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功能與所比較的裝置相似
BQ25172 現行 採用 QFN 封裝的 0.8-A、單芯至六芯 NiMH 獨立線性充電器 Smaller solution size and more flexibility

產品詳細資料

Number of series cells 1, 2, 3, 4 Charge current (max) (A) 2 Vin (max) (V) 6 Cell chemistry NiCd, NiMH Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 6 Absolute max Vin (max) (V) 7 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 4 Rating Catalog Operating temperature range (°C) 0 to 70
Number of series cells 1, 2, 3, 4 Charge current (max) (A) 2 Vin (max) (V) 6 Cell chemistry NiCd, NiMH Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 6 Absolute max Vin (max) (V) 7 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 4 Rating Catalog Operating temperature range (°C) 0 to 70
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Fast charge of nickel cadmium or nickel-metal hydride batteries
  • Direct LED output displays charge status
  • Fast-charge termination by -V, maximum voltage, maximum temperature, and maximum time
  • Internal band-gap voltage reference
  • Optional top-off charge
  • Selectable pulse trickle charge rates
  • Low-power mode
  • 8-pin 300-mil DIP or 150-mil SOIC
  • Fast charge of nickel cadmium or nickel-metal hydride batteries
  • Direct LED output displays charge status
  • Fast-charge termination by -V, maximum voltage, maximum temperature, and maximum time
  • Internal band-gap voltage reference
  • Optional top-off charge
  • Selectable pulse trickle charge rates
  • Low-power mode
  • 8-pin 300-mil DIP or 150-mil SOIC

The bq2002E and bq2002G Fast-Charge ICs are low-cost CMOS battery-charge controllers providing reliable charge termination for both NiCd and NiMH battery applications. Controlling a current-limited or constant-current supply allows the bq2002E/G to be the basis for a cost-effective stand-alone or system-integrated charger. The bq2002E/G integrates fast charge with optional top-off and pulsed-trickle control in a single IC for charging one or more NiCd or NiMH battery cells.

Fast charge is initiated on application of the charging supply or battery replacement. For safety, fast charge is inhibited if the battery temperature and voltage are outside configured limits.

Fast charge is terminated by any of the following:

  • Peak voltage detection (PVD)
  • Negative delta voltage (-V)
  • Maximum voltage
  • Maximum temperature
  • Maximum time

After fast charge, the bq2002E/G optionally tops-off and pulse-trickles the battery per the pre-configured limits. Fast charge may be inhibited using the INH pin. The bq2002E/G may also be placed in low-standby-power mode to reduce system power consumption. The bq2002E differs from the bq2002G only in that a slightly different set of fast-charge and top-off time limits is available. All differences between the two ICs are illustrated in Table 1.

The bq2002E and bq2002G Fast-Charge ICs are low-cost CMOS battery-charge controllers providing reliable charge termination for both NiCd and NiMH battery applications. Controlling a current-limited or constant-current supply allows the bq2002E/G to be the basis for a cost-effective stand-alone or system-integrated charger. The bq2002E/G integrates fast charge with optional top-off and pulsed-trickle control in a single IC for charging one or more NiCd or NiMH battery cells.

Fast charge is initiated on application of the charging supply or battery replacement. For safety, fast charge is inhibited if the battery temperature and voltage are outside configured limits.

Fast charge is terminated by any of the following:

  • Peak voltage detection (PVD)
  • Negative delta voltage (-V)
  • Maximum voltage
  • Maximum temperature
  • Maximum time

After fast charge, the bq2002E/G optionally tops-off and pulse-trickles the battery per the pre-configured limits. Fast charge may be inhibited using the INH pin. The bq2002E/G may also be placed in low-standby-power mode to reduce system power consumption. The bq2002E differs from the bq2002G only in that a slightly different set of fast-charge and top-off time limits is available. All differences between the two ICs are illustrated in Table 1.

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類型 標題 日期
* Data sheet NiCD/NiMH Fast-Charge Management ICs datasheet 1999年 9月 5日
User guide bq2002 Selection Table 2005年 8月 30日

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產品
電池充電器 IC
BQ2000 具有峰值電壓偵測終端器的切換式多化合物電池充電器 BQ2000T 具有 dT/dt 終端的切換模式多化合物電池充電器 BQ2002 具有負 dV、PVT 和加滿時間設置 1 的鎳鎘/鎳氫電池充電控制器 BQ2002C 具有負 dV、PVT 的鎳鎘/鎳氫電池充電控制器 BQ2002D 具有 dT/dt 終端的切換模式鎳鎘/鎳氫電池控制器 BQ2002E 具有負 dV、PVT 和 tMTO setup1 的鎳鎘/鎳氫電池充電控制器 BQ2002F 具有負 dV、PVT 和加滿時間設置 2 的鎳鎘/鎳氫電池充電控制器 BQ2002G 具有負 dV、PVT 和 tMTO 設定 2 的鎳鎘/鎳氫電池充電控制器 BQ2002T 具有 dT/dt 終端和低溫故障的鎳鎘/鎳氫電池充電控制器 BQ2031 具有用戶可選充電演算法的切換模式鉛酸電池充電器 BQ2057C 具有 AutoCompTM 4.2V 的低壓差線性 1 芯鋰離子電池充電控制器 BQ24010 採用 QFN-11 封裝,具有交流電和溫度感測的 1 芯、1A 線性鋰離子電池充電器 BQ24012 採用 QFN-12,具有 FET、交流電出現和充電賦能的 1 芯 1-A 線性鋰離子電池充電器 BQ24013 採用 QFN-11 封裝,具有充電賦能、充電終止賦能的 1 芯 1-A 線性鋰離子電池充電器 BQ24200 採用 MSOP-8 封裝且具溫度感測功能的 500-mA、4.2-V 鋰離子充電器,適用於電流限制應用 BQ24201 採用 MSOP-8 封裝且具溫度感測功能的 500-mA、4.1-V 鋰離子充電器,適用於電流限制應用 BQ24202 採用 MSOP-8 封裝、顯示充電狀態、適用於電流限制應用的 500-mA、4.2-V 鋰離子充電器 BQ24203 採用 MSOP-8 封裝、顯示充電狀態、適用於電流限制應用的 500-mA、4.1-V 鋰離子充電器 BQ24205 採用 MSOP-8 封裝、適用於電流限制應用的 500-mA、4.1-V 鋰離子充電器 BQ24715 具 N 通道功率 MOSFET 選擇器的 SMBus 2-3 芯 NVDC 降壓電池充電器控制器
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SOIC (D) 8 Ultra Librarian

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