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LTC3855 bảng dữ liệu(PDF) 2 Page - Linear Technology

tên linh kiện LTC3855
Giải thích chi tiết về linh kiện  Dual, Multiphase Synchronous DC/DC Controller with Differential Remote Sense
PDF  44 Pages
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nhà sản xuất  LINER [Linear Technology]
Trang chủ  http://www.linear.com
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LTC3855 bảng dữ liệu(HTML) 2 Page - Linear Technology

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LTC3855

3855f
absoluTe MaxiMuM raTings
(Note 1)
pin conFiguraTion
Input Supply Voltage (VIN).........................–0.3V to 40V
Top Side Driver Voltages
BOOST1, BOOST2..................................–0.3V to 46V
Switch Voltage (SW1, SW2) .........................–5V to 40V
INTVCC, RUN1, RUN2, PGOOD(s), EXTVCC,
(BOOST1-SW1), (BOOST2-SW2).............–0.3V to 6V
SENSE1+, SENSE2+, SENSE1–,
SENSE2– Voltages .................................–0.3V to 13V
MODE/PLLIN, ILIM1, ILIM2, TK/SS1, TK/SS2, FREQ,
DIFFOUT, PHASMD Voltages.............–0.3V to INTVCC
DIFFP, DIFFN..........................................–0.3V to INTVCC
ITEMP1, ITEMP2 Voltages ....................–0.3V to INTVCC
ITH1, ITH2, VFB1, VFB2 Voltages..............–0.3V to INTVCC
INTVCC Peak Output Current (Note 8) ..................100mA
Operating Junction Temperature Range (Notes 2, 3)
LTC3855.............................................–40°C to 125°C
Storage Temperature Range...................–65°C to 125°C
Lead Temperature (Soldering, 10 sec)
(FE Package)..................................................... 300°C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
TOP VIEW
FE PACKAGE
38-LEAD PLASTIC SSOP
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
ITEMP2
ITEMP1
RUN1
SENSE1+
SENSE1–
TK/SS1
ITH1
VFB1
VFB2
ITH2
TK/SS2
SENSE2+
SENSE2–
DIFFP
DIFFN
DIFFOUT
RUN2
ILIM1
ILIM2
FREQ
MODE/PLLIN
PHASMD
CLKOUT
SW1
TG1
BOOST1
PGND1
BG1
VIN
INTVCC
EXTVCC
BG2
PGND2
BOOST2
TG2
SW2
PGOOD2
PGOOD1
39
SGND
TJMAX = 125°C, θJA = 25°C/W
EXPOSED PAD (PIN 39) IS SGND, MUST BE SOLDERED TO PCB
39
40
38 37 36 35 34 33 32 31
11
20
12 13 14 15
TOP VIEW
41
SGND
UJ PACKAGE
40-LEAD (6mm 6mm) PLASTIC QFN
16 17 18 19
22
23
24
25
26
27
28
29
9
8
7
6
5
4
3
2
TK/SS1
ITH1
VFB1
SGND
VFB2
ITH2
TK/SS2
SENSE2+
SENSE2–
DIFFP
TG1
BOOST1
PGND1
BG1
VIN
INTVCC
EXTVCC
BG2
PGND2
BOOST2
21
30
10
1
TJMAX = 125°C, θJA = 33°C/W
EXPOSED PAD (PIN 41) IS SGND, MUST BE SOLDERED TO PCB



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