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LTC3217EUD Datasheet(PDF) 2 Page - Linear Technology |
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LTC3217EUD Datasheet(HTML) 2 Page - Linear Technology |
2 / 12 page LTC3217 2 3217f VBAT, CPO to GND ....................................... –0.3V to 6V EN1, EN2 .................................... –0.3V to (VBAT + 0.3V) ICPO (Note 2) ....................................................... 600mA IILED1-4 (Note 3) .................................................. 150mA CPO Short-Circuit Duration ............................. Indefinite Operating Temperature Range (Note 4) ...–40 °C to 85°C Storage Temperature Range ..................–65 °C to 125°C ORDER PART NUMBER TJMAX = 125°C, θJA = 68°C/W EXPOSED PAD (PIN 17) IS GND MUST BE SOLDERED TO PCB LTC3217EUD ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) Consult LTC Marketing for parts specified with wider operating temperature ranges. QFN PART MARKING LBTQ 16 15 14 13 5 6 7 8 TOP VIEW 17 UD PACKAGE 16-LEAD (3mm × 3mm) PLASTIC QFN 9 10 11 12 4 3 2 1 C1P CPO EN1 LED1 C2M EN2 ISET2 ISET1 ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VBAT = 3.6V, C1 = C2 = C3 = C4 = 2.2µF, unless otherwise noted. 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/ PARAMETER CONDITIONS MIN TYP MAX UNITS VBAT Operating Voltage ● 2.9 4.5 V IVBAT Operating Current RISET1 = RISET2 = 20k, EN1 = EN2 = High ICPO = 0mA, 1x Mode 1 mA ICPO = 0mA, 1.5x Mode 4 mA ICPO = 0mA, 2x Mode 6 mA VBAT Shutdown Current 4 µA LED 1-4 Current LED Current Ratio (ILED/ISET1/2)ILED = 25mA to 100mA ● 370 400 430 mA/mA LED Dropout Voltage Mode Switch Threshold, ILED = 100mA 330 mV Mode Switching Delay EN1 Only 2.5 ms LED Current Matching Any Two Outputs, ILED = 100mA 1 % Charge Pump (CPO) 1x Mode Output Voltage ICPO = 0mA VBAT V 1.5x Mode Output Voltage ICPO = 0mA 4.5 V 2x Mode Output Voltage ICPO = 0mA 5.05 V 1x Mode Output Impedance 0.5 Ω 1.5x Mode Output Impedance VBAT = 3.4V, VCPO ≤ 4.6V (Note 5) 2.8 Ω 2x Mode Output Impedance VBAT = 3.2V, VCPO ≤ 5.1V (Note 5) 3.2 Ω CLOCK Frequency ● 0.6 0.85 1.15 MHz |
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