DESCRIPTION

The TSM101/TSM101A integrated circuit incorporates a high stability series band gap voltage refer

ence, 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. The controlled current generator can be used to modify the level of current limitation by offsetting the information coming from the current sensing resistor.

■1.24V SERIES VOLTAGE REFERENCE WITH 10mA OUTPUT CURRENT AND 1 PRECISION (TSM101A)

■TWO OPERATIONAL AMPLIFIERS WITH ORED OUTPUT AND 1MHZ GAIN BAND WIDTH PRODUCT

■BUILT-IN CURRENT GENERATOR WITH ENABLE/DISABLE FUNCTION

■4.5 TO 32V SUPPLY VOLTAGE RANGE

■SO8 AND DIP8 PACKAGES

TSM101AI属于集成电路（IC） > 电压基准。意法半导体（ST）集团制造生产的TSM101AI电压基准产品属于基准电压源系列，可通过相对较不稳定的电源提供稳定的电势，电压值始终保持恒定，以便在测量、控制和类似应用中用作比较的标准。其功能行为可能与用于大功率调节的线性稳压器相似，但基准电压源器件却不适合用于此类用途。用作比较标准时，若输出电流容量或实际负载电流增大，其性能通常会降低。