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LTC1771 数据表(PDF) 2 Page - Linear Technology |
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LTC1771 数据表(HTML) 2 Page - Linear Technology |
2 / 16 page 2 LTC1771 The q denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C. VIN = 10V, VRUN = open unless otherwise specified. LTC1771EMS8 TJMAX = 125°C, θJA = 150°C/ W ORDER PART NUMBER Input Supply Voltage (VIN)........................ –0.3V to 20V Peak Driver Output Current < 10 µs (PGATE) ............. 1A RUN/SS Voltage ........................... – 0.3V to (VIN + 0.3V) MODE Voltage .......................................... – 0.3V to 20V ITH, VFB Voltage .......................................... – 0.3V to 5V SENSE Voltage (VIN > 12V)...(VIN – 12V) to (VIN + 0.3V) SENSE Voltage (VIN ≤ 12V) .......... – 0.3V to (VIN + 0.3V) (Note 1) Consult factory for Military grade parts. Junction Temperature (Note 2) ............................ 125 °C Operating Temperature Range (Note 3) LTC1771E ......................................... – 40 °C to 85°C LTC1771I ......................................... – 40 °C to 85°C Storage Temperature Range ................. – 65 °C to 150°C Lead Temperature (Soldering, 10 sec).................. 300 °C LTC1771ES8 LTC1771IS8 ORDER PART NUMBER RUN/SS ITH VFB GND 1 2 3 4 8 7 6 5 MODE SENSE VIN PGATE TOP VIEW MS8 PACKAGE 8-LEAD PLASTIC MSOP MS8 PART MARKING TOP VIEW MODE SENSE VIN PGATE RUN/SS ITH VFB GND S8 PACKAGE 8-LEAD PLASTIC SO 1 2 3 4 8 7 6 5 TJMAX = 125°C, θJA = 110°C/ W S8 PART MARKING 1771 1771I SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VFB Feedback Voltage (Note 5) q 1.205 1.230 1.255 V IFB Feedback Current (Note 5) q 110 nA ISUPPLY No-Load Supply Current VIN = 10V, ILOAD = 0 (Note 6) 10 µA ∆VLINEREG Reference Voltage Line Regulation VIN = 5V to 15V (Note 5) q 0.003 0.03 %/V ∆VLOADREG Output Voltage Load Regulation ITH = 0.5V to 2V, Burst Disabled (Note 5) q 0.25 1 % IQ Input DC Supply Current (Note 4) Active Mode (PGATE = 0V) VIN = 2.8V to 18V 150 235 µA Sleep Mode (Note 6) VIN = 2.8V to 18V, VFB = 1.5V 9 15 µA Shutdown VIN = 2.8V to 18V, VRUN = 0V 2 6 µA Short Circuit VIN = 2.8V to 18V, VFB = 0V 175 275 µA ∆VSENSE(MAX) Maximum Current Sense Threshold VFB = VREF – 20mV q 110 140 180 mV ∆VSENSE(MIN) Minimum Current Sense Threshold VFB = VREF + 10mV, Burst Disabled – 25 mV ∆VSENSE(SLEEP) Sleep Current Sense Threshold ITH = 1V 50 mV tOFF Switch Off Time VFB at Regulated Value 3.5 µs VFB = 0V 70 µs VMODE Mode Pin Threshold VMODE Rising q 0.5 1.3 2 V LTKD ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO ELECTRICAL CHARACTERISTICS |
类似零件编号 - LTC1771 |
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类似说明 - LTC1771 |
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