Datasheet LTC7812 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | Low IQ, 38V Synchronous Boost+Buck Controller |
| 页数 / 页 | 44 / 2 — ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION … |
| 文件格式/大小 | PDF / 2.3 Mb |
| 文件语言 | 英语 |
ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION http://www.linear.com/product/LTC7812#orderinfo
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LTC7812
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
Bias Input Supply Voltage (VBIAS) .. –0.3V to 40V Buck Top Side Driver Voltage (BOOST1) .. –0.3V to 46V TOP VIEW Boost Top Side Driver Voltage (BOOST2) .. –0.3V to 76V Buck Switch Voltage (SW1) ... –5V to 40V V CC BOOST1 BG1 SW2 TG2 BOOST2 BG2 V BIAS EXT Boost Switch Voltage (SW2) .. –5V to 70V 32 31 30 29 28 27 26 25 INTVCC, (BOOST1–SW1), SW1 1 24 INTVCC (BOOST2–SW2) .. –0.3V to 6V TG1 2 23 NC RUN1, RUN2 ... –0.3V to 8V PGOOD1 3 22 OV2 Maximum Current Sourced Into Pin TRACK/SS1 4 SGND 33 21 ITH1 5 PGND 20 SGND from Source >8V ..100µA VFB1 6 19 RUN2 BG1, BG2, TG1, TG2 ... (Note 8) SENSE1+ 7 18 SGND SENSE1+, SENSE1– Voltages .. –0.3V to 28V SENSE1– 8 17 RUN1 SENSE2+, SENSE2– Voltages ... –0.3V to 40V 9 10 11 12 13 14 15 16 FREQ Voltage ..–0.3V to INTV – + – CC SS2 V FB2 I TH2 EXTV FREQ SGND CC .. –0.3V to 14V SENSE2 SENSE2 ITH1, ITH2, VFB1, VFB2, Voltages .. –0.3V to 6V PLLIN/MODE UH PACKAGE PLLIN/MODE, PGOOD1, OV2 Voltages .. –0.3V to 6V 32-LEAD (5mm × 5mm) PLASTIC QFN TRACK/SS1, SS2 Voltages .. –0.3V to 6V TJMAX = 150°C, qJA = 44°C/W EXPOSED PAD (PIN 33) IS PGND, MUST BE SOLDERED TO PCB Operating Junction Temperature Range (Notes 2, 3) LTC7812E, LTC7812I .. –40°C to 125°C LTC7812H .. –40°C to 150°C Storage Temperature Range .. –65°C to 150°C
ORDER INFORMATION http://www.linear.com/product/LTC7812#orderinfo LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC7812EUH#PBF LTC7812EUH#TRPBF 7812 32-Lead (5mm × 5mm) Plastic QFN –40°C to 125°C LTC7812IUH#PBF LTC7812IUH#TRPBF 7812 32-Lead (5mm × 5mm) Plastic QFN –40°C to 125°C LTC7812HUH#PBF LTC7812HUH#TRPBF 7812 32-Lead (5mm × 5mm) Plastic QFN –40°C to 150°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. 7812fc 2 For more information www.linear.com/LTC7812 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Typical Application Related Parts
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
Bias Input Supply Voltage (VBIAS) .. –0.3V to 40V Buck Top Side Driver Voltage (BOOST1) .. –0.3V to 46V TOP VIEW Boost Top Side Driver Voltage (BOOST2) .. –0.3V to 76V Buck Switch Voltage (SW1) ... –5V to 40V V CC BOOST1 BG1 SW2 TG2 BOOST2 BG2 V BIAS EXT Boost Switch Voltage (SW2) .. –5V to 70V 32 31 30 29 28 27 26 25 INTVCC, (BOOST1–SW1), SW1 1 24 INTVCC (BOOST2–SW2) .. –0.3V to 6V TG1 2 23 NC RUN1, RUN2 ... –0.3V to 8V PGOOD1 3 22 OV2 Maximum Current Sourced Into Pin TRACK/SS1 4 SGND 33 21 ITH1 5 PGND 20 SGND from Source >8V ..100µA VFB1 6 19 RUN2 BG1, BG2, TG1, TG2 ... (Note 8) SENSE1+ 7 18 SGND SENSE1+, SENSE1– Voltages .. –0.3V to 28V SENSE1– 8 17 RUN1 SENSE2+, SENSE2– Voltages ... –0.3V to 40V 9 10 11 12 13 14 15 16 FREQ Voltage ..–0.3V to INTV – + – CC SS2 V FB2 I TH2 EXTV FREQ SGND CC .. –0.3V to 14V SENSE2 SENSE2 ITH1, ITH2, VFB1, VFB2, Voltages .. –0.3V to 6V PLLIN/MODE UH PACKAGE PLLIN/MODE, PGOOD1, OV2 Voltages .. –0.3V to 6V 32-LEAD (5mm × 5mm) PLASTIC QFN TRACK/SS1, SS2 Voltages .. –0.3V to 6V TJMAX = 150°C, qJA = 44°C/W EXPOSED PAD (PIN 33) IS PGND, MUST BE SOLDERED TO PCB Operating Junction Temperature Range (Notes 2, 3) LTC7812E, LTC7812I .. –40°C to 125°C LTC7812H .. –40°C to 150°C Storage Temperature Range .. –65°C to 150°C
ORDER INFORMATION http://www.linear.com/product/LTC7812#orderinfo LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC7812EUH#PBF LTC7812EUH#TRPBF 7812 32-Lead (5mm × 5mm) Plastic QFN –40°C to 125°C LTC7812IUH#PBF LTC7812IUH#TRPBF 7812 32-Lead (5mm × 5mm) Plastic QFN –40°C to 125°C LTC7812HUH#PBF LTC7812HUH#TRPBF 7812 32-Lead (5mm × 5mm) Plastic QFN –40°C to 150°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. 7812fc 2 For more information www.linear.com/LTC7812 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Typical Application Related Parts