LT3756EMSE-1#TRPBF Linear Technology, LT3756EMSE-1#TRPBF Datasheet
LT3756EMSE-1#TRPBF
Specifications of LT3756EMSE-1#TRPBF
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LT3756EMSE-1#TRPBF Summary of contents
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... CTRL input provides additional analog dimming capability. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. True Color PWM is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. ...
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... T = 150°C (H-GRADE), θ JMAX JMAX EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB orDer inForMaTion LEAD FREE FINISH TAPE AND REEL LT3756EMSE#PBF LT3756EMSE#TRPBF LT3756IMSE#PBF LT3756IMSE#TRPBF LT3756EMSE-1#PBF LT3756EMSE-1#TRPBF LT3756IMSE-1#PBF LT3756IMSE-1#TRPBF LT3756EMSE-2#PBF LT3756EMSE-2#TRPBF LT3756IMSE-2#PBF LT3756IMSE-2#TRPBF LT3756HMSE-2#PBF LT3756HMSE-2#TRPBF LT3756EUD#PBF LT3756EUD#TRPBF LT3756IUD#PBF LT3756IUD#TRPBF ...
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T noted. PARAMETER V Minimum Operating Voltage IN V Shutdown Operating I (Not Switching Voltage REF V Line Regulation REF SENSE Current Limit Threshold SENSE ...
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LT3756/LT3756-1/LT3756-2 elecTrical characTerisTics temperature range, otherwise specifications are at T noted. PARAMETER Logic Inputs/Outputs PWM Input High Voltage PWM Input Low Voltage PWM Pin Resistance to GND PWMOUT Output Low ( PWMOUT Output High ( SHDN/UVLO ...
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Typical perForMance characTerisTics V Threshold vs V (ISP – ISN) CTRL 120 100 –20 0 0.5 1 1.5 V (V) CTRL 375612 G01 FB Regulation Voltage vs Temperature 1.28 1.27 1.26 1.25 1.24 1.23 1.22 ...
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LT3756/LT3756-1/LT3756-2 Typical perForMance characTerisTics Quiescent Current 2.0 PWM = 0V 1.5 1.0 0 (V) IN 375612 G10 INTV Voltage ...
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Typical perForMance characTerisTics ISP/ISN Input Bias Current vs CTRL Voltage 0.5 1 CTRL (V) pin FuncTions (MSOP/QFN) PWMOUT (Pin 1/Pin 11): Buffered Version of PWM Signal for Driving LED Load Disconnect NMOS or Level ...
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LT3756/LT3756-1/LT3756-2 pin FuncTions CTRL (Pin 6/Pin 16): Current Sense Threshold Adjustment Pin. Regulating threshold V (ISP – ISN) an offset for 0V < V < 1V. For V CTRL CTRL sense threshold is constant at the full-scale value of 100mV. ...
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DiagraM SHDN/UVLO A6 – SHDN 1.22V + 2.1µA 1.25V SHORT-CIRCUIT DETECT + SCILMB A10 + – 150mV – ISN 5k ISP CTRL BUFFER CTRL + + 1.1V A3 – 140µA V REF – 170k LT3756/LT3756-1/LT3756-2 FB ...
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LT3756/LT3756-1/LT3756-2 operaTion The LT3756 is a constant-frequency, current mode control- ler with a low side NMOS gate driver. The GATE pin and PWMOUT pin drivers, and other chip loads, are powered from INTV , which is an internally regulated supply. ...
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INTV Regulator Bypassing and Operation CC The INTV pin requires a capacitor for stable operation CC and to store the charge for the large GATE switching cur- rents. Choose a 10V rated low ESR, X7R or X5R ceramic ...
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LT3756/LT3756-1/LT3756-2 applicaTions inForMaTion When V is higher than 1.2V, the LED current is regu- CTRL lated to: 100mV = I LED R LED The LED current programming feature can increase total dimming range by a factor of 10. The CTRL ...
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PWM pin to modulate the current source between zero and full current to achieve a precisely pro- grammed average current. To make PWM dimming more accurate, the switch demand current is stored on the VC ...
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LT3756/LT3756-1/LT3756-2 applicaTions inForMaTion important when operating at high ambient temperatures. The majority of the power dissipation in the IC comes from the supply current needed to drive the gate capacitance of the external power MOSFET. This gate drive current can ...
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Therefore, a 4.7µF capacitor is an appropriate selection for a 400kHz boost regulator with 12V input, 48V output and 1A load. voltage ripple of 100mV, the input capaci- With the same V IN tor for a buck converter ...
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LT3756/LT3756-1/LT3756-2 applicaTions inForMaTion Schottky Rectifier Selection The power Schottky diode conducts current during the interval when the switch is turned off. Select a diode rated for the maximum SW voltage. If using the PWM feature for dimming important ...
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Loop Compensation The LT3756 uses an internal transconductance error ampli- fier whose VC output compensates the control loop. The external inductor, output capacitor and the compensation resistor and capacitor determine the loop stability. The inductor and output capacitor ...
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LT3756/LT3756-1/LT3756-2 applicaTions inForMaTion GND COMPONENT DESIGNATIONS ...
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Typical applicaTions 30W White LED Headlamp Driver with Thermal Derating 60V IN (100V TRANSIENT 4.7µF LT3756/LT3756-1/LT3756-2 L1, 22µ SHDN/UVLO ISP REF 185k 16.9k LT3756-2 CTRL 100k ISN INTV ...
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LT3756/LT3756-1/LT3756-2 Typical applicaTions Buck-Boost Mode LED Driver 65V V 4.7µ SHDN/UVLO V 185k REF LT3756-2 CTRL INTV CC 100k OPENLED PWM SS RT PWMOUT 0.1µF V GND C 35.7k 300kHz 39k 4700pF L1: ...
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DescripTion 2.845 0.102 (.112 .004) 5.23 (.206) MIN 0.305 0.038 (.0120 .0015) TYP RECOMMENDED SOLDER PAD LAYOUT DETAIL “A” 0.254 (.010) GAUGE PLANE DETAIL “A” 0.18 (.007) NOTE: 1. DIMENSIONS IN MILLIMETER/(INCH) 2. DRAWING NOT TO SCALE 3. DIMENSION ...
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LT3756/LT3756-1/LT3756-2 package DescripTion 3.50 ± 0.05 1.45 ± 0.05 (4 SIDES) 2.10 ± 0.05 RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS PIN 1 TOP MARK (NOTE 6) NOTE: 1. DRAWING CONFORMS TO JEDEC PACKAGE OUTLINE MO-220 VARIATION (WEED-2) 2. DRAWING NOT ...
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... Revised Entire Data Sheet to Include H-Grade Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...
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... OUT(MAX) = 45V, Dimming = 3000:1, I < 1µ 45V, Dimming = 3000:1, I < 1µ 45V, Dimming = 3000:1, I < 1µ 75V, True Color PWM Dimming = 3000:1, OUT(MAX) = Ext FET, True Color PWM Dimming = 3000:1, LT 0310 REV B • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 2008 80 375612fb ...