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PDF CS9729 Data sheet ( Hoja de datos )
| Número de pieza | CS9729 | |
| Descripción | Power Distribution Switches | |
| Fabricantes | Richtek | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CS9729 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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CS9729
100mΩ Power Distribution Switches
General Description
The CS9729 is an integrated 100mΩ power switch for
self-powered and bus-powered Universal Series Bus (USB)
applications. A built-in charge pump is used to drive the
N-MOSFET that is free of parasitic body diode to eliminate
any reversed current flow across the switch when it is
powered off. Its low quiescent current (23µA) and small
package (SOT-23-5) is particularly suitable in battery-
powered portable equipment.
Several protection functions include soft start to limit inrush
current during plug-in, current limiting at 1.5A to meet
USB power requirement, and thermal shutdown to protect
damage under over current conditions.
Ordering Information
CS9729
Package Type
B : SOT-23-5
Operating Temperature Range
G : Green (Halogen Free with Commer-
cial Standard)
Note :
Richtek Green products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area, otherwise visit our website for detail.
Features
z 100mΩ Typ. High-Side N-MOSFET
z Guaranteed 1.1A Continuous Current
z 1.5A Current Limit
z Small SOT-23-5 Package Minimizes Board Space
z Soft Start
z Thermal Protection
z Low 23µA Supply Current
z Wide Input Voltage Range : 2.2V to 6V
z UL Approved - #E219878
z RoHS Compliant and Halogen Free
Applications
z Battery-Powered Equipment
z Motherboard USB Power Switch
z USB Device Power Switch
z Hot-Plug Power Supplies
z Battery-Charger Circuits
Pin Configurations
(TOP VIEW)
VOUT
5
EN
4
23
VOUT GND VIN
SOT-23-5
Typical Application Circuit
VIN
CIN
1µF
CS9729
VIN VOUT
VIN VOUT
GND
VOUT
* COUT
470µF
* 470uF, Low ESR Electrolytic
CS9729-00T00 September 2009
www.richtek.com
1
1 page  
CS9729
Short Circuit Current vs. Temperature
1400
1300
VIN = 5V
1200
1100
1000
900
800
700
600
500
-40 -20
0 20 40 60 80 100 120
Temperature (Γ°CC) )
EENNPTihnreTshhroesldhvosld. TVeomltapgeeratvusr.e
2.4
VIN = 5V
2.0
1.6
Rising
1.2
Falling
0.8
0.4
0.0
-40 -20
0 20 40 60 80 100 120
Temperature (°C) *Test Circuit 3
Turn On Rising Time vs. Temperature
720
VIN = 5V
630
540
450
360
270
180
90
0
-40 -20
RL = 30Ω
CL = 1µF Ceramic
0 20 40 60 80 100 120
Temperature (°C)
*Test Circuit 3
CS9729-00T00 September 2009
Short Circuit Current vs. Input Voltage
1950
TA = 25°C
1700
1450
1200
950
700
450
200
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Input Voltage (V)
EN EPNinTThhreresshhooldldvsV.oIlntapguet Vvosl.taIngpeut
2.4
TA = 25°C
2.0
1.6 Rising
1.2 Falling
0.8
0.4
0.0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Input Voltage (V)
*Test Circuit 3
Turn Off Falling Time vs. Temperature
140
VIN = 5V
120
100
80
60
40
20 RL = 30Ω
CL = 1µF Ceramic
0
-40 -20 0 20 40 60 80 100 120
Temperature (°C) *Test Circuit 3
www.richtek.com
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet CS9729.PDF ] | |
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