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參數(shù)資料
| 型號： | G526 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Dual USB High-Side Power Switch |
| 中文描述： | 雙USB高端功率開關(guān) |
| 文件頁數(shù)： | 5/6頁 |
| 文件大小： | 89K |
| 代理商： | G526 |
Ver 1.0
Dec 26, 2000
TEL: 886-3-5788833
http://www.gmt.com.tw
5
G526
Global Mixed-mode Technology Inc.
Figure 3. Inrush Current-Limit Application
Enable Input
EN must be driven logic high or logic low, or be pulled
high or low for a clearly defined input. Floating the
input may cause unpredictable operation. EN should
not be allowed to go negative with respect to GND.
Soft Start
The G526 presents a high impedance when off, and
slowly becomes a low impedance as it turns on. This
reduces inrush current and related voltage drop that
results from charging a capacitive load, satisfying the
USB voltage drop requirements, for bus-powered ap-
plications as shown in Figure 2.
The soft start circuit shown in Figure 3 can be utilized
to meet USB transient regulation specifications with
large load capacitances (CBULK >10μF). The G526
will provide inrush current limiting for these applica-
tions.
Transient Overcurrent Filter
Figure 4. Transient Filter
The inrush current from the connection of a heavy ca-
pacitive load may cause the fault flag to fall for a short
duration while the switch is in a constant-current mode,
for charging the capacitance. In needed, a simple 1ms
RC low-pass filter in series with the fault flag circuit
will prevent erroneous overcurrent reporting (see Fig-
ure 4).
USB
Function
USB
Function
USB
Controller
V
BUS
Cable
4.7
μF
GND
USB Hub
C
BULK
C
BULK
G526
USB Peripheral
1
2
3
4
8
7
6
5
ENA
FLGA
FLGB
ENB
OUTA
IN
GND
OUTB
OVERCURRENT
USB Controller
0.1 μF
10k
10k
V
＋
1
2
3
4
5
6
7
8
G526
ENA
FLGA
FLGB
ENB
OUTA
IN
GND
OUTB
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| G526-1 | Dual USB High-Side Power Switch |
| G526-2 | PWR AMP SOT363 |
| G53AD-DC6 | CONN 40POS 2MM SOCKET STR PC SMD |
| G53AD-DC110 | Wire-To-Board Connector; No. of Contacts:30; Pitch Spacing:0.079"; No. of Rows:2; Gender:Female; Leaded Process Compatible:Yes; Peak Reflow Compatible (260 C):Yes RoHS Compliant: Yes |
| G53AD-DC110K | Wire To Board Header; No. of Contacts:30; Pitch Spacing:0.079"; No. of Rows:2; Mounting Type:PCB Right Angle Thru Hole; Gender:Female; Leaded Process Compatible:No; Peak Reflow Compatible (260 C):No RoHS Compliant: No |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| G526-1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual USB High-Side Power Switch |
| G526-2 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual USB High-Side Power Switch |
| G528 | 制造商:GMT 制造商全稱:Global Mixed-mode Technology Inc 功能描述:USB High-Side Power Switch Advance Information |
| G52803014AEU | 制造商:Amphenol Corporation 功能描述: |
| G5281 | 制造商:GMT 制造商全稱:Global Mixed-mode Technology Inc 功能描述:Slew Rate Controlled Load Switch |
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