Linear Technology Analog Devices LT8708, Техническое описание

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LT8708
3
Rev 0
For more information www.analog.com
PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS
V
CSP
– V
CSN
, V
CSPIN
– V
CSNIN
,
V
CSPOUT
– V
CSNOUT
............................... –0.3V to 0.3V
CSP, CSN Voltage ......................................... –0.3V to 3V
V
C
Voltage (Note 2) .................................. –0.3V to 2.2V
RT, FBOUT, SS Voltage ................................ –0.3V to 5V
IMON_INP, IMON_INN, IMON_OP, IMON_ON,
ICP, ICN Voltage ....................................... –0.3V to 5V
SYNC Voltage ............................................ –0.3V to 5.5V
INTV
CC
, GATEV
CC
Voltage ............................ –0.3V to 7V
V
BOOST1
– V
SW1
, V
BOOST2
– V
SW2
................ –0.3V to 7V
SWEN, RVSOFF Voltage ............................... –0.3V to 7V
SWEN Current .......................................................0.5mA
RVSOFF Current .......................................................1mA
FBIN, SHDN Voltage .................................. –0.3V to 30V
VINHIMON Voltage ..................................... –0.3V to 30V
VOUTLOMON Voltage .................................. –0.3V to 5V
DIR, MODE Voltage ...................................... –0.3V to 5V
CSNIN, CSPIN, CSPOUT, CSNOUT Voltage –0.3V to 80V
V
INCHIP
, EXTV
CC
Voltage ............................ –0.3V to 80V
SW1, SW2 Voltage .....................................81V (Note 6)
BOOST1, BOOST2 Voltage ......................... –0.3V to 87V
BG1, BG2, TG1, TG2 .......................................... (Note 5)
LDO33, CLKOUT ............................................... (Note 8)
Operating Junction Temperature Range
LT8708E (Notes 3, 8) ........................ –40°C to 125°C
LT8708I (Notes 3, 8) ......................... –40°C to 125°C
LT8708H (Notes 3, 8) ....................... –40°C to 150°C
Storage Temperature Range .................. –65°C to 150°C
(Note 1)
15 16 17 18
TOP VIEW
41
GND
UHG PACKAGE
40-LEAD (5mm
×
8mm) PLASTIC QFN
T
JMAX
= 150°C, θ
JA
= 36°C/W, θ
JC
= 3.8°C/W
EXPOSED PAD (PIN 41) IS GND, MUST BE SOLDERED TO PCB
19 20 21
40 39 38 37 36 35 34
26
27
28
29
30
31
32
33
8
7
6
5
4
3
2
1 CLKOUT
SS
SHDN
CSN
CSP
ICN
DIR
FBIN
FBOUT
V
C
IMON_INP
IMON_INN
RT
SYNC
CSPIN
CSNIN
CSNOUT
CSPOUT
EXTV
CC
ICP
VINHIMON
VOUTLOMON
RVSOFF
BOOST1
TG1
SW1
LDO33 IMON_ON IMON_OP MODE SWEN INT
V
CC
V
INCHIP
GND
BG1
GA
TEV
CC
BG2
BOOST2
TG2
SW2
25
24
23
22
9
10
11
12
13
14
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT8708EUHG#PBF LT8708EUHG#TRPBF 8708 40-Lead (5mm × 8mm) Plastic QFN –40°C to 125°C
LT8708IUHG#PBF LT8708IUHG#TRPBF 8708 40-Lead (5mm × 8mm) Plastic QFN –40°C to 125°C
LT8708HUHG#PBF LT8708HUHG#TRPBF 8708 40-Lead (5mm × 8mm) Plastic QFN –40°C to 150°C
Consult ADI Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Tape and reel specifications . Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.