TPS2051BDGNR主要特性如下:
70-mΩ High-Side MOSFET
500-mA Continuous Current
Thermal and Short-Circuit Protection
Accurate Current Limit
(0.75 A Minimum, 1.25 A Maximum)
Operating Range: 2.7 V to 5.5 V
0.6-ms Typical Rise Time
Undervoltage Lockout
Deglitched Fault Report (OC)
No OC Glitch During Power Up
Maximum Standby Supply Current:
1-µA (Single, Dual) or 2-µA (Triple, Quad)
Ambient Temperature Range: –40°C to 85°C
UL Recognized, File Number E169910
Additional UL Recognition for TPS2042B and TPS2052B for Ganged Configuration
主要终端应用：
3D 打印机
AC Drive Main Power Supply
AC Drive Position Feedback
CNC 驱动器
HVAC 网关
Human Machine Interface (HMI): Panel PLC
PLC 控制器
Servo Drive Energy Recovery
交流逆变器和 VF 驱动器
伺服驱动器和运动控制
位置编码器和解析器
便携式媒体播放器
保护继电器 - 间隔控制
冰箱和冰柜
制造机器人
平板电脑：企业
建筑设备 - 逆变器
打印机
数字标牌
数码相框 (DPF)
无线控制
洗衣机和干衣机
用于 HMI 和 POS 的单板计算机
电网通信基础设施 - 数据集中器
电网通信模块 - 无线通信
电网通信模块 - 电力线通信
自动化机械：CNC 控制
自动化机械：机器人控制，CPU 电路板
软件无线电 (SDR)
通信模块
产品描述：
The TPS20xxB power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices incorporates 70-mΩ N-channel MOSFET power switches for power-distribution systems that require multiple power switches in a single package. Each switch is controlled by a logic enable input. Gate drive is provided by an internal charge pump designed to control the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V.
When the output load exceeds the current-limit threshold or a short is present, the device limits the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low. When continuous heavy overloads and short circuits increase the power dissipation in the switch, causing the junction temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures that the switch remains off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1 A (typical).
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