UC3906

更新时间： 2024-11-24 22:49:27

品牌	Logo	应用领域
德州仪器 - TI		电池
页数	文件大小	规格书
8页	570K
描述
Sealed Lead-Acid Battery Charger

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UC3906 数据手册

UC2906

UC3906

Sealed Lead-Acid Battery Charger

FEATURES

DESCRIPTION

•

Optimum Control for Maximum The UC2906 series of battery charger controllers contains all of the necessary

Battery Capacity and Life

circuitry to optimally control the charge and hold cycle for sealed lead-acid batter-

ies. These integrated circuits monitor and control both the output voltage and cur-

rent of the charger through three separate charge states; a high current

bulk-charge state, a controlled over-charge, and a precision float-charge, or

standby, state.

Internal State Logic Provides

Three Charge States

Precision Reference Tracks

Battery Requirements Over

Temperature

Optimum charging conditions are maintained over an extended temperature

range with an internal reference that tracks the nominal temperature charac-

teristics of the lead-acid cell. A typical standby supply current requirement of only

1.6mA allows these ICs to predictably monitor ambient temperatures.

•

Controls Both Voltage and

Current at Charger Output

•

System Interface Functions

Separate voltage loop and current limit amplifiers regulate the output voltage and

current levels in the charger by controlling the onboard driver. The driver will sup-

ply up to 25mA of base drive to an external pass device. Voltage and current

sense comparators are used to sense the battery condition and respond with

logic inputs to the charge state logic. A charge enable comparator with a trickle

bias output can be used to implement a low current turn-on mode of the charger,

preventing high current charging during abnormal conditions such as a shorted

battery cell.

Typical Standby Supply

Current of only 1.6mA

Other features include a supply under-voltage sense circuit with a logic output to

indicate when input power is present. In addition the over-charge state of the

charger can be externally monitored and terminated using the over-charge indi-

cate output and over-charge terminate input.

BLOCK DIAGRAM

SLUS186 - SEPTEMBER 1996

12 3 4 5 6 7 8

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与UC3906相关器件

型号	品牌	获取价格	描述	数据表
UC3906DW	TI	获取价格	Sealed Lead-Acid Battery Charger
UC3906DWG4	TI	获取价格	Sealed Lead-Acid Battery Charger
UC3906DWTR	TI	获取价格	Sealed Lead-Acid Battery Charger
UC3906DWTRG4	TI	获取价格	Sealed Lead-Acid Battery Charger
UC3906J	TI	获取价格	Sealed Lead-Acid Battery Charger
UC3906L	TI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, CQCC20, CERAMIC, LCC-20
UC3906N	TI	获取价格	IC-BATTERY CHARGER
UC3906NG4	TI	获取价格	Sealed Lead-Acid Battery Charger
UC3906Q	TI	获取价格	Sealed Lead-Acid Battery Charger
UC3906QG3	TI	获取价格	Sealed Lead-Acid Battery Charger