封裝資訊
| 封裝 | 引腳 DSBGA (YZF) | 15 |
| 作業溫度範圍 (°C) -40 to 85 |
| 包裝數量 | 運送包裝 250 | SMALL T&R |
BQ27520-G4 的特色
- Single-series
cell
Li-ion
battery
fuel
gauge
resides
on
system
board
- Integrated 2.5 VDC LDO
- External low-value 10-mΩ sense resistor
- Patented Impedance
Track™technology
- Adjusts for battery aging, self-discharge, temperature, and rate changes
- Reports remaining capacity, state-of-charge (SOC), and time-to-empty
- Optional smoothing filter
- Battery state-of-health (aging) estimation
- Supports embedded or removable packs with up to 14500-mAhcapacity
- Accommodates pack swapping with twoseparate battery profiles
- Microcontroller
peripheral supports
- 400-kHz I2C serial interface
- 32 bytes of scratch-pad FLASH NVM
- Battery low digital output warning
- Configurable SOC interrupts
- External thermistor, internal sensor, or host-reported temperature options
- Tiny 15-pin, 2610 × 1956 µm, 0.5-mm pitch NanoFree™ (DSBGA) package
BQ27520-G4 的說明
The Texas Instruments BQ27520-G4 system-side Li-ion battery fuel gauge is a microcontroller peripheral that provides fuel gauging for single-cell Li-ion battery packs. The device requires little system microcontroller firmware development. The fuel gauge resides on the main board of the system and manages an embedded battery (non-removable) or a removable battery pack.
The fuel gauge uses the patented Impedance Track™ algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), run-time to empty (minimum), battery voltage (mV), temperature (°C), and state of health (%).
Battery fuel gauging requires only PACK+ (P+), PACK– (P–), and optional Thermistor (T) connections to a removable battery pack or embedded battery circuit. The device uses a 15-ball NanoFree™ (DSBGA) package in the nominal dimensions of 2610 × 1956 µm with 0.5-mm lead pitch. It is ideal for space-constrained applications.