Battery pack w/ only protection

Charge/discharge power stage

The Charge/Discharge Power Stage is used to protect the battery pack from abnormalities such as over voltage, over current charging/discharging, over temperature and external short-circuit. This can be implemented by using two low voltage FETs, which are controlled by the control unit.

Products

N-channel MOSFETs

CSD18534Q5A—60-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 9.8 mOhm

CSD19536KTT—100-V, N channel NexFET™ power MOSFET, single D2PAK, 2.4 mOhm

Battery protectors

BQ77216—Voltage and temperature protection for 3-s to 16-s cell Li-ion batteries with internal delay timer

BQ76200—High-side n-channel FET driver

BQ7718—Family 2-5S Overvoltage Protector with Internal Delay Timer

Low-side drivers

UCC27624—5-A/5-A dual-channel gate driver with 4-V UVLO, 30-V VDD and low prop delay

UCC27524—5-A/5-A dual-channel gate driver with 5-V UVLO, enable, and 1-ns delay Matching

UCC27517A—4-A/4-A single-channel gate driver with 5-V UVLO and negative input voltage handling

Auxiliary power supply

The auxiliary power supply sub-system in battery pack consists of LDO for powering the various sub-systems present inside the battery pack.

Products

Linear & low-dropout (LDO) regulators

TPS7A24—200-mA, 18-V, ultra-low-IQ, low-dropout (LDO) voltage regulator with enable

TPS7A19—450-mA, 40-V, low-IQ, adjustable low-dropout voltage regulator with power good & enable

TPS7A43—50-mA, 85-V, ultra-low IQ, dual low-dropout voltage regulator with power good and precision enable

TPS709—150-mA, 30-V, ultra-low-IQ, low-dropout voltage regulator with reverse current protection and enable

Buck converters (integrated switch)

LM5164—6-V to 100-V input, 1-A synchronous buck DC-DC converter with ultra-low IQ

TPS562203—4.2-V to 17-V input, 2-A synchronous buck converter in SOT563 with eco-mode

LM5163—100-V input, 0.5-A synchronous buck DC/DC converter with ultra-low IQ

LM5164-Q1—6-V to 100-V input, 1-A synchronous DC-DC buck converter with ultra-low IQ

TPS562206—4.2-V to 17-V input, 2-A synchronous buck converter in SOT563 with FCCM mode

Charge/discharge power stage

The Charge/Discharge Power Stage is used to protect the battery pack from abnormalities such as over voltage, over current charging/discharging, over temperature and external short-circuit. This can be implemented by using two low voltage FETs, which are controlled by the control unit.

Products

N-channel MOSFETs

CSD18534Q5A—60-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 9.8 mOhm

CSD19536KTT—100-V, N channel NexFET™ power MOSFET, single D2PAK, 2.4 mOhm

Battery protectors

BQ77216—Voltage and temperature protection for 3-s to 16-s cell Li-ion batteries with internal delay timer

BQ76200—High-side n-channel FET driver

BQ7718—Family 2-5S Overvoltage Protector with Internal Delay Timer

Low-side drivers

UCC27624—5-A/5-A dual-channel gate driver with 4-V UVLO, 30-V VDD and low prop delay

UCC27524—5-A/5-A dual-channel gate driver with 5-V UVLO, enable, and 1-ns delay Matching

UCC27517A—4-A/4-A single-channel gate driver with 5-V UVLO and negative input voltage handling

Control & complete protection

This sub-system is responsible for protecting the battery pack. The data that is monitored includes individual cell voltages and pack temperature. Additionally, it also implements an externally exposed communication interface outside of the battery-pack for status monitoring and indication purposes.

Products

Battery protectors

BQ77216—Voltage and temperature protection for 3-s to 16-s cell Li-ion batteries with internal delay timer

BQ76200—High-side n-channel FET driver

BQ7718—Family 2-5S Overvoltage Protector with Internal Delay Timer

MSP430 microcontrollers

MSP430FR2155—24 MHz MCU with 32KB FRAM, 4KB SRAM, comparator, 12-bit ADC, UART/SPI/I2C, timer