TL5001AQDR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Mode PWM Controller
• Characteristics: High-performance, adjustable frequency, and duty cycle control
• Package: SOIC-16
• Essence: Regulates the output voltage of power supplies
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 7V to 40V
• Output Voltage Range: 2.5V to 36V
• Operating Temperature Range: -40°C to +85°C
• Switching Frequency Range: 100Hz to 500kHz
• Maximum Duty Cycle: 100%
• Quiescent Current: 8mA

Detailed Pin Configuration

The TL5001AQDR has a total of 16 pins. The pin configuration is as follows:

1. COMP: Compensation pin for feedback loop
2. CS: Current sense input pin
3. RT/CT: Timing resistor/capacitor connection pin
4. GND: Ground reference pin
5. VREF: Reference voltage output pin
6. VCC: Positive supply voltage input pin
7. OSC: Oscillator timing capacitor connection pin
8. SYNC: Synchronization input pin
9. SS/TR: Soft-start/Shutdown control pin
10. OUT: Output pin
11. FB: Feedback input pin
12. NC: No Connection
13. NC: No Connection
14. NC: No Connection
15. NC: No Connection
16. NC: No Connection

Functional Features

• Adjustable frequency and duty cycle control
• Voltage mode control with pulse-width modulation (PWM)
• Overvoltage protection
• Undervoltage lockout
• Soft-start capability
• Error amplifier with high gain

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile applications
• High-performance regulation of output voltage
• Adjustable frequency and duty cycle provide flexibility in power supply design
• Overvoltage protection ensures the safety of connected devices
• Soft-start capability reduces inrush current during startup

Disadvantages

• Requires external components for proper operation
• Limited maximum duty cycle may restrict certain applications
• Not suitable for high-power applications due to its package size

Working Principles

The TL5001AQDR is a voltage mode PWM controller that regulates the output voltage of power supplies. It operates by comparing the feedback voltage from the output with a reference voltage. The error amplifier amplifies the difference between these voltages, which is then used to control the duty cycle of the PWM signal. By adjusting the duty cycle, the TL5001AQDR maintains a stable output voltage.

Detailed Application Field Plans

The TL5001AQDR is commonly used in various applications, including:

1. Switching Power Supplies: Provides efficient voltage regulation in power supply units for electronic devices.
2. Battery Chargers: Controls the charging process and ensures proper voltage levels for different battery types.
3. LED Lighting: Enables dimming and brightness control in LED lighting systems.
4. Motor Control: Regulates the speed and direction of motors in industrial and automotive applications.
5. Audio Amplifiers: Maintains a stable power supply for audio amplification circuits.

Detailed and Complete Alternative Models

1. TL494: Similar voltage mode PWM controller with adjustable frequency and duty cycle control.
2. UC3843: Integrated circuit for controlling switch-mode power supplies with adjustable frequency and duty cycle.
3. SG3525: PWM controller IC with adjustable frequency and duty cycle for power supply applications.
4. LT1241: High-performance PWM controller with adjustable frequency and duty cycle for power electronics.
5. MC34063A: Step-up, step-down, and inverting switching regulator controller with adjustable frequency and duty cycle.

These alternative models offer similar functionality and can be used as substitutes for the TL5001AQDR in various applications.

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