Datasheet LTC3875 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | Dual, 2-Phase, Synchronous Controller with Low Value DCR Sensing and Temperature Compensation |
| 页数 / 页 | 46 / 2 — ABSOLUTE MAXIMUM RATINGS. (Note 1). PIN CONFIGURATION |
| 文件格式/大小 | PDF / 997 Kb |
| 文件语言 | 英语 |
ABSOLUTE MAXIMUM RATINGS. (Note 1). PIN CONFIGURATION
该数据表的模型线
文件文字版本
LTC3875
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (VIN) ... 40V to –0.3V MODE/PLLIN, ILIM, FREQ, IFAST, ENTMPB Topside Driver Voltages V + – OSNS(s) , VOSNS(s) Voltages ... INTVCC to –0.3V (BOOST1, BOOST2).. 46V to –0.3V ITH1, ITH2, PHASMD, TRSET1, TRSET2, Switch Voltage (SW1, SW2) .. 40V to –5V TCOMP1, TCOMP2, TAVG Voltages ...INTVCC to –0.3V INTVCC, RUN(s), PGOOD, EXTVCC INTVCC Peak Output Current ..100mA (BOOST-SW1), (BOOST2-SW2).. 6V to –0.3V Operating Junction Temperature Range SNSA+(s), SNSD+(s), (Notes 2, 3) .. –40°C to 125°C SNS–(s) Voltages ..INTVCC to –0.3V Storage Temperature Range .. –65°C to 125°C
PIN CONFIGURATION
TOP VIEW TOP VIEW + + + + – – SNSA1 SNS1 SNSD1 TCOMP1/ITEMP1 TRSET1 ILIM RUN1 MODE/PLLIN PHASMD CLKOUT SNSA1 SNS1 SNSD1 TCOMP1/ITEMP1 TRSET1 ILIM RUN1 MODE/PLLIN PHASMD CLKOUT 40 39 38 37 36 35 34 33 32 31 40 39 38 37 36 35 34 33 32 31 TK/SS1 1 30 SW1 TK/SS1 1 30 SW1 V + + OSNS1 2 29 TG1 VOSNS1 2 29 TG1 V – – OSNS1 3 28 BOOST1 VOSNS1 3 28 BOOST1 ITH1 4 27 BG1 ITH1 4 27 BG1 ITH2 5 41 26 VIN ITH2 5 41 26 VIN + SGND/PGND V + SGND/PGND OSNS2 6 25 INTVCC VOSNS2 6 25 INTVCC V – – OSNS2 7 24 EXTVCC VOSNS2 7 24 EXTVCC TK/SS2 8 23 BG2 TK/SS2 8 23 BG2 SNSA2+ 9 22 BOOST2 SNSA2+ 9 22 BOOST2 SNS2– 10 21 TG2 SNS2– 10 21 TG2 11 12 13 14 15 16 17 18 19 20 11 12 13 14 15 16 17 18 19 20 + + TAVG FREQ RUN2 IFAST SW2 TAVG FREQ RUN2 IFAST SW2 SNSD2 TRSET2 ENTMPB PGOOD SNSD2 TRSET2 ENTMPB PGOOD TCOMP2/ITEMP2 TCOMP2/ITEMP2 UJ PACKAGE UH PACKAGE 40-LEAD (6mm × 6mm) PLASTIC QFN 40-LEAD (5mm × 5mm) PLASTIC QFN TJMAX = 125°C, θJA = 33°C/W, θJC = 2.0°C/W TJMAX = 125°C, θJA = 44°C/W, θJC = 7.3°C/W EXPOSED PAD (PIN 41) IS SGND/PGND, MUST BE SOLDERED TO PCB EXPOSED PAD (PIN 41) IS SGND/PGND, MUST BE SOLDERED TO PCB 3875fb 2 For more information www.linear.com/LTC3875 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Related Parts
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (VIN) ... 40V to –0.3V MODE/PLLIN, ILIM, FREQ, IFAST, ENTMPB Topside Driver Voltages V + – OSNS(s) , VOSNS(s) Voltages ... INTVCC to –0.3V (BOOST1, BOOST2).. 46V to –0.3V ITH1, ITH2, PHASMD, TRSET1, TRSET2, Switch Voltage (SW1, SW2) .. 40V to –5V TCOMP1, TCOMP2, TAVG Voltages ...INTVCC to –0.3V INTVCC, RUN(s), PGOOD, EXTVCC INTVCC Peak Output Current ..100mA (BOOST-SW1), (BOOST2-SW2).. 6V to –0.3V Operating Junction Temperature Range SNSA+(s), SNSD+(s), (Notes 2, 3) .. –40°C to 125°C SNS–(s) Voltages ..INTVCC to –0.3V Storage Temperature Range .. –65°C to 125°C
PIN CONFIGURATION
TOP VIEW TOP VIEW + + + + – – SNSA1 SNS1 SNSD1 TCOMP1/ITEMP1 TRSET1 ILIM RUN1 MODE/PLLIN PHASMD CLKOUT SNSA1 SNS1 SNSD1 TCOMP1/ITEMP1 TRSET1 ILIM RUN1 MODE/PLLIN PHASMD CLKOUT 40 39 38 37 36 35 34 33 32 31 40 39 38 37 36 35 34 33 32 31 TK/SS1 1 30 SW1 TK/SS1 1 30 SW1 V + + OSNS1 2 29 TG1 VOSNS1 2 29 TG1 V – – OSNS1 3 28 BOOST1 VOSNS1 3 28 BOOST1 ITH1 4 27 BG1 ITH1 4 27 BG1 ITH2 5 41 26 VIN ITH2 5 41 26 VIN + SGND/PGND V + SGND/PGND OSNS2 6 25 INTVCC VOSNS2 6 25 INTVCC V – – OSNS2 7 24 EXTVCC VOSNS2 7 24 EXTVCC TK/SS2 8 23 BG2 TK/SS2 8 23 BG2 SNSA2+ 9 22 BOOST2 SNSA2+ 9 22 BOOST2 SNS2– 10 21 TG2 SNS2– 10 21 TG2 11 12 13 14 15 16 17 18 19 20 11 12 13 14 15 16 17 18 19 20 + + TAVG FREQ RUN2 IFAST SW2 TAVG FREQ RUN2 IFAST SW2 SNSD2 TRSET2 ENTMPB PGOOD SNSD2 TRSET2 ENTMPB PGOOD TCOMP2/ITEMP2 TCOMP2/ITEMP2 UJ PACKAGE UH PACKAGE 40-LEAD (6mm × 6mm) PLASTIC QFN 40-LEAD (5mm × 5mm) PLASTIC QFN TJMAX = 125°C, θJA = 33°C/W, θJC = 2.0°C/W TJMAX = 125°C, θJA = 44°C/W, θJC = 7.3°C/W EXPOSED PAD (PIN 41) IS SGND/PGND, MUST BE SOLDERED TO PCB EXPOSED PAD (PIN 41) IS SGND/PGND, MUST BE SOLDERED TO PCB 3875fb 2 For more information www.linear.com/LTC3875 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Related Parts