电压模式脉宽调制控制CXSD62397快速瞬态响应同步整流buck拓扑中驱动两个N通道mosfet大功率DC转换器恒定300kHz开关频率

The CXSD62397 provides complete control and protection for a DC-DC converter for high power applications. It is designed to drive two N-channel MOSFETs in a synchronous-rectified buck topology. The CXSD62397 integrates all of the control, bootstrap diode and protection functions into a single package. The CXSD62397 provides simple, single feedback loop, voltage-mode control with fast transient response. It includes a 300kHz free-running triangle-wave oscillator. The error amplifier features a 15MHz gain-bandwidth product which provides high converter bandwidth for fast transient performance. The resulting PWM duty ratio ranges from 0% to 80%. The reference voltage is 0.8V, 2% accuracy. The CXSD62397 has internal soft start and executes cycle-by-cycle current limit during soft start interval. The CXSD62397 monitors the current by using the RDS(ON) of the low-side MOSFET which eliminates the need for a current sensing resistor. The under-voltage protection function monitors voltage at FB pin. The over-current and under-voltage events after soft-start interval trigger hiccup mode protection.

产品特点 返回TOPFKh嘉泰姆

„ Drives Two N-Channel MOSFETs FKh嘉泰姆

„ Operates at 5V to 24V Supply Voltage FKh嘉泰姆

„ Internal Bootstrap Diode Circuit FKh嘉泰姆

„ Voltage-Mode PWM Control FKh嘉泰姆

„ Fast Transient Response FKh嘉泰姆

„ 0.8V, 2% Accuracy Reference Voltage FKh嘉泰姆

„ Internal Soft Start FKh嘉泰姆

„ Constant 300kHz Switching Frequency FKh嘉泰姆

„ Over-Current Fault Monitors by Using Low-Side MOSFET RDS(ON) FKh嘉泰姆

„ Output Under-Voltage ProtectionFKh嘉泰姆

应用范围 返回TOPFKh嘉泰姆

„ 16V to 30V Input High Power DC-DC Regulators FKh嘉泰姆

„ Low-Voltage Distributed Power SuppliesFKh嘉泰姆

技术规格书（产品PDF) 返回TOP FKh嘉泰姆

需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！FKh嘉泰姆

QQ截图20160419174301.jpg FKh嘉泰姆

产品封装图 返回TOPFKh嘉泰姆

FKh嘉泰姆

电路原理图 返回TOPFKh嘉泰姆

FKh嘉泰姆

FKh嘉泰姆

Synchronous Step Down ControllerFKh嘉泰姆
Part NO.FKh嘉泰姆	Vin(V)FKh嘉泰姆 minFKh嘉泰姆	Vin(V)FKh嘉泰姆 maxFKh嘉泰姆	IOUTFKh嘉泰姆 (A)FKh嘉泰姆	FSWFKh嘉泰姆 (kHz)FKh嘉泰姆	FBFKh嘉泰姆 (V)FKh嘉泰姆	DutyFKh嘉泰姆 max(%)FKh嘉泰姆	VOUTFKh嘉泰姆 (ms)FKh嘉泰姆	NoteFKh嘉泰姆	PackageFKh嘉泰姆
CXSD62393FKh嘉泰姆	2.5FKh嘉泰姆	5.5FKh嘉泰姆	--FKh嘉泰姆	300FKh嘉泰姆	1FKh嘉泰姆	100FKh嘉泰姆	15FKh嘉泰姆	EXT, VDD, GND, CE, FB, Voltage ModeFKh嘉泰姆	SOT-23-5FKh嘉泰姆
CXSD62394FKh嘉泰姆	5FKh嘉泰姆	12FKh嘉泰姆	OCSETFKh嘉泰姆	300FKh嘉泰姆	0.8FKh嘉泰姆	--FKh嘉泰姆	14FKh嘉泰姆	BST, DH, GND, DL, VCC, FB, OC, LXFKh嘉泰姆	SOP-8FKh嘉泰姆
CXSD62395FKh嘉泰姆	--FKh嘉泰姆	24FKh嘉泰姆	OCSETFKh嘉泰姆	300FKh嘉泰姆	0.8FKh嘉泰姆	--FKh嘉泰姆	8FKh嘉泰姆	BST, DH, GND, DL, VCC, FB, OC, LXFKh嘉泰姆	SOP-8FKh嘉泰姆
CXSD62396FKh嘉泰姆	10FKh嘉泰姆	28FKh嘉泰姆	--FKh嘉泰姆	400FKh嘉泰姆	0.8FKh嘉泰姆	80FKh嘉泰姆	3FKh嘉泰姆	VCC, DL, GND, DH, BST, LX, VIN, FBFKh嘉泰姆	TSOT-23-8FKh嘉泰姆
CXSD62397FKh嘉泰姆	5FKh嘉泰姆	23FKh嘉泰姆	OCSETFKh嘉泰姆	400FKh嘉泰姆	0.8FKh嘉泰姆	80FKh嘉泰姆	8FKh嘉泰姆	DH, LX, DL, GND, FB, OC, VCC, BSTFKh嘉泰姆	SOP-8FKh嘉泰姆
CXSD62398FKh嘉泰姆	4.5FKh嘉泰姆	27FKh嘉泰姆	RSENSEFKh嘉泰姆	ADJFKh嘉泰姆	0.7FKh嘉泰姆	93FKh嘉泰姆	ADJFKh嘉泰姆	Asynchronous Voltage Mode ControllerFKh嘉泰姆	MSOP-10(FD)FKh嘉泰姆