Features: PC half-bridge (or 494) power supply supervisor +two 431 + PWM High integration & few external components Over-voltage protection for 3.3V, 5V and 12V Under-voltage protection for 3.3V, 5V and 12V Under-voltage protection for 12V and/or 5V Over-power and short-circuit protection Pow...
SG6105: Features: PC half-bridge (or 494) power supply supervisor +two 431 + PWM High integration & few external components Over-voltage protection for 3.3V, 5V and 12V Under-voltage protection for 3.3...
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Parameter |
Symbol |
Unit |
Min |
Max |
DC Supply Voltage |
VDD |
V
|
-0.3
|
16 |
Input Voltage |
Vi
|
V |
-0.3 |
16 |
Output Voltage |
VOUT |
V |
-0.3 |
30 |
Operating Free Air Temperature Range |
TA |
-0.3 |
1.5 | |
Storage Temperature Range |
TSTG |
-40 |
0.5 | |
Soldering Temperature |
Vdc |
-55 |
-55 to +150 | |
ESD Capability, HBM model |
Vdc |
KV |
82.5 |
SG6105 controller is designed for switching mode power supply for desktop PCs. It provides all the functions necessary to monitor and control the output of the power supply. Remote ON/OFF control, power good circuitry, some protection features against over-voltage and over-power are implemented. It directly senses all the output rails for OVP without the need of external dividers. An innovated AC-signal sampling circuitry provides a sufficient power-down warning signal for PG. A built-intimer generates accuracy timing for control circuit including the PS-off delay. The cycle-by-cycle PWM switching prevents the power transformer from the saturation and ensures the fastest response for the short-circuit protection which greatly reduce the stress for power transistors. Two internal precision TL431 shunt regulators provide stable reference voltage and driver for 3.3V and 5V-standby regulation. Utilizing minimum number of external components, the SG6105 includes allof the functions for push-pull and/or half-bridge topology, decreasing the production cost and PCB space, and increasing the MTBF for power supply.