双N通道mosfetCXSD6277/A/B车载直流-直流转换器低成本的同步降压调节器VCC和VC电源的上电复位POR外部可编程软启动检测到输出短路时锁定设备的电压检测

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发表时间：2020-04-21浏览次数：206

双N通道mosfetCXSD6277/A/B车载直流-直流转换器低成本的同步降压调节器VCC和VC电源的上电复位POR外部可编程软启动检测到输出短路时锁定设备的电压检测

目录97T嘉泰姆

1.产品概述         2.产品特点
3.应用范围       4.下载产品资料PDF文档
5.产品封装图                     6.电路原理图
7.功能概述       8.相关产品

一,产品概述(General Description) 97T嘉泰姆

The CXSD6277/A/B series are designed to provide a low cost synchronous97T嘉泰姆
Buck regulator for on-board DC to DC con-verter applications. The CXSD6277/A/B97T嘉泰姆
series together with dual N-channel MOSFETs , provide a97T嘉泰姆
low cost solution for such applications. Each device fea-tures an internal97T嘉泰姆
200/400kHz oscillator, Power-On-Reset (POR) for both VCC and VC supplies,97T嘉泰姆
an external pro-grammable soft-start function as well as output under-97T嘉泰姆
voltage detection that latches off the device when an out-put short is detected.97T嘉泰姆
二.产品特点(Features)97T嘉泰姆

1.)Operating with Single 5V or 12V Input97T嘉泰姆
2.)Drives N-Channel MOSFETs97T嘉泰姆
3.)Simple Single-Loop Control Design97T嘉泰姆
Voltage-Mode PWM Control97T嘉泰姆
Full 0% to 100% Duty Ratio97T嘉泰姆
Fast Transient Response97T嘉泰姆
4.)±2% Output Voltage Accuracy Over Temperature97T嘉泰姆
5.)Under-Voltage Protection for Output97T嘉泰姆
6.)200/400kHz Constant Frequency Operation97T嘉泰姆
200kHz for CXSD6277/A/BB97T嘉泰姆
400kHz for CXSD6277/A/BA97T嘉泰姆
7.)Small size, 8-PIN Package (SOIC or TSSOP)97T嘉泰姆
8.)Lead Free and Green Devices Available (RoHS Compliant)97T嘉泰姆
三,应用范围 (Applications)97T嘉泰姆

Graphics Cards97T嘉泰姆
DDR Memory Power Supply97T嘉泰姆
DDR Memory Termination Voltage97T嘉泰姆
Low-Voltage Distributed Power Supplies97T嘉泰姆
四.下载产品资料PDF文档 97T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！97T嘉泰姆

QQ截图20160419174301.jpg 97T嘉泰姆

五,产品封装图 (Package)97T嘉泰姆
97T嘉泰姆
FB (Pin 1)97T嘉泰姆
Connect this pin to the output (VOUT) of the PWM con-verter via an external resistor divider to provide a voltage97T嘉泰姆
feedback path for the converter. The output voltage set by the resistor divider is determined using the following 97T嘉泰姆

for-where ROUT is the resistor connected from VOUT to FB, and RGND is the resistor connected from FB to 97T嘉泰姆

ground.The voltage at this pin is also monitored for Under-Volt-age protection.97T嘉泰姆
VCC (Pin 2)97T嘉泰姆
Connect this pin to input voltage from 5V to 20V. This pin provides the bias for the control circuitry and the 97T嘉泰姆

power MOSFET driver (LDRV). The voltage at this pin is monitored for Power-On-Reset (POR) purpose.97T嘉泰姆
LDRV (Pin 3)97T嘉泰姆
Connect this pin to the gate of the low-side power MOSFET. This pin provides the gate drive for the MOSFET.97T嘉泰姆
GND (Pin 4)97T嘉泰姆
Signal and power ground for the IC. All voltage levels are measured with respect to this pin.97T嘉泰姆
HDRV (Pin 5)97T嘉泰姆
Connect this pin to the gate of the high-side power MOSFET. This pin provides the gate drive for the MOSFET.97T嘉泰姆
VC (Pin 6)97T嘉泰姆
This pin provides bias voltage to the high-side MOSFET driver. A bootstrap circuit may be used to pump a boot97T嘉泰姆
voltage for enforcing the driving capability of the gate driver and improving the performance of the MOSFET.97T嘉泰姆
COMP (Pin 7)97T嘉泰姆
This pin is the output of the error amplifier. Add an exter-nal resistor-capacitor network to provide a loop compen-97T嘉泰姆
sation for the PWM converter.97T嘉泰姆

SS (Pin 8)97T嘉泰姆
Connect a capacitor from this pin to ground.This capacitor,along with an internal 20μA current source, sets the soft-97T嘉泰姆
start interval of the PWM converter and prevents the out-puts from overshoot as well as limits the input current.97T嘉泰姆

Pull this pin below 0.5V can shutdown the converter.97T嘉泰姆
六.电路原理图97T嘉泰姆

97T嘉泰姆
七,功能概述97T嘉泰姆

Profile Feature97T嘉泰姆	Sn-Pb Eutectic Assembly97T嘉泰姆	Pb-Free Assembly97T嘉泰姆
Average ramp-up rate97T嘉泰姆 (TL to TP)97T嘉泰姆	3°C/second max.97T嘉泰姆	3°C/second max.97T嘉泰姆
Preheat97T嘉泰姆 - Temperature Min (Tsmin)97T嘉泰姆 - Temperature Max (Tsmax)97T嘉泰姆 - Time (min to max) (ts)97T嘉泰姆	100°C97T嘉泰姆 150°C97T嘉泰姆 60-120 seconds97T嘉泰姆	150°C97T嘉泰姆 200°C97T嘉泰姆 60-180 seconds97T嘉泰姆
Time maintained above:97T嘉泰姆 - Temperature (TL)97T嘉泰姆 - Time (tL)97T嘉泰姆	183°C97T嘉泰姆 60-150 seconds97T嘉泰姆	217°C97T嘉泰姆 60-150 seconds97T嘉泰姆
Peak/Classification Temperature (Tp)97T嘉泰姆	See table 197T嘉泰姆	See table 297T嘉泰姆
Time within 5°C of actual97T嘉泰姆 Peak Temperature (tp)97T嘉泰姆	10-30 seconds97T嘉泰姆	20-40 seconds97T嘉泰姆
Ramp-down Rate97T嘉泰姆	6°C/second max.97T嘉泰姆	6°C/second max.97T嘉泰姆
Time 25°C to Peak Temperature97T嘉泰姆	6 minutes max.97T嘉泰姆	8 minutes max.97T嘉泰姆

八,相关产品 更多同类产品...... 97T嘉泰姆

Switching Regulator > Buck Controller97T嘉泰姆
Part_No 97T嘉泰姆	Package 97T嘉泰姆	Archi97T嘉泰姆 tectu97T嘉泰姆	Phase97T嘉泰姆	No.of97T嘉泰姆 PWM97T嘉泰姆 Output97T嘉泰姆	Output 97T嘉泰姆 Current97T嘉泰姆 (A) 97T嘉泰姆	Input97T嘉泰姆 Voltage (V) 97T嘉泰姆		Reference97T嘉泰姆 Voltage97T嘉泰姆 (V) 97T嘉泰姆	Bias 97T嘉泰姆 Voltage97T嘉泰姆 (V) 97T嘉泰姆	Quiescent97T嘉泰姆 Current97T嘉泰姆 (uA) 97T嘉泰姆
Part_No 97T嘉泰姆	Package 97T嘉泰姆	Archi97T嘉泰姆 tectu97T嘉泰姆	Phase97T嘉泰姆	No.of97T嘉泰姆 PWM97T嘉泰姆 Output97T嘉泰姆	Output 97T嘉泰姆 Current97T嘉泰姆 (A) 97T嘉泰姆	min97T嘉泰姆	max97T嘉泰姆	Reference97T嘉泰姆 Voltage97T嘉泰姆 (V) 97T嘉泰姆	Bias 97T嘉泰姆 Voltage97T嘉泰姆 (V) 97T嘉泰姆	Quiescent97T嘉泰姆 Current97T嘉泰姆 (uA) 97T嘉泰姆
CXSD627397T嘉泰姆	SOP-1497T嘉泰姆 QSOP-1697T嘉泰姆 QFN4x4-1697T嘉泰姆	VM 97T嘉泰姆	1 97T嘉泰姆	1 97T嘉泰姆	3097T嘉泰姆	2.9 97T嘉泰姆	13.297T嘉泰姆	0.997T嘉泰姆	12 97T嘉泰姆	800097T嘉泰姆
CXSD627497T嘉泰姆	SOP-897T嘉泰姆	VM 97T嘉泰姆	197T嘉泰姆	197T嘉泰姆	2097T嘉泰姆	2.9 97T嘉泰姆	13.2 97T嘉泰姆	0.897T嘉泰姆	1297T嘉泰姆	500097T嘉泰姆
CXSD6274C97T嘉泰姆	SOP-897T嘉泰姆	VM97T嘉泰姆	197T嘉泰姆	197T嘉泰姆	2097T嘉泰姆	2.997T嘉泰姆	13.297T嘉泰姆	0.897T嘉泰姆	1297T嘉泰姆	500097T嘉泰姆
CXSD627597T嘉泰姆	QFN4x4-2497T嘉泰姆	VM97T嘉泰姆	297T嘉泰姆	197T嘉泰姆	6097T嘉泰姆	3.197T嘉泰姆	13.297T嘉泰姆	0.697T嘉泰姆	1297T嘉泰姆	500097T嘉泰姆
CXSD627697T嘉泰姆	SOP-897T嘉泰姆	VM97T嘉泰姆	197T嘉泰姆	197T嘉泰姆	2097T嘉泰姆	2.297T嘉泰姆	13.297T嘉泰姆	0.897T嘉泰姆	5~1297T嘉泰姆	210097T嘉泰姆
CXSD6276A97T嘉泰姆	SOP-897T嘉泰姆	VM97T嘉泰姆	197T嘉泰姆	197T嘉泰姆	2097T嘉泰姆	2.297T嘉泰姆	13.297T嘉泰姆	0.897T嘉泰姆	5~1297T嘉泰姆	210097T嘉泰姆
CXSD6277/A/B97T嘉泰姆	SOP8\|TSSOP897T嘉泰姆	VM97T嘉泰姆	197T嘉泰姆	197T嘉泰姆	597T嘉泰姆	597T嘉泰姆	13.297T嘉泰姆	1.25\|0.897T嘉泰姆	5~1297T嘉泰姆	300097T嘉泰姆
CXSD627897T嘉泰姆	SOP-897T嘉泰姆	VM97T嘉泰姆	197T嘉泰姆	197T嘉泰姆	1097T嘉泰姆	3.397T嘉泰姆	5.597T嘉泰姆	0.897T嘉泰姆	597T嘉泰姆	210097T嘉泰姆
CXSD6279B97T嘉泰姆	SOP-1497T嘉泰姆	VM 97T嘉泰姆	197T嘉泰姆	197T嘉泰姆	1097T嘉泰姆	597T嘉泰姆	13.297T嘉泰姆	0.897T嘉泰姆	1297T嘉泰姆	200097T嘉泰姆
CXSD628097T嘉泰姆	TSSOP-2497T嘉泰姆 \|QFN5x5-3297T嘉泰姆	VM97T嘉泰姆	197T嘉泰姆	297T嘉泰姆	2097T嘉泰姆	597T嘉泰姆	13.297T嘉泰姆	0.697T嘉泰姆	5~1297T嘉泰姆	400097T嘉泰姆
CXSD6281N97T嘉泰姆	SOP1497T嘉泰姆 QSOP1697T嘉泰姆 QFN-1697T嘉泰姆	VM97T嘉泰姆	197T嘉泰姆	197T嘉泰姆	3097T嘉泰姆	2.997T嘉泰姆	13.297T嘉泰姆	0.997T嘉泰姆	1297T嘉泰姆	400097T嘉泰姆
CXSD628297T嘉泰姆	SOP-1497T嘉泰姆	VM97T嘉泰姆	197T嘉泰姆	197T嘉泰姆	3097T嘉泰姆	2.297T嘉泰姆	13.297T嘉泰姆	0.697T嘉泰姆	1297T嘉泰姆	500097T嘉泰姆
CXSD6282A97T嘉泰姆	SOP-1497T嘉泰姆	VM97T嘉泰姆	197T嘉泰姆	197T嘉泰姆	3097T嘉泰姆	2.297T嘉泰姆	13.297T嘉泰姆	0.697T嘉泰姆	1297T嘉泰姆	500097T嘉泰姆
CXSD628397T嘉泰姆	SOP-1497T嘉泰姆	VM97T嘉泰姆	197T嘉泰姆	197T嘉泰姆	2597T嘉泰姆	2.297T嘉泰姆	13.297T嘉泰姆	0.897T嘉泰姆	1297T嘉泰姆	500097T嘉泰姆
CXSD6284/A97T嘉泰姆	LQFP7x7 4897T嘉泰姆 TQFN7x7-4897T嘉泰姆	VM97T嘉泰姆	197T嘉泰姆	697T嘉泰姆	0.01597T嘉泰姆	1.497T嘉泰姆	6.597T嘉泰姆	-97T嘉泰姆	597T嘉泰姆	180097T嘉泰姆
CXSD628597T嘉泰姆	TSSOP-24P97T嘉泰姆	VM97T嘉泰姆	197T嘉泰姆	297T嘉泰姆	2097T嘉泰姆	2.9797T嘉泰姆	5.597T嘉泰姆	0.897T嘉泰姆	5~1297T嘉泰姆	500097T嘉泰姆
CXSD628697T嘉泰姆	SOP-1497T嘉泰姆	VM97T嘉泰姆	197T嘉泰姆	197T嘉泰姆	1097T嘉泰姆	597T嘉泰姆	13.297T嘉泰姆	0.897T嘉泰姆	1297T嘉泰姆	300097T嘉泰姆
CXSD628797T嘉泰姆	SOP-8-P\|DIP-897T嘉泰姆	VM97T嘉泰姆	197T嘉泰姆	197T嘉泰姆	3097T嘉泰姆	2.997T嘉泰姆	13.297T嘉泰姆	1.297T嘉泰姆	1297T嘉泰姆	300097T嘉泰姆
CXSD628897T嘉泰姆	SSOP2897T嘉泰姆 QFN4x4-2497T嘉泰姆	VM97T嘉泰姆	197T嘉泰姆	297T嘉泰姆	2097T嘉泰姆	597T嘉泰姆	2497T嘉泰姆	0.997T嘉泰姆	597T嘉泰姆	120097T嘉泰姆
CXSD628997T嘉泰姆	SOP-2097T嘉泰姆	VM97T嘉泰姆	197T嘉泰姆	297T嘉泰姆	2097T嘉泰姆	2.297T嘉泰姆	13.297T嘉泰姆

上一篇：CXSD6276A单电源电压5~12V两个电源电压驱动双低成本N通道mosfet自适应穿透保护内置反馈补偿电压型PWM控制 0~100%占空比快速瞬态响应

下一篇：大功率降压同步DC/DC控制器CXSD6278驱动外部N通道mosfet的300kHz恒频电压模式同步开关控制器。

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