RT9711 Просмотр технического описания (PDF) - Richtek Technology
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RT9711 Datasheet PDF : 15 Pages
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RT9711
Typical Application Circuit
Preliminary
Test Circuits
Pull-Up Resistor (10K to 100K)
Supply
Voltage 5V
VIN
FLG
1uF
RT9711
USB Controller
Over -Current
OFF
ON
VOUT
EN
GND
10uF
150uF
VBUS
D+
D-
GND
VIN
CIN
OFF
ON
Ferrite
Beads
Data
Note: A low-ESR 150μF aluminum electrolytic or tantalum
between VOUT and GND is strongly recommended to meet
the 330mV maximum droop requirement in the hub VBUS.
(see Application Information Section for further details)
Functional Pin Description
Pin No.
Pin Name
RT9711□B RT9711□S
Pin Function
1
5
FLG
Open-Drain Fault Flag Output
2
1
GND
Ground
3
4
EN
Chip Enable (Active Low)
4
2, 3 VIN
Power Input Voltage
5
6, 7, 8 VOUT
Output Voltage
RFG
VIN
FLG
RT9711
VOUT
EN
GND
VFLG
VOUT
COUT
RL IL
Function Block Diagram
EN
Bias
UVLO
Oscillator
Charge
Pump
Thermal
Protection
Current
Limiting
Gate
Control
Output Voltage
Detection
Delay
VIN
VOUT
FLG
GND
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DS9711-04 March 2007
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