The SGM41283 is a high voltage non-synchronous Boost converter which integrates a 70V, 600mΩ, N-channel power FET and is capable of up to 1.1A switch current limit. The Boost converter adopts the fix frequency of 850kHz (TYP) peak current mode control for voltage regulation.
In addition, the SGM41283 integrates accurate current mirror with two selectable ratios of 10:1 and 2:1 for APD current monitoring.
The SGM41283 integrates various protection features such as Boost over-current protection, thermal shutdown, and APD current limit adjustment to protect the APD from optical power transients.
The SGM41283 is available in a Green TQFN-3×3-16L package. It operates over an ambient temperature range of -40℃ to +125℃.
Input Voltage Range: 2.7V to 5.5V
RDSON of Power FET: 0.6Ω
Output Voltage Range: up to 70V
Switch Current Limit: 1.1A
Switching Frequency: 850kHz
Internal Compensation and Soft-Start
APD Current Monitoring Response Time: 50ns
High-side APD Current Monitor with Less than ±5% Tolerance
High-side Current Monitor Ratios: 10:1 and 2:1
Thermal Shutdown Protection
Programmable APD Over-Current Limit and Protection
-40℃ to +125℃ Operating Temperature Range
Available in a Green TQFN-3×3-16L Package
APD Bias
Optical Line Terminal
High Voltage Sensor Bias
Part Number | Status | Package | Pins | Pb-Free | Temp Range | |
SGM41283XTQ16G/TR | Production | TDFN-3×3-16L | 16 | Y | -40℃ to +125℃ | Samples |