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MFG:OZ D/C:07+
Part Number: OZ9950
MFG: OZ
D/C: 07+
Description: OZ9950 is a high efficiency, DC-DC step up converter that allows a series connection of White LEDs res...
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OZ9950
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DataSheet
General Description
OZ9950 General Description
OZ9950 is a high efficiency, DC-DC step up converter that allows a series connection of White LEDs resulting in uniform brightness. The step-up converter topology works in a discontinuous mode to allow the use of a small inductor and ease of loop stability that results in a high efficiency and low cost module. An external Pulse Width Modulation (PWM) signal or external voltage can be used for the dimming control function. The IC provides the user with an overvoltage protection feature. A soft start feature is provided to minimize in-rush current during startup. OZ9950 operates with a standby current of approximately 0.2uA.
OZ9950 Maximum Ratings
| Input Voltage |
7V | |
| GNDA |
+/- 0.3V | |
| Signal Inputs |
-0.3V to (VCC + 0.3)V | |
| Operating Temp. |
OZ9950 |
OZ9950I |
|
-20 to +85 |
-40 to +85 | |
| Operating Junction Temp. |
125 | |
| Storage Temp. |
-55 to 150 | |
OZ9950 Features
• High efficiency DC-DC step up converter for the white LED drivers
• 1.8 V to 5.5 V input voltage range
• PWM or Analog dimming control
• Over-voltage protection
• Soft Start
• Low standby current
• Small inductor & capacitor values
• 1.8 V to 5.5 V input voltage range
• PWM or Analog dimming control
• Over-voltage protection
• Soft Start
• Low standby current
• Small inductor & capacitor values
OZ9950 Typical Application
• PDA
• Cellular phones
• Color displaying backlights
• Cellular phones
• Color displaying backlights
OZ9950 Connection Diagram
OZ9950
PDF/DataSheet Download
- Datasheet: OZ9950
- File Size: 174687 KB
- Manufacturer:
- Click here to Download
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