FT830A规格书.pdf

Fremont Micro Devices FT83xx Preliminary Page 1 of 16 DS83xx-A0 Primary-Side-Control CC/CV Controller FEATURES DESCRIPTION?Constant-Current(CC)and Constant-Voltage(CV)Control with Primary Side Control?Eliminates Opto-Coupler and TL431?External Power NPN Transistor for Low Cost?Adjustable Base Driver Improve System EMI(FT831B/2B/2C)?Adjustable Cable compensation for all Loading(FT831A/2A/2C)?Built-in Line Compensation?Charger Status Indicator in Primary Side(FT832A/2B)?Cycle-by-Cycle Current Limiting?Over Voltage Protection(OVP)?Over Temperature Protection(OTP)?Open Circuit Protection?Short Circuit Protection?Pb-Free Device TYPICAL APPLICATION?Adapter/Charger for Cell/Cordless Phones,PDAs,MP3 and Other Portable Apparatus?Standby and Auxiliary Power Supplies Set Top Boxes(STB)The FT83xx controller device is optimized for high-performance,low power switching mode power supply applications.The FT83xx facilitates CC/CV charger design by eliminating an opto-coupler and TL431.Its highly integrated functions such as Under Voltage Lockout(UVLO),Leading Edge Blanking(LEB),external adjustable base driver and cable compensation offer the users a high efficiency and low cost solution for AC/DC power applications.Furthermore,FT83xx features fruitful protections like OTP(Over Temperature Protection),OVP(Over Voltage Protection),and Open Circuit Protection,Short Circuit Protection to eliminate the external protection circuits and provide reliable operation.FT83xx is available in SOT23-5,SOT23-6 and SOP8 packages.Part#Cable CompensationDriving Capability Charging Status LED driverFT830ADefault Default X FT831AProgrammable Default X FT831BDefault Programmable X FT832AProgrammable Default FT832BDefault Programmable FT832CProgrammable Programmable X Table1:FT83xx Series Fremont Micro Devices FT83xx Preliminary Page 2 of 16 DS83xx-A0 TYPICAL APPLICATION CIRCUIT Figure 1:Typical Application Circuit Fremont Micro Devices FT83xx Preliminary Page 3 of 16 DS83xx-A0 ABSOLUTE MAXIMUM RATINGS FB to GND.-0.3V to+9V CS to GND.-0.3V to+9V VCC to GND.-0.3V to+18V OUT to GND.-0.3V to+9V LED_R to GND.-0.3V to+18V LED_G to GND.-0.3V to+18V CABLE to GND.-0.3V to+9V ADJ to GND.-0.3V to+9V Operating Temperature Range.-40 to+125 Junction Temperature.-40 to+150 Storage Temperature Range.-60 to+150 ESD Protection HBM.2000V MM.500V Stresses exceeding Maximum Ratings may damage the device.Maximum Ratings are stress ratings only.Functional operation above the Recommended Operating Conditions is not implied.Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.Fremont Micro Devices FT83xx Preliminary Page 4 of 16 DS83xx-A0 PIN CONFIGURATION Figure 2:Pin Assignments Pin Definition Pat NO.Package 1 2 3 4 5 6 7 8 FT830A SOT23-5 CS FB GND OUT VCC FT831A SOT23-6 CS FB GND OUT VCC CABLE FT831B SOT23-6 CS FB GND OUT VCC ADJ FT832A SOP8 LED_G LED_RVCC OUT GND FB CS CABLEFT832B SOP8 LED_G LED_RVCC OUT GND FB CS ADJ FT832C SOP8 ADJ NC VCC OUT GND FB CS CABLETable 2:Pin Definition TERMINAL DEFINITION Pin Description GND Ground.FB Output voltage feedback pin CS Primary current sense VCC Supply voltage OUT NPN switch base driver LED_R Connect to red LED for indicating charging state LED_G Connect to green LED for indicating charge completed state CABLE Adjust cable compensation by an external resistor and capacitor to GND ADJ Adjust base driver current by an external resistor to GND Table 3 Fremont Micro Devices FT83xx Preliminary Page 5 of 16 DS83xx-A0 ORDERING INFORMATION Table 4 MARKING RULE Figure 3:Marking Rule SOT23-5/6:Represents Version(A or B):Represents package(a:SOT23-5;b:SOT23-6):for internal reference SOP8:Represents Version(A,B or C):for internal reference Product Ordering Information FT830A FT830A FT831A FT831A FT831B FT831B FT832A FT832A FT832B FT832B FT832C FT832C Fremont Micro Devices FT83xx Preliminary Page 13 of 16 DS83xx-A0 PACKAGE INFORMATION SOT23-5 Package Dimensions In Millimeters Dimensions In Inches Symbol Min Max Min Max A 1.050 1.250 0.041 0.049 A1 0.000 0.100 0.000 0.004 A2 1.050 1.150 0.041 0.045 b 0.300 0.500 0.012 0.020 c 0.100 0.200 0.004 0.008 D 2.820 3.020 0.111 0.119 E 1.500 1.700 0.059 0.067 E1 2.650 2.950 0.104 0.116 e 0.95(BSC)0.037(BSC)e1 1.800 2.000 0.071 0.079 L 0.300 0.600 0.012 0.024 0 8 0 6 Fremont Micro Devices FT83xx Preliminary Page 14 of 16 DS83xx-A0 SOT23-6 Package Dimensions In Millimeters Dimensions In Inches Symbol Min Max Min Max A 1.050 1.250 0.041 0.049 A1 0.000 0.100 0.000 0.004 A2 1.050 1.150 0.041 0.045 b 0.300 0.500 0.012 0.020 c 0.100 0.200 0.004 0.008 D 2.820 3.020 0.111 0.119 E 1.500 1.700 0.059 0.067 E1 2.650 2.950 0.104 0.116 e 0.950(BSC)0.037（BSC）e1 1.800 2.000 0.079 L 0.300 0.600 0.024 0 8 0 8 Fremont Micro Devices FT83xx Preliminary Page 15 of 16 DS83xx-A0 SOP8 Package Dimensions In Millimeters Dimensions In Inches Symbol Min Max Min Max A 1.350 1.750 0.053 0.069 A1 0.100 0.250 0.004 0.010 A2 1.350 1.550 0.053 0.061 b 0.330 0.510 0.013 0.020 c 0.170 0.250 0.006 0.010 D 4.700 5.100 0.185 0.200 E 3.800 4.000 0.150 0.157 E1 5.800 6.200 0.228 0.244 e 1.270(BSC)0.050（BSC）L 0.400 1.270 0.016 0.050 0 8 0 8 Fremont Micro Devices FT83xx Preliminary Page 16 of 16 DS83xx-A0 APPENDIX A：REVISION HISTORY Version A0:Original data sheet for the FT83xx Series.*Information furnished is believed to be accurate and reliable.However,Fremont Micro Devices,Incorporated(BVI)assumes no responsibility for the consequences of use of such information or for any infringement of patents of other rights of third parties which may result from its use.No license is granted by implication or otherwise under any patent rights of Fremont Micro Devices,Incorporated(BVI).Specifications mentioned in this publication are subject to change without notice.This publication supersedes and replaces all information previously supplied.Fremont Micro Devices,Incorporated(BVI)products are not authorized for use as critical components in life support devices or systems without express written approval of Fremont Micro Devices,Incorporated(BVI).The FMD logo is a registered trademark of Fremont Micro Devices,Incorporated(BVI).All other names are the property of their respective owners.