参数资料
型号: IR3510MPBF
厂商: International Rectifier
文件页数: 22/36页
文件大小: 0K
描述: IC XPHASE CONTROL 32-MLPQ
标准包装: 100
系列: XPhase™
应用: 处理器
安装类型: 表面贴装
封装/外壳: 32-VFQFN 裸露焊盘
供应商设备封装: 32-MLPQ(5x5)
包装: 剪切带 (CT)
starts the 2
soft-start cycle.
IR3510
Figure 9 depicts the start-up sequence of the voltage regulator. If there is no fault, the SS pin will start charging
when the enable crosses the threshold. The current error amplifier output EAOUT is clamped low until SS
reaches 1.35V. The error amplifier will then regulate the voltage regulator’s output voltage to match the SS
voltage less the 1.35V offset until the output reaches the set voltage. The SS voltage continues to increase until it
rises above 3.7V and allows the VRRDY signal to be asserted. SS finally settles at 3.8V, indicating the end of the
soft start.
12V IN
Enable
Input Fault Latch Q1
1.3V
Vss
UVLO2 Vth
P12V
VRM Fault Latch Q2
SS Discharge
VRRDY
OPEN-SENSE CHECK
EAOUT
Vout
Figure 9 Start-up sequence of converter
If a higher than the second enable threshold voltage is
applied to the “Enable” pin when the input FET is OFF, a
consecutive two-stage soft-start cycle is started. The
input FET is first turned on, and immediately follows the
soft-start of the voltage regulator, as seen in the Fig.10
waveform.
If the P12V takes longer time to ramp up than the soft-
start cap voltage in the first soft-start cycle, the soft-start
cap will hold its charge until the P12V voltage ramps up
across the UVLO threshold of P12V voltage, then it
nd
Fig. 10 Two-stage soft-start
Page 22 of 36
IR Confidential
May 18, 2009
相关PDF资料
PDF描述
IR3513ZMTRPBF IC CTRL XPHASE3 POL 32-MLPQ
IR3514MTRPBF IC XPHASE3 CONTROL HYBRD 40-MLPQ
IR3521MTRPBF IC CTRL XPHASE3 SVID 32-MLPQ
IR3522MTRPBF IC CTRL XPHASE3 DDR/VVT 32-MLPQ
IR3523MTRPBF IC XPHASE3 CTLR VR11.1 40-MLPQ
相关代理商/技术参数
参数描述
IR3510MTRPBF 功能描述:热插拔功率分布 HOT-SWAP N+1 XPHASE CTRL IC RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube
IR3513MTRPBF 功能描述:开关变换器、稳压器与控制器 2 CH OR 2 PHASE SYNC PWM CNTRLR RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel
IR3513XMTRPBF 功能描述:功率驱动器IC RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube
IR3513Z 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM POL CONTROL IC
IR3513ZMPBF 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM POL CONTROL IC