Datasheet LTC3838-2 (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | Dual, Fast, Accurate Step-Down DC/DC Controller with External Reference Voltage and Dual Differential Output Sensing |
| Pages / Page | 56 / 2 — absoluTe MaxiMuM raTings. pin conFiguraTion. (Note 1). orDer inForMaTion. … |
| File Format / Size | PDF / 968 Kb |
| Document Language | English |
absoluTe MaxiMuM raTings. pin conFiguraTion. (Note 1). orDer inForMaTion. (http://www.linear.com/product/LTC3838-2#orderinfo)
Model Line for this Datasheet
Text Version of Document
LTC3838-2
absoluTe MaxiMuM raTings pin conFiguraTion (Note 1)
VIN Voltage ... –0.3V to 40V TOP VIEW + – BOOST1, BOOST2 Voltages ... –0.3V to 46V – SW1, SW2 Voltages .. –5V to 40V V DFB2 SENSE2 SENSE2 DTR2 RUN2 PGOOD2 BOOST2 INTV 38 37 36 35 34 33 32 CC, DRVCC1, DRVCC2, EXTVCC, PGOOD1, + PGOOD2, RUN1, RUN2, (BOOST1-SW1), VDFB2 1 31 TG2 (BOOST2-SW2), MODE/PLLIN Voltages .. –0.3V to 6V EXTVREF2 2 30 SW2 ITH2 3 29 BG2 SENSE1+, SENSE2+,SENSE1–, SENSE2– TRACK/SS2 4 28 DRVCC2 Voltages ... –0.6V to 6V MODE/PLLIN 5 27 EXTVCC V + OUTSENSE1 , Voltage .. –0.6V to (INTVCC + 0.3V) CLKOUT 6 39 26 INTVCC V – + SGND PGND OUTSENSE1 , Voltage ..–0.6V to VOUTSENSE1 7 25 PGND TRACK/SS1, TRACK/SS2 Voltages .. –0.3V to 5V RT 8 24 VIN DTR1, DTR2, PHASMD, RT, EXTV + – PHASMD 9 23 DRVCC1 REF2, VDFB2 , VDFB2 , ITH1 10 22 BG1 ITH1, ITH2 Voltages .. –0.3V to (INTVCC + 0.3V) TRACK/SS1 11 21 SW1 Operating Junction Temperature Range VOUTSENSE1+ 12 20 TG1 (Notes 2, 3, 4) .. –40°C to 125°C 13 14 15 16 17 18 19 Storage Temperature Range .. –65°C to 150°C – + – DTR1 RUN1 SENSE1 SENSE1 PGOOD1 BOOST1 V OUTSENSE1 UHF PACKAGE 38-LEAD (5mm × 7mm) PLASTIC QFN TJMAX = 125°C, θJA = 34°C/W EXPOSED PAD (PIN 39) IS PGND, MUST BE SOLDERED TO PCB
orDer inForMaTion (http://www.linear.com/product/LTC3838-2#orderinfo) LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3838EUHF-2#PBF LTC3838EUHF-2#TRPBF 38382 38-Lead (5mm × 7mm) Plastic QFN –40°C to 125°C LTC3838IUHF-2#PBF LTC3838IUHF-2#TRPBF 38382 38-Lead (5mm × 7mm) Plastic QFN –40°C to 125°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.
Table 1. Comparison of LTC3838 Options PART NUMBER DESCRIPTION
LTC3838 ±0.67% Differential Output Regulation on Channel 1 ±1% Output Regulation on Channel 2 Separate-Per-Channel Continuous 30mV to 100mV Current Sense Range Controls LTC3838-1 ±0.67% on Channel 1 and ±0.75% on Channel 2, Differential Output Regulation on Both Channel 1 and 2 Single-Pin 30mV/60mV Current Sense Range Control, Improved Current Limit Accuracy Than LTC3838 LTC3838-2 ±0.67% Differential Output Regulation with Internal Reference on Channel 1 ±4mV Differential Output Regulation with External Reference Voltage on Channel 2 Fixed 30mV Current Sense Range, Improved Current Limit Accuracy Than LTC3838 38382fa 2 For more information www.linear.com/3838-2 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
absoluTe MaxiMuM raTings pin conFiguraTion (Note 1)
VIN Voltage ... –0.3V to 40V TOP VIEW + – BOOST1, BOOST2 Voltages ... –0.3V to 46V – SW1, SW2 Voltages .. –5V to 40V V DFB2 SENSE2 SENSE2 DTR2 RUN2 PGOOD2 BOOST2 INTV 38 37 36 35 34 33 32 CC, DRVCC1, DRVCC2, EXTVCC, PGOOD1, + PGOOD2, RUN1, RUN2, (BOOST1-SW1), VDFB2 1 31 TG2 (BOOST2-SW2), MODE/PLLIN Voltages .. –0.3V to 6V EXTVREF2 2 30 SW2 ITH2 3 29 BG2 SENSE1+, SENSE2+,SENSE1–, SENSE2– TRACK/SS2 4 28 DRVCC2 Voltages ... –0.6V to 6V MODE/PLLIN 5 27 EXTVCC V + OUTSENSE1 , Voltage .. –0.6V to (INTVCC + 0.3V) CLKOUT 6 39 26 INTVCC V – + SGND PGND OUTSENSE1 , Voltage ..–0.6V to VOUTSENSE1 7 25 PGND TRACK/SS1, TRACK/SS2 Voltages .. –0.3V to 5V RT 8 24 VIN DTR1, DTR2, PHASMD, RT, EXTV + – PHASMD 9 23 DRVCC1 REF2, VDFB2 , VDFB2 , ITH1 10 22 BG1 ITH1, ITH2 Voltages .. –0.3V to (INTVCC + 0.3V) TRACK/SS1 11 21 SW1 Operating Junction Temperature Range VOUTSENSE1+ 12 20 TG1 (Notes 2, 3, 4) .. –40°C to 125°C 13 14 15 16 17 18 19 Storage Temperature Range .. –65°C to 150°C – + – DTR1 RUN1 SENSE1 SENSE1 PGOOD1 BOOST1 V OUTSENSE1 UHF PACKAGE 38-LEAD (5mm × 7mm) PLASTIC QFN TJMAX = 125°C, θJA = 34°C/W EXPOSED PAD (PIN 39) IS PGND, MUST BE SOLDERED TO PCB
orDer inForMaTion (http://www.linear.com/product/LTC3838-2#orderinfo) LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3838EUHF-2#PBF LTC3838EUHF-2#TRPBF 38382 38-Lead (5mm × 7mm) Plastic QFN –40°C to 125°C LTC3838IUHF-2#PBF LTC3838IUHF-2#TRPBF 38382 38-Lead (5mm × 7mm) Plastic QFN –40°C to 125°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.
Table 1. Comparison of LTC3838 Options PART NUMBER DESCRIPTION
LTC3838 ±0.67% Differential Output Regulation on Channel 1 ±1% Output Regulation on Channel 2 Separate-Per-Channel Continuous 30mV to 100mV Current Sense Range Controls LTC3838-1 ±0.67% on Channel 1 and ±0.75% on Channel 2, Differential Output Regulation on Both Channel 1 and 2 Single-Pin 30mV/60mV Current Sense Range Control, Improved Current Limit Accuracy Than LTC3838 LTC3838-2 ±0.67% Differential Output Regulation with Internal Reference on Channel 1 ±4mV Differential Output Regulation with External Reference Voltage on Channel 2 Fixed 30mV Current Sense Range, Improved Current Limit Accuracy Than LTC3838 38382fa 2 For more information www.linear.com/3838-2 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
