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参数资料
| 型号： | ISL6119LIBZA |
| 厂商： | Intersil |
| 文件页数： | 9/13页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR PWR SUPP USB DUAL 8SOIC |
| 标准包装： | 980 |
| 类型： | 热交换开关 |
| 应用： | USB |
| 内部开关： | 是 |
| 电流限制： | 1A |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 管件 |
ISL6119
Using the ISL6119EVAL1 Platform
General and Biasing Information
The ISL6119EVAL1 platform, Figure 19, allows evaluation of
the ISL6119 dual power supply control IC and comparison
against a suitably sized PPTC component.
The evaluation platform is biased and monitored through
numerous test points (TP#). See Table 1 for test point
assignments and descriptions.
TABLE 1. ISL6119EVAL1 TEST POINT ASSIGNMENTS
FAULT LED, see Figure 10. (Please note: the labeling for
FAULT-1 and FAULT-2 is reversed). The eval board is
designed to only invoke an OC condition on channel 2 (TP4)
so that a channel to channel isolation evaluation in the
presence of an OC condition can be evaluated. See
Figure 18.
The primary function of any OC protection device is to
quickly isolate the voltage bus from a faulty load. Unlike the
PPTC and other vendor available IC products, the ISL6119
TP #
TP1
TP2
TP3
TP4
TP5
TP6
TP7
TP8
TP9
TP10
TP11
DESCRIPTION
Eval Board and IC Gnd
Eval Bd +5V Bias
Enable Switch 1
Enable Switch 2
Switch 2 Fault
Switch Out 2
Switch Out 1
Switch 1 Fault
IC VIN Pin
PPTC Load Side
Invoke Over Current
internal timer that starts upon OC detection provides
consistent protection that is not temperature dependent. See
Figures 14 and 15 for a comparison of the time to protection
offered by the ISL6119 vs the PPTC. Figure 14 illustrates the
ISL6119 timed latch-off of 12ms with a 1.5A load and
Figure 15 shows the 8 second latch-off of the PPTC at
approximately its trip current rating of 1.5A.
Using the ISL6119USBEVAL1 Platform
General and Biasing Information
The ISL6119USBEVAL1 platform, Figure 20, allows
evaluation of the ISL6119 dual power supply control IC in a
USB environment.
The evaluation platform is biased and monitored through
numerous test points (TP#). See Table 2 for test point
assignments and descriptions.
Upon proper bias the PPTC, F1 has a nominal 500mA load
TABLE 2. ISL6119USBEVAL1 TEST POINT ASSIGNMENTS
current passing through it which is the hold current rating for
that particular device. Removal of the PPTC is necessary to
isolate the ISL6119 as the PPTC load current is common to
the ISL6119EVAL1 bias connections.
By enabling either or both of the ISL6119L switches by
signaling TP3 and/or TP4 low (<0.6V) these switches are
also loaded with a nominal 500mA current. See Figures 3
and 8 for typical ISL6119 turn-on and off waveforms.
Provided test points enable the evaluation of voltage loss
TP #
TP1
TP2
TP3
TP4
TP5
TP8
DESCRIPTION
Eval Board and IC Gnd
Eval Bd +5V Bias
Enable Switch 1
Enable Switch 2
Switch 1 Fault
Switch 2 Fault
across the PPTC (TP9 - TP10) and the ISL6119 enabled
switches (TP9 - TP6 and TP7). Expect to see 50% - 300%
greater voltage loss across typical PPTC devices than the
ISL6119. See Figure 13 for a voltage loss comparison
across ISL6119 and PPTC device.
An overcurrent (OC) condition can be invoked on both the
ISL6119 and the PPTC by driving TP11 to +6V, causing SW1
to close and a nominal 1.5A load is imposed. This
represents a current over load to the ISL6119 and is thus
quickly current regulated to the 1A limit. If the OC duration
extends beyond the nominal 12ms of the internal ISL6119L
timer then the output is latched off and the fault output is
asserted by being pulled low turning on the appropriate
9
Upon proper bias the ISL6119L is held off through pull up
resistors on the enable pins and is enabled by signaling
either or both of the ISL6119L switches TP3, and/or TP4 low
(<0.6V).
The USB connector is provided so that either test loads or
USB peripherals can be powered. In addition, differential
signalling (D+ and D-) access points are provided for each
output port so that I/O activity can also be conducted in a
prototype environment.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6119LIBZA-T | 功能描述:电源开关 IC - USB W/ANNEAL DL USB HI SIDESWTICH ENABLE LW RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| ISL6119LIBZA-TS2715 | 制造商:Intersil Corporation 功能描述:BROADCOM, ISL6119LIBZA-T W/BUSINESS TRACKING REQUIREMENTS, S - Tape and Reel |
| ISL6119USBEVAL1 | 功能描述:EVALUATION BOARD FOR ISL6119 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:PCI Express® (PCIe) 主要目的:接口，收发器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要属性:- 次要属性:- 已供物品:板 |
| ISL6119USBEVAL1-T | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:USB Dual Port Power Supply Controller |
| ISL6120 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Power Distribution Controllers |
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