LTC1693 High Speed Single/Dual N-Channel MOSFET Drivers FEATURES DESCRIPTIO n Dual MOSFET Drivers in SO-8 Package The LTC 1693 family drives power N-channel MOSFETs or Single MOSFET Driver in MSOP Package at high speed. The 1.5A peak output current reduces n 1GW Electrical Isolation Between the Dual Drivers switching losses in MOSFETs with high gate capacitance. Permits High/Low Side Gate Drive The LTC1693-1 contains two noninverting drivers while n 1.5A Peak Output Current the LTC1693-2 contains one noninverting and one invert- n 16ns Rise/Fall Times at V = 12V, C = 1nF CC L ing driver. These dual drivers are electrically isolated and n Wide V Range: 4.5V to 13.2V CC independent. The LTC1693-3 is a single driver with an n CMOS Compatible Inputs with Hysteresis, output polarity select pin. Input Thresholds are Independent of V CC n All MOSFET drivers offer V independent CMOS input Driver Input Can Be Driven Above V CC CC n thresholds with 1.2V of typical hysteresis. They can level- Undervoltage Lockout n shift the input logic signal up or down to the rail-to-rail V Thermal Shutdown CC drive for the external MOSFET. U APPLICATIO S The LTC1693 contains an undervoltage lockout circuit and a thermal shutdown circuit that disable the external n Power Supplies N-channel MOSFET gate drive when activated. n High/Low Side Drivers n Motor/Relay Control The LTC1693-1 and LTC1693-2 come in an 8-lead SO pack- n Line Drivers age. The LTC1693-3 comes in an 8-lead MSOP package. n Charge Pumps , LTC and LT are registered trademarks of Linear Technology Corporation. TYPICAL APPLICATION Two Transistor Forward Converter V IN 48VDC + C1 C2 10% 330F 1.5F R1 63V 63V 0.068 RETURN D1 MURS120 L1 Q1 T1 1.5H MTD20NO6HD 13:2 V 12V OUT 1.5V/15A C5 C3 D2 C4 LTC1693CS8-2 1F 4700pF MURS120 1 8 0.1F IN1 V CC1 25V R3 17 2 7 R2 249 GND1 OUT1 D3 C6 C11 12V + IN 5.1 3 6 1% MURS120 470F 0.1F 20 IN2 V CC2 BOOST Q2 6.3V 4 5 R4 C9 19 GND2 OUT2 Q4 Si4420 8 1.24k LT1339 TG 1800pF Si4420 2 1 1% C7 C8 5% SYNC Q3 BAT54 1F 1F NPO 2 18 MTD20NO6HD 5V TS REF R5 R6 100 4 11 + RETURN 2.49k SL/ADJ SENSE R7 100 D4 3 12 1% C SENSE MBRO530T1 T LTC1693CS8-2 1 8 5 16 I BG IN1 V AVG CC1 R8 6 14 2 7 SS PHASE GND1 OUT1 301k 7 13 3 6 1% IN2 V V RUN/SHDN C CC2 10 9 4 5 V V GND2 OUT2 C10 REF FB C12 R9 0.1F 100pF 12k SGND PGND R10 C13 C1: SANYO 63MV330GX 10k 1F C2: WIMA SMD4036/1.5/63/20/TR 8 15 C14 C15 1% C6: KEMET T510X477M006AS ( 8) 3300pF 0.1F L1: GOWANDA 50-318 T1: GOWANDA 50-319 1693 TA01 1 U ULTC1693 ABSOLUTE MAXIMUM RATINGS (Note 1) Supply Voltage (V ) .............................................. 14V Operating Ambient Temperature Range CC Inputs (IN, PHASE) ................................... 0.3V to 14V C-Grade ................................................... 0 C to 70 C Driver Output ................................. 0.3V to V + 0.3V I-Grade ................................................40 C to 85 C CC GND1 to GND2 (Note 5) ..................................... 100V Storage Temperature Range ................. 65 C to 150 C Junction Temperature.......................................... 150 C Lead Temperature (Soldering, 10 sec).................. 300 C PACKAGE/ORDER INFORMATION TOP VIEW TOP VIEW TOP VIEW IN1 1 8 V IN1 1 8 V CC1 CC1 IN 1 8 V CC GND1 2 7 OUT1 GND1 2 7 OUT1 NC 2 7 OUT PHASE 3 6 NC IN2 V IN2 3 6 V 3 6 CC2 CC2 GND 4 5 NC GND2 OUT2 GND2 OUT2 4 5 4 5 MS8 PACKAGE 8-LEAD PLASTIC MSOP S8 PACKAGE S8 PACKAGE 8-LEAD PLASTIC SO 8-LEAD PLASTIC SO T = 150 C, q = 200 C/ W JMAX JA T = 150 C, q = 135 C/ W T = 150 C, q = 135 C/ W JMAX JA JMAX JA S8 PART S8 PART MS8 PART ORDER PART ORDER PART ORDER PART NUMBER MARKING NUMBER MARKING NUMBER MARKING LTC1693-1CS8 LTC1693-2CS8 16931 16932 LTC1693-3CMS8 LTEB LTC1693-1IS8 16931I LTC1693-2IS8 16932I Consult factory for Industrial and Military grade parts. The l denotes specifications which apply over the full operating ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T = 25 C. V = 12V, unless otherwise noted. A CC SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V Supply Voltage Range 4.5 13.2 V CC I Quiescent Current LTC1693-1, LTC1693-2, IN1 = IN2 = 0V (Note 2) l 400 720 1100 m A CC LTC1693-3, PHASE = 12V, IN = 0V l 200 360 550 m A I Switching Supply Current LTC1693-1, LTC1693-2, C = 4.7nF, f = 100kHz l 14.4 20 mA CC(SW) OUT IN LTC1693-3, C = 4.7nF, f = 100kHz l 7.2 10 mA OUT IN Input V High Input Threshold l 2.2 2.6 3.1 V IH V Low Input Threshold l 1.1 1.4 1.7 V IL I Input Pin Bias Current l 0.01 10 m A IN V PHASE Pin High Input Threshold (Note 3) l 4.5 5.5 6.5 V PH I PHASE Pin Pull-Up Current PHASE = 0V (Note 3) l 10 20 45 m A PH Output V High Output Voltage I = 10mA l 11.92 11.97 V OH OUT V Low Output Voltage I = 10mA l 30 75 mV OL OUT R Output Pull-Down Resistance 2.85 W ONL R Output Pull-Up Resistance 3.00 W ONH I Output Low Peak Current 1.70 A PKL I Output High Peak Current 1.40 A PKH 2 U W U U WWW