The AZ494CMTR-G1 is a voltage mode pulse width modulation switching regulator control circuit designed primarily for power supply control.
The AZ494CMTR-G1 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 AZ494CMTR-G1 provides for push-pull or single-ended output operation, which can be selected through the output control.
The difference between AZ494A and AZ494C is that they have 4.95V and 5V reference voltage respectively.
The AZ494CMTR-G1 is available in standard packages of PDIP-16 and SO-16.
Feature
- 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
- Totally Lead-Free & Fully RoHS Compliant
- Halogen and Antimony Free. “Green” Device
Applications
- SMPS
- Backlight Inverter
- Charger
