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TD1489

CategoryPower/power management    DC - DC chip   
File Size537KB,10 Pages
ManufacturerTechcode Semiconductor, Inc.
Websitehttp://www.techcodesemi.com/cn/index.asp
In the field of high-end analog circuit design and production, American Ted Semiconductor Co., Ltd. has 12 years of comprehensive design experience. We not only have the world's leading analog circuit design technology, but also have a more complete and advanced product quality management method. Due to the production method of "no production line design company", we use a more efficient wafer foundry cooperation model in business operations, so that we can quickly use advanced and more time-effective technology to design high-end analog circuit products with higher cost performance, and then quickly meet customers' needs for high-end products in the growing market demand.
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T
echcode
®
40Vin 6A 2-Outputs Buck Converter
Features 
 
DATASHEET
TD1489
General Description 
TD1489 is a Synchronous Buck Circuit with two current sense 
pins  suitable  for  many  multi‐output  applications.  It  is 
designed to allow for operating a wide supply voltage range 
from  4.7V  to  40V.This  IC  can  operate  in  both  Constant 
Current (CC) and Constant Voltage (CV) modes. 
TD1489 operates as a Buck Circuit providing a wide range of 
outputs  at  Constant  Voltage  (CV)  from  4.7V  to  40V  and  the 
output  current  as  high  as  6A  or  above.  It  has  a  Constant 
Current  (CC)  mode  so  that  output  current  can  be  set 
externally and at an accuracy of ±4%. 
 
The current mode control and external compensation makes 
feedback  control  have  good  line  and  load  regulation  with 
flexible external design. 
 
 
Pin Configurations 
 
Vin: 4.7V to 40V 
 
Vout: 3V to 28V; typical at 5V 
 
Precision CC/CV Mode Control 
 
Burst/PFM Mode for Increased Light Load 
Efficiency 
2 outputs independent Constant Current setting 
 
Hiccup mode when output voltage below 50% 
normal output voltage 
Protection: 
NMOS peak current limit: 
 
accuracy:~20% 
Output short protection: reduce input current to 
less than 20mA (RMS) 
 
Output FB OVP (125% VFB), only turn off High side 
MOS. 
Temperature shutdown (OTP) 
Adjustable Output Cable Resistance Compensation
Switching Frequency: 125k+25k 
Integrated Power MOSFET 
 
QFN32L Package 
Applications 
Car Charger
High‐Brightness Lighting 
General‐Purpose DC/DC Application
 
Figure1 Pin Configuration of TD1489(Top View) 
July  7,  2019. 
                                                             
Techcode  Semiconductor  Limited 
                                             
www.techcodesemi.com 
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