参数资料
型号: ISL6227CAZ-TS2698
厂商: Intersil
文件页数: 11/27页
文件大小: 0K
描述: IC CONTROLLER DDR, DDR2 28QSOP
标准包装: 2,500
应用: 控制器,DDR,DDR2
输入电压: 5 V ~ 28 V
输出数: 2
输出电压: 0.9 V ~ 5.5 V
工作温度: -10°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 28-SSOP(0.154",3.90mm 宽)
供应商设备封装: 28-SSOP/QSOP
包装: 带卷 (TR)
ISL6227
PG2/REF
This pin has a double function, depending on the mode of
operation.
When the chip is used as a dual channel PWM controller
(DDR = 0), the pin provides an open drain PGOOD2 function
for the second channel the same way as PG1. The pin is
pulled low when the second channel output is out of
-11% to +15% of the set value.
In DDR mode (DDR = 1), this pin is the output of the buffer
amplifier that takes VDDQ/2 voltage applied to OCSET2 pin
from the resister divider. It can source a typical 10mA
current.
OCSET2
In a dual channel application with DDR = 0, a resistor from
this pin to ground sets the overcurrent threshold for the
second channel controller. Its voltage is the buffered internal
0.9V reference.
In the DDR application with DDR = 1, this pin connects to the
center point of a resistor divider tracking the VDDQ/2. This
voltage is then buffered by an amplifier voltage follower and
sent to the PG2/REF pin. It sets the reference voltage of
Channel 2 for its regulation.
VCC
This pin powers the controller.
11
Typical Application
Figures 31 and 32 show the application circuits of a dual
channel DC/DC converter for a notebook PC.
The power supply in Figure 31 provides +2.5V and +1.8V
voltages for memory and the graphics interface chipset from
a +5.0VDC to a 28VDC battery voltage.
Figure 32 illustrates the application circuit for a DDR memory
power solution. The power supply shown in Figure 32
generates +2.5V VDDQ voltage from a battery. The +1.25V
VTT termination voltage tracks VDDQ/2 and is derived from
+2.5V VDDQ. To complete the DDR memory power
requirements, the +1.25V reference voltage is provided
through the PG2 pin.
FN9094.7
May 4, 2009
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ISL6227EVAL1 功能描述:EVALUATION BOARD 1 ISL6227 RoHS:否 类别:编程器,开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 传感器类型:CMOS 成像,彩色(RGB) 传感范围:WVGA 接口:I²C 灵敏度:60 fps 电源电压:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相关产品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP
ISL6227EVAL2 功能描述:EVALUATION BOARD 2 ISL6227 RoHS:否 类别:编程器,开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 传感器类型:CMOS 成像,彩色(RGB) 传感范围:WVGA 接口:I²C 灵敏度:60 fps 电源电压:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相关产品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP
ISL6227EVAL2Z 功能描述:EVAL BOARD ISL6227 RoHS:是 类别:编程器,开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 传感器类型:CMOS 成像,彩色(RGB) 传感范围:WVGA 接口:I²C 灵敏度:60 fps 电源电压:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相关产品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP
ISL6227HRZ 功能描述:IC CONTROLLER DDR, DDR2 28QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器,Intel VR11 输入电压:5 V ~ 12 V 输出数:1 输出电压:0.5 V ~ 1.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN(7x7) 包装:管件
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