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TEA1552T 데이터시트(PDF) 4 Page - NXP Semiconductors |
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TEA1552T 데이터시트(HTML) 4 Page - NXP Semiconductors |
4 / 24 page 2002 Aug 27 4 Philips Semiconductors Product specification GreenChip ™II SMPS control IC TEA1552 BLOCK DIAGRAM handbook, full pagewidth SUPPLY MANAGEMENT internal supply UVLO start M-level VCC 8 10 13 300 Ω 1 3 GND STDBY S1 CTRL FREQUENCY CONTROL VOLTAGE CONTROLLED OSCILLATOR LOGIC LOGIC OVER- VOLTAGE PROTECTION OVER-POWER PROTECTION short winding soft start S2 OVER- TEMPERATURE PROTECTION SQ R UVLO Q MAXIMUM ON-TIME PROTECTION POWER-ON RESET −1 VALLEY TEA1552 100 mV clamp DRIVER START-UP CURRENT SOURCE 12 LOCK VCOadj 0.88 V 0.5 V 5.6 V 2 11 Isense VCC(5V) 4 DRIVER MBL499 14 DEM 7 DRAIN 5, 6 HVS OCP LEB blank Iss lock detect 2.5 V SQ R VCC < 4.5 V Q 5 V/1 mA (max) Fig.2 Block diagram. |
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