LT1336 Linear Technology, LT1336 Datasheet
LT1336
Available stocks
Related parts for LT1336
LT1336 Summary of contents
Page 1
... LTC and LT are registered trademarks of Linear Technology Corporation. 16 1N4148 40V MAX** + 1000 F 13 IRFZ44 100V + 12 C BOOST IRFZ44 8 7 LT1336 Power MOSFET Driver with Boost Regulator U INTOP INBOTTOM TGATEDR BGATEDR ...
Page 2
... ORDER PART NUMBER 1 16 SWITCH 2 15 SWGND 3 14 BOOST LT1336CN 4 13 TGATEDR LT1336CS 5 12 TGATEFB LT1336IN 6 TSOURCE 11 LT1336IS + BGATEDR 9 S PACKAGE 16-LEAD PLASTIC SO NARROW = 125 ( 125 C, = 110 12V and Pins 1, 16 BOOST TSOURCE MIN ...
Page 3
... Top Gate Release Delay D4 Bottom Gate Release Delay The denotes specifications which apply over the full operating temperature range. Note calculated from the ambient temperature T J dissipation P according to the following formulas: D LT1336CN/LT1336IN )( LT1336CS/LT1336IS )(110 ...
Page 4
... LT1336 W U TYPICAL PERFORMANCE CHARACTERISTICS DC Supply Current vs Supply Voltage TSOURCE 20 18 BOTH INPUTS HIGH OR LOW LOW INTOP V = HIGH V = HIGH INBOTTOM INTOP LOW INBOTTOM SUPPLY VOLTAGE (V) 1336 G01 DC + Dynamic Supply Current vs Input Frequency ...
Page 5
... C = 3000pF LOAD 350 300 TOP DRIVER BOTTOM DRIVER 250 200 150 100 –50 – 125 100 TEMPERATURE ( C) 1336 G16 LT1336 Bottom Gate Fall Time vs Temperature 210 + V = 12V 190 170 C = 10000pF LOAD 150 130 110 3000pF LOAD 1000pF ...
Page 6
... LT1336 W U TYPICAL PERFORMANCE CHARACTERISTICS V Regulated Output BOOST vs Temperature 12.0 11.5 11.0 V – V BOOST 10.5 10.0 9.5 9.0 8.5 8.0 –50 – TEMPERATURE ( PIN FUNCTIONS I (Pin 1): Boost Regulator I SENSE SENSE An R placed between Pin 1 and V SENSE peak current. Pin 1 can be left open if the boost regulator is not used. ...
Page 7
... U U FUNCTIONAL DIAGRA + SENSE – 6V 480mV + 2 BIAS INTOP 5V 3k INBOTTOM 4 5V UVOUT 5 SGND 6 PGND 7 BGATEFB 8 W TRIP = 10.6V TOP UV TRIP = 8.7V DETECT BOTTOM UV LOCK – + 2.9V – + 2.5V LT1336 16 SWITCH 15 SWGND 14 BOOST 13 TGATEDR 12 TGATEFB 11 TSOURCE + BGATEDR 1336 FD 7 ...
Page 8
... DIAGRA 2V INTOP 0.8V 2V INBOTTOM 0.8V 12V TOP GATE DRIVER 12V 10V BOTTOM GATE 2V DRIVER 1N4148 200 H* LT1336 SWITCH I SENSE + + SWGND 3 14 INTOP BOOST 4 13 INBOTTOM TGATEDR 5 12 UVOUT TGATEFB 6 11 SGND TSOURCE + 7 PV ...
Page 9
... V BOOST The top and bottom gate drivers in the LT1336 each utilize two gate connections Gate Drive pin, which provides the turn-on and turn-off currents through an optional series gate resistor, and 2) a Gate Feedback pin which connects directly to the gate to monitor the gate-to-source voltage ...
Page 10
... SENSE 2 I SENSE 1/4W SWITCH + SWGND BOOST + LT1336 V BOOST – TSOURCE TGATEDR TGATEFB * SUMIDA RCR-664D-221KC Figure 1. Using the Boost Regulator The boost regulator works as follows: when switch S is on, the inductor current ramps up as the magnetic field builds up. During this interval energy is being stored in the ...
Page 11
... W U Power MOSFET Selection Since the LT1336 inherently protects the top and bottom MOSFETs from simultaneous conduction, there are no size or matching constraints. Therefore, selection can be made based on the operating voltage and R D1 ments ...
Page 12
... TOP The actual increase in supply current is slightly higher due to LT1336 switching losses and the fact that the gates are than DS(ON) being charged to more than 10V. Supply Current vs Switching Frequency is given in the Typical Performance Characteristics. DS(ON) The LT1336 junction temperature can be estimated by using the equations given in Note 1 of the Electrical Characteristics ...
Page 13
... OUT ducts the short-circuit current almost continuously. Figure 4 shows the LT1336 used to synchronously drive a pair of power MOSFETs in a step-down regulator applica- tion, where the top MOSFET is the switch and the bottom MOSFET replaces the Schottky diode. Since both conduc- tion paths have low losses, this approach can result in very high efficiency (90% to 95%) in most applications ...
Page 14
... Deriving the Floating Supply with the Flyback Topology). To drive a DC motor in both directions, two LT1336s can be used to drive an H-bridge output stage. In this configu- ration the motor can be made to run clockwise, counter- clockwise, stop rapidly (“ ...
Page 15
... INBOTTOM 12 5 –12V 150k UVOUT 11 6 SGND 10 0 PGND 9 8 BGATEFB + 8 10k Figure 7. 200W Class D, 10Hz to 1kHz Amplifier LT1336 60V MAX 1N4148 1000 SWITCH 15 SWGND 14 BOOST 13 IRFZ44 TGATEDR 0 330k TGATEFB 11 TSOURCE L* 10 158 IRFZ44 ...
Page 16
... Half-Bridge N-Channel Power MOSFET Driver LT1160 Half-Bridge N-Channel Power MOSFET Driver LT1162 Full-Bridge N-Channel Power MOSFET Driver Linear Technology Corporation 16 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 : (408) 434-0507 FAX TELEX 1N4148 + 10 F LT1336 SWITCH SENSE SWGND 1N4148 14 3 INTOP ...