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Analog Devices LTC3300-1 | Demoboard DC2100A

High Efficiency Bidirectional Multicell Battery Balancer

Overview

TopologyOther Topology
Input voltage3.2-4.5 V
IC revision4

Description

The LTC3300-1 is a fault-protected controller IC for transformer-based bidirectional active balancing of multicell 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 LTC3300-1 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. A unique level-shifting SPI-compatible serial interface enables multiple LTC3300-1 devices to be connected in series, without opto-couplers or isolators, allowing for balancing of every cell in a long string of series-connected batteries.When multiple LTC3300-1 devices are connected in series they can operate simultaneously, permitting all cells in the stack to be balanced concurrently and independently. Fault protection features include readback capability, cyclic redundancy check (CRC) error detection, maximum on-time volt-second clamps, and overvoltage shutoffs.

Features

  • Bidirectional Synchronous Flyback Balancing of Up to 6 Li-Ion or LiFePO4 Cells in Series
  • Up to 10A Balancing Current (Set by Externals)
  • Integrates Seamlessly with the LTC680x Family of Multicell Battery Stack Monitors
  • Bidirectional Architecture Minimizes Balancing Time and Power Dissipation
  • Up to 92% Charge Transfer Efficiency
  • Stackable Architecture Enables >1000V Systems
  • Uses Simple 2-Winding Transformers
  • 1MHz Daisy-Chainable Serial Interface with 4-Bit CRC Packet Error Checking
  • High Noise Margin Serial Communication
  • Numerous Fault Protection Features
  • 48-Lead Exposed Pad QFN and LQFP Packages
  • AEC-Q100 Qualified for Automotive Applications

Typical applications

  • High Power UPS/Grid Energy Storage Systems, General Purpose Multicell Battery Stacks
  • Electric Vehicles/Plug-in HEVs

Products

Order Code Data­sheet Simu­lation Downloads Product seriesxPxCApplication SystemVINVOut1
(V)
IOut1
(mA)
L
(µH)
nIR
(A)
ISAT
(A)
LS
(µH)
VT
(V)
SizeIC ReferenceH
(mm)
Operation Force (Value)
(g)
Electrical Life
(Cycles)
Actuator ColorVaporphase processPinsRowsGenderTypeIR
(A)
PackagingPitch
(mm)
MountL
(mm)
Working Voltage
(V (AC))
Contact Resistance
(mΩ)
Tol. R Samples
615008140121SPEC
6 files WR-MJ Modular Jack Horizontal Shielded Front Grounding Post 8P8C Tab Down 8P8C CAT 3 Horizontal 1.5 Tray THT 120 20 max.
434111025826SPEC
5 files WS-TASV SMT Tact Switch 6.0x3.8 mm 2.5 260 30000 White not specified 0.05 Tape and Reel
750312504SPEC
9 files WE-FLYLT Flyback Transformers for Linear Technology 2 - 5.5 V (DC) 20 250 3.46 1:1 10.2 0.12 500 EP13 LTC3300 12.7 Tape and Reel SMT 13.46
60800213421SPEC
3 files WR-PHD 2.00 mm Jumper with Test Point 1 2 Jumper 3 Bag 2 200 30 max.
62000311121SPEC
6 files WR-PHD 2.00 mm THT Pin Header 2 3 Single Pin Header Straight 2 Bag 2 THT 6 200 20 max.
62000621121SPEC
6 files WR-PHD 2.00 mm THT Dual Pin Header 6 Dual Pin Header Straight 2 Bag 2 THT 6 200 20 max.
62501621621SPEC
6 files WR-BHD 2.00 mm Male Box Header 2 16 Male Straight 2 Tray 2 THT 23.2 250 20 max.
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesxPxCApplication SystemVINVOut1
(V)
IOut1
(mA)
L
(µH)
nIR
(A)
ISAT
(A)
LS
(µH)
VT
(V)
SizeIC ReferenceH
(mm)
Operation Force (Value)
(g)
Electrical Life
(Cycles)
Actuator ColorVaporphase processPinsRowsGenderTypeIR
(A)
PackagingPitch
(mm)
MountL
(mm)
Working Voltage
(V (AC))
Contact Resistance
(mΩ)
Tol. R Samples