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ADP3810AR-8.4-REEL PDF预览

ADP3810AR-8.4-REEL

更新时间： 2024-01-08 20:05:17
品牌 Logo 应用领域
亚德诺 - ADI 光电二极管
页数 文件大小 规格书
16页 456K
描述
IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, SOIC-8, Power Management Circuit

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ADP3810AR-8.4-REEL 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：SOIC包装说明：SOP,
针数：8Reach Compliance Code：unknown
风险等级：5.9可调阈值：NO
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：R-PDSO-G8
JESD-609代码：e0长度：4.9 mm
湿度敏感等级：NOT SPECIFIED信道数量：1
功能数量：1端子数量：8
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：NOT SPECIFIED座面最大高度：1.75 mm
最大供电电压 (Vsup)：16 V最小供电电压 (Vsup)：2.7 V
标称供电电压 (Vsup)：10 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：TIN LEAD
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3.9 mmBase Number Matches：1

ADP3810AR-8.4-REEL 数据手册

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Secondary Side, Off-Line  
Battery Charger Controllers  
a
ADP3810/ADP3811  
FEATURES  
off-line applications, the output directly drives the diode side of  
an optocoupler to give isolated feedback control of a primary  
side PWM. The circuitry includes two gain (gm) stages, a preci-  
sion 2.0 V reference, a control input buffer, an Undervoltage  
Lock Out (UVLO) comparator, an output buffer and an over-  
voltage comparator.  
Programmable Charge Current  
High Precision Battery Voltage Limit  
Precision 2.000 V Reference  
Low Voltage Drop Current Sense: 300 mV Full Scale  
Full Operation in Shorted and Open Battery Conditions  
Drives Diode-Side of Optocoupler  
Wide Operating Supply Range: 2.7 V to 16 V  
Undervoltage Lockout  
SO-8 Package  
ADP3810  
Internal Precision Voltage Divider for Battery Sense  
Four Final Battery Voltage Options Available: 4.2 V,  
8.4 V, 12.6 V, 16.8 V  
The current limit amplifier senses the voltage drop across an  
external sense resistor to control the average current for charg-  
ing a battery. The voltage drop can be adjusted from 25 mV  
to 300 mV, giving a charging current limit from 100 mA to  
1.2 amps with a 0.25 Ω sense resistor. An external dc voltage  
on the VCTRL input sets the voltage drop. Because this input  
is high impedance, a filtered PWM output can be used to set  
the voltage.  
ADP3811  
As the battery voltage approaches its voltage limit, the voltage  
sense amplifier takes over to maintain a constant battery volt-  
age. The two amplifiers essentially operate in an “OR” fash-  
ion. Either the current is limited, or the voltage is limited.  
Adjustable Final Battery Voltage  
APPLICATIONS  
Battery Charger Controller for:  
LiIon Batteries (ADP3810)  
NiCad, NiMH Batteries (ADP3811)  
The ADP3810 has internal thin-film resistors that are trimmed  
to provide a precise final voltage for LiIon batteries. Four volt-  
age options are available, corresponding to 1-4 LiIon cells as  
follows: 4.2 V, 8.4 V, 12.6 V and 16.8 V.  
GENERAL DESCRIPTION  
The ADP3810 and ADP3811 combine a programmable current  
limit with a battery voltage limit to provide a constant current,  
constant voltage battery charger controller. In secondary side,  
The ADP3811 omits these resistors allowing any battery volt-  
age to be programmed with external resistors.  
FUNCTIONAL BLOCK DIAGRAM  
V
V
V
V
CC  
REF  
SENSE  
R1  
GND  
CS  
ADP3810  
ONLY  
UVLO  
UVLO  
1.5MΩ  
80kΩ  
V
REF  
V
REF  
R2  
V
CTRL  
ADP3810/  
ADP3811  
GM1  
GM2  
UVLO  
GM  
COMP  
OUT  
REV. 0  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, nor for any infringements of patents or other rights of third parties  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 617/329-4700  
Fax: 617/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 1996  
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