参数资料
| 型号： | ISL88694IH5-TK |
| 厂商： | Intersil |
| 文件页数： | 6/7页 |
| 文件大小： | 0K |
| 描述： | IC SMBUS ACCELERATOR SOT23-5 |
| 标准包装： | 1,000 |
| 类型： | SMBus 加速器 |
| Tx/Rx类型： | I²C Logic |
| 电源电压： | 2.7 V ~ 5.5 V |
| 电流 - 电源： | 80µA |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-5 |
| 包装： | 带卷 (TR) |
6
FN8239.1
January 21, 2005
ISL88694 Operation
To improve the operation of the SMBus where larger bus
capacitance exists, the ISL88694 provides active pull-up
using switched current sources. When the bus is idle and
both lines are HIGH, a standby pull-up current of 100A is
used to maintain the signal level while minimizing power
consumption. When either of the two signals is pulled LOW,
an active pull-up current of 275A maintains a good VOL
noise margin.
When the bus line is released, it is pulled high by the
ISL88694 active current until the voltage exceeds the
VTRIPL level for a period of time. This voltage-time
combination filters out noise on the signal line. Once the
ISL88694 detects a valid rising edge, a 2.2mA boost current
pulls the bus line high very quickly (see Figure 8). This boost
current turns off when the input level reaches the VTRIPH
threshold and the pull-up current returns to the active level. If
both inputs are HIGH, the pull-up current drops to the
standby level of 100A.
FIGURE 8. ISL88694 SMBus SYSTEM BOOST PULL-UP
COMPARED TO RESISTOR PULL-UP (VDD =
5.5V).
FIGURE 9. ISL88694 SMBus SYSTEM BOOST PULL-UP
COMPARED TO RESISTOR PULL-UP (VDD =
2.7V).
FIGURE 10. NOISE SUPPRESSION. BOOST CURRENT
APPLIED WHEN INPUT SIGNAL EXCEEDS 20Vns
(TYPICAL).
VTRIPL
With RC
Pullup
With ISL88694 SMA
VTRIPH
R=15.8K
C= 200pF
VTRIPL
With RC
Pullup
With ISL88694 SMA
VTRIPH
R=15.8K
C= 200pF
VTRIPL
Gnd
t
SMBus1
>20Vns
SMBus2
VDD
With SMA
Without SMA
(Typical)
VTRIPH
ISL88694
相关PDF资料 |
PDF描述 |
|---|---|
| ISL90460WIH527-TK | IC XDCP 32-TAP 10KOHMS SOT23-5 |
| ISL90461WIH627-TK | IC XDCP 32-TAP 10KOHM SOT23-6 |
| ISL90462WIH627-TK | IC XDCP 32-TAP 10KOHM SOT23-6 |
| ISL90726UIE627Z | IC XDCP 128-TAP 50KOHM SC70-6 |
| ISL90727WIE627Z | IC XDCP 128-TAP 10KOHM SC70-6 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL88694IH5Z | 制造商:Intersil Corporation 功能描述:SMBUS ACCELERATOR 5PIN SOT-23 - Tape and Reel |
| ISL88694IH5Z-TK | 功能描述:I2C 接口集成电路 ISL88694IH5Z SMBUS S IGNAL BOOSTER 5LD RoHS:否 制造商:NXP Semiconductors 电源电压-最大:5.5 V 电源电压-最小:2.3 V 最大工作频率:400 KHz 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-16 |
| ISL88705EVAL1 | 功能描述:EVAL BOARD 1 FOR ISL88705 RoHS:否 类别:编程器，开发系统 >> 评估演示板和套件 系列:* 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源 |
| ISL88705IB846Z | 功能描述:IC SUPERVISOR 4.64V 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极或开路集电极 复位:低有效 复位超时:最小为 600 ms 电压 - 阀值:3.8V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:带卷 (TR) |
| ISL88705IB846Z-TK | 功能描述:IC SUPERVISOR MPU 4.64V 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极或开路集电极 复位:低有效 复位超时:最小为 600 ms 电压 - 阀值:3.8V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。