|
|
The BD2270HFV driver IC integrates a low ON-resistance NMOSFET for switching. Additional internal elements include a charge pump (for NMOSFET driving), discharge and control circuits, and a comparator with hysteresis. The result: greater space savings and ease of use than discrete solutions. |
 |
 |
Features
- Low voltage NMOSFET drive
- Supports Vcc up to NMOSFET VDMAX.
- Built-in soft start circuit
- Equipped with an output discharge pin (VMAX.≦6V）
- Compatible with power supply startup sequence control
|
Feature 1: The ultra-compact HVSOF5 contributes to space-saving designs
|
The BD2270HFV is offered in the compact HVSOF5 package (1.6×1.6×0.6mm), reducing the number of components compared with discrete solutions for large current applications. As a result, surface mount area is decreased by 35%, making it ideal for portable devices of all types. |
 |
Feature 2: Integrated soft start function prevents inrush current
|
Supplying a High signal to the AEN terminal discharges the load from the internal charge pump. In addition, connecting a capacitor to the Gate terminal mitigates inrush current due to large capacitive loads, resulting in smooth NMOSFET startup. |
 |
Electrical Characteristics
Operating Voltage
(V) |
Current Consumption
(µA) |
Control Input
Logic |
Gate Terminal
Output Current |
Output tum on time
Gate terminal
VGATE>4V |
Discharge Resistance
(Ω) |
| 2.7 to 5.5 |
50 |
H Active
H>2.45V/L<1.35V |
13.5V
at Vcc＝5.0V |
130µsec |
200 |
Applications
| · |
Desktop PCs |
· |
HD recorders |
· |
Electronic dictionaries |
· |
Webcams |
| · |
Notebook PCs |
· |
Digital cameras |
· |
CD/DVD drives |
· |
Wireless LAN routers |
| · |
PC boards |
· |
Mobile phones |
· |
Portable gaming equipment |
· |
Projectors |
| · |
Car audio systems |
· |
PDAs |
· |
Toys |
· |
Portable terminals |
| · |
Car navigation systems |
· |
Single segment TVs |
· |
IC recorders |
|
and more… |
| · |
Portable audio players |
· |
Portable navigation devices |
· |
USB hubs |
|
|
Related Information
|
 News
|
ROHM Internet Direct Shopping