音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

LM3647IM Datasheet

  • LM3647IM

  • Universal Battery Charger for Li-Ion, Ni-MH and Ni-Cd Batter...

  • 17頁

  • NSC

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

LM3647 Universal Battery Charger for Li-Ion, Ni-MH and Ni-Cd Batteries
PRELIMINARY
March 2000
LM3647
Universal Battery Charger
for Li-Ion, Ni-MH and Ni-Cd Batteries
1.0 General Description
The LM3647 is a charge controller for Lithium-Ion (Li-Ion),
Nickel-Metal Hydride (Ni-MH) and Nickel-Cadmium (Ni-
Cd) batteries. The device can use either a pulsed-current
charging or a constant-current charging technique. The
device can also be con鏗乬ured to discharge before charg-
ing. Throughout the charging sequence the LM3647 mon-
itors voltage and/or temperature and time in order to
terminate charging.
s
s
s
s
s
Negative delta voltage (-鈭哣)
Maximum voltage
Optional: Delta temperature/delta time (鈭員/鈭唗)
Optional: Maximum temperature
Backup: Maximum time
When using an external current source, the current is con-
trolled by the LM3647 which turns the current source on
and off. The LM3647 automatically detects the presence of
a battery and starts the charging procedure when the bat-
tery is installed. Whenever an error occurs (e.g., short cir-
cuit, temperature too high, temperature too low, bad
battery, charge time over, etc.) the LM3647 will stay in error
mode until the battery is removed or it gets within the al-
lowed charging temperature range. The LM3647 is avail-
able in a standard 20-lead SOIC surface mount package.
Key Features
s
Auto-adaptive fast charge
s
High-resolution, accurate voltage monitoring prevents
Li-Ion undercharge or overcharge
s
Fast charge, pre-charge and maintenance currents are
provided. Different currents are selectable via external
resistors.
s
Fast-charge termination by
鈭?/div>
temperature/鈭?time, maxi-
mum voltage, maximum temperature, negative
鈭?/div>
volt-
age and maximum time
s
Dynamically detects battery insertion, removal, short
circuit and bad battery without additional hardware
s
Supports charging of battery packs with 2-8 cells of Ni-
Cd/Ni-MH or 1-4 cells of Li-Ion
s
Three LED indicators and Buzzer output indicate oper-
ational modes
s
Ni-MH/Ni-Cd charge mode, Li-Ion charge mode or dis-
charge mode can be selected manually
s
PWM switching controller
If both voltage and temperature fail to trigger the termina-
tion requirements, then the maximum time (con鏗乬ured by
external hardware) steps in which terminates the charging.
In Ni-Cd/Ni-MH mode, four different charging stages are
used:
s
s
s
s
s
s
s
s
Soft-start charge
Fast charge
Topping charge
Maintenance charge
Quali鏗乧ation
Fast Charge Phase 1, Constant Current
Fast Charge phase 2, Constant Voltage
Maintenance charge
In Li-Ion mode, four different charging stages are used:
Applications
s
Battery charging systems for:
鈥?Portable consumer electronics
鈥?Audio/video equipment
鈥?Communications equipment
鈥?Point of sale devices
鈥?Power tools
鈥?Personal convenience products
The charge current of the LM3647 is con鏗乬ured via exter-
nal resistors, which in turn controls the duty cycle of the
PWM switching control output. For cost-sensitive applica-
tions, the LM3647 charge controller can be con鏗乬ured
without a temperature sensor and to use an external cur-
rent source.
漏2000 National Semiconductor Corporation
www.national.com

LM3647IM 產(chǎn)品屬性

  • 0現(xiàn)貨

  • 停產(chǎn)

  • -

  • 管件

  • 停產(chǎn)

  • 多化學(xué)

  • 1 ~ 4

  • 恒流，脈沖式

  • -

  • -

  • -

  • -

  • 5.5V

  • -

  • -40°C ~ 85°C（TA）

  • 表面貼裝型

  • 20-SOIC（0.295"，7.50mm 寬）

  • 20-SOIC

LM3647IM相關(guān)型號PDF文件下載

  • 型號
    版本
    描述
    廠商
    下載
  • 英文版
    High Speed Differential Comparator
    NSC
  • 英文版
    High Speed Differential Comparator
  • 英文版
    High Speed Differential Comparators
    NSC
  • 英文版
    INFRARED LAMP LED
    SEOUL
  • 英文版
    High Speed Differential Comparators
  • 英文版
    National Semiconductor [LM363 Precision Instrumentation Amp...
    NSC
  • 英文版
    National Semiconductor [LM368-2.5 Precision Voltage Referen...
    NSC
  • 英文版
    Precision Voltage Reference
    NSC
  • 英文版
    Precision Voltage Reference
  • 英文版
    High Speed Differential Comparator
    NSC
  • 英文版
    High Speed Differential Comparator
    NSC
  • 英文版
    High Speed Differential Comparator
    NSC
  • 英文版
    Seoul Semiconductor [GREEN OVAL LAMP LED]
    SEOUL
  • 英文版
    National Semiconductor [High Speed Differential Comparators...
    NSC
  • 英文版
    National Semiconductor [High Speed Differential Comparators...
    NSC
  • 英文版
    High Speed Differential Comparators
    NSC
  • 英文版
    Lithium-Ion Battery Charger Controller
    NSC
  • 英文版
    Lithium-Ion Battery Charger Controller
  • 英文版
    Single Cell Lithium-Ion Battery Charger Controller
    NSC
  • 英文版
    Single Cell Lithium-Ion Battery Charger Controller

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時間周一至周五
9:00-17:30

關(guān)注官方微信號，
第一時間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動力！意見一經(jīng)采納，將有感恩紅包奉上哦！