TPS2014600mA
TPS20151 A
TPS2041B500mA
TPS2051B500mA
TPS2045A 250mA
TPS2049100mA
TPS2055A 250mA
TPS20611 A
TPS20651 A
TPS20681.5 A
TPS20691.5 A
TPS2042B500mA
TPS2052B500mA
TPS2046B250mA
TPS2056250mA
TPS20621 A
TPS20661 A
TPS20601.5 A
TPS20641.5 A
•Maximum Standby Supply Current:1-μA (Single, Dual) or 2-μA (Triple, Quad)
•Ambient Temperature Range: -40°C to 85°C
•UL Recognized, File Number E169910
•Additional UL Recognition for TPS2042B and
TPS2052B for Ganged Configuration
APPLICATIONS
•Heavy Capacitive Loads
TPS2041B, TPS2042B
DESCRIPTION
The TPS204xB/TPS205xB power-distribution switches are intended for applications where heavy capacitive
loads and short circuits are likely to be encountered. These devices incorporates 70-mΩ N-channel MOSFET
power switches for power-distribution systems that require multiple power switches in a single package. Each
switch is controlled by a logic enable input. Gate drive is provided by an internal charge pump designed to
control the power-switch rise times and fall times to minimize current surges during switching. The charge pump
requires no external components and allows operation from supplies as low as 2.7 V.
When the output load exceeds the current-limit threshold or a short is present, the device limits the output current
to a safe level by switching into a constant-current mode, pulling the overcurrent (OCx) logic output low. When
continuous heavy overloads and short-circuits increase the power dissipation in the switch, causing the junction
temperature to rise, a thermal protection circuit shuts off the switch to prevent damage. Recovery from a thermal
shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures that the switch remains
off until valid input voltage is present. This power-distribution switch is designed to set current limit at 1 A
typically.
1
2PowerPAD is a trademark of Texas Instruments.
UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
See TI Switch Portfolio at http://www.ti.com/usbpower
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
www.ti.com
(1)
MSOP (DGN)SOIC (D)SOT-23 (DBV)SON (DRB)
T
A
-40°C to
85°C
DEVICE INFORMATION
RECOMMENDEDSHORT-
ENABLEOF
Active lowSingleTPS2041BDGNTPS2041BDTPS2041BDBV
Active highSingleTPS2051BDGNTPS2051BDTPS2051BDBV
Active lowDualTPS2042BDGNTPS2042BDTPS2042BDRB
Active highDualTPS2052BDGNTPS2052BDTPS2052BDRB
Active lowTriple--TPS2043BD
Active highTriple--TPS2053BD
Active lowQuad--TPS2044BD
Active highQuad--TPS2054BD
MAXIMUMCIRCUIT
CONTINUOUSCURRENT
LOAD CURRENTLIMIT
0.5 A1 A
TYPICALPACKAGED DEVICES
NUMBER
SWITCHES
AT 25°C
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted
Input voltage range, V
Output voltage range, V
Input voltage range, V
Voltage range, V
I(/OC)
I(IN)
I(EN)
, V
O(OUT)
I(OCx)
Continuous output current, I
Continuous total power dissipationSee Dissipation Rating Table
Operating virtual junction temperature range, T
Storage temperature range, T
Electrostatic discharge (ESD) protection
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operatingconditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltages are with respect to GND.
, V
, V
I(INx)
, V
I(ENx)
O(OUT)
stg
(2)
O(OUTx)
, V
I(EN)
, I
O(OUTx)
(2)
, V
I(ENx)
J
Human body model (HBM)2 kV
Charge device model (CDM)500 V
(1)
UNIT
-0.3 V to 6 V
-0.3 V to 6 V
-0.3 V to 6 V
-0.3 V to 6 V
Internally limited
-40°C to 125°C
-65°C to 150°C
DISSIPATING RATING TABLE
PACKAGE
DGN-81712.3 mW17.123 mW/°C941.78 mW684.93 mW
D-8585.82 mW5.8582 mW/°C322.20 mW234.32 mW
D-16898.47 mW8.9847 mW/°C494.15 mW359.38 mW
DBV-5285 mW2.85 mW/°C155 mW114 mW
DRB-8 (Low-K)
DRB-8 (High-K)
(1)
(2)
(1) Soldered PowerPAD on a standard 2-layer PCB without vias for thermal pad. See TI application note SLMA002 for further details.
(2) Soldered PowerPAD on a standard 4-layer PCB with vias for thermal pad. See TI application note SLMA002 for further details.
EN13-IEnable input, logic low turns on power switch IN-OUT1
EN24-IEnable input, logic low turns on power switch IN-OUT2
EN1-3IEnable input, logic high turns on power switch IN-OUT1
EN2-4IEnable input, logic high turns on power switch IN-OUT2
GND11Ground
IN22IInput voltage
OC188OOvercurrent, open-drain output, active low, IN-OUT1
OC255OOvercurrent, open-drain output, active low, IN-OUT2
OUT177OPower-switch output, IN-OUT1
OUT266OPower-switch output, IN-OUT2
PowerPAD™--
Functional Block Diagram (TPS2042B and TPS2052B)
Internally connected to GND; used to heat-sink the part to the circuit board
traces. Should be connected to GND pin.
EN13--IEnable input, logic low turns on power switch IN1-OUT1
EN24--IEnable input, logic low turns on power switch IN1-OUT2
EN37--IEnable input, logic low turns on power switch IN2-OUT3
EN1--3IEnable input, logic high turns on power switch IN1-OUT1
EN2--4IEnable input, logic high turns on power switch IN1-OUT2
EN3--7IEnable input, logic high turns on power switch IN2-OUT3
GND1, 51, 5Ground
IN122IInput voltage for OUT1 and OUT2
IN266IInput voltage for OUT3
NC8, 9, 108, 9, 10No connection
OC11616OOvercurrent, open-drain output, active low, IN1-OUT1
OC21313OOvercurrent, open-drain output, active low, IN1-OUT2
OC31212OOvercurrent, open-drain output, active low, IN2-OUT3
OUT11515OPower-switch output, IN1-OUT1
OUT21414OPower-switch output, IN1-OUT2
OUT31111OPower-switch output, IN2-OUT3
EN13-IEnable input, logic low turns on power switch IN1-OUT1
EN24-IEnable input, logic low turns on power switch IN1-OUT2
EN37-IEnable input, logic low turns on power switch IN2-OUT3
EN48-IEnable input, logic low turns on power switch IN2-OUT4
EN1-3IEnable input, logic high turns on power switch IN1-OUT1
EN2-4IEnable input, logic high turns on power switch IN1-OUT2
EN3-7IEnable input, logic high turns on power switch IN2-OUT3
EN4-8IEnable input, logic high turns on power switch IN2-OUT4
GND1, 51, 5Ground
IN122IInput voltage for OUT1 and OUT2
IN266IInput voltage for OUT3 and OUT4
OC11616OOvercurrent, open-drain output, active low, IN1-OUT1
OC21313OOvercurrent, open-drain output, active low, IN1-OUT2
OC31212OOvercurrent, open-drain output, active low, IN2-OUT3
OC499OOvercurrent, open-drain output, active low, IN2-OUT4
OUT11515OPower-switch output, IN1-OUT1
OUT21414OPower-switch output, IN1-OUT2
OUT31111OPower-switch output, IN2-OUT3
OUT41010OPower-switch output, IN2-OUT4