SPW8103S SECOS | Alldatasheet

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Technical content

Features

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 over the ambient temperature range from -40 C to 105 C.

Description

01-Jun-2002 Rev. A Page 1 of 4 http://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual R o H S C o m p l i a n t P r o d u c t rogrammed by pacitor CT to ground .Operation 500kHz nts up to This is the reference output .It provides charging current for capacitor CT SOP-8 0.25 Dimensions in millimeters 6.20 5.80 1.27 Typ.0.35 0.49 4.80 5.00 0.10 0.25 1.35 1.75 0.40 0.90 0.19 0.25 3.80 4.00

0.375 REF

o o o The oscillator frequency and maximum output duty cycle are programmed by pacitor CT to ground .Operation 500kHz This output directly drives the gate of a power MOSFET. Peak currents up to This is the reference output .It provides charging current for capacitor CT Typical Circuit Block Diagram SPW8103S Fig 1. CC/CV Control for Switching Adapters Pin Descriptions Pin Name Function

1 OUT1 Output of Op-amp 1

2 IN1- Negative terminal of Op-amp 1

3 IN1+ Positive terminal of Op-amp 1, connected to internal reference voltage

4 GND Ground

5 IN2+ Positive terminal of Op-amp 2

6 IN2- Negative terminal of Op-amp 2

7 OUT2 Output of Op-amp 2

8 VCC Supply voltage

http://www.SeCoSGmbH.com/ Elektronische Bauelemente Any changing of specification will not be informed individual 01-Jun-2002 Rev. A Page 2 of 4 SPW8103S Dual OP-AMP and 2.5V 0.7% Voltage Reference Absolute Maximum Ratings Parameter Ratings Unit Supply Voltage VCC 27 V Differential Input Voltage(IN1+ to IN1-, IN2+ to IN2-) 27 V Input Voltage -0.3 ~ VCC+0.3V V Maximum Junction Temperature 150 : Operating Ambient Temperature Range -40 ~ + 105 : Storage Temperature Range -65 ~ + 150 : Lead Temperature (PB Free, 10sec) 260 : Junction-to-Ambient Thermal Resistance 160 :/W ESD Level (Human Body Model) 2k 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 Min Typ Max Unit VCC=5V, -40:~105: - 0.7 1.2 Total Supply Current (No Load) VCC=27V, -40:~105: - - 2 mA (VCC=+5V, TA=+25: unless otherwise stated) Parameter Test Conditions Min Typ Max Unit OP-Amp1 & OP-Amp2 25: - 1 4 Input Offset Voltage (Common mode Voltage=0V) -40:~105: - - 5 mV Input Offset Voltage Drift - 7 - V/: Input Bias Current (OP1) 25: - 20 - nA 25: - 20 150 Input Bias Current (OP2) -40:~105: - - 200 nA Output Source Current VCC=15V, VO=2V Differential Input Voltage=1V 20 40 - mA VCC=15V, VO=2V Differential Input Voltage=-1V 10 - - mA Output Sink Current VCC=15V, VO=0.2V Differential Input Voltage=-1V 12 50 - A Output Short Current VCC=15V - 40 60 mA VCC=27V, RL=2k, 25: 23 24 - VCC=27V, RL=10k, 25: 24 - - Output Voltage – High Level V RL=10k, 25: - 5 20 Output Voltage – Low Level RL=10k, -40:~105: - - 20 mV Large Signal Voltage Gain (OP1) Common mode Voltage=0V VCC=15V, RL=2k - 100 - V/mV VCC=15V, RL=2k, VO=1.4V~11.4V, 25: 50 100 - Large Signal Voltage Gain (OP2) VCC=15V, RL=2k, VO=1.4V~11.4V, -40:~105: 25 - - V/mV Slew Rate at Unity Gail VIN=0.5V~2V, VCC=15V RL=2k, CL=100pF, Unity Gain 0.2 0.4 - V/S Supply Voltage Rejection Ratio Common mode Voltage=0V, VCC=5~27V 65 100 - dB Gain Bandwidth Product VCC=27V, RL=2k, CL=100pF, f=100kHz, VIN=10mV 0.5 0.9 - MHz Total Harmonic Distortion VCC=27V, RL=2k, CL=100pF VO=2VPP, f=1kHz, AV=20dB - 0.02 - %

01-Jun-2002 Rev. A Page 3 of 4 ht tp://www.SeCoSGmbH.com/ A ny changing of specification will not be informed individual Elektronische Bauelemente (UVLO) SPW8103S Dual OP-AMP and 2.5V 0.7% Voltage Reference OP-Amp2 25: - 2 75 Input Offset Current -40:~105: - - 150 nA VCC=27V, 25: 0 - VCC-1.5 Input Common Mode Voltage Range VCC=27V, -40:~105: 0 - VCC-2 V 25: 70 85 - Common Mode Rejection Ratio -40:~105: 60 - - dB Equivalent Input Noise Voltage f=1kHz, RS=100,VCC=27V - 50 - nV/ Reference Voltage Cathode Current 1 - 100 mA Reference Input Voltage Deviation Over Temperature Range(IK=10mA) -40:~105: - 7 30 mV Minimum Cathode Current for Regulator - 0.5 1 mA Dynamic Impedance æIK=1~100mA, f<1kHz - 0.2 0.5 Hz

01-Jun-2002 Rev. A Page 4 of 4 http://www.SeCoSGmbH.com/ Any changing of specification will not be informed individual SPW8103S Dual OP-AMP and 2.5V 0.7% Voltage Reference Application Information— CC/CV Control for Switching Adapters