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Part Number: AZ494A
Description: The AZ494A/C is a voltage mode pulse width modulation switching regulator control circuit designed pri...
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AZ494A
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DataSheet
General Description
AZ494A General Description
The AZ494A/C is a voltage mode pulse width modulation switching regulator control circuit designed primarily for power supply control. The AZ494A/C consists of a reference voltage circuit, two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, and an output control circuit. The precision of voltage reference (VREF) is improved up to ± 1% through trimming and this provides a better output voltage regulation. The AZ494A/C provides for push-pull or single-ended output operation, which can be selected through the output control.
AZ494A Features
· Stable 4.95V/5V Reference Voltage Trimmed to ±1.0% Accuracy
· Uncommitted Output TR for 200mA Sink or Source Current
· Single-End or Push-Pull Operation Selected by Output Control
· Internal Circuitry Prohibits Double Pulse at Either Output
· Complete PWM Control Circuit with Variable Duty Cycle
· On-Chip Oscillator With Master or Slave Operation
· Uncommitted Output TR for 200mA Sink or Source Current
· Single-End or Push-Pull Operation Selected by Output Control
· Internal Circuitry Prohibits Double Pulse at Either Output
· Complete PWM Control Circuit with Variable Duty Cycle
· On-Chip Oscillator With Master or Slave Operation
AZ494A Typical Application
· SMPS
· Back Light Inverter
· Charger
· Back Light Inverter
· Charger
AZ494A Connection Diagram
AZ494A
PDF/DataSheet Download
- Datasheet: AZ494A
- File Size: 82782 KB
- Manufacturer: BCD Semiconductor
- Click here to Download
- ·AZ431A-A
- BCDSEMI
- AZ431-A_BCDSEMI.pdf
- 201638 KB
- ·AZ431AK-A
- BCD Semiconductor Manufacturing Limited
- ADJUSTABLE PRECISION SHUNT REGULATORS
- 189883 KB
- ·AZ431AK-ATR
- BCD Semiconductor Manufacturing Limited
- ADJUSTABLE PRECISION SHUNT REGULATORS
- 189883 KB
- ·AZ431AK-ATRE1
- BCD Semiconductor Manufacturing Limited
- ADJUSTABLE PRECISION SHUNT REGULATORS
- 189883 KB
- ·AZ431AK-B
- BCD Semiconductor Manufacturing Limited
- ADJUSTABLE PRECISION SHUNT REGULATORS
- 189883 KB
- ·AZ431AK-BE1
- BCD Semiconductor Manufacturing Limited
- ADJUSTABLE PRECISION SHUNT REGULATORS
- 189883 KB
- ·AZ431AK-BTR
- BCD Semiconductor Manufacturing Limited
- ADJUSTABLE PRECISION SHUNT REGULATORS
- 288038 KB
- ·AZ431AK-BTRE1
- BCD Semiconductor Manufacturing Limited
- ADJUSTABLE PRECISION SHUNT REGULATORS
- 288038 KB
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