ALSO OPERATES IN PFM CONTROL TECHNIQUE; CUR LIM FOR BUCK 2 AND 3 IS 4.1 A; ADJ OUTPUT IS 0.8 TO 17V
Analog IC - Other Type:
SWITCHING REGULATOR
Control Mode:
CURRENT-MODE
Control Technique:
PULSE WIDTH MODULATION
Input Voltage-Max:
17 V
Input Voltage-Min:
4.5 V
Input Voltage-Nom:
12 V
JESD-30 Code:
S-PQCC-N40
JESD-609 Code:
e4
Length:
6 mm
Moisture Sensitivity Level:
3
Number of Functions:
1
Number of Outputs:
3
Number of Terminals:
40
Operating Temperature-Max:
125 °C
Operating Temperature-Min:
-40 °C
Output Current-Max:
3 A
Output Voltage-Max:
17 V
Output Voltage-Min:
0.8 V
Package Body Material:
PLASTIC/EPOXY
Package Code:
HVQCCN
Package Shape:
SQUARE
Package Style:
CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Cel):
260
Seated Height-Max:
1 mm
Surface Mount:
YES
Switcher Configuration:
BUCK
Switching Frequency-Max:
2200 kHz
Temperature Grade:
AUTOMOTIVE
Terminal Finish:
Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form:
NO LEAD
Terminal Pitch:
0.5 mm
Terminal Position:
QUAD
Time@Peak Reflow Temperature-Max (s):
30
Width:
6 mm
TPS65251-1RHAT Frequently Asked Questions (FAQs)
Texas Instruments provides a recommended PCB layout in the TPS65251-1RHAT evaluation module (EVM) user's guide, which can be found on the TI website. The EVM user's guide includes a detailed layout guide, including component placement, routing, and thermal considerations.
To optimize the output voltage accuracy of the TPS65251-1RHAT, ensure that the input voltage is within the recommended range, use a high-precision voltage reference, and minimize the output voltage noise by using a low-ESR output capacitor. Additionally, consider using a voltage feedback resistor network to improve the output voltage accuracy.
The maximum output current capability of the TPS65251-1RHAT is dependent on the input voltage, output voltage, and thermal conditions. According to the datasheet, the device can deliver up to 2A of output current, but this may be limited by the thermal performance of the PCB and the device's thermal rating.
The TPS65251-1RHAT has a built-in overcurrent protection (OCP) feature that can be enabled by connecting the OCP pin to a resistor network. The OCP threshold can be set by selecting the appropriate resistor values. Additionally, the device also has a short-circuit protection feature that can be enabled by connecting the SCP pin to a resistor network.
The recommended input capacitor value for the TPS65251-1RHAT is dependent on the input voltage and the desired level of input ripple rejection. A general rule of thumb is to use a capacitor with a value of at least 10uF, but this may need to be increased for higher input voltages or more stringent ripple rejection requirements.
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TPS65251-1RHAT Overview
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
