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G526-2のメーカーはGlobal Mixed-mode Technologyです、この部品の機能は「Dual USB High-Side Power Switch」です。 |
部品番号 | G526-2 |
| |
部品説明 | Dual USB High-Side Power Switch | ||
メーカ | Global Mixed-mode Technology | ||
ロゴ | |||
このページの下部にプレビューとG526-2ダウンロード(pdfファイル)リンクがあります。 Total 6 pages
Global Mixed-mode Technology Inc.
G526
Dual USB High-Side Power Switch
Features
Compliant to USB specifications
Low MOSFET on resistance at 5.0V 140mΩ max.
per channel
500mA minimum continuous load current per
channel
3.0V to 5.5V input
110µA typical on-state supply current
1µA typical off-state supply current
Output can be forced higher than input
(off-state)
1.25A maximum current limit
Thermal shutdown
2.4V typical undervoltage lockout (UVLO)
Open-drain fault flag pins
1ms turn-on (soft-start) and fast turnoff
Available with active-high or active-low
enable
Applications
USB host and self-powered hubs
Bus-powered hubs
Hot plug-in power supplies
Battery-charger circuits
Description
The G526 is a dual integrated high-side power switch
with independent enable and flag functions, optimized
for self-powered and bus-powered Universal Serial
Bus (USB) applications.
The G526 satisfies the following USB requirements:
the switch's low on-resistance meets USB voltage
drop requirements; fault current is limited to typically
750mA, well below the UL 25VA safety requirement;
and flag outputs are available to indicate fault condi-
tions to the local USB controller. Soft start eliminates
the momentary voltage drop on the upstream port that
may occur when the switch is enabled in bus-powered
applications.
Additional features include thermal shutdown to pre-
vent catastrophic switch failure from high-current loads,
under-voltage lockout (UVLO) ensuring that the device
remains off unless there is a valid input voltage pre-
sent, and an enable input that is compatible with both
3.3V and 5V logic.
The G526 is available in active-high and active-low
enable versions in 8-pin SOIC packages.
Ordering Information
PART
G526-1
G526-2
ENABLE
Active High
Active Low
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
PACKAGE
8-Pin SOP
8-Pin SOP
Pin Configuration
ENA 1
FLGA 2
G526
8 OUTA
7 IN
FLGB 3
6 GND
ENB 4
5 OUTB
8 Pin SOP
G526
(ENA)1
(FLGA)2
GATE
CONTROL
(FLGB)3
(ENB)4
GATE
CONTROL
6 (GND)
8(OUTA)
7 (IN)
5 (OUTB)
Ver 1.0
Dec 26, 2000
TEL: 886-3-5788833
http://www.gmt.com.tw
1
1 Page Global Mixed-mode Technology Inc.
Typical Applications
G526
Upstream
VBUS
100mA max.
VBUS
D+
D-
GND
IN OUT
1µF 1µF
GND
10k
10k
3.3V USB Controller
VIN ON/OFF
OVERCURRENT
OVERCURRENT
ON/OFF
Data
Block Diagrams
100k
100k
G526
ENA OUTA
FLGA IN
FLGB GND
ENB OUTB
VCC
5.0V
Ferrite
Beads
+
47µF
0.1µF
+
47µF
VBUS
D+
D-
GND
VBUS
D+
D-
GND
Data
(Two Pair)
USB
Port1
USB
Port2
ENA
CHARGE
PUMP
ENB
OSC.
CHARGE
PUMP
G526
THERMAL
SHUTDOWN
GATE
CONTROL
CURRENT
LIMIT
UVLO
1.2V
REFERENCE
GATE
CONTROL
CURRENT
LIMIT
GND
FLGA
OUTA
IN
OUTB
FLGB
Functional Description
The G526-1 and G526-2 are dual high-side switches
with active-high and active-low enable inputs, respec-
tively. Fault conditions turn off or inhibit turn-on one or
both of the output transistors, depending upon the
type of fault, and activate the open-drain error flag
transistors to pull FLG pin to ground.
Input and Output
IN (input) is the power supply connection to the logic
circuitry and the source of the output MOSFET. OUTx
(output) is the drain of the output A or B MOSFET. In a
typical circuit, current flows through the switch from IN
to OUT toward the load.
The output MOSFET and driver circuitry are also de-
signed to allow the MOSFET drain to be externally
forced to a higher voltage than the source (VOUT > VIN)
when the output is off. In this situation, the G526
avoids undesirable drain-to-body diode current flow by
connecting the body to the most positive voltage. If
VOUT >VIN when switch is enabled, current will flow
from VOUT to VIN.
Thermal Shutdown
Thermal shutdown shuts off both output MOSFETs
and signals both fault flags if the die temperature ex-
ceeds 135°C. 10°C of hystersis prevents the switch
from turning on until the die temperature drops to
125°C. Overtemperature detection functions only
when at least one switch is enabled.
Ver 1.0
Dec 26, 2000
TEL: 886-3-5788833
http://www.gmt.com.tw
3
3Pages Global Mixed-mode Technology Inc.
Package Information
G526
C
D
7 ° (4X)
EH
L
θ
A2 A
y
A1
e
B
Note:
Package body sizes exclude mold flash and gate burrs
Dimension L is measured in gage plane
Tolerance 0.10mm unless otherwise specified
4. Controlling dimension is millimeter converted inch dimensions are not necessarily exact.
SYMBOL
A
A1
A2
B
C
D
E
e
H
L
y
θ
MIN.
1.35
0.10
-----
0.33
0.19
4.80
3.80
-----
5.80
0.40
-----
0º
DIMENSION IN MM
NOM.
1.60
-----
1.45
-----
-----
-----
-----
1.27
-----
-----
-----
-----
MAX.
1.75
0.25
-----
0.51
0.25
5.00
4.00
-----
6.20
1.27
0.10
8º
MIN.
0.053
0.004
-----
0.013
0.007
0.189
0.150
-----
0.228
0.016
-----
0º
DIMENSION IN INCH
NOM.
0.063
-----
0.057
-----
-----
-----
-----
0.050
-----
-----
-----
-----
MAX.
0.069
0.010
-----
0.020
0.010
0.197
0.157
-----
0.244
0.050
0.004
8º
Ver 1.0
Dec 26, 2000
TEL: 886-3-5788833
http://www.gmt.com.tw
6
6 Page | |||
ページ | 合計 : 6 ページ | ||
|
PDF ダウンロード | [ G526-2 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
G526-1 | Dual USB High-Side Power Switch | ETC |
G526-1 | Dual USB High-Side Power Switch | Global Mixed-mode Technology |
G526-2 | Dual USB High-Side Power Switch | ETC |
G526-2 | Dual USB High-Side Power Switch | Global Mixed-mode Technology |