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LTC3300IUK-2#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42
LTC3300-2
1
33002f
For more information www.linear.com/LTC3300-2
APPLICATIONS
TYPICAL APPLICATION
FEATURES DESCRIPTION
Addressable High Efficiency
Bidirectional Multicell
Battery Balancer
The LTC
®
3300-2 is a fault-protected controller IC for
transformer-based bidirectional active balancing of multi-
cell battery stacks. All associated gate drive circuitry,
precision current sensing, fault detection circuitry and a
robust serial interface with built-in watchdog timer are
integrated.
Each LTC3300-2 can balance up to 6 series-connected
battery cells with an input common mode voltage up to
36V. Charge from any selected cell can be transferred at
high efficiency to or from 12 or more adjacent cells. Each
LTC3300-2 has an individually addressable serial interface,
allowing up to 32 LTC3300-2 devices to interface to one
control processor.
Fault protection features include readback capability, cy
-
clic redundancy
check (CRC) error detection, maximum
on-time volt-second clamps, and overvoltage shutoffs.
The related LTC3300-1 offers a serial interface that allows
the serial ports of multiple LTC3300-1 devices to be daisy-
chained without opto-couplers or isolators.
High Efficiency Bidirectional Balancing
Balancer Efficiency
n
Bidirectional Synchronous Flyback Balancing
of Up to 6 Li-Ion or LiFePO
4
Cells in Series
n
Up to 10A Balancing Current (Set by Externals)
n
Integrates Seamlessly with the LTC680x Family of
Multicell Battery Stack Monitors
n
Bidirectional Architecture Minimizes Balancing
Time and Power Dissipation
n
Up to 92% Charge Transfer Efficiency
n
Stackable Architecture Enables >800V Systems
n
Uses Simple 2-Winding Transformers
n
1MHz Serial Interface with 4-Bit
CRC Packet Error Checking
n
Individually Addressable with 5-Bit Address
n
Numerous Fault Protection Features
n
48-Lead Exposed Pad QFN and LQFP Packages
n
Electric Vehicles/Plug-in HEVs
n
High Power UPS/Grid Energy Storage Systems
n
General Purpose Multicell Battery Stacks
L, LT, LTC , LT M , Linear Technology and the Linear logo are registered trademarks and isoSPI
is a trademark of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
SERIAL I/O
+
CELL 1
I
CHARGE
CHARGE
SUPPLY
CHARGE
SUPPLY
(I
CHARGE
1-6)
NEXT CELL BELOW
33002 TA01a
LTC3300-2
LTC3300-2
ADDRESS n + 1
ADDRESS n
NEXT CELL ABOVE
•
•
+
CELL 6
+
CELL 7
+
CELL 12
I
DISCHARGE
CHARGE
RETURN
CHARGE
RETURN
(I
DISCHARGE
1-6)
•
•
4
5
5
4
4
4
4
ISOLATOR
ISOLATOR
NUMBER OF CELLS (SECONDARY SIDE)
6
80
CHARGE TRANSFER EFFICIENCY (%)
85
95
90
100
8 10
CHARGE
DISCHARGE
33001 TA01b
12
DC2064A DEMO BOARD
I
CHARGE
= I
DISCHARGE
= 2.5A
V
CELL
= 3.6V
LTC3300-2
2
33002f
For more information www.linear.com/LTC3300-2
ABSOLUTE MAXIMUM RATINGS
Total Supply Voltage (C6 to V
–
) ................................. 36V
Input Voltage (Relative to V
–
)
C1 ........................................................... –0.3V to 6V
I1P ....................................................... –0.3V to 0.3V
I1S, I2S, I3S, I4S, I5S, I6S .................... –0.3V to 0.3V
CSBI, SCKI, SDI ....................................... –0.3V to 6V
V
REG
, SDO ............................................... –0.3V to 6V
RTONP, RTONS ........... –0.3V to Min[V
REG
+ 0.3V, 6V]
CTRL, BOOST, WDT ....–0.3V to Min[V
REG
+ 0.3V, 6V]
A4, A3, A2, A1, A0 .......–0.3V to Min[V
REG
+ 0.3V, 6V]
(Note 1)
TOP VIEW
49
V
–
UK PACKAGE
48-LEAD (7mm × 7mm) PLASTIC QFN
G6S
1
I6S 2
G5S 3
I5S 4
G4S 5
I4S 6
G3S
7
I3S
8
G2S 9
I2S 10
G1S 11
I1S 12
36 C5
35 G5P
34 I5P
33 C4
32 G4P
31 I4P
30 C3
29 G3P
28 I3P
27 C2
26 G2P
25 I2P
48 V
REG
47 A4
46 A3
45 A2
44 A1
43 A0
42 BOOST
41 BOOST
–
40 BOOST
+
39 C6
38 G6P
37 I6P
RTONS 13
RTONP 14
CTRL 15
CSBI 16
SCKI 17
SDI 18
SDO
19
WDT
20
V
–
21
I1P 22
G1P 23
C1 24
T
JMAX
= 150°C, θ
JA
= 34°C/W, θ
JC
= 3°C/W
EXPOSED PAD (PIN 49) IS V
–
, MUST BE SOLDERED TO PCB
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
G6S
I6S
G5S
I5S
G4S
I4S
G3S
I3S
G2S
I2S
G1S
I1S
13
14
15
16
17
18
19
20
21
22
23
24
RTONS
RTONP
CTRL
CSBI
SCKI
SDI
SDO
WDT
V
–
I1P
G1P
C1
48
47
46
45
44
43
42
41
40
39
38
37
V
REG
A4
A3
A2
A1
A0
BOOST
BOOST
–
BOOST
+
C6
G6P
I6P
C5
G5P
I5P
C4
G4P
I4P
C3
G3P
I3P
C2
G2P
I2P
TOP VIEW
49
V
–
LXE PACKAGE
48-LEAD (7mm × 7mm) PLASTIC LQFP
T
JMAX
= 150°C, θ
JA
= 20.46°C/W, θ
JC
= 3.68°C/W
EXPOSED PAD (PIN 49) IS V
–
, MUST BE SOLDERED TO PCB
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3300IUK-2#PBF LTC3300IUK-2#TRPBF LTC3300UK-2
48-Lead (7mm × 7mm) Plastic QFN
–40°C to 125°C
LTC3300HUK-2#PBF LTC3300HUK-2#TRPBF LTC3300UK-2
48-Lead (7mm × 7mm) Plastic QFN
–40°C to 150°C
LEAD FREE FINISH TRAY PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3300ILXE-2#PBF LTC3300ILXE-2#PBF LTC3300LXE-2
48-Lead (7mm × 7mm) Plastic eLQFP
–40°C to 125°C
LTC3300HLXE-2#PBF LTC3300HLXE-2#PBF LTC3300LXE-2
48-Lead (7mm × 7mm) Plastic eLQFP
–40°C to 150°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on nonstandard lead based finish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
Voltage Between Pins
Cn to Cn-1* .............................................. –0.3V to 6V
InP to Cn-1* .......................................... –0.3V to 0.3V
BOOST
+
to C6 .......................................... –0.3V to 6V
SDO Current ........................................................... 10mA
G1P, GnP, G1S, GnS, BOOST
–
Current ............... ±200mA
Operating Junction Temperature Range (Notes 2, 7)
LTC3300I-2 ........................................ –40°C to 125°C
LTC3300H-2 ...................................... –40°C to 150°C
Storage Temperature Range .................. –65°C to 150°C
*n = 2 to 6
LTC3300-2
3
33002f
For more information www.linear.com/LTC3300-2
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the specified operating
junction temperature range, otherwise specifications are at T
A
= 25°C. (Note 2) BOOST
+
= 25.2V, C6 = 21.6V, C5 = 18V, C4 = 14.4V,
C3 = 10.8V, C2 = 7.2V, C1 = 3.6V, V
–
= 0V, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
DC Specifications
I
Q_SD
Supply Current When Not
Balancing (Post Suspend or Pre
First Execute)
Measured at C1, C2, C3, C4, C5
Measured at C6
Measured at BOOST
+
6
0
14
0
1
22
10
µA
µA
µA
I
Q_ACTIVE
Supply Current When Balancing
(Note 3)
Balancing C1 Only (Note 4 for V
–
, C2, C6)
Measured at C1
Measured at C2, C3, C4, C5
Measured at C6
Measured at BOOST
+
250
70
560
0
375
105
840
10
µA
µA
µA
µA
Balancing C2 Only (Note 4 for C1, C3, C6)
Measured at C1
Measured at C2
Measured at C3, C4, C5
Measured at C6
Measured at BOOST
+
–105
–70
250
70
560
0
375
105
840
10
µA
µA
µA
µA
µA
Balancing
C3 Only (Note 4 for C2, C4, C6)
Measured at C1, C4, C5
Measured at C2
Measured at C3
Measured at C6
Measured at BOOST
+
–105
70
–70
250
560
0
105
375
840
10
µA
µA
µA
µA
µA
Balancing
C4 Only (Note 4 for C3, C5, C6)
Measured at C1, C2, C5
Measured at C3
Measured at C4
Measured at C6
Measured at BOOST
+
–105
70
–70
250
560
0
105
375
840
10
µA
µA
µA
µA
µA
Balancing
C5 Only (Note 4 for C4, C6)
Measured at C1, C2, C3
Measured at C4
Measured at C5
Measured at C6
Measured at BOOST
+
–105
70
–70
250
560
0
105
375
840
10
µA
µA
µA
µA
µA
Balancing
C6 Only (Note 4 for C5, C6, BOOST
+
)
Measured at C1, C2, C3, C4
Measured at C5
Measured at C6
Measured at BOOST
+
(BOOST = V
–
)
Measured at BOOST
+
(BOOST = V
REG
)
–105
70
–70
740
60
0
105
1110
90
10
µA
µA
µA
µA
µA
V
CELL|MIN
Minimum Cell Voltage (Rising)
Required for Primary Gate Drive
Cn to Cn – 1 Voltage to Balance Cn, n = 2 to 6
C1 Voltage to Balance C1
Cn + 1 to Cn Voltage to Balance Cn, n = 1 to 5
BOOST
+
to C6 Voltage to Balance C6, BOOST = V
–
l
l
l
l
1.8
1.8
1.8
1.8
2
2
2
2
2.2
2.2
2.2
2.2
V
V
V
V
V
CELL|MIN(HYST)
V
CELL|MIN
Comparator Hysteresis 70 mV
V
CELL|MAX
Maximum Cell Voltage (Rising)
Before Disabling Balancing
C1, Cn to Cn – 1 Voltage to Balance Any Cell,
n = 2 to 6
l
4.7 5 5.3 V
V
CELL|MAX(HYST)
V
CELL|MAX
Comparator Hysteresis 0.5 V
V
CELL|RECONNECT
Maximum Cell Voltage (Falling) to
Re-Enable Balancing
l
4.25 V
V
REG
Regulator Pin Voltage 9V ≤ C6 ≤ 36V, 0mA ≤ I
LOAD
≤ 20mA
l
4.4 4.8 5.2 V
V
REG|POR
V
REG
Voltage (Rising) for
Power-On Reset
4.0 V
V
REG|MIN
Minimum V
REG
Voltage (Falling)
for Secondary Gate Drive
V
REG
Voltage to Balance Cn, n = 1 to 6
l
3.8 V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30P31-P33P34-P36P37-P39P40-P42

LTC3300IUK-2#TRPBF

Mfr. #:
Buy LTC3300IUK-2#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Battery Management Addressable Hi Eff Bi-dir Multicell Bat
Lifecycle:
New from this manufacturer.
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