参数资料
型号: IR3092MTRPBF
厂商: International Rectifier
文件页数: 13/37页
文件大小: 0K
描述: IC CONTROLLER 2PHASE 48-MLPQ
标准包装: 3,000
应用: VID 电压编程器
电源电压: 7.3 V ~ 21 V
电流 - 电源: 29mA
工作温度: 0°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 48-MLPQ
供应商设备封装: 48-MLPQ(7x7)
包装: 带卷 (TR)
IR3092PbF
CLK1
PULSE
EAOUT
PWM
Ramp1
GATEH1
GATEL1
0.7V
0.6V
STEADY-STATE
OPERATION
DUTY CYCLE INCREASE
DUE TO LOAD
DUTY CYCLE DECREASE DUE TO LOAD
DECREASE (BODY BRAKING) OR FAULT
STEADY-STATE
OPERATION
INCREASE
Figure 4 – PWM Operating Waveforms
Current Sense Amplifier
A high speed differential current sense amplifier is shown in Figure 5. Its gain decreases with increasing temperature and
is nominally 24.5 at 25oC and 20 at 125oC (-1400 ppm/oC). This reduction of gain tends to compensate the 3850 ppm/oC
increase in inductor DCR. Since in most designs the IC junction is hotter than the inductors these two effects tend to
cancel such that no additional temperature compensation of the load line is required.
The current sense amplifier can accept positive differential input up to 75mV and negative up to -20mV before clipping.
The output of the current sense amplifier is summed with the DAC voltage which is used for over current protection,
voltage positioning and current sharing.
v L
CO
i L
CSA
L
R s
R L
C s
v c
V o
C o
Figure 5 – Inductor Current Sensing and Current Sense Amplifier
VCC Under Voltage Lockout (UVLO)
The VCC UVLO function monitors the VCC supply pin and ensures enough voltage is available to power the internal
circuitry. During power-up the fault latch is reset when VCC exceeds 7.8V and all other faults are cleared. The fault latch
is set when VCC drops below 7.3V, resulting in 500mV of nominal VCC hysteresis for powering up into a load.
5VUVL Under Voltage Lockout (5VUVL)
The 5VUVL function is provided for converters using a separate voltage supply other than VCC for gate driver bias. The
5VUVL comparator prevents operation by discharging SS/DEL and forcing EAOUT low. The 5VUVL comparator has an
OK threshold of 4.3V ensuring adequate gate drive voltage is present and a fault threshold of 4.125V.
Page 13 of 37
09/07/05
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IR3093M 制造商:IRF 制造商全称:International Rectifier 功能描述:3 PHASE OPTERON, ATHLON, OR VR10.X CONTROL IC
IR3093MPBF 功能描述:IC VID VOLTAGE PROGRAMMER 48MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 电源控制器,监视器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP(5x5) 包装:带卷 (TR)
IR3093MTR 制造商:IRF 制造商全称:International Rectifier 功能描述:3 PHASE OPTERON, ATHLON, OR VR10.X CONTROL IC
IR3093MTRPBF 功能描述:IC CTLR 3PHASE VR10 48-MLQP RoHS:是 类别:集成电路 (IC) >> PMIC - 电源控制器,监视器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:40-WFQFN 裸露焊盘 供应商设备封装:40-TQFN-EP(5x5) 包装:带卷 (TR)
IR3094MPBF 功能描述:IC REG CTRLR BUCK PWM VM 48MLPQ RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR)