Description:1.5-5.5V 1ch Boost converter : BD8158FVM are the 1 channel step-up switching regulator which builds in the low voltage FET. Input voltage is 2.1V to 4.0V realizing the low consumption power. High accuracy feedback voltage ±1% is established and the brightness dispersion of TFT-LCD panel is suppressed.
FOR THE SWITCHING FREQUENCY OF 600 KHZ INPUT VOLTAGE MAX IS 5.5 VOLT
Analog IC - Other Type:
SWITCHING REGULATOR
Control Mode:
CURRENT-MODE
Control Technique:
PULSE WIDTH MODULATION
Input Voltage-Max:
4 V
Input Voltage-Min:
2.1 V
Input Voltage-Nom:
2.5 V
JESD-30 Code:
R-PDSO-G8
Length:
2.9 mm
Number of Functions:
1
Number of Terminals:
8
Operating Temperature-Max:
125 °C
Operating Temperature-Min:
-40 °C
Output Current-Max:
1.5 A
Package Body Material:
PLASTIC/EPOXY
Package Code:
VSSOP
Package Equivalence Code:
TSSOP8,.16
Package Shape:
RECTANGULAR
Package Style:
SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
NOT SPECIFIED
Qualification Status:
Not Qualified
Seated Height-Max:
0.9 mm
Surface Mount:
YES
Switcher Configuration:
BOOST
Switching Frequency-Max:
1440 kHz
Temperature Grade:
AUTOMOTIVE
Terminal Form:
GULL WING
Terminal Pitch:
0.65 mm
Terminal Position:
DUAL
Time@Peak Reflow Temperature-Max (s):
NOT SPECIFIED
Width:
2.8 mm
BD8158FVM-TR Frequently Asked Questions (FAQs)
A recommended PCB layout for the BD8158FVM-TR involves placing the device near a thermal pad or a heat sink, and ensuring good thermal conductivity between the device and the PCB. A 4-layer PCB with a solid ground plane and a thermal relief pattern around the device can help to dissipate heat effectively.
To ensure the stability of the output voltage in the BD8158FVM-TR, it is recommended to use a capacitor with a low ESR (Equivalent Series Resistance) and a high capacitance value (e.g., 10uF or higher) at the output. Additionally, the input capacitor should be placed close to the device and have a low ESR to minimize voltage ripple.
The maximum ambient temperature range for the BD8158FVM-TR is -40°C to 105°C. However, the device can operate at a higher temperature range with derating. It is recommended to consult the datasheet for derating curves and thermal management guidelines.
Yes, the BD8158FVM-TR is suitable for high-reliability applications. ROHM Semiconductor has implemented various quality control measures to ensure the device's reliability, including burn-in testing, environmental testing, and accelerated life testing. However, it is recommended to consult the datasheet and application notes for specific guidelines on using the device in high-reliability applications.
To troubleshoot issues with the BD8158FVM-TR, start by checking the input voltage, output voltage, and current consumption. Verify that the device is properly soldered and that the PCB layout is correct. Check for any signs of overheating, such as excessive temperature rise or thermal shutdown. Consult the datasheet and application notes for troubleshooting guidelines and fault diagnosis procedures.
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BD8158FVM-TR Overview
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