TEA3718DP

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High efficiency, low power consumption
• Package: Dual in-line package (DIP)
• Essence: Voltage regulator and control IC
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: 1.2V to 37V
• Maximum Output Current: 1.5A
• Switching Frequency: 100kHz to 500kHz
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The TEA3718DP has a total of 16 pins. Here is the detailed pin configuration:

1. VCC: Power supply input
2. GND: Ground reference
3. FB: Feedback pin for voltage regulation
4. COMP: Compensation pin for stability control
5. CS: Current sense pin for current limit protection
6. SS: Soft-start pin for gradual startup
7. EN: Enable pin for on/off control
8. RT: External resistor for setting switching frequency
9. CT: External capacitor for setting soft-start time
10. VIN: Input voltage pin
11. SW: Switching node for power transfer
12. PGND: Power ground reference
13. VREF: Reference voltage output
14. VSENSE: Voltage sense pin for feedback loop
15. VOUT: Output voltage pin
16. BOOT: Bootstrap capacitor connection for high-side switch

Functional Features

• Wide input voltage range allows for versatile applications
• High efficiency design minimizes power loss
• Adjustable output voltage provides flexibility
• Overcurrent protection ensures safe operation
• Soft-start feature prevents excessive inrush current
• Enable pin allows for easy on/off control

Advantages and Disadvantages

Advantages

• High efficiency leads to energy savings
• Wide input voltage range accommodates various power sources
• Adjustable output voltage suits different requirements
• Overcurrent protection enhances system reliability
• Soft-start feature prevents voltage spikes during startup
• Enable pin simplifies power management control

Disadvantages

• Limited maximum output current may not be suitable for high-power applications
• Requires external components for proper operation
• Higher cost compared to non-integrated solutions

Working Principles

The TEA3718DP is a voltage regulator and control IC that utilizes a switching mode power supply (SMPS) topology. It operates by converting the input voltage to a higher frequency AC signal, which is then rectified and filtered to provide a stable DC output voltage. The IC incorporates various control mechanisms to regulate the output voltage, limit the output current, and protect against overvoltage or overtemperature conditions.

Detailed Application Field Plans

The TEA3718DP is commonly used in a wide range of applications, including:

1. Power supplies for consumer electronics
2. Industrial automation systems
3. Automotive electronics
4. LED lighting systems
5. Battery charging circuits
6. Telecom infrastructure equipment

Detailed and Complete Alternative Models

Here are some alternative models that offer similar functionality:

1. LM2576-ADJ: Adjustable voltage regulator IC with 3A maximum output current.
2. LT1170: High efficiency step-down switching regulator IC with adjustable output voltage.
3. TPS5430: Synchronous buck converter IC with integrated MOSFETs and adjustable output voltage.
4. MC34063A: Step-up, step-down, and inverting switching regulator IC with adjustable output voltage.
5. MAX5033: High-efficiency, synchronous step-down switching regulator IC with adjustable output voltage.

These alternative models provide options for different power requirements and design considerations.

In conclusion, the TEA3718DP is a versatile voltage regulator and control IC that offers high efficiency and flexibility in various applications. Its wide input voltage range, adjustable output voltage, and built-in protection features make it suitable for a wide range of power management needs.