LTC3789 LINER [Linear Technology], LTC3789 Datasheet - Page 40

• Manufacturer Part Number: LTC3789
• Description: High Voltage High Current Controller for Battery Charging and Power Management
• Manufacturer: LINER [Linear Technology]

LTC4000
Typical applicaTion
relaTeD parTs
PART NUMBER
LTC3789
LT3845
LT3650
LT3651
LT3652/LT3652HV
LTC4009
LTC4012
LT3741
40
12.5A MAX
6V TO 36V
V
IN
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
Q2: SiR422DP
Q3: SiR496DP
Q4: SiR4840BDY
Q5: SiR496DP
365k
100k
4m
DESCRIPTION
High Efficiency, Synchronous, 4 Switch Buck-Boost Controller
High Voltage Synchronous Current Mode Step-Down Controller with
Adjustable Operating Frequency
High Voltage 2A Monolithic Li-Ion Battery Charger
High Voltage 4A Monolithic Li-Ion Battery Charger
Power Tracking 2A Battery Chargers
High Efficiency, Multi-Chemistry Battery Charger
High Efficiency, Multi-Chemistry Battery Charger with PowerPath Control Similar to LTC4009 Adding PowerPath Control
High Power, Constant Current, Constant Voltage, Step-Down Controller
270µF
3.3µF
×5
Figure 28. 6V to 36V
1µF
BZX84C3VO
●
FAX: [phone]
DFLS160
1µF
10nF
INTV
0.22µF
CC
121k
10nF
with 2.9h Timer Termination and 0.45A Trickle Charge Current
5.6
BOOST1
V
V
FREQ
ILIM
CLN
IN
VM
ENC
CHRG
FLT
IIMON
IBMON
TG1
IN
INSNS
RUN
RST
Q2
390pF
IN
●
SW1
ITH
ITH
to 14.4V at 4.5A Buck Boost Converter 4-Cell LiFePO
www.linear.com
14.7k
SS
BG1
Q4
1.24k
0.01µF
CC
SENSE
B240A
SGND
LTC3789
100nF
0.01
1.24k
+
IHLP6767GZ
ER4R7M01
SENSE
4.7µH
IL
PGND1
3.6
–
CL
BG2
1800pF
Q5
18.2k
SW2
MODE/PLLIN
TMR
I
I
V
BOOST2
OSENSE
OSENSE
PGOOD
EXTV
OUTSNS
INTV
TG2
0.1µF
Q3
V
LTC4000
CC
CC
FB
+
–
CX
0.22µF
22.1k
B240A
100k
8.06k
154k
GND BIAS
DFLS160
BZT52C5V6
10µF
COMMENTS
Improved LTC3780 with More Features
For Medium/High Power, High Efficiency Supplies
3mm × 3mm DFN-12 and MSOP-12 Packages
4A Synchronous Version of LT3650 Family
Multi-Chemistry, Onboard Termination
Low Cost Version of LTC4008, 4mm × 4mm QFN-20
Thermally Enhanced 4mm × 4mm QFN and 20-Pin TSSOP
0.01
1µF
10µF
330µF
×2
22µF
4
×2
Battery Charger
10k
IID
 LINEAR TECHNOLOGY CORPORATION 2011
Si7135DP
IGATE
BGATE
CSP
4000 F28
CSN
OFB
FBG
NTC
BAT
BFB
LT 0411 • PRINTED IN USA
10nF
309k
1.37M
R
26.7k
118k
NTC
NTHS0603
N02N1002J
10m
Si7135DP
4-CELL
LiFePO
BATTERY
PACK
V
15V, 5A
OUT
4000f
4