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TL494IN 데이터시트(PDF) 1 Page - Motorola, Inc |
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TL494IN 데이터시트(HTML) 1 Page - Motorola, Inc |
1 / 12 page Device Operating Temperature Range Package TL494 SEMICONDUCTOR TECHNICAL DATA SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT ORDERING INFORMATION TL494CN TL494IN TA = 0° to +70°C TA = – 25° to +85°C Plastic Plastic PIN CONNECTIONS Order this document by TL494/D N SUFFIX PLASTIC PACKAGE CASE 648 CT RT Ground C1 1 Inv Input C2 Q2 E2 E1 1 ≈ 0.1 V Oscillator VCC 5.0 V REF (Top View) Noninv Input Inv Input Vref Output Control VCC Noninv Input Compen/PWN Comp Input Deadtime Control Error Amp + – 2 3 4 5 6 7 89 10 11 12 13 14 15 16 2 Error Amp + – Q1 D SUFFIX PLASTIC PACKAGE CASE 751B (SO–16) TL494CD SO–16 1 MOTOROLA ANALOG IC DEVICE DATA SWITCHMODE™ Pulse Width Modulation Control Circuit The TL494 is a fixed frequency, pulse width modulation control circuit designed primarily for SWITCHMODE power supply control. • Complete Pulse Width Modulation Control Circuitry • On–Chip Oscillator with Master or Slave Operation • On–Chip Error Amplifiers • On–Chip 5.0 V Reference • Adjustable Deadtime Control • Uncommitted Output Transistors Rated to 500 mA Source or Sink • Output Control for Push–Pull or Single–Ended Operation • Undervoltage Lockout MAXIMUM RATINGS (Full operating ambient temperature range applies, unless otherwise noted.) Rating Symbol TL494C TL494I Unit Power Supply Voltage VCC 42 V Collector Output Voltage VC1, VC2 42 V Collector Output Current (Each transistor) (Note 1) IC1, IC2 500 mA Amplifier Input Voltage Range VIR –0.3 to +42 V Power Dissipation @ TA ≤ 45°C PD 1000 mW Thermal Resistance, Junction–to–Ambient R θJA 80 °C/W Operating Junction Temperature TJ 125 °C Storage Temperature Range Tstg –55 to +125 °C Operating Ambient Temperature Range TL494C TL494I TA 0 to +70 – 25 to +85 °C Derating Ambient Temperature TA 45 °C NOTE: 1. Maximum thermal limits must be observed. © Motorola, Inc. 1996 Rev 1 |
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