AZ494CM-E1 Package Option Addendum

Overview

The AZ494CM-E1 is a voltage mode pulse width modulation (PWM) switching regulator control circuit designed for a variety of power supply applications. It features a stable reference voltage, adjustable oscillator, and versatile output control options.

Package Information

• Package Type: SOIC-16 (Surface Mount)
• Body Size (Nominal): 7.50 mm × 7.00 mm
• Lead Pitch: 1.27 mm
• Pin Count: 16

Ordering Information

• Part Number: AZ494CM-E1
• Status: Active
• Material Type: Production
• Package Quantity: Tube
• RoHS Compliance: Yes
• Operating Temperature Range: -40°C to 85°C
• Lead Finish/Ball Material: Lead-Free (Pb-Free)
• Moisture Sensitivity Level (MSL): Level-3-260C-168 HR
• Peak Reflow Temperature: 260°C

Pin Configuration

TableCopy

Absolute Maximum Ratings

• Supply Voltage (VCC): 40V
• Amplifier Input Voltage (VI): -0.3V to VCC + 0.3V
• Collector Output Voltage (VO): 40V
• Collector Output Current (IO): 250mA
• Package Thermal Impedance (RθJA): 73°C/W (SOIC-16)
• Lead Temperature (1.6mm from case for 10 seconds): 260°C
• Storage Temperature Range (TSTG): -65°C to 150°C
• ESD Rating (Machine Model): 200V

Recommended Operating Conditions

• Supply Voltage (VCC): 7V to 36V
• Collector Output Voltage (VC1, VC2): 30V to 36V
• Collector Output Current (IC1, IC2): 200mA
• Amplifier Input Voltage (VI): 0.3V to VCC - 2V
• Current Into Feedback Terminal (IFB): 0.3mA
• Reference Output Current (IREF): 10mA
• Timing Capacitor (CT): 0.00047µF to 10µF
• Timing Resistor (RT): 1.8KΩ to 500KΩ
• Oscillator Frequency (fosc): 1.0KHz to 200KHz
• Operating Free-Air Temperature (TA): -40°C to 85°C

Electrical Characteristics

• Reference Voltage (VREF): 4.95V ±1% (AZ494C)
• Line Regulation (RLINE): 2mV to 25mV
• Load Regulation (RLOAD): 1mV to 15mV
• Short-Circuit Output Current (ISC): 10mA to 50mA
• Oscillator Frequency (fOSC): 9.0KHz to 10.8KHz (CT=0.01µF, RT=12KΩ)
• Frequency Change with Temperature (∆f/∆T): ±1%
• Dead-Time Control Input Bias Current (IBIAS): -2µA to -10µA
• Maximum Duty Cycle (D(MAX)): 45%
• Input Threshold Voltage (VITH): 3.0V to 4.5V

Mechanical Dimensions

• SOIC-16 Package:Length: 11.25 mmWidth: 7.50 mmHeight: 1.75 mmLead Length: 0.25 mmLead Width: 0.40 mmLead Pitch: 1.27 mm

Important Notes

1. Lead Finish: The lead finish is Pb-Free, which is suitable for most standard soldering processes.
2. Moisture Sensitivity Level: The device is rated at MSL 3, which means it can be exposed to ambient conditions for up to 168 hours before reflow soldering.
3. Reflow Temperature: The peak reflow temperature is 260°C, which is typical for lead-free soldering processes.
4. RoHS Compliance: The device complies with the Restriction of Hazardous Substances (RoHS) directive, ensuring it is free from harmful substances like lead.