Features: · Low operation current (1.7mA)· One resistor for timing setting· Internal automatic tracking for optimum dead time· No reverse energy flow at light load· Best suited for primary green-mode PWM IC· Wide supply voltage range from...
SG6203: Features: · Low operation current (1.7mA)· One resistor for timing setting· Internal automatic tracking for optimum dead time· No reverse energy flow at light...
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Symbol |
Parameter |
Value |
Unit | |
VCC |
DC Supply Voltage* |
25 |
V | |
IOUT |
Gate Output Current |
500 |
mA | |
VH |
DET, OUT, VZ |
-0.3 to 25.0 |
V | |
VL |
RT, IN+, IN- |
-0.3 to 7.0 |
V | |
PD |
Power Dissipation | SOP8 |
400 |
mW |
DIP8 |
800 | |||
R JA |
Thermal Resistance (Junction-to-Air) | SOP8 |
208.4 |
°C/W |
DIP8 |
82.5 | |||
TJ |
Operating Junction Temperature |
150 |
°C | |
TSTG |
Storage Temperature Range |
-65 to +150 |
°C | |
TL |
Lead Temperature (Soldering, 10 Seconds) |
300 |
°C | |
ESD |
Electrostatic Discharge Capability, Human Body Model |
2.0 |
KV | |
Electrostatic Discharge Capability, Machine Model |
200 |
V |
* All voltage values, except differential voltages, are given with respect to GND pin.
* Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device.
Product | Product status | Eco Status | Pricing* | Package type | Leads | Packing method | Package Drawing | Package Marking Convention** |
---|---|---|---|---|---|---|---|---|
SG6203SZ | Full Production | RoHS Compliant | $0.271 | SOIC | 8 | TAPE REEL | Line 1: SG6203SZ Line 2: A&60&4&Z |
* Fairchild 1,000 piece Budgetary Pricing |
** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples |
Package marking information for product SG6203 is available. Click here for more information . |
The SG6203 is designed to control and drive the synchronous rectifier for the flyback converter. The synchronous signal of the primary switch is obtained by a single diode connected between the transformer secondary winding and the SG6203. Using the SG6203, no additional transformer winding is required and the circuit complexity can be minimized.
The power unit can be properly operated under discontinuous conduction mode (DCM) or continuous conduction mode (CCM). Problems such as "shoot-through" or "cross conduction" in CCM and energy-reverse from the secondary to the primary in DCM are prevented by the SG6203 design.