june 2011 doc id 11095 rev 2 1/18 18 td352 advanced igbt/mosfet driver features 1.7 a sink / 1.3 a source (typ) current capability active miller clamp feature desaturation detection adjustable turn-on delay uvlo protection 2k v esd protection applications 1200 v 3-phase inverter motor control systems ups description this device is an advanced gate driver for igbts and power mosfets. control and protection functions are included and allow the design of high reliability systems. the innovative active miller clamp function eliminates the need for negative gate drive in most applications and allows the use of a simple bootstrap supply for the high side driver. the td352 includes an adjustable turn-on delay. this feature can be used to implement reliable deadtime between high and low sides of a half bridge. an external resistor and capacitor are used to provide accurate timing. so-8 table 1. device summary order codes temperature range package packaging td352id -40c, +125c so-8 tube td352idt tape and reel www.st.com
contents td352 2/18 doc id 11095 rev 2 contents 1 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5.1 input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5.2 voltage reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5.3 active miller clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5.4 turn-on delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5.5 desaturation protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.6 output stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.7 undervoltage protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 7 typical performance curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 8 application diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 9 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 10 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
td352 block diagram doc id 11095 rev 2 3/18 1 block diagram figure 1. td352 block diagram ! - v 4 $ / 5 4 ( 6 . ) 6 2 % & 6 , $ % 3 ! 4 # $ # , ! - 0 # o n t r o l " l o c k 6 r e f 5 6 , / $ e s a t $ e l a y 6 k 8 *
pin connections td352 4/18 doc id 11095 rev 2 2 pin connections figure 2. pin connections (top view) table 2. pin description pin n name type function in 1 analog input input vref 2 analog output +5 v reference voltage cd 3 timing capacitor turn on delay desat 4 analog input desaturation protection clamp 5 analog output miller clamp vl 6 power supply signal ground out 7 analog output gate drive output vh 8 power supply positive supply , 1 9 5 ( ) & |