LT8302HS8E-3-WPBF Просмотр технического описания (PDF) - Analog Devices
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LT8302HS8E-3-WPBF
Analog Devices
LT8302HS8E-3-WPBF Datasheet PDF : 26 Pages
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LT8302/LT8302-3
TYPICAL APPLICATIONS
VIN
8V TO 32V
8V to 32VIN/5VOUT Isolated Flyback Converter with LT8309
C1
10µF
R1
806k
R2
232k
C2
1µF
VIN
EN/UVLO SW
LT8302/LT8302-3
GND
RFB
INTVCC
RREF
TC
T1
C3
3:1
Z1
470pF
•
D1
R3 9µH
39Ω •
1µH
D2
R7
5Ω
R4
154k
R6
R5
OPEN 10k
R8
2.1k
VCC
DRAIN
LT8309
M1
GATE INTVCC
GND
D1: DIODES DFLS1100
D2: CENTRAL CMMSH1-60
M1: INFINEON BSC059N04LS
T1: WURTH 750311564
Z1: CENTRAL CMZ5934B
C4
10µF
VOUT+
5V/2.0A (VIN = 12V)
5V/2.9A (VIN = 24V)
C4
220µF
C5
4.7µF
VOUT–
8302 TA07
Efficiency vs Load Current
95
90
85
80
75
70
65
0
0.5 1.0 1.5 2.0 2.5 3.0
LOAD CURRENT (A)
8302 TA07b
–4V to –42VIN/12VOUT Buck-Boost Converter
VIN
–4V TO –42V
L1
12µH
VIN
SW
EN/UVLO
RFB
C1
10µF
LT8302/LT8302-3
INTVCC
C2
1µF
GND
RREF
D1
R4
118k
Z1
VOUT
12V/0.45A (VIN = –5V)
12V/0.8A (VIN = –12V)
C3 12V/1.1A (VIN = –24V)
47µF 12V/1.3A (VIN = –42V)
R5
10k
8302 TA08a
D1: DIODES PMEG6030EP
L1: WURTH 744770112
Z1: CENTRAL CMHZ5243B
–18V to –42VIN/–12VOUT Negative Buck Converter
VIN
–18V TO –42V
C1
10µF
R1
806k
VIN
EN/UVLO
SW
R2
232k LT8302/LT8302-3
EN/UVLO
RFB
INTVCC
C2
1µF
RREF
C3
47µF
D1
L1
12µH
Z1 VOUT
–12V
1.8A
R4
118k
R5
10k
8302 TA09a
D1: DIODES PMEG6030EP
L1: WURTH 744770112
Z1: CENTRAL CMHZ5243B
Efficiency vs Load Current
95
90
85
80
75
70
65
0
VIN = –5V
VIN = –12V
VIN = –24V
VIN = –42V
200 400 600 800 1000 1200 1400
LOAD CURRENT (mA)
8302 TA08b
Efficiency vs Load Current
100
95
90
85
80
75
70
0
VIN = –18V
VIN = –24V
VIN = –42V
500
1000
1500
LOAD CURRENT (mA)
2000
8302 TA09b
For more information www.analog.com
Rev. G
23
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