BQ25622RYKR PDF预览

BQ25622RYKR

更新时间: 2025-07-23 11:12:51
品牌 Logo 应用领域
德州仪器 - TI 电池
页数 文件大小 规格书
84页 3764K
描述
具有 18V 最大输入、电流限制、ADC 和 OTG 的 I²C 控制型单节 3.5A 降压电池充电器 | RYK | 18 | -40 to 85

BQ25622RYKR 数据手册

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BQ25620, BQ25622  
SLUSEG2A – SEPTEMBER 2022 – REVISED OCTOBER 2022  
BQ25620/BQ25622 I2C Controlled, 3.5-A, Maximum 18-V Input, Charger with NVDC  
Power Path Management and OTG Output  
IP Camera, EPOS  
Portable Medical Equipment  
1 Features  
High-efficiency, 1.5-MHz, synchronous switching  
mode buck charger for single cell battery  
– >90% efficiency down to 25-mA output current  
from 5-V input  
– Charge termination from 10 mA to 620 mA, 10-  
mA steps  
– Flexible JEITA profile for safe charging over  
temperature  
BATFET control to support shutdown, ship mode  
and full system reset  
– 1.5-μA quiescent current in battery only mode  
– 0.15-μA battery leakage current in ship mode  
– 0.1-μA battery leakage current in shutdown  
Supports USB On-The-Go (OTG)  
– Boost mode operation supporting 3.84-V to 9.6-  
V output  
– >90% boost efficiency down to 100-mA OTG  
current for 5-V VBUS  
Supports a wide range of input sources  
3 Description  
The BQ25620 and BQ25622 are highly-integrated  
3.5-A switch-mode battery charge management and  
system power path management devices for single  
cell Li-Ion and Li-polymer batteries. The solution is  
highly integrated with built-in current sensing, loop  
compensation, input reverse-blocking FET (RBFET,  
Q1), high-side switching FET (HSFET, Q2), low-  
side switching FET (LSFET, Q3), and battery FET  
(BATFET, Q4) between system and battery. The  
devices use narrow VDC power path management,  
regulating the system slightly above the battery  
voltage without dropping below  
a
configurable  
minimum system voltage. The low impedance power  
path optimizes switch-mode operation efficiency,  
reduces battery charging time, extends battery life  
during discharging phase, and the ultra-low 0.15-μA  
ship mode current extends battery shelf life. The I2C  
serial interface with charging and system settings  
makes the BQ25620 and BQ25622 truly flexible  
solutions.  
– 3.9-V to 18-V wide input operating voltage  
range with 26-V absolute maximum input  
voltage  
– Maximizes source power with input voltage  
regulation (VINDPM) and input current  
regulation (IINDPM)  
– VINDPM threshold automatically tracks battery  
voltage  
Device Information  
PART NUMBER  
BQ25620  
BQ25622  
PACKAGE(1)  
BODY SIZE (NOM)  
2.50 mm × 3.00 mm  
2.50 mm × 3.00 mm  
WQFN (18)  
WQFN (18)  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
Efficient battery operation with 15-mΩ BATFET  
Narrow VDC (NVDC) power path management  
System  
1 uH  
– System instant-on with depleted or no battery  
– Battery supplement when adapter is fully  
loaded  
Load  
3.4 - 18V  
VBUS  
SW  
USB  
Detection  
USB  
D+/D- (620)  
Flexible autonomous or I2C-controlled modes  
Integrated 12-bit ADC for voltage, current,  
temperature monitoring  
BTST  
SYS  
TS_BIAS (622)  
ILIM (622)  
2.6 – 4.85V  
REGN (620)  
TS_BIAS (622)  
REGN  
High accuracy  
I2C Bus  
PG  
BQ25620  
BQ25622  
– ±0.5% charge voltage regulation  
– ±5% charge current regulation  
– ±5% input current regulation  
Safety  
Host  
CE  
TS  
BAT  
1.8 – 4.8V  
QON  
– Thermal regulation and thermal shutdown  
– Input, system, battery overvoltage protection  
– Battery, converter overcurrent protection  
– Charging safety timer  
GND  
Optional  
2 Applications  
BQ25620/2 Simplified Application Diagram  
Tablet  
Gaming and Computer Accessories  
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
 
 

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