900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






etcTI

TPS40051 Datasheet Preview

TPS40051 Datasheet

WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER

No Preview Available !

www.ti.com
TPS40050
TPS40051
8 TPS40053
SLUS540F − DECEMBER 2002 − REVISED JUNE 2004
WIDEĆINPUT SYNCHRONOUS
BUCK CONTROLLER
FEATURES
D Operating Input Voltage 8 V to 40 V
D Input Voltage Feed-Forward Compensation
D < 1 % Internal 0.7-V Reference
D Programmable Fixed-Frequency Up to 1 MHz
Voltage Mode Controller
D Internal Gate Drive Outputs for High-Side and
Synchronous N-Channel MOSFETs
D 16-Pin PowerPADt Package (θJC = 2°C/W)
D Thermal Shutdown
D Externally Synchronizable
D Programmable High-Side Current Limit
D Programmable Closed-Loop Soft-Start
D TPS40050 Source Only
D TPS40051 Source/Sink
D TPS40053 Source/Sink With VOUT Prebias
APPLICATIONS
D Power Modules
D Networking/Telecom
D Industrial
D Servers
SIMPLIFIED APPLICATION
DESCRIPTION
The TPS4005x is a family of high-voltage, wide input
(8 V to 40 V), synchronous, step-down converters.
The TPS4005x family offers design flexibility with a
variety of user programmable functions, including
soft-start, UVLO, operating frequency, voltage feed-
forward, high-side current limit, and loop compensation.
The TPS4005x are also synchronizable to an external
supply. They incorporate MOSFET gate drivers for
external N-channel high-side and synchronous rectifier
(SR) MOSFETs. Gate drive logic incorporates
anti-cross conduction circuitry to prevent simultaneous
high-side and synchronous rectifier conduction.
The TPS4005x uses voltage feed-forward control
techniques to provide good line regulation over the wide
(4:1) input voltage range, and fast response to input line
transients with near constant gain with input variation
which eases loop compensation.
The externally programmable current limit provides
pulse-by-pulse current limit, as well as hiccup mode
operation utilizing an internal fault counter for longer
duration overloads.
TPS40050PWP
1 KFF
ILIM 16
2 RT
VIN 15
VIN
3 BP5 BOOST 14
4 SYNC HDRV 13
5 SGND
SW 12
6 SS/SD BP10 11
7 VFB
LDRV 10
8 COMP PGND 9
+
VOUT
UDG−02130
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.
PowerPADt is trademark of Texas Instruments.
PRODUCTION DATA information is 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.
Copyright 2002, 2004, Texas Instruments Incorporated




etcTI

TPS40051 Datasheet Preview

TPS40051 Datasheet

WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER

No Preview Available !

TPS40050
TPS40051
TPS40053
SLUS540F − DECEMBER 2002 − REVISED JUNE 2004
www.ti.com
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.
ORDERING INFORMATION
TA
−40°C to 85°C
APPLICATION
SOURCE(2)
SOURCE/SINK(2)
SOURCE/SINK(2) with prebias
PACKAGE
Plastic HTSSOP (PWP)(1)
Plastic HTSSOP (PWP)(1)
Plastic HTSSOP (PWP)(1)
PART NUMBER
TPS40050PWP
TPS40051PWP
TPS40053PWP
(1) The PWP package is also available taped and reeled. Add an R suffix to the device type (i.e., TPS40050PWPR). See the application section of
the data sheet for PowerPAD drawing and layout information.
(2) See Application Information section, pg. 7
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted(3)
TPS40050
TPS40051
TPS40053
UNIT
VIN 45
VFB, SS, SYNC
−0.3 to 6
Input voltage range, VIN
SW
SW, transient < 50 ns
−0.3 to 45
−2.5
V
KFF, with IIN(max) = −5 mA
−0.3 to 11
Output voltage range, VOUT
COMP, RT, SS
−0.3 to 6
Input current, IIN
KFF
5 mA
Output current, IOUT
RT
200 µA
Operating junction temperature range, TJ
−40 to 125
Storage temperature, Tstg
−55 to 150
°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
260
(3) 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 operating conditions” is
not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
Input voltage, VI
Operating free-air temperature, TA
PWP PACKAGE(4)(5)
(TOP VIEW)
MIN NOM MAX UNIT
8 40 V
−40 85 °C
KFF
RT
BP5
SYNC
SGND
SS/SD
VFB
COMP
1 16
2 15
3 14
4 THERMAL 13
5 PAD 12
6 11
7 10
89
ILIM
VIN
BOOST
HDRV
SW
BP10
LDRV
PGND
(4) For more information on the PWP package, refer to TI Technical Brief, Literature No. SLMA002.
(5) PowerPADt heat slug must be connected to SGND (pin 5) or electrically isolated from all other pins.
2


Part Number TPS40051
Description WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
Maker etcTI
Total Page 30 Pages
PDF Download

TPS40051 Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 TPS40050 WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
etcTI
2 TPS40050-Q1 WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
etcTI
3 TPS40051 WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
etcTI
4 TPS40051-Q1 WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
etcTI
5 TPS40052 WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
etcTI
6 TPS40053 WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
etcTI
7 TPS40053-Q1 WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
etcTI
8 TPS40054 Wide-Input Synchronous Buck Controller
etcTI
9 TPS40055 Wide-Input Synchronous Buck Controller
etcTI





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy