TSM105 ST Microelectronics, TSM105 Datasheet
TSM105
Available stocks
Related parts for TSM105
TSM105 Summary of contents
Page 1
... LOW EXTERNAL COMPONENT COUNT CURRENT SINK OUTPUT STAGE EASY COMPENSATION LOW AC MAINS VOLTAGE REJECTION DESCRIPTION TSM105 is a highly integrated solution for SMPS applications requiring CV (constant voltage) and CC (constant current) mode. TSM105 integrates one voltage reference, two operational amplifiers (with ORed outputs - com- mon collectors), and a current sensing circuit ...
Page 2
... TSM105 PIN DESCRIPTION SOT23-5 Pinout Name Pin # Type Vcc 5 Power Supply Gnd 2 Power Supply Vctrl 1 Analog Input Ictrl 4 Analog Input Out 3 Current Sink Output SO8 Pinout Name Pin # Type Vcc 2 Power Supply Gnd 8 Power Supply Vctrl 1 Analog Input Ictrl 6 Analog Input ...
Page 3
... Tamb < 85°C Tamb 0 < Tamb < 85°C Tamb 0 < Tamb < 85°C 4) Iout = 2.5mA Tamb 0 < Tamb < 85°C Tamb 0 < Tamb < 85°C Tamb Tamb 0 < Tamb < 85°C TSM105 Value Unit 2 Min Typ Max Unit 1. 1 ...
Page 4
... Figure 2 : Typical Adapter or Battery Charger Application Using TSM105 TSM105 1.210V 200mV + In the above application schematic, the TSM105 is used on the secondary side of a flyback adapter (or battery charger) to provide an accurate control of voltage and current. The above feedback loop is made with an optocoupler. 4/9 Vcc 1.210V ...
Page 5
... V/I output-power graph. Figure 3 : Output voltage versus output current Vout amplifier, the eq2 eq2’ TSM105 Vcc : independent power supply Secondary current regulation 0 2. Compensation The voltage-control trans-conductance operation- eq3 al amplifier can be fully compensated. Both its out- put and the negative input are directly accessible for external compensation components ...
Page 6
... If the primary current limitation is considered not to be precise enough for the application, then a suffi- cient supply for the TSM105 has to be ensured un- der any condition. It would then be necessary to add some circuitry to supply the chip with a sepa- rate power line. This can be achieved in numer- ous ways, including an additional winding on the transformer ...
Page 7
... Supply voltage | | | | | .SUBCKT TSM105 N1VCRTL N2GND N3OUT N4ICTRL N5VCC XI60 N2GND N3OUT N5VCC N2GND NET32 TCAFC XI59 N2GND N3OUT N5VCC N1VCRTL NET22 TCA VV48 NET22 N2GND 1.21 RR46 NET32 NET22 48.7K RR47 N4ICTRL NET32 8K II63 N5VCC N2GND 651u .ENDS TSM105 Amplifier for current control ...
Page 8
... TSM105 PACKAGE MECHANICAL DATA 5 PINS - PLASTIC PACKAGE SOT23 Dim. Min 0.90 B 0.35 C 0. 2.60 F 1. Millimeters Typ. Max. 1.20 1.45 0.15 1.05 1.30 0.40 0.50 0.15 0.20 2.90 3.00 1.90 0.95 2.80 3.00 1.60 1.75 0.5 0.60 10d Inches Min. Typ. Max. 0.035 0.047 0.057 0.006 0.035 0.041 0.051 0.014 0.016 0.020 ...
Page 9
... TSM105 PACKAGE MECHANICAL DATA 8 PINS - PLASTIC MICROPACKAGE (SO8) Dim. Min 0 0.65 b 0.35 b1 0. 4 3 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use ...