TD352 ST Microelectronics, Inc., TD352 Datasheet
TD352
Available stocks
Related parts for TD352
TD352 Summary of contents
Page 1
... Adjustable and accurate turn-on delay ■ UVLO protection ■ 2kV ESD protection Description TD352 is an advanced gate driver for IGBT and power MOSFET. Control and protection functions are included and allow the design of high reliability systems. Innovative active Miller clamp function avoids the ...
Page 2
... Analog input CLAMP 5 Analog output VL 6 Power supply OUT 7 Analog output VH 8 Power supply 2/13 UVLO IN Vref Delay Desat TD352 Type Input +5V reference voltage Turn on delay Desaturation protection Miller clamp Signal ground Gate drive output Positive supply Block Diagram 16V VH OUT VL CLAMP Function ...
Page 3
... Storage temperature Tj Maximum Junction Temperature Rhja Thermal Resistance Junction-Ambient ESD Electrostatic discharge Table 3. Operating Conditions Symbol VH Positive Supply Voltage vs. VL Toper Operating Free Air Temperature Range Parameter Parameter TD352 Value Unit 28 V VL-0.3 to VH+0 500 mW -55 to 150 °C 150 °C 150 ° ...
Page 4
... TD352 3 Electrical Characteristics Table -20 to 125°C, VH=16V (unless otherwise specified) amb Symbol Parameter Input Vton IN turn-on threshold voltage Vtoff IN turn-off threshold voltage Iinp IN Input current Voltage reference - Note 1 Vref Voltage reference Iref Maximum output current Clamp Vtclamp CLAMP pin voltage threshold ...
Page 5
... Functional Description 4 Functional Description 4.1 Input stage TD352 IN input is clamped at about 5V to 7V. The input is triggered by the signal edge. When using an open collector optocoupler, the resistive pull-up resistor can be connected to either VREF or VH. Recommended pull-up resistor value with VH=16V are from 4.7k to 22k. 4.2 Voltage reference A voltage reference is used to create accurate timing for the turn-on delay with external resistor and capacitor ...
Page 6
... TD352 4.7 Undervoltage protection Undervoltage detection protects the application in the event of a low VH supply voltage (during start- fault situation). During undervoltage, the OUT pin is driven low (active pull-down for VH>2V, passive pull-down for VH<2V. Figure 2. Undervoltage protection VH OUT FAULT 6/13 Functional Description UVH UVL ...
Page 7
... Functional Description Figure 3. Detailed internal schematic Comp_Input IN 7V 1V-4V VREF 5V Vref Comp_DelayOff CD 2. 250uA Comp_Desat DESAT VH-2V S1 UVLO Control Block TD352 Comp_Clamp CLAMP 2V VH OUT VL rev. 2 7/13 ...
Page 8
... TD352 5 Timing Diagrams Figure 4. General turn-on and turn-off sequence OUT CLAMP Vge VL level Vce Figure 5. input and output waveform dynamic parameters IN (level mode) IN (edge mode) OUT Figure 6. Desaturation fault IN CD OUT DESAT 8/13 Twin VH level Twout Open VH level Miller plateau Twin ...
Page 9
... Iosink=500mA Iosink=500mA Iosink=20mA Iosink=20mA -50 -50 -25 - Temp (°C) Temp (°C) 0 -50 - Temp (°C) -50 - Temp (°C) TD352 100 100 125 125 100 125 100 125 9/13 ...
Page 10
... Figure 15. Large IGBT drive with negative voltage gate drive and optional current buffers VH 4.7k 16V -10V 10/13 UVLO IN Vref CD Delay Desat TD352 UVLO Vref Delay Desat TD352 UVLO IN VREF Vref CD Delay DESAT Desat TD352 Application Diagrams 16V VH OUT VL CLAMP 16V VH OUT VL CLAMP VH Optional OUT VL CLAMP Optional ...
Page 11
... DIP-8 Package DIM. MIN 0.7 B 1. 0.44 Plastic DIP-8 MECHANICAL DATA mm. TYP MAX. 3.3 1.65 1.04 0.5 0.5 9.8 8.8 2.54 7.62 7.62 7.1 4.8 3.3 1.6 inch MIN. TYP. MAX. 0.130 0.028 0.055 0.065 0.036 0.041 0.020 0.015 0.020 0.386 0.346 0.100 0.300 0.300 0.280 0.189 0.130 0.017 0.063 P001F TD352 11/13 ...
Page 12
... TD352 8.2 SO-8 Package DIM. MIN. A 1.35 A1 0.10 A2 1.10 B 0.33 C 0.19 D 4. 5.80 h 0.25 L 0.40 k ddd 12/13 SO-8 MECHANICAL DATA mm. TYP MAX. MIN. 1.75 0.053 0.25 0.04 1.65 0.043 0.51 0.013 0.25 0.007 5.00 0.189 4.00 0.150 1.27 6.20 0.228 0.50 0.010 1.27 0.016 ˚ (max.) 8 0.1 Package Mechanical Data inch TYP. MAX. 0.069 0.010 0.065 0.020 0.010 0.197 0.157 0.050 ...
Page 13
... Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America First Release The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners © 2004 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com Description of Changes TD352 13/13 ...