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参数资料
| 型号： | ISL6218CV-T |
| 厂商： | Intersil |
| 文件页数： | 9/19页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR INTEL PENT M 38-TSSOP |
| 标准包装： | 2,500 |
| 应用： | 处理器 |
| 电流 - 电源： | 1.4mA |
| 电源电压： | 4.75 V ~ 5.25 V |
| 工作温度： | -10°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 38-TFSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 38-TSSOP |
| 包装： | 带卷 (TR) |
ISL6218
The choice of value for soft-start capacitor is determined by
the maximum slew rate required for the application. An
example calculation is shown in Equation 1. Using the I1
current source on the SOFT pin as 130μA, and the slew rate
of (10mV/ μ s), the SOFT capacitor is calculated in Equation 1:
ISL6218
C SOFT = SOURCE = 130 μA ?
I
SlewRate
1 μs
10 mV
≈ 0 . 012 μF
(EQ. 1)
ERROR
AMPLIFIER
Gate Drive Signals
The ISL6218 provides internal gate drive for a single
channel, Synchronous Buck, Core Regulator.
The ISL6218 was designed with a 4A, low side gate current
sink ability, and a 2A, low-side gate current source ability to
I DROOP
+
efficiently drive the latest, high performance MOSFETs. This
feature will provide the system designer with flexibility in
MOSFET selection as well as optimum efficiency during all
modes of operation.
SOFT
R DROOP
+ V DROOP
C SOFT
EA+
Frequency Setting
The power channel switching frequency is set up by a
resistor from the FSET pin to ground. The choice of FSET
resistance for a desired switching frequency can be
approximated using Figure 3. The switching frequency is
designed to operate between 250kHz and 500kHz per
phase.
CORE Voltage Programming
FIGURE 4. SOFT-START TRACKING CIRCUITRY SHOWING
INTERNAL CURRENT SOURCES AND “DROOP”
FOR ACTIVE, DEEP AND DEEPER SLEEP
MODES OF OPERATION
TABLE 1. INTEL IMPV-IV VID CODES
The voltage identification pins (VID0, VID1, VID2, VID3,
VID4 and VID5) set the DAC output voltage. These pins do
not have internal pull-up or pull-down capability. These pins
will recognize 1.0V, 3.3V or 5.0V CMOS logic. Table 1 shows
the command voltage, V DAC for the 6 bit VID codes.
The IC responds to VID code changes as shown in Figure 5.
PGOOD is masked between these transitions.
250
200
150
100
50
VID5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
VID4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
VID3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
VID2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
VID1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
VID0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
VDAC
1.708
1.692
1.676
1.660
1.644
1.628
1.612
1.596
1.580
1.564
1.548
1.532
1.516
1.500
1.484
0
250k
500k
750k
1M
0
0
1
1
1
1
1.468
CHANNEL SWITCHING FREQUENCY, f SW (Hz)
FIGURE 3. CHANNEL SWITCHING FREQUENCY vs R FSET
0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
0
0
0
1
1
0
1
0
1
1.452
1.436
1.420
1.404
9
FN9101.6
August 6, 2007
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相关代理商/技术参数 |
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| ISL6218CVZ | 功能描述:电流型 PWM 控制器 P6 MULTIPHS BUCK PWM CNTRLR FOR IMVP4 IBM RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL6218CVZA | 功能描述:电流型 PWM 控制器 W/ANNEAL P6 MULTIPHS BUCK PWM CONTR RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL6218CVZA-T | 功能描述:电流型 PWM 控制器 W/ANNEAL P6 MULTIPHS BUCK PWM CONTR RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL6218CVZ-T | 功能描述:电流型 PWM 控制器 P6 MULTIPHS BUCK PWM CNTRLR FOR IMVP4 RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL6218EVAL2 | 功能描述:EVALUATION BOARD 2 FOR ISL6218 RoHS:否 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
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