IC Phoenix logo

Home ›  T  › T39 > TL2845DRG4

TL2845DRG4 from TI/BB,Texas Instruments

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

TL2845DRG4

Manufacturer: TI/BB

Current-Mode PWM Controller 14-SOIC -40 to 85

Partnumber Manufacturer Quantity Availability
TL2845DRG4 TI/BB 410 In Stock

Description and Introduction

Current-Mode PWM Controller 14-SOIC -40 to 85 The TL2845DRG4 is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI) and Burr-Brown (BB).  

### **Specifications:**  
- **Control Method:** Current-mode PWM  
- **Topology:** Flyback, Forward, Boost, Buck  
- **Frequency Range:** Up to 500 kHz  
- **Output Drive Current:** 1 A (peak)  
- **Supply Voltage (VCC):** 8.5 V to 30 V  
- **UVLO (Undervoltage Lockout):** 8.4 V (on), 7.6 V (off)  
- **Duty Cycle Maximum:** 50%  
- **Error Amp Bandwidth:** 1 MHz  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The TL2845DRG4 is designed for switch-mode power supply applications, offering precise regulation and high efficiency. It features an integrated oscillator, error amplifier, current-sensing comparator, and a high-current totem-pole output for driving power MOSFETs.  

### **Features:**  
- **Current-Mode Control:** Improves loop response and simplifies compensation.  
- **Trimmed Oscillator Discharge Current:** Ensures consistent duty cycle control.  
- **Automatic Feed-Forward Compensation:** Enhances line regulation.  
- **Pulse-by-Pulse Current Limiting:** Provides cycle-by-cycle protection.  
- **Undervoltage Lockout (UVLO):** Ensures proper startup and shutdown.  
- **High-Current Totem-Pole Output:** Directly drives power MOSFETs.  
- **Low Startup Current (0.5 mA typical):** Reduces power loss during startup.  

This device is commonly used in AC/DC converters, DC/DC converters, and offline power supplies.

Application Scenarios & Design Considerations

Current-Mode PWM Controller 14-SOIC -40 to 85

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips