IX6610 Transformer Coupled Driver Logic Interface Features Description TTL Logic level micro-controller Interface The IX6610 is a primary side logic interface device Pulse transformer bidirectional data interface that implements a dual channel bidirectional Short input pulse suppression transformer interface to drive a secondary side intelligent IGBT driver. The bidirectional transformer Interlock and dead time control interface transmits the primary side input commands, Four 1A pulse transformer drivers secondary side output faults, and power supply faults. Two 1A drivers for push-pull power converter for the Asynchronous data transmission is through high secondary side power supply frequency narrow pulses to avoid duty cycle Non-overlap operation of high side and low side restrictions, to achieve shorter delays, and to prevent drivers any transformer core saturation issues. The IX6610 Internal startup oscillator contains all the necessary blocks to implement a Primary side fault monitoring power converter that supplies isolated power to the Secondary side fault monitoring secondary side IGBT drivers. IX6610 is a primary side Two fault status outputs device with built-in interlock and dead time control that 2mA quiescent current (non- switching) can be interfaced directly to a low voltage microcontroller to provide input signal conditioning as Applications well as fault management. Pulse transformer coupled IGBT/MOSFET gate driver interface The IX6610 operates over a temperature range of -40C to +85C. The IX6610 is available in either IX6610 Block Diagram 28-lead TSSOP with exposed pad or as tested die. 28 Ordering Information Softstart Control PGND1 PGND1 TRDCP 1 27 TRDCN Output Power Select Part Description PGND1 PGND1 GND 2 Watchdog IX6610T 28-Pin TSSOP, in Tubes, Exposed Tab (50/Tube) Timer MODE 3 IX6610TR 28-Pin TSSOP, Exposed Pad, Tape & Reel (1000/Reel) V DD 26 RCVAP IX6610 Tested Die POR FLTRST 4 THSD Reset RST 25 RCVAN Generator Oscillator RESET 5 24 RCVBP Clock Select CLK 6 23 RCVBN EN2 V DD Power Supply FAULT1 7 OVLO Fault Logic 22 V V DD IN UVLO Output Fault 21 V FAULT2 AUX 8 Logic Internal Start-Up V Regulator REF 20 TEST Precision RBIAS 9 + V vbg DD Current 3.3V vbg - Generator 19 V LDO DD Soft-Start INB 10 Control 18 CB Dead Time INA 11 Generator TRAP 12 17 TRBP Channel A Channel B Leading Edge Pulse Leading Edge Pulse PGND2 PGND2 TRAN 13 16 TRBN Channel B Channel A Trailing Edge Pulse Trailing Edge Pulse PGND2 PGND2 CA PGND2 14 15 PGND2 DS-IX6610-R00A PRELIMINARY 1IX6610 1. Specifications 3 1.1 Package Pinout 3 1.2 Pin Description . 3 1.3 Absolute Maximum Ratings 25C 4 1.4 ESD Warning 5 1.5 Electrical Characteristics . 5 1.5.1 Input Power Supply 5 1.5.2 Thermal Characteristics 5 ) . 5 1.5.3 Auxiliary Winding Bootstrap Supply (V AUX 1.5.4 Start Up Regulator (V ) . 6 CC 1.5.5 LDO Regulator (V ) 6 DD 1.5.6 Digital Input Terminals . 6 1.5.7 Internal Voltage Reference . 6 1.5.8 Digital Input Interface and Dead Time Generator . 7 1.5.9 External Clock and Internal Oscillator 7 1.5.10 Thermal Shutdown Circuit 7 1.5.11 UVLO Circuit 7 1.5.12 OVLO Circuit 8 1.5.13 Power Converter Control Circuit . 8 1.5.14 Signal Transformer Primary (Transmit) Switch and Pulse Generator . 9 1.5.15 Signal Transformer Secondary Receive Inputs and Fault Detect 9 1.6 Timing Diagrams 10 2. Theory of Operation 17 2.1 Detailed Circuit Description 17 2.1.1 Digital Input Interface . 17 2.1.2 Short Pulse Filter 18 2.1.3 Dead Time Generator . 18 2.1.4 Oscillator . 18 2.1.5 Under Voltage Lockout 18 2.1.6 Over Voltage Lockout . 18 2.1.7 Signal Transformer Primary Switches and Pulse Generators . 18 2.1.8 Signal Transformer Secondary Receive Inputs and Fault Detect 18 2.1.9 Push-Pull Power Converter Control 19 2.1.10 Watchdog Timer 19 2.1.11 Thermal Shutdown (THSD) 19 2.1.12 5V Startup Regulator (V ) . 19 CC 2.1.13 3.3V LDO Regulator (V ) 20 DD 2.1.14 Dead Time Delay Capacitor Selection . 20 2.1.15 RESET . 20 2.1.16 TEST . 20 3. Manufacturing Information . 21 3.1 Moisture Sensitivity 21 3.2 ESD Sensitivity . 21 3.3 Soldering Profile . 21 3.4 Board Wash 21 3.5 Mechanical Dimensions . 22 3.5.1 IX6610T 28-Pin TSSOP . 22 3.5.2 IX6610T 28-Pin TSSOP Tape & Reel . 22 2 PRELIMINARY R00A