19-0132, Rev 1; 3/93 Dual High-Speed 1.54 MOSFET Drivers General Description The MAX4426/4427/4428 are dual monolithic MOSFET drivers designed to translate TTL/CMOS inputs to high voltage/current outputs. The MAX4426 is a dual inverting power MOSFET driver. The MAX4427 's a dual noninvert- ing power MOSFET driver, and the MAX4428 contains one inverting section and one noninverting section. Delay times are nearly independent of Vop (see Typical Operating Characteristics). High-current output drivers rapidly charge and discharge the gate capacitance of even the largest power MOSFETs to within millivolts of the supply rails. This produces the power MOSFETs minimum on resistance. The MAX4426/4427/4428's high speed mini- mizes power losses in switching power supplies and DC-DC converters. Applications Switching Power Supplies DC-DC Converters MA MAIL/VI Features @ Upgrade for TSC4426/4427/4428 @ Lower On Resistance: 4Q vs. 7Q @ Shorter Delay Times: tpi 10ns vs. 30ns tp2 25ns vs. 50ns @ 1.5A Peak Output Current Fast Rise and Fall Times: Typically 20ns with 1000pF Load # Wide Operating Range: 4.5V to 18V @ Low Power Consumption: 1.8mA with Logic 1 Input 200A with Logic 0 input @ TTL/CMOS Compatible @ Latchup Protected - Withstand >500mA Reverse Current @ ESD Protected Ordering Information _ PART TEMP. RANGE PIN-PACKAGE | Motor Controllers | MAX4426CPA OC 10470 8 Plastic DIP Pin-Diode Drivers MAX4426CSA OCto+70C 8SO0 Charge-Pump Voltage Inverters _MAX4426C/D OC to +70C Dice" MAX4426EPA -40 C to +85 C 8 Plastic DIP | . fi . MAX4426ESA -40 C to +85 C aso | Pin Configurations moses 40 C to +85 C 8 CERDIP TOP VIEW MAX4426MUA -55 Clo +125 C 8 CERDIP** _ Ordering information continued on last page. NC. [4] fs | NC * Dice are tested at Ta = +25C. INA [2 | Maxim 17 | OUTA 24 75 * Contact factory for availability and processing to MiL-STD-883 GNO[ 3] = max4a26 eo! voo . Ina [5 OUTB i i i i 4 S INVERTING Typical Operating Circuit DIP/SO Vp - +18V e a , C3 e NC. [4 la | NC 47ub Oot INA |2 17 | OUTA 2.4 7.5 : eno [3] Uae? 6 Von : Ax 5 r our MAX4426 INB 4] NONINVERTING . INPUT | . OUTPUT? DIP/SO A 1 2] 5f INPUT | : QUIPUT? ne. [4] la] NC : ina [2] ALAXxLAA|7) OUTA ono a] MAKH28 TE NBL 4 Eon 4 5 DIP/SO MWA XKIsbvl Maxim integrated Products 1 Call toll free 1-800-998-8800 for free samples or literature. 82rb/LovYr/9CreUXUNNMAX4426/4427/4428 Dual High-Speed 1.54 MOSFET Drivers ABSOLUTE MAXIMUM RATINGS Supply Voltage Vop to GND . Input Voltage Continuous Power Dissipation (Ta = +70C) Plastic DIP (derate 9.09mW/"C above +70C) SO (derate 5.88mW/"C above +70C) CERDIP (derate 8. 00mW/"C above 70C) +20V Operating Temperature Ranges: EA ANID MAX442_C__ ........ OCto+70C Yop + 0.3V to GND - 0.3V MAX442 Eo. -40'C to +85 C 727mW MAX442_MJA a -b5 C to +125 C Storage Temperature Range ..... -55'C to +160 C Leen 471mW : 640m Maximum Chip Temperature Len +150C a Lead Temperature (soldering. 10 sec) . . +300 C Stresses beyond those listed under "Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (Vop = +4.5V to +18V, Ta = TMIN to TMAx, unless otherwise specified.) CONDITIONS PARAMETER SYMBOL MIN TYP MAX UNITS Logic 1 Input Voltage VIH 24 Vv Logic 0 Input Voltage VIL 0.8 Vv Input Current liN VIN = OV to 18V -1 1 HA Output High Voltage VOH No load Vpn-25 mv Output Low Voltage VOL No load 25 mv VIN = 0.8V for inverting stages, TA=+25C 4 10 VIN = 2.4V for noninverting : = stages TA = TMIN to TMAX 5 12 Output Resistance ROUT 100 = eM aA aos oy AS IM N MA : Q Vin = 2.4V for inverting stages. | Ta=+25C 4 10 VIN = 0.8V for noninverting stages Ta = TMIN to TMAX 5 12 Peak Output Current IPK VDD = 18V 1.5 A VIN = +3V Ta = +25C 18 45 both inputs Power-Supply Ta = TMIN to Tmax 25 8.0 Current IsuPP_ }__ er _ ma VIN = OV Ta = +25C 0.2 0.4 both inputs | T= TMIn to Tmax 03 06 . Ta = +25C 20 30 Rise Time (Note 1) {R _- -____. ns TA = TMIN to TMAX 25 40 : TA= 425C 20 30 Fall Time (Note 1) tr ns Ta = TMIN to TMAX 25 40 TA = +25 10 30 to4 - = Delay Time (Note t) | _ _TA= TMIN to TMAX _ 15 40 ns TA = +25'C 25 50 tbe el Ta = TMIN to TMAX 30 60 Note 1: Switching times guaranteed by design, not tested. See Figure 1 for timing measurement circuit IVIAKItsvIDual High-Speed 1.5A MOSFET Drivers TIME (ns} TIME (ns} SUPPLY CURRENT (mA) MAXI VI MAX4426 RISE AND FALL TIME vs. SUPPLY VOLTAGE Ci = 1000pF Ta=+25C 5 10 15 20 SUPPLY VOLTAGE (V) MAX4426 DELAY TIME %5 vs. TEMPERATURE | | CL = 1000pF 30 E-Vop = +18V 26 | tbe 20 fl 15 = 10 | | tor 5 0 50 -25 0 2% 50 75 100 125 TEMPERATURE ( C) MAX4426 SUPPLY CURRENT vs. FREQUENCY PTT | | | tC = 1000pF an | ~~ Ta- +25C | Von = 418V } 20 sot 10 | 0 Lili 1 1 10 100 FREQUENCY (kHz) < Ss S W + ed X\ \ \ \ 1000 SUPPLY CURRENT {mA} TIME (ns) (Vpp - Vou7) {V} 0 0 10 MAX4426 DELAY TIME vs. SUPPLY VOLTAGE C1 = 1000pF Ta = 425C 5 10 15 SUPPLY VOLTAGE (V) MAX4426 SUPPLY CURRENT vs. CAPACITIVE LOAD Tas +25C Vop = +18V 200kHz 20kHz 100 1000 CAPACITIVE LOAD (pF) MAX4426 OUTPUT HIGH VOLTAGE vs. SOURCE CURRENT Ta = 425C Vpn = +8V Vop = +13V, 10 20 30 40 50 60 70 80 90 SOURCE CURRENT (mA) 20 400kH2 10000 100 TIME {ns} TIME (ns} OUTPUT VOLTAGE (V) Typical Operating Characteristics MAX4426 RISE AND FALL TIME vs. TEMPERATURE 40 , Ci - 1000pF Vou = +18V 30 20 10 | 0 | 300-25 0 25) 8075100 125 TEMPERATURE ( C} MAX4426 RISE AND FALL TIME vs. CAPACITIVE LOAD Ta = 425 C Vou - +18V 10 100 CAPACITIVE LOAD (nF) 1000 10000 MAX4426 OUTPUT LOW VOLTAGE vs. SINK CURRENT TTT TTT Ta - +25 C | | Vpp - +8V | : | Vop 443V 03 Sore . 4 4 Vin 18V 0 1 0 10 20 30 40 50 60 70 80 90 100 SINK CURRENT (1mA} 8SCrb/Lovr/9CrrXUNMAX4426/4427/4428 Dual High-Speed 1.54 MOSFET Drivers Applications Information The MAX4426/4427/4428 have easy-to-drive inputs. However, these inputs must never be allowed to stay between VIH and VIL for more than 50ns. Unused inputs should always be connected to ground to minimize supply current. Drivers can be paralleled on the MAX4426 or MAX4427 by tying both inputs together and both outputs together. Supply bypassing and grounding are extremely impor- tant with the MAX4426/4427/4428, as the peak supply current can be as high as 3A, which is twice the peak output current. Ground drops are a form of negative feedback with inverters, and hence will degrade the delay and transition time of the MAX4426/MAX4428. Suggested bypass capacitors are a 4.7uF (low ESR) ca- pacitor in parallel with a 0. 1uF ceramic capacitor, mounted as close as possible to the MAX4426/4427/4428. Use a ground plane if possible or separate ground returns for inputs and outputs. Output voltage ringing can be mini- mized with a 5Q to 20Q resistor in series with the output, but this will degrade output transition time. Ringing may be undesirable due to the large current that flows through capacitive loads when the voltage across these loads transitions quickly. Operation at the upper end of the supply voltage range (>15V) requires that a capacitance of at least 50pF be present at the outputs. This prevents the supply voltage provided to the die (which can be different from that seen at the IC supply pin) from exceeding the 20V absolute maximum rating, due to overshoot. Since at least 50pF of gate capacitance is present in all higher power FETs, this requirement is easily met. Power Dissipation The MAX4426/4427/4428 power dissipation consists of input inverter losses, crowbar current through the output devices, and output current (either capacitive or resis- tive). The sum of these must be kept below the maximum power dissipation limit. The DC input inverter supply current is 0.2mA when both inputs are low and 2mA when both inputs are high. The crowbar current through an output device making a transition is approximately 100mA for a few nanosec- onds. This is a small portion of the total supply current, except for high switching frequencies or a small load capacitance (100pF). The MAX4426/4427/4428 power dissipation when driving a ground-referenced resistive load is: P = (D) (ron(max)) (ILOaD*) where D is the percentage of time the MAX4426/4427/4428 output pulls high, roN(MAXx) is the MAX4426/4427/4428 maximum on resistance, and ILOAD is the MAX4426/4427/4428 load current. For capacitive loads, the power dissipation is: P = (CLOAD) (VoD) (FREQ) where CLOAD is the capacitive load. Vpp is the MAX4426/4427/4428 supply voltage, and FREQ is the toggle frequency. AVIA KI viDual High-Speed 1.54 MOSFET Drivers +18V INVERTING OUTPUT NONINVERTING QUIPUT gy, Vpp = +18V a7ur2 z O1pF MAXI ~ MAX4428 INPUT 0 [>= ft OUTPUT TE 1000pF INPUT 4 [>-] -- OUTPUT | 1000pF INPUT RISE ' AND FALL 45Y00 = nr | . TIMES = 5ns , 30% +04y 10 Figure 1, Inverting and Noninverting Test Circuit IVMIAKI/vI __ Ordering Information (continued) | PART = TEMP. RANGE PIN-PACKAGE | MAX4427CPA OC 10 +70'C 8 Plastic DIP | | MAX4427CSA OC to+70C 850 MAXad27CID. OC to 70'S. Dice | maxaao7EPA _ -40 Cto +85C 8 Plastic DIP MAX4427ESA -40C to +85C 8SO | maxaazresA 40. C10 +B5C 8 CERDIP MAX4427MJA 55C to +125 C 8 CERDIP* MAX4428CPA ss OC 10. 470 8 Plastic DIP | MAX4428CSAs0'C 10 +70 C 880 MAX4428C/D OCto+70C Dice* MAX4428EPA -40'C 10 +85'C 8 Plastic DIP | MAX4428ESA =s--40C to. #88 C 8 SO | waxaazerJAa -40C to +85 C & CERDIP MAX4428MJA__-85'C to 125C 8 CERDIP * Oice are tested at Ta = +25C. Contact factory for availability and processing to MIL-STD-883. Chip Topography OUTA (OUTA FOR MAX4427/MAX4428) INA 076 (193mm) OND > Yop INB OUTB (OUTB FOR MAX4426) .080" (2.032mm) SUBSTRATE CONNECTED TO Vob: TRANSISTOR COUNT: 26. MAX4427/MAX4428 Scrr/Loerr/9crrxXVWNMAX4426/4427/4428 Dual High-Speed 1.54 MOSFET Drivers Package Information 0.395 (1.033; NA* LEAD #1 0.030 O10 eae Oo are 279 RAD QOUOUU 0.025 - 0015, || (0635 a381) 0.130 - 0.005 0.040 0.300 0.320 0.020 (smo on] >||* ita? 7620 8128) | J 10808) 7 9908 0.015 +f UY ag 9 19 w\* 5279 0381 0.020 yy em ba oso) ly Y | O00 - 0.010 0.025 bar als = I san 0754 ose Bae 0.635 lazss O63 8 Lead Plastic DIP Oye = 70 C/W 0400 110 160) A* a ee LEAD #1 te | 0029 0.150 - 0.158 0.181 - 0.205 0.228 - 0.244 0251 yay S ~ 10635) RAY (3810 > 4.013) (4597 - 5.207) 15791 - 6198) 17301 { LEAD #1. 4 { + ~ __ + ih 0060 0.005 . 014 0.018 a 0.050 OO 0200 8 Oe IPR 0356 0457) | > fiz BSE o20 0070 wong, AX a 0180 saa 0.188 - 0,197 ors iosoe 1 778| 0125 wy >| {io ja775 5 004) , 10.361 sb | 13174 - 5 ae 0 Gas VY 4 ja 0008 gol? ous 90 a ay OO won | be 7187 03 10.457 - 0559) 0.053 eg 36 mq GO1B - OOD | Q.004 0.008 (1.346 - 1.753) 0.007 .009 0100 - 0910 10457 - 00511 Oa - (0102 - 0.203) [0178 0.229) pata jen po Oa 8 Lead Small Outline 8 Lead CERDIP Oy, = 170 CAV Oi, = 125 C/W Oye = 80 C/W O. - 55 CW Maxin cannot assume responsibility for use of any citcuttry other than circuitry entirely embodied in a Maxim product. No circuit paterit Heenses are ingle Maxim reserves the right to change the circuitry and specifications without notice at any time 6 Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 1993 Maxim Integrated Products Printed USA IMA AIS/VI is aregistered trademark of Maxim Integrated Products