Parameters |
Factory Lead Time |
1 Week |
Contact Plating |
Copper, Tin |
Mount |
Surface Mount |
Mounting Type |
Surface Mount |
Package / Case |
20-VSSOP (0.173, 4.40mm Width) Exposed Pad |
Number of Pins |
20 |
Operating Temperature |
-40°C~85°C TA |
Packaging |
Tape & Reel (TR) |
Published |
2005 |
Pbfree Code |
yes |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
3 (168 Hours) |
Number of Terminations |
20 |
ECCN Code |
EAR99 |
Subcategory |
Switching Regulator or Controllers |
Terminal Position |
DUAL |
Terminal Form |
GULL WING |
Peak Reflow Temperature (Cel) |
260 |
Terminal Pitch |
0.65mm |
Time@Peak Reflow Temperature-Max (s) |
10 |
Base Part Number |
BD9851 |
Function |
Step-Up, Step-Down |
Number of Outputs |
2 |
Output Type |
Transistor Driver |
Operating Supply Voltage |
18V |
Input Voltage-Nom |
12V |
Analog IC - Other Type |
DUAL SWITCHING CONTROLLER |
Output Configuration |
Positive or Negative |
Output Current |
200mA |
Voltage - Supply (Vcc/Vdd) |
4V~18V |
Control Features |
Enable, Frequency Control, Soft Start |
Input Voltage (Min) |
4V |
Topology |
Buck, Boost |
Control Mode |
VOLTAGE-MODE |
Frequency - Switching |
10kHz~3MHz |
Control Technique |
PULSE WIDTH MODULATION |
Synchronous Rectifier |
No |
Switcher Configuration |
SINGLE |
Max Frequency |
3MHz |
Output Phases |
1 |
Length |
6.5mm |
Width |
4.4mm |
REACH SVHC |
No SVHC |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
BD9851EFV-E2 Overview
With its 20-VSSOP (0.173, 4.40mm Width) Exposed Pad package, the switching controller fits the needs of most applications. The dc motor controller is adquate to generate for 2 outputs. Tape & Reel (TR) is the solid enclosure in which PMIC is packaged. With this function, you can deal with Transistor Driver dc switching's outputs (s). Voltages 4V~18V are the dc control's supply voltage and operating voltage, respectively. A -40°C~85°C TA dc switcher is not a problem. The switching controller can be switched at 10kHz~3MHz. A generalization of dc dc regulator can be made using Surface Mount. Enable, Frequency Control, Soft Start is used for efficient switching control in the dcdc regulator. The switch converters are connected to an analog IC with a DUAL SWITCHING CONTROLLER output. The switching converters's terminal (s) are designed at DUAL . Different dc switching's functions can be applied to 20 terminations. The control methods that these dc dc converter ics use include PULSE WIDTH MODULATION. There is a DC switcher's nominal voltage of 12V. You can find other relevant dc to dc converter ics by searching "BD9851". In total, switching converter has 20 pins. The type is a particular Switching Regulator or Controllers of switching converter. An input voltage of 4V is the minimum required for the dc dc voltage regulator. If you are starting a new project, you should note the dc dc regulator's typical output current is 200mA. As DC switcher has a Surface Mount, it's suitable for most applications and prototype designs. This dc regulatorhas a max frequency of 3MHz. To run the voltage regulator dc to dc safely and reliably, users should apply 18V to the voltage regulator dc to dc.
BD9851EFV-E2 Features
Transistor Driver Outputs
Switching Frequency: 10kHz~3MHz
Enable, Frequency Control, Soft Start
PULSE WIDTH MODULATION
BD9851EFV-E2 Applications
There are a lot of ROHM Semiconductor BD9851EFV-E2 DC to DC converter applications.
- SMT equipment
- Magnetohydrodynamic power
- Automatic plug-in machines
- Injection molding machinery
- Terrestrial set-top boxes
- Surface processing equipment
- Balance equipment
- Fire elevators
- Mobile phones
- Household control circuits