TD310IDT

TD310 TRIPLE IGBT/MOS DRIVER WITH CURRENT SENSE ■ THREE POWER IGBT/MOS AND PULSE TRANSFORMER DRIVERS ■ CURRENT SENSE COMPARATOR ■ UNCOMMITTED OP-AMP ■ 0.6 A PER CHANNEL PEAK OUTPUT CURRENT CAPABILITY ■ LOW OUTPUT IMPEDANCE TYP: 7Ω AT N DIP-16 (Plastic Package) 200mA ■ CMOS/LSTTL COMPATIBLE INVERTING INPUT WITH HYSTERESIS ■ 4V TO 16V SINGLE SUPPLY OPERATION ■ LOW BIAS CURRENT TYP: 1.5mA ■ ADJUSTABLE UNDERVOLTAGE LOCKOUT D SO-16 (Plastic Micropackage) LEVEL ■ STAND-BY MODE ■ CHANNEL PARALLELING CAPABILITY ORDER CODE DESCRIPTION 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. TD310 includes a current sense comparator which inhibit the output drivers in case of overcurrent. An alarm output signals the even to a controller. TD310 also includes an uncommitted op-amp which can be used for current measurement (as an amplifier before the A/D input of a microcontroller) of for other general purpose. Programmable undervoltage lockout and standby mode make TD310 suitable for a large area of environment and application. Typical applications are low side IGBT and power MOSFET drive in three phase systems, pulse transformer drive, and general purpose pulse drive. December 2001 Part Number Temperature Range TD310I -40°C, +125°C Package N D • • N = Dual in Line Package (DIP) D = Small Outline Package (SO) - also available in Tape & Reel (DT) PIN CONNECTIONS (top view) VCC 1 16 UVLO/Stby INA 2 15 OUTA INB 3 14 OUTB INC 4 13 OUTC Enable 5 12 Gnd Alarm 6 11 Sense - OA Output 7 10 OA Input - OA Input + 8 9 Sense + 1/9 TD310 BLOCK DIAGRAM VCC Standby Standby VCC Stby 1.26M 0.7V UVLO TD310 140k GND 1.2V INA OUTA INB OUTB INC OUTC Enable Control Sense+ Unit Alarm Sense OA output OA input + GND OA InputGND ABSOLUTE MAXIMUM RATINGS Symbol VCC Parameter Supply Voltage Value Unit 18 0 to VCC V V Vi Input Voltage Vis Sense Input Voltage -0.3 to VCC V Tj Operating Junction Temperature -40 to 150 °C Tamb Operating Ambient Temperature -40 to 125 °C Value Unit 4 to 16 V OPERATING CONDITIONS Symbol VCC Parameter Supply Voltage INSTRUCTION FOR USE 1 - The TD310 supply voltage must be decoupled with a 1µF min. capacitor. 2 - If the application involving TD310 requires maximum output current capability, this current must be pulsed: pulse width 1µsec, duty cycle 1% at Tamb. 2/9 TD310 ELECTRICAL CHARACTERISTICS VCC = 15V, Tamb = 25°C (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 VIL IIH IIL tdH, teL tdL, teH tli tdd High Input Voltage Low Input Voltage High Input Current Low Input Current Propagation Delay (10% input to 10% output) Output Delay Output Delay Tmin. ≤ Tamb ≤ Tmax. 2 0.8 10 10 200 60 Input Inhibiting Time Differential Delay Time Between Channels 400 400 100 20 V V pA pA ns ns ns OUTPUT DRIVERS Vsod Vsid Vdem Ropd Sourcing Drop Voltage (A/B/C outputs) Isource = 200mA Sinking Drop Voltage (A/B/C outputs) Isink = 200mA Demagnetizing Drop Voltage (A/B/C outputs) Idemag. = 100mA Output Pull Down Resistor 3 V 5 V 2 V 47 kΩ 35 mA ALARM OUTPUT Is Low Level Sinking Current VO = 0.8V Ish tA High Level Sinking Current Alarm Output : Delay Time to Alarm Fall if Sense Input Triggered 5 1 500 µA ns 20 mV ms 600 ns SENSE INPUT Vios tAi ts tsi Vshys Input Offset Voltage Inhibition Time if Sense Input Triggered Delay Time to Output Fall if Sense Input Triggered All outputs inhibited Inhibition Time of Sense Input Sense Hysteresis 1 300 40 ns mV OPERATIONAL AMPLIFIER Vicm Common Mode Input Voltage Range Vio GBP Avd Input Offset Voltage Gain Bandwidth Product Open Loop Gain Slew Rate at Unity Gain (RL = 100kΩ, CL = 100pF, Vi = 3 to 7V) SR 0 to VCC+ - 1.5 V 10 mV MHz dB V/µs 1.1 V µA 1 60 0.6 STAND-BY Vstdby Istdby Standby Mode Threshold Voltage Standby Mode Supply Current 0.3 30 UNDER VOLTAGE LOCKOUT Iadj Vst1 Vhys Under Voltage Level Adjust Current Internal Stop Threshold (without external adjustment) Threshold Hysteresis 1 10.7 13.3 0.8 µA/V V V 3/9 TD310 UVLO/stdby pin functioning 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 : R1 R1 + R2 VUVLO x --------------------- = 1.2V (where R1 is the lower resistor of the bridge) 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. Moreover, the internal resistor ratio is accurate, but the the tolerance on the absolute value of each internal resistor (typically 140k and 1.26M) is about +/-20%. If an external bridge is used, we recommend to choose resistor values not greater than 10k. 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 9/11 5 2/3/4 15/14/13 6 7/8/10 Config UVLO/ stdby Sense+/ Sense- Enable In A/B/C Out A/B/C Alarm Op-Amp L 1 H +>Normal Stdby 2 L UVLO 3 M ++