BQ76922中文资料德州仪器数据手册PDF规格书
BQ76922规格书详情
1 Features
• Battery monitoring capability for 3-series to 5-
series cells
• Integrated charge pump for high-side NFET
protection with optional autonomous recovery
• Extensive protection suite including voltage,
temperature, current, and internal diagnostics
• Two independent ADCs
– Support for simultaneous current and voltage
sampling
– High-accuracy coulomb counter with input
offset error < 1μV (typical)
– High accuracy cell voltage measurement <
10mV (typical)
• Wide-range current applications (±200mV
measurement range across sense resistor)
• Integrated secondary chemical fuse drive
protection
• Autonomous or host-controlled cell balancing
• Multiple power modes (typical battery pack
operating range conditions)
– NORMAL mode: 286μA
– Multiple SLEEP mode options: 24μA to 41μA
– Multiple DEEPSLEEP mode options: 9μA to
10μA
– SHUTDOWN mode: 1μA
• High-voltage tolerance of 60V on cell connect and
select additional pins
• Tolerant of random cell attach sequence on
production line
• Support for temperature sensing using internal
sensor and up to five external thermistors
• Integrated one-time-programmable (OTP) memory
programmable by customers on production line
• Communication options include 400kHz I2C, and
HDQ one-wire interface
• Programmable LDO for external system usage
• 32-pin QFN package (RSN)
2 Applications
• Cordless power tools and garden tools
• Vacuum cleaners
• Vacuum robots
• Non-military drones
• Other industrial battery pack (3-series–5-series)
3 Description
The Texas Instruments BQ76922 device is a
highly integrated, high-accuracy battery monitor
and protector for 3-series to 5-series Li-ion, Lipolymer,
and LiFePO4 battery packs. The device
includes a high-accuracy monitoring system, a
highly configurable protection subsystem, and support
for autonomous or host controlled cell balancing.
Integration includes high-side charge-pump NFET
drivers, a programmable LDO for external system
use, and a host communication peripheral supporting
400kHz I2C and HDQ one-wire standards. The
BQ76922 device is available in a 32-pin 4 × 4 mm
QFN package.
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI |
三年内 |
1983 |
纳立只做原装正品13590203865 |
询价 | |||
TI |
2020+ |
TSSOP20 |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
TI |
21+ |
TSSOP20 |
142 |
原装现货假一赔十 |
询价 | ||
TI(德州仪器) |
2021+ |
TSSOP-20 |
499 |
询价 | |||
TI/德州仪器 |
2022 |
TSSOP20 |
80000 |
原装现货,OEM渠道,欢迎咨询 |
询价 | ||
TI/德州仪器 |
23+ |
QFN-24 |
3000 |
一级代理原厂VIP渠道,专注军工、汽车、医疗、工业、 |
询价 | ||
Texas Instruments |
21+ |
20-TSSOP |
65200 |
一级代理/放心采购 |
询价 | ||
TI |
23+ |
589610 |
新到现货 原厂一手货源 价格秒杀代理! |
询价 | |||
TexasInstruments |
24+ |
20-TSSOP |
90000 |
原厂正规渠道、保证进口原装现货假一罚十价格合理 |
询价 | ||
TI/德州仪器 |
22+ |
TSSOP-20 |
9000 |
原装正品 |
询价 |