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PDF FAN3989 Data sheet ( Hoja de datos )
| Número de pieza | FAN3989 | |
| Descripción | USB/Charger Detection Device | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de FAN3989 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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November 2008
FAN3989
USB/Charger Detection Device with Load Switch
Features
Charger/USB Detection Device with Load Switch
Charger/USB Device Detection Flag
Over/Under-Voltage Detection Flag
Load Switch Output, Up to 1.5A Charge Current
VBUS Supply: 2.7V to 20V
CON of 1.5pF
Package: 8 MLP
Applications
Mobile Phones
Handheld Devices
Description
The FAN3989 is a USB-connection-monitoring device
used to determine if a standard USB device is
connected or a battery changing device is connected.
The FAN3989 sets the FLAG1 pin to logic HIGH or
LOW as an indicator to the system controller that a
standard USB device or a charger is connected to the
USB port. The FAN3989 also monitors the VBUS for
over- or under-voltage conditions. The FLAG2 pin is set
LOW if VBUS is less than 3.3V or greater than 6.0V. The
internal LS CTRL (load switch control) pin is set HIGH if
VBUS is less than 3.3V or greater than 6.0V, turning off
the PMOS switch.
The FAN3989 is packaged in a very small 8-lead MLP
package suitable for small board space applications,
like mobile phones.
Ordering Information
Part Number
Operating
Temperature Range
FAN3989MLP8X
www.DataSheet4U.com
-40°C to +85°C
Eco Status
Green
Package
8-Lead Molded Leadless
Package (MLP)
Packing
Method
Quantity
Reel
3000
For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
VOUT
LS CTRL
VBUS
D-
D+
GND
© 2007 Fairchild Semiconductor Corporation
FAN3989 Rev. 1.0.3
Comparato r
OVP
UVP
Std USB/
Charger
Detect
Logic
Logic
Figure 1. Block Diagram
FLAG 2
FLAG 1
www.fairchildsemi.com
1 page  
Typical Performance Characteristics
VCC = 2.7V-7.0V
1.00
0.90
0.80
0.70
0.60
0.50
0.40
VCC
Icc
Figure 3. ICC vs. VCC (2.7V-7.0V) No Load
VCC = 8.0V- 21V
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
VCC
ICC
Figure 4. ICC vs. VCC (8.0V-21V) No Load
192.0
190.0
188.0
186.0
184.0
182.0
180.0
RON vs VCC
VCC
Figure 5. RON vs. VCC (10Ω Load)
RON
www.DataSheet4U.com
Figure 6. Turn On Time
© 2007 Fairchild Semiconductor Corporation
FAN3989 • 1.0.3
5
www.fairchildsemi.com
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet FAN3989.PDF ] | |
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