STMicroelectronics TSM101
The TSM101/TSM101Aintegrated circuit incorporates a high stability series band gap voltage reference, two ORed operational amplifiers and a current source. This IC compares the DC voltage and the current level at the output of a switching power supply to an internal reference. It provides a feedback through an optocoupler to the PWM controller IC in the primary side.DESCRIPTION
The controlled current generator can be used to modify the level of current limitation by offsetting the information coming from the current sensing resistor.APPLICATIONS
This circuit is designed to be used in battery chargers with a constant voltage and a limited output current. It can be used in every types of applicationrequiring a precision voltage regulation and current limitation. Other applications include voltage supervisors, over voltage protection... June 1999 Part Number TSM101C/AC TSM101I/AI Temperature Range -20, +80oC -40, +105 C o Package N●
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● PIN CONNECTIONS 1 2 3 4 Vref 8 7 6 5 1/15 TSM101/A
ABSOLUTE MAXIMUM RATINGS
Symbol VCC Iout Pd Vin Iin Tstg Tj Tthja Output Current - (note 2) Power Dissipation Input Voltage - (note 3) Input Current Storage Temperature Maximum Junction Temperature Thermal Resistante Junction to Ambiant Parameter DC Supply Voltage - (note 1) Value 36 20 200 -0.3, VCC -1.5 ±1 -40 to +125 150 130 to 200 o Unit V mA mW V mA o o C C C/W Notes : 1.