Overview
The TL594CDR2G is a precision switchmode pulse width modulation (PWM) control circuit produced by onsemi. This device is designed primarily for controlling switchmode power supplies and incorporates a comprehensive set of features necessary for such applications. It includes an on-chip oscillator, error amplifiers, a 5.0 V reference, and adjustable deadtime control, making it a versatile component for various power supply configurations.
Key Specifications
| Characteristics | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Power Supply Voltage | VCC | 7.0 | 15 | 40 | V |
| Collector Output Voltage | VC1, VC2 | -30 | - | 40 | V |
| Collector Output Current (Each Transistor) | IC1, IC2 | - | - | 200 mA | mA |
| Reference Voltage | Vref | 4.925 | 4.9 | 5.075 | V |
| Oscillator Frequency | fosc | 1.0 | 40 | 300 | kHz |
| Operating Junction Temperature | TJ | - | - | 125 | °C |
| Operating Ambient Temperature Range | TA | -40 | - | 85 | °C |
Key Features
- Complete Pulse Width Modulation Control Circuitry
- On-Chip Oscillator with Master or Slave Operation
- On-Chip Error Amplifiers
- On-Chip 5.0 V Reference, 1.5% Accuracy
- Adjustable Deadtime Control
- Uncommitted Output Transistors Rated to 500 mA Source or Sink
- Output Control for Push-Pull or Single-Ended Operation
- Undervoltage Lockout
- Pb-Free, Halogen Free/BFR Free and RoHS Compliant
Applications
The TL594CDR2G is primarily used in the control of switchmode power supplies. It can be configured for various power supply applications, including push-pull and single-ended operations. The device is suitable for use in pulse width modulated (PWM) converters, such as step-down converters and other switching power supply configurations where precise control over the output is required.
Q & A
- What is the primary function of the TL594CDR2G?
The TL594CDR2G is a precision switchmode pulse width modulation (PWM) control circuit designed primarily for controlling switchmode power supplies.
- What is the range of the power supply voltage for the TL594CDR2G?
The power supply voltage range is from 7.0 V to 40 V.
- What is the accuracy of the on-chip 5.0 V reference?
The on-chip 5.0 V reference has an accuracy of ±1.5%.
- Can the TL594CDR2G be used in both push-pull and single-ended configurations?
- What is the maximum collector output current for each transistor?
The maximum collector output current for each transistor is 200 mA.
- What is the operating ambient temperature range for the TL594CDR2G?
The operating ambient temperature range is from -40°C to 85°C.
- Is the TL594CDR2G RoHS compliant?
- How is the oscillator frequency programmed in the TL594CDR2G?
The oscillator frequency is programmed using two external components, RT and CT.
- What is the purpose of the undervoltage lockout feature in the TL594CDR2G?
The undervoltage lockout feature prevents the device from operating below a certain voltage threshold, ensuring reliable operation and preventing damage.
- Can the TL594CDR2G be used in high-current output configurations?
