| Specifications | LTC3453 - Synchronous Buck-Boost High Power White LED Driver Data Sheet Linear Technology Corporation |
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| Specifications | LTC3453 - Synchronous Buck-Boost High Power White LED Driver Data Sheet Linear Technology Corporation |
| Business section |
| Specifications | LTC3453 - Synchronous Buck-Boost High Power White LED Driver Data Sheet Linear Technology Corporation |
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| Content | LTC3453 2 3453fa VIN, PVIN, SW1, SW2, VOUT Voltage.–0.3V to 6V LED1 to LED4 Voltage.–0.3V to (VOUT + 0.3V) or 6V VC, EN1, EN2, ISET1, ISET2 Voltage.–0.3V to (VIN + 0.3V) or 6V LED1 to LED4 Peak Current.250mA Storage Temperature Range.–65°C to 125°C Operating Temperature Range (Note 2).–40°C to 85°C Junction Temperature (Note 3).125°C ORDER PART NUMBERUF PART MARKING TJMAX = 125°C, θJA = 40°C/W, θJC = 2.6°C/W EXPOSED PAD (PIN 17) IS PGND, MUST BE SOLDERED TO PCB Consult LTC Marketing for parts specified with wider operating temperature ranges. 3453LTC3453EUF ABSOLUTE AXIU RATIGSWWWUPACKAGE/ORDER IFORATIOUUW (Note 1) 16151413 5678 UF PACKAGE 16-LEAD (4mm × 4mm) PLASTIC QFN 9 10 1117 12 4 3 2 1 TOP VIEW VIN EN1 ISET1 LED1 VC EN2 ISET2 LED4 PV IN SW1 SW2 V OUT GND LED2 LED3 GND Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ PARAMETERCONDITIONSMINTYPMAXUNITS Input Supply Voltage●2.75.5V Input DC Supply Current Normal Operation2.7V ≤ VIN ≤ 5.5V, RISET1||RISET2 = 51.1k, ILEDx = 0 (Note 4)0.61mA Shutdown2.7V ≤ VIN ≤ 5.5V; VEN1 = VEN2 = 0V618µA UVLOVIN < UVLO Threshold35µA Undervoltage Lockout ThresholdVIN Rising●22.3V VIN Falling1.61.9V EN1,2 DC Threshold for Normal Operation2.7V ≤ VIN ≤ 5.5V, VEN1,2 Rising●0.651V EN1,2 DC Threshold for Shutdown (ILEDx = 0)2.7V ≤ VIN ≤ 5.5V, VEN1,2 Falling●0.20.63V EN1,2 Input CurrentVEN1,2 = 3.6V●–11µA ISET1,2 Servo VoltageRISET1,2 = 4.12k, 0°C ≤ TA ≤ 85°C788800812mV RISET1,2 = 4.12k, –40°C ≤ TA ≤ 85°C●780800812mV LED Output Current RatioILED/(ISET1 + ISET2), ILEDx = 75mA, VLEDx = 300mV,365384403mA/mA 2.7V ≤ VIN ≤ 5.5V●357384403mA/mA LED Output Current Matching(MAX – MIN)/[(MAX + MIN)/2] • 100%, ILEDx = 75mA26% VLEDx = 300mV LED Pin Drain VoltageILEDx = 75mA130mV Regulated Maximum VOUTVLEDx = 0V●4.44.54.6V PMOS Switch RONSwitches A and D, @ 100mA0.3Ω NMOS Switch RONSwitches B and C, @ 100mA0.25Ω Forward Current LimitSwitch A112516122100mA Reverse Current LimitSwitch D200mA ELECTRICAL CHARACTERISTICSThe ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C, VIN = VOUT = 3.6V unless otherwise noted. (Note 2) |
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| Following Datasheets | 3470fc (20 pages) 3476fa-1 (12 pages) 3477fb (20 pages) 3494fb_1 (12 pages) 35-1_2 (2 pages) 35_2 (1 pages) 3500fb (28 pages) 3508fb (24 pages) 350_appnote (1 pages) 350_appnote2 (1 pages) |
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