LT8698S/LT8698S-1 5V 3A Output, 42V Input USB Charger with Cable Drop Compensation and Dataline Protection FEATURES DESCRIPTION n Wide V Range Up to 42V The LT 8698S is a compact, high efficiency, synchronous IN n Programmable Cable Drop Compensation Provides monolithic step-down switching regulator designed to Accurate 5V Regulation to Remote USB Sockets power the 5V USB V rail with up to 3A from an input BUS n High Speed USB 2.0 Compliant Dataline Switches voltage as high as 42V. Programmable cable drop com- n Selectable Charger Profiles Including Major pensation maintains accurate 5V V regulation even for BUS Vendors and USB BC 1.2 Profiles USB sockets separated from the LT8698S by a long cable n Silent Switcher 2 Technology and Selectable Spread- such as an automobile wiring harness. Silent Switcher Spectrum Modulation Provide Ultralow EMI Technology and selectable spread-spectrum modulation n Robust Dataline Protection provide ultralow EMI/EMC. n Tolerant of Short Condition Up to 20V The LT8698S supports a wide variety of portable device n ESD Protected Up to IEC61000-4-2 8kV charger profiles including USB BC 1.2 CDP, DCP, and SDP Contact Discharge and 15kV Air Discharge as well as common proprietary profiles. Integrated V BUS n Available Status and Fault Output Pins reset and V regulator disable functions support USB BUS n Programmable and Synchronizable Switching OTG functionality. Frequency 300kHz to 3MHz n The LT8698Ss robust high speed USB 2.0 data line Selectable Forced Continuous or Pulse-Skipping Modes n switches protect the upstream USB host Controller Small 4mm 6mm 0.94mm LQFN Package with from short-circuit conditions up to 20V and ESD events 0.75mm Spacing from V to GND Pins IN n up to IEC61000-4-2 8kV contact discharge and 15kV air AEC-Q100 Qualified for Automotive Applications discharge levels. Further V monitor and fault protec- BUS tion features eliminate the need for a USB power switch. APPLICATIONS The LT8698S includes two parallel 10nF capacitors from n Automotive USB V to PGND for improved EMI/EMC performance. The IN n Industrial USB LT8698S-1 does not include these capacitors. All registered trademarks and trademarks are the property of their respective owners. TYPICAL APPLICATION Automotive Charger with High Speed Dataline Protection and Cable Drop Compensation USB BC1.2 CDP Session V IN 6V TO 42V V IN EN/UV SW INTV CC V BUS LT8698S 2.5V/DIV FLT OUT/ISP IMON BUS/ISN STATUS 1A/DIV HIGH SPEED 3 METER USB5V USB 2.0 HOST USB USB CABLE CONTROLLER SOCKET + SEL1-3 D D 0.1 V BUS 2V/DIV + + LD + D + D HD STATUS LD HD D D 0.1 5V/DIV RCBL CLAMP 8698S TA01b GND 100ms/DIV RT GND PGND IMON 8698S TA01 Rev. B 1 Document Feedback For more information www.analog.comLT8698S/LT8698S-1 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) TOP VIEW V , EN/UV, OUT/ISP, BUS/ISN, USB5V ....................42V IN + HD , HD , CLAMP.....................................................20V SYNC/MODE, FLT, STATUS, GND 39 32 30 29 27 42 GND + SEL1, SEL2, SEL3, LD , LD .......................................6V GND 1 26 BST RCBL, RT ....................................................................2V INTV 2 25 SW CC Operating Junction Temperature Range (Note 2) 33 34 EN/UV 24 SW LT8698SE .......................................... 40C to 125C 3 GND GND LT8698SJ .......................................... 40C to 150C FLT 23 GND 4 Storage Temperature Range .................. 65C to 150C 22 OUT/ISP STATUS 5 Peak Package Body Reflow Temperature ..............260C 35 36 21 BUS/ISN SEL1 6 GND GND SEL2 USB5V SEL3 8 19 RCBL 37 38 GND GND RT 9 18 CLAMP SYNC/MODE 10 17 GND GND GND 40 11 12 13 14 15 16 41 LQFN PACKAGE 32-LEAD (6mm 4mm 0.94mm) = 22C/W, (BASED ON DEMOBOARD) JA GND AND PGND PINS 1, 11, 14, 17, 23, 27, 32 AND 33-42 ARE SHORTED INTERNALLY AND MUST BE SOLDERED TO PCB GND ORDER INFORMATION PART MARKING PAD OR BALL PACKAGE MSL TEMPERATURE RANGE LEAD FREE FINISH TAPE AND REEL FINISH DEVICE FINISH CODE TYPE RATING (SEE NOTE 2) LT8698SEV PBF LT8698SEV TRPBF 40C to 125C 8698V LT8698SJV PBF LT8698SJV TRPBF 40C to 150C LQFN (Laminate Package Au (RoHS) e4 3 with QFN Footprint) LT8698SEV-1 PBF LT8698SEV-1 TRPBF 40C to 125C 8698S1 LT8698SJV-1 PBF LT8698SJV-1 TRPBF 40C to 150C AUTOMOTIVE PRODUCTS** LT8698SEV WPBF LT8698SEV WTRPBF 40C to 125C 8698V LT8698SJV WPBF LT8698SJV WTRPBF 40C to 150C LQFN (Laminate Package Au (RoHS) e4 3 with QFN Footprint) LT8698SEV-1 WPBF LT8698SEV-1 WTRPBF 40C to 125C 8698S1 LT8698SJV-1 WPBF LT8698SJV-1 WTRPBF 40C to 150C Device temperature grade is indicated by a label on the shipping container. Recommended PCB Assembly and Manufacturing Procedures. Pad or ball finish code is per IPC/JEDEC J-STD-609. Package and Tray Drawings **Versions of this part are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. These models are designated with a W suffix. Only the automotive grade products shown are available for use in automotive applications. Contact your local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for thesemodels. Rev. B 2 For more information www.analog.com 7 20 GND PGND + LD LD V IN GND V IN HD + HD PGND