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MAX749 LCD Bias Supply Datasheet
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Product Details
The MAX749 is a digitally adjustable supply for LCD displays.
The MAX749 generates a negative contrast voltage from 2V to 6V inputs. The output
voltage is digitally adjustable in 64 equal steps by an internal digital to analog
converter. The MAX749 requires only a few external components to make a complete supply system.
Quiescent current is only 60µA and this is further reduced to 15µA in
shutdown mode.
Features
- +2.0V to +6.0V Input Voltage Range
- Flexible Control of Output voltage: Digital Control, Potentiometer Adjustment, PWM Control
- Output Voltage Range Set by One Resistor
- Low, 60µA MAX Quiescent Current
- 15µA MAX Shutdown Mode
Pin Layout
Pin Description
| Pin Number | Description |
|---|---|
| 1 | V+ - Positive Supply |
| 2 | ADJ - Adjust |
| 3 | CTRL - Control |
| 4 | FB - Feedback Input |
| 5 | GND - Ground |
| 6 | DLOW - Output Driver Low |
| 7 | DHI - Output Driver High |
| 8 | CS - Current Sense Input |
Dimensional Drawing
Technical Data
