- 您现在的位置：买卖IC网 > PDF目录1809 > IR3521MTRPBF (International Rectifier)IC CTRL XPHASE3 SVID 32-MLPQ PDF资料下载
参数资料
| 型号： | IR3521MTRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 23/45页 |
| 文件大小： | 0K |
| 描述： | IC CTRL XPHASE3 SVID 32-MLPQ |
| 标准包装： | 3,000 |
| 系列： | XPhase3™ |
| 应用： | 处理器 |
| 电流 - 电源： | 10mA |
| 电源电压： | 4.75 V ~ 7.5 V |
| 工作温度： | 0°C ~ 100°C |
| 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： | 带卷 (TR) |
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页第17页第18页第19页第20页第21页第22页当前第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页第42页第43页第44页第45页
IR3521
Figure 14 VCCL regulator stability with 5 phases and PHSOUT equals 750 kHz
VCCL Under Voltage Lockout (UVLO)
The IR3521 does not directly monitor VCC for under voltage lockout but instead monitors the system VCCL supply
voltage since this voltage is used for the gate drive. As VCC begins to rise during power up, the VCCLDRV pin will
be high impedance therefore allowing VCCL to roughly follow VCC-NPN VBE until VCCL is above 94% of the voltage
set by resistor divider at VCCLFB pin. At this point, the OV X and UV CLEARED fault latches will be released. If
VCCL voltage drops below 86% of the set value, the SS/DEL CLEARED fault latch will be set.
VID OFF Codes
SVID OFF codes of 111_1100, 111_1101, 111_1110, and 111_1111 turn off the converter by pulling down EAOUT X
voltage and discharging SS/DEL X through the 50uA discharge current, but do not drive PGOOD low. Upon receipt
of a non-off SVID code the converter will turn on and transition to the voltage represented by the SVID as shown in
Figure 10.
Power Good (PGOOD)
The PGOOD pin is an open-collector output and should have an external pull-up resistor. During soft start, PGOOD
remains low until the output voltage is in regulation and SS/DEL X is above 3.9V. The PGOOD pin becomes low if
ENABLE is low, VCCL is below 86% of target, an over current condition occurs for at least 1024 PHSOUT clocks
prior to PGOOD, an over current condition occurs after PGOOD and SS/DEL X discharges to the delay threshold, an
open phase timing daisy chain condition occurs, VOSNS lines are detected open, VOUT X is 315mV below VDAC X ,
or if the error amp is sensed as operating open loop for 8 PHSOUT cycles. A high level at the PGOOD pin indicates
that the converter is in operation with no fault and ensures the output voltage is within the regulation.
PGOOD monitors the output voltage. If any of the voltage planes fall out of regulation, PGOOD will become low, but
the VR continues to regulate its output voltages. The PWROK input may or may not de-assert prior to the voltage
planes falling out of specification. Output voltage out of spec is defined as 315mV to 275mV below nominal voltage.
VID on-the-fly transition which is a voltage plane transitioning between one voltage associated with one VID code
and a voltage associated with another VID code is not considered to be out of specification.
A PWROK de-assert while ENABLE is high results in all planes regulating to the previously stored 2-bit Boot VID. If
the 2-bit Boot VID is higher than the VID prior to PWROK de-assertion, this transition will NOT be treated as VID on-
the-fly and if either of the two outputs is out of spec high, PGOOD will be pulled down.
Page 23
V3.03
相关PDF资料 |
PDF描述 |
|---|---|
| IR3522MTRPBF | IC CTRL XPHASE3 DDR/VVT 32-MLPQ |
| IR3523MTRPBF | IC XPHASE3 CTLR VR11.1 40-MLPQ |
| IR3527MTRPBF | IC CTRL XPHASE3 DUAL 24-MLPQ |
| IR3529MTRPBF | IC CTRL XPHASE CPU/ASIC 20-MLPQ |
| IR3550MTRPBF | IC DRIVER GATE 60A PQFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IR3522 | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM DDR & VTT CONTROL IC |
| IR3522MPBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM DDR & VTT CONTROL IC |
| IR3522MTRPBF | 功能描述:开关变换器、稳压器与控制器 X-PHASE IR3522 AMD SVID CTRL IC 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 |
| IR3523 | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM DUAL OUTPUT CONTROL IC |
| IR3523MPBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM DUAL OUTPUT CONTROL IC |
发布紧急采购，3分钟左右您将得到回复。