- 您现在的位置：买卖IC网 > PDF目录17244 > ISL6218EVAL2 (Intersil)EVALUATION BOARD 2 FOR ISL6218 PDF资料下载
参数资料
| 型号： | ISL6218EVAL2 |
| 厂商： | Intersil |
| 文件页数： | 9/19页 |
| 文件大小： | 0K |
| 描述： | EVALUATION BOARD 2 FOR ISL6218 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输入电压： | 5.6 ~ 25V |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | ISL6218 |
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
相关PDF资料 |
PDF描述 |
|---|---|
| MAX5056BASA+ | IC MOSFET DRVR DUAL 8-SOIC |
| TAC566K006P06-F | CAP TANT 56UF 6V 10% AXIAL |
| T95X156M6R3EZSL | CAP TANT 15UF 6.3V 20% 2910 |
| IRS2332JTRPBF | IC BRIDGE DVR 3PH 600V 44-PLCC |
| EL7531EVAL1 | EVALUATION BOARD FOR EL7531 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6219 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Microprocessor CORE Voltage Regulator Precision Multi-Phase BUCK PWM Controller for Mobile Applications |
| ISL6219 WAF | 制造商:Harris Corporation 功能描述: |
| ISL6219A | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Microprocessor CORE Voltage Regulator Precision Multi-Phase BUCK PWM Controller for Mobile Applications |
| ISL6219A_07 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Microprocessor CORE Voltage Regulator Precision Multi-Phase BUCK PWM Controller for Mobile Applications |
| ISL6219ACA | 功能描述:IC REG CTRLR BUCK PWM VM 28-SSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。