- 您现在的位置：买卖IC网 > PDF目录384487 > IR3080MTR (International Rectifier) XPHASE VRD10 CONTROL IC WITH VCCVID & OVERTEMP DETECT PDF资料下载
参数资料
| 型号： | IR3080MTR |
| 厂商： | International Rectifier |
| 英文描述： | XPHASE VRD10 CONTROL IC WITH VCCVID & OVERTEMP DETECT |
| 中文描述： | XPHASE VRD10控制集成电路VCCVID |
| 文件页数： | 17/41页 |
| 文件大小： | 2267K |
| 代理商： | IR3080MTR |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页当前第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页
IR3080
The over-current delay can be reduced by adding a resistor in series with the SS/DEL capacitor. The delay
comparator’s offset voltage is reduced by the drop in the resistor caused by the discharge current. The value of the
series resistor should be 10K
or less to avoid interference with the soft start function.
If SS/DEL pin is pulled below 0.9V, the converter can be disabled.
VIDPGD
(VOUT CHANGES DUE TO
LOAD AND VID CHANGES)
OCP
DELAY
OCP THRESHOLD
1.3V
VCC
(12V)
NORMAL OPERATION
START-UP
(VCCVID GATES
FAULT MODE)
POWER-DOWN
(VCC GATES
FAULT MODE)
RE-START
AFTER OCP
HICCUP OVER-CURRENT
PROTECTION
1.1V
VIDPWR
(3.3V)
8.9V
UVLO
VCCVID
(1.2V)
VIDDEL
3.91V
3.91V
SS/DEL
PWRGD
VOUT
IOUT
Figure 11. Operating Waveforms
Under Voltage Lockout (UVLO)
The UVLO function monitors the IR3080’s VCC supply pin and ensures that IR3080 has a high enough voltage to
power the internal circuit. The IR3080’s UVLO is set higher than the minimum operating voltage of compatible
Phase ICs thus providing UVLO protection for them as well. During power-up the fault latch is reset when VCC
exceeds 9.1V and there is no other fault. If the VCC voltage drops below 8.9V the fault latch will be set. For
converters using a separate 5V supply for gate driver bias an external UVLO circuit can be added to prevent any
operation until adequate voltage is present. A diode connected between the 5V supply and the SS/DEL pin provides
a simple 5V UVLO function. UVLO of the VIDPWR input is provided by the VID Power Good function. Adequate
voltage must be present at VIDPWR pin to allow VCCVID to reach 1.1V.
Over Current Protection (OCP)
The current limit threshold is set by a resistor connected between the OCSET and VDAC pins. If the IIN pin voltage,
which is proportional to the average current plus DAC voltage, exceeds the OCSET voltage, the over-current
protection is triggered.
Page 17 of 41
9
/30/04
相关PDF资料 |
PDF描述 |
|---|---|
| IR3080M | XPHASE VRD10 CONTROL IC WITH VCCVID & OVERTEMP DETECT |
| IR3081 | XPHASE VR 10.0 CONTROL IC |
| IR3081M | XPHASE VR 10.0 CONTROL IC |
| IR3081MTR | XPHASE VR 10.0 CONTROL IC |
| IR3088A | XPHASETM PHASE IC WITH FAULT AND OVERTEMP DETECT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IR3080MTRPBF | 功能描述:开关变换器、稳压器与控制器 XPHASE VRD10 CTRL IC CTRL IC 200 to 700mV 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 |
| IR3080PBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASETM VRD10 CONTROL IC WITH VCCVID & OVERTEMP DETECT |
| IR3081 | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE VR 10.0 CONTROL IC |
| IR3081A | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASETM VR 10 CONTROL IC |
| IR3081AM | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASETM VR 10 CONTROL IC |
发布紧急采购，3分钟左右您将得到回复。