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PDF GMB51001 Data sheet ( Hoja de datos )
| Número de pieza | GMB51001 | |
| Descripción | Power Distribution Switch | |
| Fabricantes | Global Mixed-mode | |
| Logotipo |  |
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Global Mixed-mode Technology Inc.
GMB51001
Power Distribution Switch
Features
90mΩ High-Side MOSFET
Available with 4 Versions of Current Limits with
Foldback
Operating Range:2.7V to 5.5V
400µS Typical Rise Time
Under voltage Lockout
65µA Quiescent Supply Current
1µA Maximum Shutdown Supply Current
Logic Level Enable Pin, Available with
Active-High or Active-Low Version
No Reverse Current when Power Off
Deglitched Open-Drain Over-Current Flag
Output ( OC )
With Output Shutdown Pull-low Resister
SOP-8 Packages
UL Approved_#E232223
Nemko IEC 60950-1 CB/CCA_scheme certifica-
tion Report #67291
Applications
High-Side Power Protection Switch
USB Power Management
USB Host and Self-Powered Bubs
USB Bus-Powered Hubs
Hot Plug-In Power Supplies
Battery-Charger Circuits
General Description
The GMB51001 is an integrated 90mΩ pow er sw itch
for self-powered and bus-powered Universal Serial Bus
(USB) applications.
Several Protection features include current limiting w ith
foldback, and thermal shutdown to prevent catastrophic
switch failure caused by increasing pow er dissipation
when continuous heavy loads or short circuit occurs.
And a built-in charge pump is used to drive the
N-channel MOSFET that is free of parasitic body diode
to eliminate any reversed current flow across the switch
when it is powered off.
OC is open-drain output report over-current
or
over-temperature event and has typical 9ms deglitch
timeout period.
Pin Configuration
Ty
GND 1
GMB51001
8 OUT
IN 2
IN 3
7 OUT
6 OUT*
EN (EN) 4
5 OC
SOP-8
*Pin#6 should be considered as OUT when circuit design
and PCB layout, but it is NC pin actually.
R
UL Recognized Component
Ver: 1.0
Jul 06, 2009
pical Application Circuit
Power Supply
2.7V to 5.5V
GMB51001
1µF*
IN
OC
OUT
EN(EN)
ON
OFF
0.1µF
Load
22µF
*: 1µF of input capacitor is enough in most application cases.
If the PCB trace of power rail to IN is long, larger input capacitor is necessary.
TEL: 886-3-5788833
http://www.gmt.com.tw
1
http://www.Datasheet4U.com
1 page  
Global Mixed-mode Technology Inc.
Typical Performance Characteristics (continued)
GMB51001
ON-Resistance vs. Input Voltage
200
180 IOUT=1A
160
140
TA=25°C
TA=85°C
120
100
80
60
40 TA=-45°C
20
0
3.0
3.5 4.0 4.5 5.0
Input Voltage VIN (V)
5.5
ON-Resistance vs. Temperature
140
120 IOUT=1A
100
VIN=3V
80
60
VIN=3.5V
VIN=5V
40
20
0
-45 -35 -25 -15 -5 5 15 253 54 5 556 5 758 5
Temperature (°C)
Current Limit Threshold vs. Input Voltage
2.7
TA=-45°C
2.4
2.1
1.8
TA=25°C
TA=85°C
1.5
VOUT=VIN - 1
1.2
2.5 3.0 3.5 4.0 4.5 5.0 5.5
Input Voltage VIN (V)
Overcurrent Protection Characteristics
5.1
4.8
4.5
4.2
3.9
3.6
3.3
3.0
2.7
2.4
2.1
1.8
1.5
1.2
0.9
0.6 VIN=5V
0.3
0.0
TA=85°C
TA=25°C
TA=-45°C
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6
Output Current (A)
Short Circuit Current vs. Input Voltage
2.1
1.8
TA=-45°C
1.5
1.2
0.9 TA=25°C
0.6
TA=85°C
0.3
VOUT=0V
0
2.53 .03 .54 .0 4.55 .05 .5
Input Voltage VIN (V)
Overcurrent Protection Characteristics
2.7
2.4
2.1 TA=85°C
1.8 TA=25°C
1.5 TA=-45°C
1.2
0.9
0.6
0.3 VIN=2.7V
0.0
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4
Output Current (A)
Ver: 1.0
Jul 06, 2009
TEL: 886-3-5788833
http://www.gmt.com.tw
5
5 Page 
Global Mixed-mode Technology Inc.
Package Information
GMB51001
SOP-8 (P1) Package
Taping Specification
PACKAGE Q
SOP-8
’TY/REEL
2,500 ea
GMT Inc. does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and GMT Inc. reserves the right at any time without notice to change said circuitry and specifications.
Ver: 1.0
Jul 06, 2009
TEL: 886-3-5788833
http://www.gmt.com.tw
11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet GMB51001.PDF ] | |
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