TL2845DR-8

$0.41

Description：IC REG CTRLR MULT TOPOLOGY 8SOIC
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT),Bulk

SKU:02bb2dec8567 Category: DC DC Switching Controllers Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC REG CTRLR MULT TOPOLOGY 8SOIC
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT),Bulk
Output Type：Transistor Driver
Function：Step-Up, Step-Up/Step-Down
Output Configuration：Positive
Topology：Boost, Flyback, Forward
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：7.6V ~ 30V
Frequency - Switching：Up to 500kHz
Duty Cycle (Max)：48%
Synchronous Rectifier：No
Clock Sync：No
Serial Interfaces：-
Control Features：Frequency Control
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SOIC
Grade：-
Qualification：-

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TL2845DR-8

Overview

The TL2845DR-8 is a current-mode PWM controller manufactured by Texas Instruments, designed for DC-DC switching applications. It supports boost, flyback, and forward topologies with a single positive output configuration. The device operates within a supply voltage range of 7.6V to 30V and features a maximum switching frequency of 500kHz. It offers a maximum duty cycle of 50% and includes frequency control capabilities. The component is housed in an 8-SOIC package (0.154 inch width) and functions reliably across an ambient temperature range of -40°C to 85°C.

Feature Summary

Implements current-mode pulse width modulation control for efficient power regulation
Supports versatile converter topologies including boost, flyback, and forward configurations
Provides integrated transistor driver output stage for external switch control

Applications

Boost converter designs
Flyback power supply implementations
Forward converter circuits

Procurement Notes

Verify the specific suffix 'DR-8' against official Texas Instruments documentation to confirm pinout compatibility and electrical specifications. Ensure the ordering part number matches the required tape-and-reel packaging format. Cross-reference the manufacturer product ID with authorized distributors to validate authenticity and traceability before finalizing procurement orders.

Selection Notes

Select this component when designing isolated or non-isolated converters requiring current-mode control. Verify that the required maximum duty cycle does not exceed 50%. Confirm that the input supply voltage remains within the 7.6V to 30V operational window. Ensure the application environment stays within the specified -40°C to 85°C temperature range for reliable performance.

Part Context

This device belongs to the TL284x series of switching controllers from Texas Instruments. It shares functional similarities with other members like the TL2844 and TL2845 variants but is distinguished by its specific package type and suffix designation. The series is widely used in general-purpose power management solutions requiring robust PWM control.