UC3909N

更新时间： 2024-01-07 19:24:58

品牌	Logo	应用领域
德州仪器 - TI		电池开关
页数	文件大小	规格书
14页	748K
描述
Switchmode Lead-Acid Battery Charger

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UC3909N 数据手册

UC2909

UC3909

Switchmode Lead-Acid Battery Charger

FEATURES

DESCRIPTION

• Accurate and Efficient Control of

Battery Charging

The UC3909 family of Switchmode Lead-Acid Battery Chargers accurately

controls lead acid battery charging with a highly efficient average current

mode control loop. This chip combines charge state logic with average cur-

rent PWM control circuitry. Charge state logic commands current or voltage

control depending on the charge state. The chip includes undervoltage

lockout circuitry to insure sufficient supply voltage is present before output

switching starts. Additional circuit blocks include a differential current sense

amplifier, a 1.5% voltage reference, a –3.9mV/°C thermistor linearization

circuit, voltage and current error amplifiers, a PWM oscillator, a PWM com-

parator, a PWM latch, charge state decode bits, and a 100mA open collec-

tor output driver.

• Average Current Mode Control from

Trickle to Overcharge

• Resistor Programmable Charge

Currents

• Thermistor Interface Tracks Battery

Requirements Over Temperature

• Output Status Bits Report on Four

Internal Charge States

• Undervoltage Lockout Monitors VCC

and VREF

BLOCK DIAGRAM

UDG-95007-1

Pin numbers refer to J, N, DW packages.

1/99

12 3 4 5 6 7...14

中文翻译

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型号	品牌	替代类型	描述	数据表
UC2909N	TI	完全替代	Switchmode Lead-Acid Battery Charger
UC3909NG4	TI	类似代替	Switchmode Lead-Acid Battery Charger
UC2909NG4	TI	功能相似	Switchmode Lead-Acid Battery Charger

型号	品牌	获取价格	描述	数据表
UC3909NG4	TI	获取价格	Switchmode Lead-Acid Battery Charger
UC3909Q	TI	获取价格	Switchmode Lead-Acid Battery Charger
UC3909QTR	ETC	获取价格	Battery Management
UC3910	TI	获取价格	4-Bit DAC and Voltage Monitor
UC3910D	ETC	获取价格	D/A CONVERTER
UC3910DG4	TI	获取价格	IC,D/A CONVERTER,SINGLE,4-BIT,BIPOLAR,SOP,16PIN
UC3910DTR	TI	获取价格	4-Bit DAC and Voltage Monitor
UC3910DTRG4	TI	获取价格	4-Bit DAC and Voltage Monitor 16-SOIC 0 to 70
UC3910N	TI	获取价格	4-Bit DAC and Voltage Monitor
UC3910NG4	TI	获取价格	4-Bit DAC and Voltage Monitor 16-PDIP 0 to 70