Power Switches. RT9715CA Datasheet

RT9715CA Switches. Datasheet pdf. Equivalent

RT9715CA Datasheet
Recommendation RT9715CA Datasheet
Part RT9715CA
Description 1.5A High-Side Power Switches
Feature RT9715CA; ® RT9715CA 90mΩ, 1.5A High-Side Power Switches with Flag General Description The RT9715CA is a cos.
Manufacture Richtek
Datasheet
Download RT9715CA Datasheet




Richtek RT9715CA
®
RT9715CA
90mΩ, 1.5A High-Side Power Switches with Flag
General Description
The RT9715CA is a cost-effective, low-voltage, single
N-MOSFET high-side Power Switch IC for USB application.
Low switch-on resistance (typ. 90mΩ) and low supply
current (typ. 50μA) are realized in this IC.
The RT9715CA integrates an over-current protection circuit,
a short fold back circuit, a thermal shutdown circuit and
an under-voltage lockout circuit for overall protection.
Besides, a flag output is available to indicate fault
conditions to the local USB controller. Furthermore, the
chip also integrates an embedded delay function to prevent
miss-operation from happening due to inrush-current. The
RT9715CA is an ideal solution for USB power supply and
can support in package SOT-23-5.
Ordering Information
RT9715CA
Package Type
B : SOT-23-5
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek 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
4R=DNN
4R= : Product Code
DNN : Date Code
Features
90mΩ (typ.) N-MOSFET Switch
Operating Range : 2.7V to 5.5V
Reverse Blocking Current
Under Voltage Lockout
Deglitched Fault Report (FLG)
Thermal Protection with Foldback
Over Current Protection
Short Circuit Protection
UL ApprovedE219878
Nemko ApprovedNO49621
RoHS Compliant and Halogen Free
Applications
USB Peripherals
Notebook PCs
Pin Configurations
(TOP VIEW)
VIN EN
54
23
VOUT GND FLG
SOT-23-5
Copyright ©2015 Richtek Technology Corporation. All rights reserved.
DS9715CA-00 April 2015
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1



Richtek RT9715CA
RT9715CA
Typical Application Circuit
Supply Voltage
2.7V to 5.5V
Enable
Pull-Up Resistor (10k to 100k)
USB Controller
VIN FLG
CIN
1µF
RT9715CA
VOUT
EN
GND
Over -Current
COUT
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 No.
1
2
3
4
5
Pin Name
VOUT
GND
FLG
EN
VIN
Output Voltage.
Ground.
Fault FLAG Output.
Chip Enable (Active High).
Power Input Voltage.
Pin Function
Function Block Diagram
EN Bias UVLO
Oscillator
Charge
Pump
Thermal
Protection
Current
Limiting
Gate
Control
Output Voltage
Detection
Delay
VIN
VOUT
FLG
GND
Copyright ©2015 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS9715CA-00 April 2015



Richtek RT9715CA
RT9715CA
Absolute Maximum Ratings (Note 1)
Supply Input Voltage, VIN -------------------------------------------------------------------------------------------- 6V
EN Voltage -------------------------------------------------------------------------------------------------------------- 0.3V to 6V
FLAG Voltage ---------------------------------------------------------------------------------------------------------- 6V
Power Dissipation, PD @ TA = 25°C
SOT-23-5 ---------------------------------------------------------------------------------------------------------------- 0.3W
Package Thermal Resistance (Note 2)
SOT-23-5, θJA ----------------------------------------------------------------------------------------------------------- 250°C/W
Junction Temperature ------------------------------------------------------------------------------------------------- 150°C
Lead Temperature (Soldering, 10 sec.) --------------------------------------------------------------------------- 260°C
Storage Temperature Range ---------------------------------------------------------------------------------------- 65°C to 150°C
ESD Susceptibility (Note 3)
HBM (Human Body Mode) ------------------------------------------------------------------------------------------ 2kV
MM (Machine Mode) -------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 4)
Supply Input Voltage, VIN -------------------------------------------------------------------------------------------- 2.7V to 5.5V
EN Voltage -------------------------------------------------------------------------------------------------------------- 0V to 5.5V
Junction Temperature Range ---------------------------------------------------------------------------------------- 40°C to 100°C
Ambient Temperature Range ---------------------------------------------------------------------------------------- 40°C to 85°C
Electrical Characteristics
(VIN = 5V, CIN = 1μF, COUT = 10μF, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Input Quiescent Current
Input Shutdown Current
Switch On Resistance
Current Limit
Short Current
IQ
ISHDN
ILIM
ISC_FB
Switch On, VOUT = Open
Switch Off, VOUT = Open
VIN = 5V, IOUT = 1.3A
VOUT = 4V
VOUT = 0V, Measured Prior to
Thermal Shutdown
EN Logic_High Voltage
Threshold Logic_Low Voltage
EN Input Current
Output Leakage Current
Output Turn-On Rise Time
FLG Output Resistance
FLG Off Current
VIH
VIL
IEN
ILEAKAGE
TON_RISE
RFLG
IFLG_OFF
FLG Delay Time
TD
VIN = 2.7V to 5.5V
VIN = 2.7V to 5.5V
VEN = 5V
VEN = 0V, RLOAD = 0
10% to 90% of VOUT Rising
ISINK = 1mA
VFLG = 5V
From fault condition to FLG
assertion
Min
--
--
--
1.5
--
2
--
--
--
--
--
--
5
Typ
50
0.1
90
2
1.4
--
--
0.01
0.5
200
20
0.01
12
Max
70
1
110
2.8
--
--
0.8
0.1
1
--
--
1
20
Unit
A
m
A
A
V
A
A
s
A
ms
Copyright ©2015 Richtek Technology Corporation. All rights reserved.
DS9715CA-00 April 2015
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
3







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