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bq76PL536A-Q1
Texas
Instruments
µC
C2000Œ
TMS570Œ
VSENSE0
VSENSE1
VSENSE2
VSENSE3
VSENSE4
VSENSE5
VSENSE6
VBAT
GPIO
HSEL
LDOD1/LDOD2
SPI
CONV
DRDY
FAULT
ALERT
EQx
6
TS1/TS2
CONV_S
ALERT_S
SDO_S
SDI_S
VREF
REG50
GND
LDOA
²
R
T
GPAI+
GPAI-
SPI
SPI
SCLK_S
CS_S
FAULT_S
DRDY_S
SDI_N
ALERT_N
DRDY_N
SCLK_N
FAULT_N
CONV_N
SDO_N
CS_N
bq76PL536A-Q1
VSENSE0
VSENSE1
VSENSE2
VSENSE3
VSENSE4
VSENSE5
VSENSE6
VBAT
GPIO
HSEL
LDOD1/LDOD2
SPI
CONV
DRDY
FAULT
ALERT
EQx
6
TS1/TS2
CONV_S
ALERT_S
SDO_S
SDI_S
VREF
REG50
GND
LDOA
R
T
GPAI+
GPAI-
SCLK_S
CS_S
FAULT_S
DRDY_S
SDI_N
ALERT_N
DRDY_N
SCLK_N
FAULT_N
CONV_N
SDO_N
CS_N
+
Cell B alancing Circuits
LP F ilters ² Protection
Cell B alancing Circuits
LP Filters ² Protection
TI Designs
bq76PL536A-Q1 Reference Design
TI Designs Design Features
The bq76PL536A-Q1 is a stackable, three-to-six series • Module Transient Suppression Diode
cell lithium-ion battery pack protector and analog front
• In-Rush Protection
end (AFE) that incorporates a precision analog-to-
• Zener Diode
digital converter (ADC), independent cell voltage and
• Front-End Inrush Protection and Nyquist Filter
temperature protection, cell balancing, and a precision
5-V low drop-out regulator (LDO) to power user
• EMC Susceptibility Filter
circuitry. The bq76PL536A-Q1 integrates a voltage
• Balancing Field Effect Transistor (FET) and
translation and precision ADC system to measure
Resistors
battery cell voltage with high accuracy and speed. The
• Minimizing Power Consumption When Host Loses
bq76PL536A-Q1 provides full protection (secondary
Power
protection) for overvoltage, undervoltage, and
overtemperature conditions. When safety thresholds
• Temperature Sensing
have been exceeded, the bq76PL536A-Q1 device sets
• Host Interface
the FAULT output. No external components are
• Internal Voltage Regulators
required to configure or enable the protection features.
Cell voltage and temperature protection functions are
Featured Applications
independent of the ADC system. Programmable
protection thresholds and detection delay times are
• Electric and Hybrid Electric Vehicles
stored in the error check/correct (ECC) OTP EPROM,
• Uninterruptible Power Systems (UPS)
which increases the flexibility and reliability of the
• E-Bike and E-Scooter
battery management system.
• Large-Format Battery Systems
Design Resources
Tool Folder Containing Design Files
TIDA-00821
bq76PL536A-Q1 Product Folder
TMS570 Product Folder
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TIDUB04–December 2015 bq76PL536A-Q1 Reference Design
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