TD351 STMicroelectronics, TD351 Datasheet

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... Input compatible with pulse transformer or optocoupler UVLO protection 2kV ESD protection Description TD351 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 ...

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... Analog output VL 6 Power supply OUT 7 Analog output VH 8 Power supply 2/12 UVLO VH OUT Vref VL Delay CLAMP Off Level TD351 Type Input +5V reference voltage Turn on/off delay Turn off level Miller clamp Signal ground Gate drive output Positive supply Block Diagram 16V Function ...

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... 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 TD351 Value Unit 28 V VL-0.3 to VH+0 500 mW -55 to 150 °C 150 °C 150 ° ...

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... TD351 3 Electrical Characteristics Table 4: Electrical characteristics for T Symbol Parameter Input Vton IN turn-on threshold voltage Vtoff IN turn-off threshold voltage tonmin Minimum pulse width Iinp IN Input current Voltage reference - Note 1 Vref Voltage reference Iref Maximum output current Clamp Vtclamp CLAMP pin voltage threshold ...

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... Miller current in IGBT switching applications. Instead of driving the IGBT gate to a negative voltage to increase the safety margin, the TD351 uses a dedicated CLAMP pin to control the Miller current. When the IGBT is off, a low impedance path is established between IGBT gate and emitter to carry the Miller current, and the voltage spike on the IGBT gate is greatly reduced ...

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... TD351 Figure 2: Detailed internal schematic Comp_Input IN 7V 1V-4V VREF 5V Vref Comp_DelayOff CD 2.5V S2 LVOFF 6/12 UVLO Filter Control Block 90uA Functional Description Comp_Clamp 2V 2-level OFF driver CLAMP VH OUT VL rev. 2 ...

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... OUT Figure 5: Minimum ON-time Tin< OUT Twin VH level Twout Open VH level Miller plateau Twin Vton Vton VH level Twout tdon Ta<Tin<(Ta+2.Rdel.Cd) 2.5V Ta <Ta VL level Ta LVOFF VL level Clamp threshold Vtoff tonmin Vtoff LVOFF tdoff VL level Tin>(Ta+2.Rdel.Cd level LVOFF TD351 7/12 ...

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... TD351 6 Typical Performance Curves Figure 6: Quiescent current vs temperature 2.5 2.0 1.5 1.0 0.5 0.0 -50 - Temp (°C) Figure 7: Low level output voltage vs temp. 3.0 3.0 2.0 2.0 1.0 1.0 0.0 0.0 -50 -50 -25 - Temp (°C) Temp (°C) Figure 8: Sink current vs temperature 2000 1800 1600 1400 1200 1000 -50 - Temp (°C) ...

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... Figure 14: Large IGBT drive with negative voltage gate drive and optional current buffers VH 4.7k 16V -10V LVOFF VH UVLO Vref Delay Off Level TD351 UVLO IN Vref Delay Off Level TD351 UVLO IN VREF Vref CD Delay Off level TD351 16V VH OUT VL CLAMP 16V VH OUT VL CLAMP VH Optional OUT VL CLAMP Optional TD351 9/12 ...

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... TD351 8 Package Mechanical Data 8.1 DIP-8 Package DIM. MIN 0.7 B 1. 0.44 10/12 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 Package Mechanical Data 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 ...

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... 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 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 TD351 inch TYP. MAX. 0.069 0.010 0.065 0.020 0.010 0.197 0.157 0.050 0.244 0.020 0.050 0.04 0016023/C 11/12 ...

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... TD351 9 Revision History Date Revision 01 Nov 2004 1 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics ...