Datasheet TSM1012 (STMicroelectronics) - 6

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Internal schematics TSM1012 5 Internal schematics Figure 2. Internal schematic
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Figure 3. Typical adapter or battery charger application using TSM1012
3MJNJU 0QUPDPVQMFS % TFDPOEBSZTJEF 065 54. 7$$ $ 3 3 7SFG O' 7 7 3WD $WD $7 O' $7 0VU $ 3 $$ 18. $ $ $$ $7 DPOUSPMMFS $JD 3 $$ (/% 3 O' 0QUPDPVQMFS QSJNBSZTJEF 3JD 3JD % 3TFOTF 065 ". In the application schematic shown in Figure 3, the TSM1012 device is used on the secondary side of a flyback adapter (or battery charger) to provide accurate control of the voltage and current. The above feedback loop is made with an optocoupler. 6/14 DocID10124 Rev 2 Document Outline Figure 1. Pin connections (top view) Table 1. Order codes 1 Pin descriptions Table 2. SO-8 pinout 2 Absolute maximum ratings Table 3. Absolute maximum ratings 3 Operating conditions Table 4. Operating conditions 4 Electrical characteristics Table 5. Electrical characteristics 5 Internal schematics Figure 2. Internal schematic Figure 3. Typical adapter or battery charger application using TSM1012 6 Principle of operation and application hints 6.1 Voltage and current control 6.1.1 Voltage control 6.1.2 Current control Figure 4. Output voltage versus output current 6.2 Compensation 6.3 Start-up and short-circuit conditions 6.4 Voltage clamp Figure 5. Clamp voltage Figure 6. Typical application schematic 7 Package information 7.1 SO-8 package information Figure 7. SO-8 package outline Table 6. SO-8 package mechanical data 8 Revision history Table 7. Document revision history