LT3492EUFD#PBF Linear Technology, LT3492EUFD#PBF Datasheet
LT3492EUFD#PBF
Specifications of LT3492EUFD#PBF
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LT3492EUFD#PBF Summary of contents
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... The CTRL pin is used to adjust the LED current either for analog dimming or overtemperature protection. 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. Protected by U.S. Patents, including 7199560, 7321203, and others pending. 1μ ...
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... TAPE AND REEL LT3492EFE#PBF LT3492EFE#TRPBF LT3492IFE#PBF LT3492IFE#TRPBF LT3492EUFD#PBF LT3492EUFD#TRPBF LT3492IUFD#PBF LT3492IUFD#TRPBF Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. Consult LTC Marketing for information on non-standard lead based fi nish parts. ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T OVP1-3 = 0V, unless otherwise noted. PARAMETER V Operation Voltage IN V Undervoltage Lockout IN Full-Scale LED Current Sense Voltage One-Tenth Scale LED Current Sense Voltage ISPn/ISNn Operating Voltage V ...
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LT3492 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T OVP1-3 = 0V, unless otherwise noted. PARAMETER ISP1-3 Input Bias Current ISP1-3, ISN1-3 Idle Input Bias Current ISP1-3, ISN1-3 Input Bias Current in Shutdown SHDN Input Low Voltage SHDN ...
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TYPICAL PERFORMANCE CHARACTERISTICS Quiescent Current 14 PWM1 PWM1 GND, NOT SWITCHING (V) IN 3492 G01 Switch Current Limit vs Temperature 1200 ...
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LT3492 TYPICAL PERFORMANCE CHARACTERISTICS Switch Frequency vs Temperature 1.4 FADJ = 0.5V 1.3 1.2 1.1 1.0 50 100 –50 – TEMPERATURE (°C) 3492 G07 V V Threshold vs ISP- ISN Temperature 103 CTRL = 1. ...
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PIN FUNCTIONS CTRL1, CTRL2, CTRL3: LED Current Adjustment Pins. Sets voltage across external sense resistor between ISP and ISN pins of the respective converter. Setting CTRL voltage to be less than 1V will control the current sense voltage to be ...
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LT3492 BLOCK DIAGRAM V SENSE + R SENSE ISP1 R3 OVP1 PWM1 CTRL1 + A8 – CTRL BUFFER INTERNAL IN C3 REGULATOR SHDN ...
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APPLICATIONS INFORMATION Operation The LT3492 uses a fi xed frequency, current mode control scheme to provide excellent line and load regulation. Op- eration can be best understood by referring to the Block Diagram in Figure 1. The oscillator, ramp generator, ...
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LT3492 APPLICATIONS INFORMATION is similar to your application and tune the compensation network to optimize the performance. The stability, PWM dimming waveforms and the start-up time should be checked across all operating conditions. Open-LED Protection The LT3492 has open-LED protection ...
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APPLICATIONS INFORMATION Table 1. Ceramic Capacitor Manufacturers VENDOR TYPE Taiyo Yuden Ceramic AVX Ceramic Murata Ceramic Kemet Ceramic TDK Ceramic Inductor Selection Inductor value is selected based on switching frequency and desired transient response. The data sheet applica- tions show ...
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LT3492 APPLICATIONS INFORMATION this capability. Some margin to data sheet limits is included, along with provision for 200mA inductor ripple current. For boost mode converters: V IN(MIN) I ≅ 0.4A OUT(MAX) V OUT(MAX) For buck mode converters: ≅ 0.4A I ...
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TYPICAL APPLICATIONS PV IN 58V 10 LEDs 1μF C1-C3, C7: MURATA GRM31CR72A105KA01L C4-C6: MURATA GRM21BR71H224KA01 D1-D3: DIODES B1100 L1-L3: TDK VLF5014AT-330MR50 300:1 PWM Dimming at 100Hz PWM 5V/DIV I LED 0.5A/DIV I L 0.5A/DIV 5μs/DIV Minimum ...
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LT3492 TYPICAL APPLICATIONS PV IN 12V 1μF TG1 12 LEDs SW1 ISP1-3 ISN1 PWM1-3 1μF SHDN C1: MURATA GRM31MR71C225KA35 C2-C4: MURATA GRM31CR72A105KA01L C5: MURATA GRM31MR71H105KA88 D1-D3: DIODES B1100 L1-L3: TDK VLF5014AT-220MR62 M1-M3: ZETEX ZXMP6A13F ...
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TYPICAL APPLICATIONS PV IN 12V SW1 TG1 ISP1-3 ISN1 12V C5 PWM1-3 1μF SHDN C1: MURATA GRM31MR71C225KA35 C2-C4: MURATA GRM31CR72A105KA01L C5: MURATA GRM31MR71H105KA88 D1-D3: DIODES B1100 L1-L3: TDK VLF5014AT-220MR62 M1, M2: ZETEX ZXMP6A13F 1000:1 ...
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LT3492 TYPICAL APPLICATIONS Triple Boost 100mA × 9 LED Driver with 16V 357k CTRL1-3 40.2k C2 1μF TG1 9 LEDs SW1 ISP1-3 ISN1 PWM1-3 1μF SHDN C1: MURATA GRM31MR71C225KA35 C2-C5: MURATA GRM31MR71H105KA88 ...
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TYPICAL APPLICATIONS Triple LED Driver Driving LED Strings in Buck, Boost and Buck-Boost Modes V IN 10V TO 16V C1 3.3μF 3 TG1 2 LEDs ISP1-3 ISN1 PWM1-3 SHDN 3000:1 PWM Dimming at 100Hz for CH1 (Buck Mode) ...
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LT3492 TYPICAL APPLICATIONS PV IN 48V ISP1 330mΩ ISN1 TG1 M1 80.6k 10 LEDs 0.3A 5.6k M4 OVP1 L1 22μH 2k SW1 ISP1-3 ISN1 PWM1-3 1μF SHDN C1-C3, C7: MURATA GRM31CR72A105KA01L C4-C6: MURATA GRM21BR72A474KA73 ...
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PACKAGE DESCRIPTION 4.75 (.187) 6.60 0.10 4.50 0.10 SEE NOTE 4 RECOMMENDED SOLDER PAD LAYOUT 4.30 – 4.50* (.169 – .177) 0.09 – 0.20 (.0035 – .0079) (.020 – .030) NOTE: 1. CONTROLLING DIMENSION: MILLIMETERS 2. DIMENSIONS ARE IN MILLIMETERS ...
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LT3492 PACKAGE DESCRIPTION 4.50 0.05 3.10 0.05 2.50 REF 2.65 0.05 0.25 0.05 0.50 BSC RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED PIN 1 TOP MARK (NOTE 6) 5.00 0.10 (2 SIDES) ...
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... Corrected Pin Names for FE Package in Pin Confi guration Section 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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... Dimming = 3000:1, I < 1μA, OUT(MAX 75V, True Color PWM Dimming = 3000:1, OUT(MAX) = 100V, True Color PWM Dimming = 3000:1, OUT(MAX) = Ext FET, True Color PWM Dimming = 3000:1, OUT(MAX) LT 0410 REV A • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2009 3492 TA06b < 1μA, 3492fa ...