Power Switches. RT9711D Datasheet

RT9711D Switches. Datasheet pdf. Equivalent

RT9711D Datasheet
Recommendation RT9711D Datasheet
Part RT9711D
Description 1.5A/0.6A High-Side Power Switches
Feature RT9711D; RT9711A/B/C/D 80mΩ, 1.5A/0.6A High-Side Power Switches with Flag General Description The RT9711A/B.
Manufacture Richtek
Datasheet
Download RT9711D Datasheet




Richtek RT9711D
RT9711A/B/C/D
80mΩ, 1.5A/0.6A High-Side Power Switches with Flag
General Description
The RT9711A/B/C/D are cost-effective, low voltage, single
N-MOSFET high-side power switches, optimized for self-
powered and bus-powered Universal Serial Bus (USB)
applications. The RT9711 series are equipped with a
charge pump circuitry to drive the internal MOSFET switch.
The switch's low RDS(ON), 80mΩ, meets USB voltage drop
requirements. A flag output is available to indicate fault
conditions to the local USB controller.
Additional features include soft-start to limit inrush current
during plug-in, thermal shutdown to prevent catastrophic
switch failure from high-current loads, under-voltage
lockout (UVLO) to ensure that the device remains off
unless there is a valid input voltage present, fault current
is limited to typically 2.5A for RT9711A/B in dual ports
and 1A for RT9711C/D in single port in accordance with
the USB power requirements, lower quiescent current as
25μA making this device ideal for portable battery-operated
equipment.
The RT9711 series are available in SOT-23-5, TSOT-23-5,
SOP-8 and MSOP-8 packages fitting different aspect of
broad applications.
Features
z Compliant to USB Specifications
z Built-In N-MOSFET
` Typical RDS(ON) : 80mΩ (SOT-23-5 & TSOT-23-5) and
90mΩ (SOP-8 & MSOP-8)
z Output Can Be Forced Higher Than Input (Off-State)
z Low Supply Current :
25μA Typical at Switch On State
1μA Typical at Switch Off State
z Guaranteed 1.5A for RT9711A/B and 0.6A for
RT9711C/D Continuous Load Current
z Wide Input Voltage Ranges : 2.5V to 5.5V
z Open-Drain Fault Flag Output
z Hot Plug-In Application (Soft-Start)
z 1.7V Typical Under-Voltage Lockout (UVLO)
z Current Limiting Protection
z Thermal Shutdown Protection
z Reverse Current Flow Blocking (no body diode)
z Smallest SOT-23-5 and TSOT-23-5 Packages
Minimizes Board Space
z UL ApprovedE219878
z TUV IEC60950-1 : 2005 Certified
z RoHS Compliant and 100% Lead (Pb)-Free
Ordering Information
RT9711
Applications
Package Type
z USB Bus/Self Powered Hubs
B : SOT-23-5
z USB Peripherals
BG : SOT-23-5 (G-Type)
J5 : TSOT-23-5
S : SOP-8
F : MSOP-8
Lead Plating System
P : Pb Free
z ACPI Power Distribution
z PC Card Hot Swap
z Notebook, Motherboard PCs
z Battery-Powered Equipment
z Hot-Plug Power Supplies
G : Green (Halogen Free and Pb Free) z Battery-Charger Circuits
Note :
Output Current/EN Function
A : 1.5A/Active High
B : 1.5A/Active Low
C : 0.6A/Active High
D : 0.6A/Active Low
Richtek products are :
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
` 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.
DS9711A/B/C/D-03 April 2011
www.richtek.com
1



Richtek RT9711D
RT9711A/B/C/D
Pin Configurations
VOUT
5
VIN
4
23
FLG GND EN/EN
SOT-23-5/TSOT-23-5
(TOP VIEW)
VIN EN/EN
54
23
VOUT GND NC
SOT-23-5 (G-Type)
GND
VIN
VIN
EN/EN
2
3
4
8 VOUT
7 VOUT
6 VOUT
5 FLG
SOP-8/MSOP-8
Typical Application Circuit
Pull-Up Resistor (10K to 100K)
Supply
Voltage 5V
VIN
FLG
USB Controller
Over -Current
CIN RT9711A/B/C/D
1µF
RT9711A/C
Chip Enable
RT9711B/D
Chip Enable
VOUT
EN/EN
COUT
GND
10µF
150µF
VBUS
D+
D-
GND
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 Name Pin Function
VIN Power Input Voltage
VOUT Output Voltage
GND
Ground
EN/EN
Chip Enable. Never let this pin floating.
(Active High for RT9711A/C, Active Low
for RT9711B/D)
FLG
Open-Drain Fault Flag Output
Function Block Diagram
EN/EN
Bias
UVLO
Oscillator
Charge
Pump
Thermal
Protection
Current
Limiting
Gate
Control
Output Voltage
Detection
Delay
VIN
VOUT
FLG
GND
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DS9711A/B/C/D-03 April 2011



Richtek RT9711D
RT9711A/B/C/D
Absolute Maximum Ratings (Note 1)
z Supply Voltage --------------------------------------------------------------------------------------------------------- 6.5V
z Chip Enable Input Voltage ------------------------------------------------------------------------------------------- 0.3V to 6.5V
z Flag Voltage ------------------------------------------------------------------------------------------------------------ 6.5V
z Power Dissipation, PD @ TA = 25°C
SOT-23-5, TSOT-23-5 ------------------------------------------------------------------------------------------------- 0.4W
SOP-8, MSOP-8 ------------------------------------------------------------------------------------------------------- 0.625W
z Package Thermal Resistance (Note 2)
SOT-23-5, TSOT-23-5, θJA ------------------------------------------------------------------------------------------- 250°C/W
SOP-8, MSOP-8, θJA ------------------------------------------------------------------------------------------------- 160°C/W
z Junction Temperature ------------------------------------------------------------------------------------------------- 150°C
z Lead Temperature (Soldering, 10 sec.) --------------------------------------------------------------------------- 260°C
z Storage Temperature Range ---------------------------------------------------------------------------------------- 65°C to 150°C
z ESD Susceptibility (Note 3)
HBM (Human Body Mode) ------------------------------------------------------------------------------------------ 2kV
MM (Machine Mode) -------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 4)
z Supply Input Voltage -------------------------------------------------------------------------------------------------- 2.5V to 5.5V
z Chip Enable Input Voltage ------------------------------------------------------------------------------------------- 0V to 5.5V
z Junction Temperature Range ---------------------------------------------------------------------------------------- 40°C to 125°C
z Ambient Temperature Range ---------------------------------------------------------------------------------------- 40°C to 85°C
Electrical Characteristics
(VIN = 5V, CIN = COUT = 1μF, TA = 25°C, unless otherwise specified)
Pa ra met er
Sym bo l
Test Conditions
M in
Switch On
Res is tan ce
(RT9711A/B)
Switch On
Res is tan ce
(RT9711C/D)
SOT-23-5, TSOT-23-5
SOP-8, MSOP-8
SOT-23-5, TSOT-23-5
SOP-8, MSOP-8
RDS(ON)
IOUT = 1A, VIN = 5V
IOUT = 0.5A, VIN = 5V
--
--
--
--
Supply Current
ISW_ON
ISW_OFF
switch on, RLOAD Open
switch off, RLOAD Open
--
--
EN /EN
Thres ho ld
Logic-Low Voltage
Logic-High Voltage
VIL
VIH
VIN = 2.5V to 5.5V
VIN = 2.5V to 5.5V
--
2 .0
EN/EN Input Current
IEN/EN
VEN/EN = 0V to 5.5V
--
Output Leakage Current
Output Turn-On Rise Time
ILEA K
VEN = 0V, VEN = 5V, R LOAD = 0Ω
TON_RISE 10% to 90% of VOUT rising
--
--
Current Limit
RT9711A/B
RT9711C/D
ILIM
Current Ramp (< 0.1A/ms) on 1.6
VOUT
0 .7
Typ
80
90
80
90
25
0 .1
--
--
0. 01
0 .5
400
2 .5
1
Max Units
100
mΩ
11 0
100
mΩ
11 0
45
μA
1
0.8 V
-- V
-- μA
10 μA
-- us
3.2 A
1.4 A
To be continued
DS9711A/B/C/D-03 April 2011
www.richtek.com
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