Features: ` Qualification in Accordance With AEC-Q100(1)
` Qualified for Automotive Applications
` Customer-Specific Configuration Control Can Be Supported Along With Major-Change Approval
` Operating Input Voltage 8 V to 40 V
` Input Voltage Feed-Forward Compensation
` < 1 % Internal 0.7-V Reference
` Programmable Fixed-Frequency Up to 1 MHz Voltage Mode Controller
` Internal Gate Drive Outputs for High-Side and Synchronous N-Channel MOSFETs
` 16-Pin PowerPADTM Package (JC = 2/W)
` Thermal Shutdown
` Externally Synchronizable
` Programmable High-Side Current Limit
` Programmable Closed-Loop Soft-Start
` TPS40050 Source Only
` TPS40051 Source/Sink
` TPS40053 Source/Sink With VOUT Prebias
(1) Contact factory for details. Q100 qualification data available on request.
Application· Power Modules
· Networking/Telecom
· Industrial
· Servers
Specifications
| |
TPS40050-Q1
TPS40051-Q1
TPS40053-Q1 |
UNIT |
| Input voltage range, VIN |
VIN |
45 |
V |
| VFB, KFF, SS, SYNC |
−0.3 to 6 |
| SW |
−0.3 to 45 |
| SWT (SW transient < 50 ns) |
−2.5 |
| Output voltage range, VO |
COMP, KFF, RT, SS |
−0.3 to 6 |
|
| Output current, IOUT |
RT |
200 |
A |
| Operating junction temperature range, TJ |
−40 to 140 |
|
| Storage temperature, Tstg |
−55 to 150 |
| 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.
DescriptionThe 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 feedforward, 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.
TPS40050-Q1_1059541 Data Sheet
