperature Range
Storage Temperature Range
Lead Temperature (PB Free, 10sec)
Junction-to-Ambient Thermal Resistance
ESD Level (Human Body Model)
Ratings
27
27
-0.3 ~ VCC+0.3V
150
-40 ~ + 105
-65 ~ + 150
260
160
2k
Unit
V
V
V
/W
V
Caution:
Stresses beyond the ratings in “Absolute maximum ratings” may cause permanent damage to the device. This is a stress only rating and
operation of device at these or any other conditions above those indicated in the operational sections of this specification is not limited.
Electrical Characteristics
Parameter
Test Conditions
VCC=5V, -40 ~105
Total Supply Current (No Load)
VCC=27V, -40 ~105
(VCC=+5V, TA=+25 unless otherwise stated)
Parameter
OP-Amp1 & OP-Amp2
Input Offset Voltage
(Common mode Voltage=0V)
Input Offset Voltage Drift
Input Bias Current (OP1)
Test Conditions
25
-40 ~105
25
25
Input Bias Current (OP2)
-40 ~105
VCC=15V, VO=2V
Output Source Current
Differential Input Voltage=1V
VCC=15V, VO=2V
Differential Input Voltage=-1V
Output Sink Current
VCC=15V, VO=0.2V
Differential Input Voltage=-1V
Output Short Current
VCC=15V
VCC=27V, RL=2k , 25
VCC=27V, RL=2k , -40 ~105
Output Voltage – High Level
VCC=27V, RL=10k , 25
VCC=27V, RL=10k , -40 ~105
RL=10k , 25
Output Voltage – Low Level
RL=10k , -40 ~105
Common mode Voltage=0V
Large Signal Voltage Gain (OP1) VCC=15V, RL=2k
VO=1.4V~11.4V, -40 ~105
VCC=15V, RL=2k , VO=1.4V~11.4V, 25
Large Signal Voltage Gain (OP2)
VCC=15V, RL=2k , VO=1.4V~11.4V, -40 ~105
VIN=0.5V~2V, VCC=15V
Slew Rate at Unity Gail
RL=2k , CL=100pF, Unity Gain
Supply Voltage Rejection Ratio
Common mode Voltage=0V, VCC=5~27V
Gain Bandwidth Product
VCC=27V, RL=2k , CL=100pF, f=100kHz, VIN=10mV
VCC=27V, RL=2k , CL=100pF
Total Harmonic Distortion
VO=2VPP, f=1kHz, AV=20dB
http://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
Min
Typ
Max
Unit
-
0.7
-
1.2
2
mA
Min
Typ
Max
Unit
-
1
7
20
20
-
4
5
150
200
20
40
-
mA
10
-
-
mA
12
50
-
A
23
23
24
24
-
40
24
25
5
-
60
20
20
mA
-
100
-
V/mV
50
25
100
-
-
V/mV
0.2
0.4
-
V/ S
65
0.5
100
0.9
-
dB
MHz
-
0.02
-
%
mV
V/
nA
nA
V
mV
Any changing of specification will not be informed individual
Page 2 of 4
SPW8103S
Elektronische Bauelemente
Dual OP-AMP and 2.5V± 0.7%
Voltage Reference
OP-Amp2
0
0
70
60
-
2
85
50
75
150
VCC-1.5
VCC-2
-
Reference Voltage (IK=10mA)
1
2.482
2.465
2.500
2.500
100
2.518
2.535
mA
25
-40 ~105
Reference Input Voltage Deviation
Over Temperature Range(IK=10mA)
-40 (UVLO)
~105
-
7
30
mV
-
0.5
1
mA
-
0.2
0.5
Input Offset Current
Input Common Mode Voltage
Range
Common Mode Rejection Ratio
Equivalent Input Noise Voltage
Reference Voltage
Cathode Current
25
-40 ~105
VCC=27V, 25
VCC=27V, -40 ~105
25
-40 ~105
f=1kHz, RS=100 ,VCC=27V
Minimum Cathode Current for
Regulator
Dynamic Impedance
ht tp://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
IK=1~100mA, f<1kHz
-
-
nA
V
dB
nV/
Hz
V
Any changing of specification will not be informed individual
Page 3 of 4
SPW8103S
Dual OP-AMP and 2.5V± 0.7%
Elektronische Bauelemente
Voltage Reference
Application Information—CC/CV Control for Switching Adapters
http://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
Any changing of specification will not be informed individual
Page 4 of 4