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dc2043bfa

DEMO MANUAL DC2043B

Description

LTC3305EFE

Lead Acid Battery Balancer 

Demonstration circuit 2043B is a lead-acid battery balancer 

featuring the 

LTC

®

3305

. The LTC3305 balances up to four 

lead-acid batteries connected in series and incorporates all 

voltage monitoring, gate drive and fault detection circuitry. 

The LTC3305 employs an auxiliary battery or an alternative 

storage means to transfer charge to or from each individual 

battery within the stack. There are two operating modes, 

TIMER mode and CONTINUOUS mode, selected by the 

MODE pin. In TIMER mode, once the balancing operation 

is complete, the LTC3305 goes to a low power state for 

a programmed time and then periodically rebalances the 

L

, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear 

Technology Corporation. All other trademarks are the property of their respective owners.

BoarD photo

batteries. In CONTINUOUS mode, the balancing operation 

continues even after the batteries are balanced to their 

programmed termination voltage.
The LTC3305EFE is available in a 7mm 

×

 7mm 38-lead 

TSSOP surface mount package with exposed pad. 

Design files for this circuit board are available at  

http://www.linear.com/demo/DC2043B

Figure 1. DC2043B Demo Board

Figure 2. Thermal Image of DC2043B

Summary of Contents for LTC3305EFE

Page 1: ...TIMER mode once the balancing operation is complete the LTC3305 goes to a low power state for a programmed time and then periodically rebalances the L LT LTC LTM Linear Technology and the Linear logo...

Page 2: ...f the voltage difference between the auxiliary battery and BAT1 is greater than the selected termination voltage the top switches that connect the positive terminal of BAT1 to the auxiliary battery s...

Page 3: ...ulled low the voltages across individual batteries in the stack may differ by more than the programmed VTERMINATE In the worst case when the capacity of the auxiliary cell is much smaller than the bat...

Page 4: ...V Measure the voltage from the BOOST test point to V4 The volt age should read approximately 0V No LED should be on 5 Set JP2 to EN Measure the voltage from the BOOST testpointtoV4 Thevoltageshouldrea...

Page 5: ...that while the BATX and BATY are off the UVFLT LED is on 11 Increase PS1 and PS5 to 15 9V and observe that while the BATX and BATY are off the OVFLT LED is on Decrease PS1 and PS2 to 12 0V 12 Decreas...

Page 6: ...AC VDC 1206 Eaton TR 3216FF7 R 14 1 Q1 XSTR MOSFET P CH 20V 0 95A SOT 23 CENTRAL SEMI CMPDM8120 PBFREE 15 10 Q2 Q11 XSTR MOSFET N CH 100V 60A PPAK SO 8 VISHAY SIR882DP T1 GE3 16 8 R1 R2 R4 R9 RES 6 04...

Page 7: ...ET 0 064 MTG HOLE 0 125 THICK PCB MILL MAX 2308 4 00 80 00 00 07 0 2 17 E8 E24 TEST POINT TURRET 0 094 MTG HOLE MILL MAX 2501 2 00 80 00 00 07 0 3 4 JP1 JP4 CONN HDR MALE 1x3 2mm THT STR WURTH ELEKTRO...

Page 8: ...NS HOWEVER IT REMAINS THE CUSTOMER S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT C...

Page 9: ...KU NO SCHEMATIC NO AND REVISION PCA BOM PCA ASS Y 2 2 N A NC WT LTC3305 FE LEAD ACID BATTERY BALANCER DC2043B 700 DC2043B_REV01 710 DC2043B_REV01 705 DC2043B_REV01 Thursday November 17 2016 DATE IC NO...

Page 10: ...NCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE EXCEPT TO THE EXTENT OF THIS INDEMNITY NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR...

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