Datasheet Details
| Part number | PR4404 |
|---|---|
| Manufacturer | PREMA |
| File Size | 478.78 KB |
| Description | LED DRIVER |
| Download | PR4404 Download (PDF) |
|
|
| Part number | PR4404 |
|---|---|
| Manufacturer | PREMA |
| File Size | 478.78 KB |
| Description | LED DRIVER |
| Download | PR4404 Download (PDF) |
|
|
|
PR4404 SW Vout Vcc Vs Pin No 1 2 3 4 5 6 7 8 Pin Name SW Vout Vcc Vs Hold Gnd (A) Gnd (sub) Gnd (S) Pin Function Description driver output output voltage, rectified battery supply input LED cathode / current sense resistor shutdown ground (analog)* ground (substrate)* ground (power)* 1 SZ22v10 lot code date code 2 3 4 8 7 6 5 Gnd(S) Gnd(sub ) Gnd(A) Hold *Pins 6, 7, 8 must all be connected.
© PREMA Semiconductor GmbH 2008 Page 1/12 PRELIMINARY DATA Rev 3408 Free Datasheet http://www.datasheet4u.com/ LED DRIVER PR4404 Block Diagram Absolute Maximum Ratings Parameter VCC (no damage) SW output peak current Operating junction temperature Storage Temperature Range Electrostatic Discharge (ESD) Protection -20 -55 2 Min -0.3 Typ Max 8 1.5 125 150 Units V A ° C ° C kV Electrical Characteristics Ta = 25° C, unless otherwise noted.
Symbol Vcc Parameter Supply Voltage, min.
LED DRIVER PR4404 Low Voltage Boost Driver PR4404 for 0.5W / 1W Power LEDs The PR4404 is a step-up converter for white LEDs, operating with single battery cell supply (1.2/1.5V) at up to 150mA LED current or dual cell supply (2.4/3.0V) at up to 300mA LED current.
A minimum part count allows compact and cost-efficient solutions.
The converter can be switched on and off with a logic signal, which is useful e.g.
| Part Number | Description |
|---|---|
| PR4401 | (PR4401 / PR4402) 0.9V Boost Driver |
| PR4402 | (PR4401 / PR4402) 0.9V Boost Driver |
| PR4403 | 0.9V Boost Driver |
| PR4101 | High Power LED Buck Driver |