DC/DC转换器和控制器

如果您对该产品感兴趣的话,可以 sendmsg
产品名称: DC/DC转换器和控制器
产品型号: XC9519
产品展商: TOREX
    库存:
相关下载:
会员价格: 0.00 元
产品文档: 无相关文档

简单介绍

DC/DC转换器和控制器 The XC9519 series is a 2 channel (step-up and inverting) DC/DC converter IC. One DC/DC converter is a step-up DC/DC and the other is an inverting DC/DC converter.


DC/DC转换器和控制器  的详细介绍
DC/DC转换器和控制器

电路框图

概要

The XC9519 series is a 2 channel (step-up and inverting) DC/DC converter IC. One DC/DC converter is a step-up DC/DC and the other is an inverting DC/DC converter. The step-up converter compares a built-in reference voltage 1.0V to the FBP voltage (accuracy ±1.5%) and a positive output voltage can be set freely with the external components up to 18V. The inverting DC/DC converter compares a difference between a reference voltage and the FBN voltage (accuracy ±1.5%) to the GND, then a negative output voltage can be set until -15V with the external components. ,With a 1.2MHz frequency, the size of the external components can be reduced. As for operation mode, the device can be selected to use PWM control or automatic PWM/PFM switching control by the MODE pin. In the automatic PWM/PFM switching control mode, control switches from PWM to PFM during light loads. The series is highly efficient from light loads through to large output currents. In the PWM control mode, noise is easily reduced since the frequency is fixed. The control mode can be selected for each application. The soft start and current control functions are internally optimized. During stand-by, all circuits in the IC are shutdown to reduce current consumption to as low as 1.0μA or less. The device includes a gate control pin for the P-channel MOSFET which is used for a load disconnection at the stand-by mode. The GAINP and GAINN pins are used for loop compensation in order to optimize load transient response. With the built-in UVLO (Under Voltage Lock Out) function, the internal driver transistor is forced OFF when input voltage becomes 2.2V or lower.

特点

Input Voltage 2.7V ~ 5.5V
Output Current 500mA @VIN=3.7V, VOUTP=5.0V, VOUTN=-5.0V
Positive Output Voltage 4.0V ~ 18.0V(accuracy±1.5% @25℃)
Negative Output Voltage -15.0V ~ -4.0V(accuracy±1.5% @25℃)
Oscillation Frequency 1.2MHz
Soft-Start Circuit Built-In Step-up DC/DC converter 2.5ms(TYP.),Inverting DC/DC converter 2.2ms(TYP.)
Protection Circuits Over Current Limit (Integral Latching),Short Protection Latching,UVLO,Thermal Shutdown,Over Voltage Protection
Function Addition Control Pin,Load disconnect Pin,Phase Compensation Pin,Ceramic Capacitor Compatible
Operating Ambient Temperature -40〜+85℃
Package QFN-24
Environmentally Friendly EU RoHS Compliant, Pb Free
产品留言
标题
联系人
联系电话
内容
验证码
点击换一张
注:1.可以使用快捷键Alt+S或Ctrl+Enter发送信息!
2.如有必要,请您留下您的详细联系方式!

粤公网安备 44030402001633号