Controller 5V to 36V 80Pin LQFP T/R
Product Details
The AD8451 is a precision analog front end and controller for testing and monitoring battery cells. A precision fixed gain instrumentation amplifier IA measures the battery charge/discharge current, and a fixed gain difference amplifier DA measures the battery voltage. Internal laser trimmed resistor networks set the gains for the IA and the DA, optimizing the performance of the AD8451 over the rated temperature range. The IA gain is 26 and the DA gain is 0.8.
Voltages at the ISET and VSET inputs set the desired constant current CC and constant voltage CV values. CC to CV switching is automatic and transparent to the system.
A TTL logic level input, MODE, selects the charge or discharge mode high for charge, low for discharge. An analog output, VCTRL, interfaces directly with the Analog Devices, Inc., ADP1972 PWM controller.
The AD8451 simplifies designs by providing excellent accuracy, performance over temperature, flexibility with functionality, and overall reliability in a space-saving package. The AD8451 is available in an 80-lead, 14 mm × 14 mm × 1 mm LQFP package and is rated for an operating temperature of −40°C to +85°C.
**APPLICATIONS**
### Features and Benefits
Current sense gain: 26 V/V typ
Voltage sense gain: 0.8 V/V typ
0.9 μV/°C
108 dB minimum
通道数 2
共模抑制比 110 dB
输入电容 4.00 pF
增益频宽积 20.0 MHz
输入阻抗 100 GΩ
工作温度Max 85 ℃
工作温度Min -40 ℃
安装方式 Surface Mount
引脚数 80
封装 LQFP-80
封装 LQFP-80
产品生命周期 Active
包装方式 Tape & Reel TR
制造应用 Battery Testing and Formation, Instrumentation and Measurement
RoHS标准 RoHS Compliant
含铅标准 Contains Lead
军工级 Yes
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
AD8451ASTZ-RL ADI 亚德诺 | 当前型号 | 当前型号 |
AD8451ASTZ 亚德诺 | 完全替代 | AD8451ASTZ-RL和AD8451ASTZ的区别 |