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TL2845BD-8 from TI,Texas Instruments

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TL2845BD-8

Manufacturer: TI

High-Performance Current-Mode PWM Controller 8-SOIC -40 to 85

Partnumber Manufacturer Quantity Availability
TL2845BD-8,TL2845BD8 TI 138 In Stock

Description and Introduction

High-Performance Current-Mode PWM Controller 8-SOIC -40 to 85 The TL2845BD-8 is a PWM controller manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)
- **Type:** Current-Mode PWM Controller
- **Package:** SOIC-8
- **Topology:** Flyback, Forward, Boost, Buck
- **Operating Frequency:** Up to 500 kHz
- **Input Voltage Range:** 8.4V to 30V
- **Output Voltage:** Adjustable via external components
- **Duty Cycle Max:** 50%
- **Current Limit:** Adjustable
- **Operating Temperature Range:** -40°C to +85°C
- **Start-Up Current:** 0.5 mA (typical)
- **Switching Frequency:** Fixed or adjustable via external resistor/capacitor

### **Descriptions:**
The TL2845BD-8 is a high-performance current-mode PWM controller designed for DC-DC converter applications. It provides precise regulation and high efficiency in power supply designs. The device features a fixed-frequency oscillator, error amplifier, and current-sensing comparator for accurate control.

### **Features:**
- **Current-Mode Control:** Improves loop response and simplifies compensation.
- **Under-Voltage Lockout (UVLO):** Ensures proper start-up and shutdown.
- **Trimmed Oscillator Discharge Current:** Allows precise frequency control.
- **High-Current Totem Pole Output:** Suitable for driving power MOSFETs directly.
- **Low Start-Up and Operating Current:** Enhances efficiency.
- **Programmable Soft-Start:** Reduces inrush current during start-up.
- **Error Amplifier with Wide Bandwidth:** Ensures stable feedback loop.
- **Pulse-by-Pulse Current Limiting:** Protects against overloads.

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

High-Performance Current-Mode PWM Controller 8-SOIC -40 to 85

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