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LQH2MCN150K02 Datasheet(PDF) 2 Page - Linear Technology |
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LQH2MCN150K02 Datasheet(HTML) 2 Page - Linear Technology |
2 / 24 page LT3498 2 3498f PACKAGE/ORDER INFORMATION ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS Input Voltage (VIN)....................................................12V CTRL1 and CTRL2 Voltage........................................12V FB2 Voltage..............................................................2.5V VOUT2 Voltage ...........................................................32V SW1 and SW2 Voltage ..............................................32V CAP1 and CAP2 Voltage............................................32V LED1 Voltage ............................................................32V Operating Junction Temperature Range ...– 40°C to 85°C Maximum Junction Temperature .......................... 125°C Storage Temperature Range...................– 65°C to 150°C (Notes 1, 2) PARAMETER CONDITIONS MIN TYP MAX UNITS Minimum Operating Voltage 2.5 V Maximum Operating Voltage 12 V Supply Current (LED Off, OLED Off) VIN = 3V, VCTRL1 = 0V, VCTRL2 = 0V 810 µA Supply Current (LED On, OLED Off) VIN = 3V, VCTRL1 = 3V, VCTRL2 = 0V, VCAP1 = 24V, VLED1 = 23V 1.6 2 mA Supply Current (LED Off, OLED On) VIN = 3V, VCTRL1 = 0V, VCTRL2 = 3V, VFB2 = 3V 230 280 µA Supply Current (LED On, OLED On) VIN = 3V, VCTRL1 = 3V, VCTRL2 = 3V, VCAP1 = 24V, VLED1 = 23V 1.65 2.05 mA VCTRL1 for Full LED Current VCTRL2 for Full OLED Brightness ● 1.5 V VCTRL1 or VCTRL2 to Turn On IC ● 125 mV VCTRL1 and VCTRL2 to Shut Down IC ● 75 mV CTRL1, CTRL2 Pin Bias Current 100 nA LED Driver LED Current Sense Voltage (VCAP – VLED)VCAP1 = 24V, ISW = 200mA ● 190 200 210 mV CAP1, LED1 Pin Bias Current VCAP1 = 16V, VLED1 = 16V 20 30 µA VCAP1, VLED1 Common Mode Minimum Voltage 2.5 V Switching Frequency ● 1.8 2.3 2.8 MHz Maximum Duty Cycle 88 90 % Switch Current Limit ● 300 425 mA Switch VCESAT ISW = 200mA 250 mV TOP VIEW 13 DDB PACKAGE 12-LEAD (3mm × 2mm) PLASTIC DFN LED1 CTRL1 GND1 GND2 CTRL2 FB2 CAP1 SW1 VIN SW2 CAP2 VOUT2 8 7 10 9 11 12 5 6 4 2 3 1 TJMAX = 125°C, θJA = 160°C/W EXPOSED PAD (PIN 13) IS GND, MUST BE SOLDERED TO PCB ORDER PART NUMBER DDB PART MARKING LT3498EDDB LCQF 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/ Consult LTC Marketing for parts specified with wider operating temperature ranges. The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C, VIN = 3V, VCTRL1 = VCTRL2 = 3V. |
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