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LT3759 Datasheet(PDF) 42 Page - Linear Technology

Part # LT3759
Description  Synchronous SEPIC/ Inverting/Boost Controller with Output Current Control
PDF  44 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3759 Datasheet(HTML) 42 Page - Linear Technology

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LT8710
42
8710f
For more information www.linear.com/LT8710
300kHz, 3A Sealed Lead Acid Battery Charger with an Optional Negative Temp-Co Bulk and Float Battery Voltage
Efficiency vs Input Voltage
Bulk and Float Output Voltage
with **Optional Components
Typical applicaTion
TEMPERATURE (°C)
–40
16.0
15.0
15.5
14.5
14.0
13.5
13.0
12.5
12.0
–20
40
60
80
8710 TA06b
0
20
BULK
FLOAT
INPUT VOLTAGE (V)
5
95
90
85
80
75
10
25
30
8710 TA06c
15
20
VOUT = 12V
IOUT = 3A
L1, L2: WÜRTH 3.5µH WE-CFWI 74485540350
MN: FAIRCHILD FDMS86500L
MP1: VISHAY SUD50P06-15
RSENSE1: 1.5m 2010
RSENSE2: 16m 2512
CIN1: 10µF, 50V, 1210, X7S
COUT: 22µF, 25V, 1812, X7R
C1: 10µF, 50V, 1210, X7S
MP2: VISHAY Si2343CDS
RNTC: MURATA NCP18XH103F03RB
SEE THE BATTERY CHARGING AND C/10 SECTION
IN APPLICATIONS INFORMATION FOR MORE
INFORMATION ON BATTERY CHARGING
* MP2 DISCONNECTS FBX PIN CURRENT
DRAW FROM BATTERY WHEN LT8710 IS IN
SHUTDOWN
**PLACE 316k AND 100nF AS CLOSE
TO THE FBX PIN AS POSSIBLE. ALSO,
CONNECT ALL GROUNDS OF THESE
COMPONENTS TO THE LT8710 GROUND
IMON
SS
GND
CSP
TG
CSN
BG
LT8710
8710 TA06a
MODE
INTVCC
RT
SYNC
VIN
EN/FBIN
BIAS
INTVEE
FBX
FLAG
VC
ISP
ISN
VOUT
14.7V BULK
13.77V FLOAT
3A CHARGE
VIN
5V TO
30V
13.3k
L1
3.5µH
RSENSE1
MN
CIN2
100µF
2.2µF
COUT
22µF
×4
10k
CIN1
10µF
×4
118k
1.5m
C1
10µF ×2
150k
*OPTIONAL
MP2
RNTC
10k
INTVCC
196k
316k
6.19k
2.2µF
SEALED
LEAD ACID
BATTERY
47nF
220nF
6.8nF
100nF
100pF
+
L2
3.5µH
•
MP1
+
2.37k
220nF
**OPTIONAL
RSENSE2
16m
5.1
5.1
4.7nF 4.7nF



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