TD310 TRIPLE IGBT/MOS DRIVER . . .. . . .. .. .. .. THREE POWER IGBT/MOS AND PULSE TRANSFORMER DRIVERS CURRENT SENSE COMPARATOR WITH 1ms INHIBITION TIME FUNCTION INSTANTANEOUS SIGNAL TRANSMISSION 0.6 Amp PER CHANNEL PEAK OUTPUT CURRENT CAPABILITY LOW OUTPUT IMPEDANCE TYP : 7Ω at 200mA CMOS/LSTTL COMPATIBLE INVERTING INPUT WITH HYSTERESIS 4V TO 16V SINGLE SUPPLY OPERATION CURRENT AMPLIFIER LOW BIAS CURRENT TYP : 1.5mA ADJUSTABLE UNDERVOLTAGE LOCKOUT LEVEL STAND-BY MODE DURING POWER UP NO RANDOM OUTPUT STATE ENHANCED LATCH-UP IMMUNITY CHANNEL PARALLELING CAPABILITY N DIP16 (Plastic Package) ORDER CODES Part Number The TD310 is designed to drive one, two or three Power IGBT/MOS and has driving capability for pulse transformer. So it is perfectly suited to interface control IC with Power Switches in low side or half-bridge configuration. The typical application shown figure 1 implements the TD310 in a pulse controlled half-bridge drive. Positive and negative pulses are applied to the pulse transformer to charge and discharge the IGBT/MOS gate capacitance. More sophisticated secondary circuits provide low impedance gate drive and short-circuit protection as shown in application note n° AN461. On Figure 2, TD310 is implemented as a low side driver in a typical 3 phase motor drive. Figure 3 presents a general purpose low side gate drive. In both case, the current amplifier provides interfacing between a sense resistor and an A/D converter. October 1997 Package Temperature Range o o -40 C, +125 C TD310I DESCRIPTION D SO16 (Plastic Micropackage) N D • • PIN CONNECTIONS VCC + 1 16 UVLO/S tdby IN A 2 15 OUT A IN B 3 14 OUT B IN C 4 13 OUT C Enable 5 12 GND Alarm 6 11 Sens e - OA output 7 10 OA input - OA input + 8 9 Sens e + 1/9 TD310 BLOCK DIAGRAM 1 - VCC Stdb y 0 .7V S tdb y 1 6 - UVLO/Std b y UVLO 1. 2V 2 - Input A 1 5 - Output A 3 - Input B 1 4 - Output B 4 - Input C 1 3 - Output C 1 1 - S e nse Input Co ntrol Unit 5 - E na b le 9 - S e nse Input + tsi tAI 6 - Alarm 10 - Curre nt Input 7 - C urre nt O utput 8 - Cu rren t Input + 1 2 - GND ABSOLUTE MAXIMUM RATINGS Symbol VCC Parameter Supply Voltage Vi Input Voltage Vis Sense Input Voltage Value Unit 18 V 0 to VCC V -0.3 to VCC V Tj Junction Temperature -40 to 150 o Tamb Ambient Temperature -40 to 125 o C C OPERATING CONDITIONS Symbol VCC Parameter Supply Voltage Value Unit 4 to 16 V INSTRUCTIONS FOR USE 12- 2/9 The TD310 supply voltage must be decoupled with a 1µF min. capacitor. If the application involving TD310 requires maximum output current capability, this current must be pulsed : pulse width 1µsec, duty cycle 1% at Tamb. TD310 ELECTRICAL CHARACTERISTICS VCC = 15V, Tamb = 25oC (unless otherwise specified) Symbol ICC Parameter Min. Supply Current with Inputs in High State Typ. Max. Unit 1.5 2 mA LOGIC INPUT (all inputs) VIH High Input Voltage VIL Low Input Voltage IIH High Input Current 10 pA IIL Low Input Current 10 pA Propagation Delay (10% input to 10% output) Output Rise Output Fall Tmin. ≤ Tamb ≤ Tmax. 200 60 tii Input Inhibiting Time 100 ns tdd Differential Delay Time Between Channels 20 ns tdH,teH tdL,teL 2 V 0.8 V ns 400 400 OUTPUT DRIVERS Vsod Vsid Vdem Ropd V Sourcing Drop Voltage (A/B/C outputs) Isource = 200mA 3 Sinking Drop Voltage (A/B/C outputs) Isink = 200mA 5 Demagnetising Drop Voltage (A/B/C outputs) Idemag. = 100mA 2 V V Output Pull Down Resistor 47 kΩ ALARM OUTPUT Is Low Level Sinking Current VO = 0.8V Ish High Level Sinking Current tA Alarm Output : Delay Time to Alarm Fall if Sense Input Triggered mA 5 35 1 µA 500 ns 20 mV SENSE INPUT Vios Input Offset Voltage tAi Inhibition Time if Sense Input Triggered ts Delay Time to Output Fall if Sense Input Triggered All outputs inhibited tsi Vshys 1 ms ns 600 Inhibition Time of Sense Input 300 ns Sense Hysteresis 40 mV 0 to VCC+ -1.5 V OPERATIONAL AMPLIFIER Vicm Vio GBP Common Mode Input Voltage Range Input Offset Voltage 10 Gain Bandwidth Product Avd Open Loop Gain SR Slew Rate at Unity Gain R L = 100kΩ, CL = 100pF, Vi = 3 to 7V 1 mV MHz 60 dB V/µs 0.6 STAND-BY Vstdby Standby Mode Threshold Voltage Istdby Standby Mode Supply Current 0.3 1.1 V µA 30 UNDER VOLTAGE LOCKOUT Iadj Under Voltage Level Adjust Current Vst1 Internal Stop Threshold (without external adjustement) Vhys Threshold Hysteresis µA/V 1 10.7 13.3 0.8 V V 3/9 TD310 UVLO/stbdy pin functionning modes Due to the wide supply voltage range of the TD310, the UVLO function (Under Voltage Lock Out) is externally adjustable by a resistor bridge. The bridge rate can be calculated in relation with the expected UVLO protection level as follows : VUVLO x R1 =1.2V (where R1 is the lower resistor of the bridge) R1+R2 The internal resistor sets the default UVLO value to 12V (*) and might influence the external bridge rate if the values of the external resistors are too high. The standby threshold value depends of the UVLO value as follows : Vstdby = 0.7⁄1.2 VUVLO Both UVLO and stdby functions can be inhibited by connecting the UVLO/stdby pin to VCC+ via a pull up resistor (ex 150kΩ). The following table summarizes the functions of the TD310 : Pin 16 Configuration UVLO/stdby 9/11 1 H +< - Stdby 2 L 2/3/4 15/14 /13 +> - X X L H IN IN L X L X X L +< UVLO 3 M 6 7/8/10 Sense+/Sense- Enabl In A/B/C Out Alarm Op. Consumption e A/B/C Amp. +> - Normal 5 X L OK H (1.5mA) HZ L (30µA) OK H H L H X X L L Configuration 1 : UVLO/stdby = H The TD310 is in a normal consumption state (1.5mA), the operational amplifier is normally functionning and the buffer outputs are determined by the sense comparator inputs, the enable inputs and the buffer inputs. Configuration 2 : UVLO/stdby = L The TD310 is in a low consumption state (standby mode 30µA), the buffer outputs are set to low state and the operational amplifier is in high impedance state. Configuration 3 : UVLO/stdby = M The VCC supply voltage is between VUVLO and Vstdby (**). The TD310 remains in a normal consumption state and the operational amplifier is normally functionning but the buffer outputs and the alarm pin are set to low state. (*) If the UVLO level remains unadjusted, it is recommended to bypass the UVLO/stdby pin with a 1nF capacitor. (**) If the supply voltage falls below Vstdby, the TD310 is set in standby mode (configuration 2). 4/9 TD310 TIMING DIAGRAM TIMING 1 Input A/B/C tdH tli tdL Output A/B/C TIMING 2 Input A/B/C Output A/B/C teL ts tAi Se ns e tA Alarm tAi te H Enable Under Volta ge 5/9 TD310 TYPICAL APPLICATIONS Figure 1 : THREE PHASE MOTOR DRIVE 15 V 1 µF High Volta ge MCU s ig n a ls TD310 P ulse trans forme r ON P u lse co ntrolle d inp uts OFF 3 P h as e s moto r Leve l co n trolled inp ut CONTROL UNIT 15V e nable inte rru pt a larm AD co nve rter Rse n s e 6/9 TD310 Figure 2 : THREE PHASE MOTOR LOW SIDE DRIVE Vd T1 T3 T5 L6380 L6380 KEYBOARD S T6 µP B U F MOTOR L6380 F T2 T4 T6 E T D 3 1 0 R DISP LAY Figure 3 : LOW SIDE DRIVE +1 5 V 1 µF Loa d Loa d Loa d Rs ens e 7/9 TD310 PM-DIP16.EPS PACKAGE MECHANICAL DATA 16 PINS - PLASTIC DIP a1 B b b1 D E e e3 F i L Z 8/9 Min. 0.51 0.77 Millimeters Typ. Max. 1.65 0.5 0.25 Min. 0.020 0.030 Inches Typ. Max. 0.065 0.020 0.010 20 8.5 2.54 17.78 0.787 0.335 0.100 0.700 7.1 5.1 3.3 0.280 0.201 0.130 1.27 0.050 DIP16.TBL Dimensions TD310 PM-SO16.EPS PACKAGE MECHANICAL DATA 16 PINS - PLASTIC MICROPACKAGE (SO) A a1 a2 b b1 C c1 D E e e3 F G L M Min. Millimeters Typ. 0.1 0.35 0.19 Max. 1.75 0.2 1.6 0.46 0.25 Min. Inches Typ. 0.004 0.014 0.007 0.5 Max. 0.069 0.008 0.063 0.018 0.010 0.020 45o (typ.) 9.8 5.8 10 6.2 0.386 0.228 1.27 8.89 3.8 4.6 0.5 0.394 0.244 0.050 0.350 4.0 5.3 1.27 0.62 0.150 0.181 0.020 0.157 0.209 0.050 0.024 SO16.TBL Dimensions Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics 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 SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. ORDER CODE : 1997 SGS-THOMSON Microelectronics – Printed in Italy – All Rights Reserved SGS-THOM SON Microelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. 9/9