参数资料
型号: IR3502AMTRPBF
厂商: International Rectifier
文件页数: 18/38页
文件大小: 0K
描述: IC XPHASE CTRL VR11.0/1 32-MLPQ
标准包装: 1
系列: XPhase3™
应用: 处理器
电流 - 电源: 8mA
电源电压: 8 V ~ 16 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: 标准包装
其它名称: IR3502AMTRPBFDKR
IR3502A
VCC
(12V)
ENABLE
VID
1.1V
VDAC
4.0V
3.92V
3V
1.4V
SS/DEL
EAOUT
VOUT
VRRDY
START DELAY (TD1)
SOFT START
TIME (TD2)
VID SAMPLE
TIME (TD3)
VRRDY DELAY
TIME (TD4+TD5)
NORMAL OPERATION
TD4
TD5
Figure 9 Start-up sequence of converter with boot voltage
Current Monitor (IMON)
The control IC generates a current monitor signal IMON using the VDRP voltage and the VDAC reference, as
shown in Figure 10. This voltage is thermally compensated for the inductor DCR variation. The voltage at this pin
reports the average load current information without being referenced to VDAC. The slope of the IMON signal with
respect to the load current can be adjusted with the resistors RTCMP2 and RTCMP3. The IMON signal is clamped
at 1.03V in order to facilitate direct interfacing with the CPU.
Control IC
VDAC
Buffer
+
VDAC
-
100k
200k
-
VDRP
Buffer
Thermal
Comp
+
IIN
From Phase ICs
RTCMP1
RTHERM
Amplifier
+
VDRP
-
RTCMP2
VN
RTCMP3
DAC_BUFF
200k
200k
VDRP
200k
-
+
1.03
0
IMON
50mV
200k
Figure 10 Current report signal (IMON) implementation
Page 18 of 38
December 17, 2009
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IR3502B 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM CONTROL IC
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IR3502MPBFTR 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE3TM CONTROL IC
IR3502MTRPBF 功能描述:开关变换器、稳压器与控制器 COMPLETE VR11.0 OR VR11.1 PWR SOLUTION 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