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bq24618器件是高度集成的锂离子或锂聚合物开关模式电池充电控制器。 bq24618提供恒定频率同步开关PWM控制器,具有高精度充电电流和电压调节,充电预处理,终端,适配器电流调节和充电状态监控。
bq24618可通过USB端口或AC适配器并支持高达10 A的充电电流。该设备分三个阶段为电池充电:预处理,恒定电流和恒定电压。当电流达到用户可选择的最低水平时,充电终止。可编程充电定时器为充电终止提供安全备份。如果电池电压低于内部阈值,bq24618会自动重启充电周期,当输入电压低于电池电压时,bq24618会进入低静态电流休眠模式。
所有其他商标均为其各自所有者的财产
Number of Series Cells |
Function |
Cell Chemistry |
Battery Charge Voltage (Min) (V) |
Battery Charge Voltage (Max) (V) |
Features |
Charge Current (Max) (A) |
Control Interface |
Control Topology |
Rating |
Operating Temperature Range (C) |
Pin/Package |
Operating Vin (Min) (V) |
Operating Vin (Max) (V) |
Absolute Vin (safety rating) (Max) ((V)) |
BQ24618 | BQ24600 | BQ24610 | BQ24616 | BQ24617 | BQ24620 | BQ24630 | BQ24640 |
---|---|---|---|---|---|---|---|
1 2 3 4 5 6 | 1 2 3 4 5 6 | 1 2 3 4 5 6 | 1 2 3 4 5 6 | 1 2 3 4 5 | 1 2 3 4 5 6 7 | 1 2 3 4 5 6 7 | 1 2 3 4 5 6 7 8 |
Charger | Charger | Charger | Charger | Charger | Charger | Charger | Charger |
Li-Ion/Li-Polymer | Li-Ion/Li-Polymer | Li-Ion/Li-Polymer | Li-Ion/Li-Polymer | Li-Ion/Li-Polymer | Lithium phosphate | Lithium phosphate | SuperCap |
2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 1.8 | 1.8 | 2.1 |
26 | 26 | 26 | 26 | 22 | 26 | 26 | 26 |
Power Path Standard BAT Temp Monitoring | Power Path Temp Monitoring (Thermistor Pin) | Power Path Standard BAT Temp Monitoring | JEITA BAT Temp Monitoring (Thermistor Pin) Power Path | Power Path Standard BAT Temp Monitoring | Temp Monitoring (Thermistor Pin) | Temp Monitoring (Thermistor Pin) | Temp Monitoring (Thermistor Pin) |
10 | 10 | 20 | 20 | 20 | 20 | 20 | 20 |
Standalone (RC-Settable) | Standalone (RC-Settable) | Standalone (RC-Settable) | Standalone (RC-Settable) | Standalone (RC-Settable) | Standalone (RC-Settable) | Standalone (RC-Settable) | Standalone (RC-Settable) |
Switch-Mode Buck | Switch-Mode Buck | Switch-Mode Buck | Switch-Mode Buck | Switch-Mode Buck | Switch-Mode Buck | Switch-Mode Buck | Switch-Mode Buck |
Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
-40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
24VQFN | 16VQFN | 24VQFN | 24VQFN | 24VQFN | 16VQFN | 24VQFN | 16VQFN |
4.7 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
28 | 28 | 28 | 28 | 24 | 28 | 28 | 28 |
33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 |