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規格書The UCC27516 and UCC27517 single-channel, high-speed, low-side gate driver devices can effectively drive MOSFET and IGBT power switches. Using a design that inherently minimizes shoot-through current, UCC27516 and UCC27517 can source and sink high peak-current pulses into capacitive loads offering rail-to-rail drive capability and extremely small propagation delay, typically 13 ns.
The UCC27516 and UCC27517 provides 4-A source, 4-A sink (symmetrical drive) peak-drive current capability at VDD = 12 V.
The UCC27516 and UCC27517 are designed to operate over a wide VDD range of 4.5 to 18 V and wide temperature range of –40°C to 140°C. Internal undervoltage lockout (UVLO) circuitry on the VDD pin holds output low outside VDD operating range. The capability to operate at low voltage levels such as below 5 V, along with best-in-class switching characteristics, is especially suited for driving emerging wide band-gap power-switching devices such as GaN power semiconductor devices.
The UCC27516 and UCC27517 devices feature a dual-input design which offers flexibility of implementing both inverting (IN– pin) and noninverting (IN+ pin) configurations with the same device. Either the IN+ or IN– pin can be used to control the state of the driver output. The unused input pin can be used for enable and disable function. For safety purpose, internal pullup and pulldown resistors on the input pins ensure that outputs are held low when input pins are in floating condition. Hence the unused input pin is not left floating and must be properly biased to ensure that driver output is in enabled for normal operation.
The input pin threshold of the UCC27516 and UCC27517 devices are based on TTL and CMOS compatible low-voltage logic which is fixed and independent of the VDD supply voltage. Wide hysteresis between the high and low thresholds offers excellent noise immunity.
德克萨斯仪器ucc27517dbvr
的ucc27516和ucc27517单通道，高速，低侧栅极驱动器装置能够有效地驱动MOSFET和IGBT功率开关。使用的设计，本质上减少直通电流，ucc27516和ucc27517能源和汇高峰值脉冲电流为容性负载驱动能力提供铁路轨道和非常小的传播延迟，通常为13纳秒。
的ucc27516和ucc27517提供4源，4沉（对称驱动）峰值驱动电流能力在VDD = 12 V。
的ucc27516和ucc27517是设计运行在一个4.5宽VDD范围为18 V和40–°C温度范围宽140°C.内部欠压锁定（UVLO）在VDD引脚电路将输出低VDD操作范围之外。在低电压下工作的能力，如低于5 V，以及一流的开关特性，特别适合用于驱动新出现的宽带隙功率开关器件，如GaN功率半导体器件。
的ucc27516和ucc27517器件具有双输入设计提供实现逆变的灵活性（在–引脚）和同相（+销）具有相同的设备配置。无论是IN +或IN -引脚可以用来控制驱动器输出的状态。未使用的输入引脚可用于启用和禁用功能。为安全起见，在输入引脚内部上拉和下拉电阻确保输出低电平，输入引脚在漂浮状态。因此，未使用的输入引脚不会悬空，必须适当偏置，以确保驱动器输出处于正常工作状态。
该ucc27516和ucc27517器件的输入引脚的阈值是基于TTL和CMOS兼容低压逻辑是固定的和独立的电源电压VDD。高阈值和低阈值之间的宽滞后提供了极好的抗噪声能力。
