首頁 電池管理 IC 電池充電器 IC
首頁
電池管理 IC
電池充電器 IC

BQ2954

最後一次購買

切換模式鋰離子充電控制器

立即訂購
產品規格表

BQ2954

最後一次購買
產品規格表 立即訂購

產品詳細資料

Rating Catalog Number of series cells 1, 2, 3, 4 Cell chemistry Li-Ion/Li-Polymer Charge current (max) (A) 2 Features BAT temp thermistor monitoring (JEITA profile) Vin (min) (V) 4.5 Vin (max) (V) 5.5 Absolute max Vin (max) (V) 7 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 20 Control interface Standalone (RC-Settable) Operating temperature range (°C) 0 to 70
Rating Catalog Number of series cells 1, 2, 3, 4 Cell chemistry Li-Ion/Li-Polymer Charge current (max) (A) 2 Features BAT temp thermistor monitoring (JEITA profile) Vin (min) (V) 4.5 Vin (max) (V) 5.5 Absolute max Vin (max) (V) 7 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 20 Control interface Standalone (RC-Settable) Operating temperature range (°C) 0 to 70
PDIP (N) 16 181.42 mm² 19.3 x 9.4 SOIC (D) 16 59.4 mm² 9.9 x 6
  • Safe charge of Li-Ion battery packs
  • Pulse-width modulation control for current and voltage regulation
  • Programmable high-side/low-side current-sense
  • Fast charge terminated by selectable minimum current; safety backup termination at maximum time
  • Precharge qualification detects shorted or damaged cells and conditions battery
  • Charging continuously qualified by temperature and voltage limits
  • Direct LED control outputs to display charge status and fault conditions
  • Safe charge of Li-Ion battery packs
  • Pulse-width modulation control for current and voltage regulation
  • Programmable high-side/low-side current-sense
  • Fast charge terminated by selectable minimum current; safety backup termination at maximum time
  • Precharge qualification detects shorted or damaged cells and conditions battery
  • Charging continuously qualified by temperature and voltage limits
  • Direct LED control outputs to display charge status and fault conditions

The bq2954 Li-Ion Charge-Management IC uses a flexible pulse-width modulation regulator to control voltage and current during charging. The regulator frequency is set by an external capacitor for design flexibility. The switch-mode design minimizes power dissipation.

For safety, the bq2954 inhibits fast charging until the battery voltage and temperature are within configured limits. If the battery voltage is less than the low-voltage threshold, the bq2954 provides low-current conditioning of the battery.

For charge qualification, the bq2954 uses an external thermistor to measure battery temperature. Charging begins when power is applied or the battery is inserted

The bq2954 charges a battery in two phases. First a constant-current phase replenishes approximately 70% of battery capacity. Then a voltage- regulation phase completes the battery charge.

The bq2954 provides status indications of all charger states and faults for accurate determination of the battery and charge-system conditions.

The bq2954 Li-Ion Charge-Management IC uses a flexible pulse-width modulation regulator to control voltage and current during charging. The regulator frequency is set by an external capacitor for design flexibility. The switch-mode design minimizes power dissipation.

For safety, the bq2954 inhibits fast charging until the battery voltage and temperature are within configured limits. If the battery voltage is less than the low-voltage threshold, the bq2954 provides low-current conditioning of the battery.

For charge qualification, the bq2954 uses an external thermistor to measure battery temperature. Charging begins when power is applied or the battery is inserted

The bq2954 charges a battery in two phases. First a constant-current phase replenishes approximately 70% of battery capacity. Then a voltage- regulation phase completes the battery charge.

The bq2954 provides status indications of all charger states and faults for accurate determination of the battery and charge-system conditions.
filter 尋找其它 電池充電器 IC
下載

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 1
重要文件 類型 標題 格式選項 日期
* Data sheet Lithium Ion Charge Management IC with Integrated Switching Controller datasheet 1999年 9月 5日

訂購與品質

內含資訊：
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中的可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點