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TL1454 Datasheet(PDF) 2 Page - Texas Instruments |
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TL1454 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 24 page TL1454, TL1454Y DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT SLVS086B – APRIL 1995 – REVISED NOVEMBER 1997 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 functional block diagram _ + _ + OSC PWM Comparator 1 Error Amplifier 1 To Internal Circuitry 2.5 V 1.25 V 1 V 1 V SCP VCC GND DTC1 DTC2 14 3 15 7 16 4 5 13 12 6 11 10 21 CT RT OUT1 OUT2 8 VCC UVLO and SCP Latch IN1 + IN1 – IN2 + IN2 – COMP1 COMP2 REF 1.8 V 1.2 V SCP Comparator 1 Voltage REF 9 VCC 0.65 V 0.65 V 1.25 V PWM Comparator 2 Error Amplifier 2 SCP Comparator 2 |
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