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参数资料
| 型号： | IR3092MPBF |
| 厂商： | International Rectifier |
| 文件页数： | 20/37页 |
| 文件大小： | 0K |
| 描述： | IC VID VOLTAGE PROGRAMMER 48MLPQ |
| 标准包装： | 100 |
| 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： | 剪切带 (CT) |
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IR3092PbF
Soft-start delay time t SSDEL is the time to charge SS/DEL up to 1.3V. After this the error amplifier output is released to
allow the soft start. The soft start time t SS represents the time during which converter voltage rises from zero to V O. t SS
can be programmed by C SS using equation (4).
C SS
I CHG * t SS
V O
55 * 10 6 * t SS
V O
(4)
Once C SS is chosen, the soft start delay time t SSDEL, the over-current fault latch delay time t OCDEL , and the delay time
t VccPG from output voltage (V O ) in regulation to Power Good are fixed and shown in equation (5), (6) and (7) respectively.
t SSDEL
t OCDEL
t VccPG
C SS * ' V
I CHG
C SS * ' V
I DISCHG
C SS * ' V
I CHG
C SS * 1. 3
55 * 10 6
C SS * 0 .25
50 . 5 * 10 6
C SS * ( 3. 75 V O 1 .3)
55 * 10 6
(5)
(6)
(7)
Over Current Protection (OCP)
The current limit threshold is set by a resistor connected between the OCSET and VDAC pins. If the average Current
Sense Amplifier output plus VDAC voltage exceeds the OCSET voltage, the over-current protection is triggered.
A delay is included if an over-current condition occurs after a successful soft-start sequence. This is required since over-
current conditions can occur as part of normal operation due to load transients or VID transitions. If an over-current fault
occurs during normal operation, the Over Current Comparator will initiate the discharge of the capacitor at SS/DEL but
will not set the fault latch immediately. If the over-current condition persists long enough for the SS/DEL capacitor to
discharge below the 250mV offset of the delay comparator, the Fault latch will be set pulling the Error Amplifier ’s output
low inhibiting switching in the phase ICs and de-asserting the PWRGD signal. See Soft Start, Over-Current Fault Delay,
and Hiccup Mode.
The inductor DC resistance R L is utilized to sense the inductor current. I LIMIT is the required over current limit. I OCSET, the
bias current of OCSET pin, is set by R ROSC and is also determined by the curve in the Typical Operating Characteristics.
R OCSET is defined in the following Equation (8).
R OCSET
(
I LIMIT
2
Vo ( Vin Vo )
2 L Vin * fsw
) R L 23 . 5 / I OCSET
(8)
Page 20 of 37
09/07/05
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| IR3092MTR | 功能描述:IC CONTROLLER 2PHASE 48-MLPQ RoHS:否 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) |
| IR3092MTRPBF | 功能描述:IC CONTROLLER 2PHASE 48-MLPQ 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) |
| 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 |
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