| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Frequency | 360 kHz |
| Number of Pins | 12 Pin |
| Supply Voltage (DC) | 2.70V (min) |
| Case/Package | TQFN-12 |
| Number of Outputs | 1 Output |
| Output Voltage | 4.5V ~ 90V |
| Output Current | 10 mA |
| Number of Positions | 12 Position |
| Power Dissipation | 1.35 W |
| Switching Frequency | 300 kHz |
| Input Voltage (Max) | 5.5 V |
| Input Voltage (Min) | 2.7 V |
| Output Voltage (Max) | 90 V |
| Output Voltage (Min) | 4.5 V |
| Output Current (Max) | 0.005 A |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage (Max) | 5.5 V |
| Supply Voltage (Min) | 2.7 V |
| Input Voltage | 2.7V ~ 5.5V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Cut Tape (CT) |
| Size-Length | 4.1 mm |
| Size-Width | 4.1 mm |
| Size-Height | 0.75 mm |
| Operating Temperature | -40℃ ~ 85℃ |
The MAX1932ETC+ is a low-noise, high-voltage Output to Bias Avalanche Photodiode (APD) in optical receivers. Very low output ripple and noise is achieved by a constant-frequency, pulse-width modulated (PWM) boost topology combined with a unique architecture that maintains regulation with an optional RC or LC post filter inside its feedback loop. A precision reference and error amplifier maintain 0.5% output voltage accuracy. The MAX1932 protects expensive APDs against adverse operating conditions while providing optimal bias. Traditional boost converters measure switch current for protection, whereas the MAX1932 integrates accurate high-side current limiting to protect APDs under avalanche conditions. A current-limit flag allows easy calibration of the APD operating point by indicating the precise point of avalanche breakdown. The MAX1932 control scheme prevents output overshoot and undershoot to provide safe APD operation without data loss.
● Unique architecture delivers excellent accuracy for improved system performance
● Protection features guarantee safe operation - Accurate high-side current limit
● Output-voltage flexibility facilitates multiple applications and design approaches
● Small circuit footprint reduces equipment size
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