SG6846CDZ ETC-unknow, SG6846CDZ Datasheet
SG6846CDZ
Available stocks
Related parts for SG6846CDZ
SG6846CDZ Summary of contents
Page 1
Highly-Integrated Green-Mode PWM Controller FEATURES T Two-level OCP with 96mS delay time T Peak-current-mode operation with cycle-by-cycle current limiting T PWM frequency continuously decreasing w/ burst mode at light loads T Low start-up current (8uA) T Low operating current (3.7mA) ...
Page 2
... SG6846LD 8-Pin DIP SG6846CS 8-Pin SOP SG6846CD 8-Pin DIP SG6846LSZ 8-Pin SOP (Lead Free) SG6846LDZ 8-Pin DIP (Lead Free) SG6846CSZ 8-Pin SOP (Lead Free) SG6846CDZ 8-Pin DIP (Lead Free) © System General Corp. Version 1.0(IAO33.0008.B0) PIN CONFIGURATION GND VIN 3 RI ...
Page 3
Highly-Integrated Green-Mode PWM Controller PIN DESCRIPTIONS Pin No. Symbol Function 1 GND Ground 2 FB Feedback Line-voltage 3 VIN Detection Reference 4 RI Setting Temperature 5 RT Detection 6 SENSE Current Sense 7 VDD Power Supply 8 GATE Driver Output ...
Page 4
Highly-Integrated Green-Mode PWM Controller ABSOLUTE MAXIMUM RATINGS Symbol Parameter V Supply Voltage DD V Input Voltage to VIN, FB, SENSE, RT, RI Pin L P Power Dissipation D R Thermal Resistance Ø J-C T Operating Ambient Temperature J T Storage ...
Page 5
Highly-Integrated Green-Mode PWM Controller Current Sense Section Symbol Parameter Z Input Impedance CS T Delay to Output PD B Leading Edge Blanking Time =1V Threshold Voltage for Current Limit TH =3V Threshold Voltage for ...
Page 6
Highly-Integrated Green-Mode PWM Controller PWM Section Symbol Parameter D Maximum Duty Cycle MAX V Output Voltage Low OL V Output Voltage High OH T Rising Time R T Falling Time F V Gate Output Clamping Voltage CLAMP Over Temperature Protection ...
Page 7
Highly-Integrated Green-Mode PWM Controller TYPICAL CHARACTERISTICS Start-up Threshold Voltage vs Temperature 17.5 17.0 16.5 16.0 15.5 -40 -25 - Temperature (:) Start-up Current vs Temperature 16.000 15.500 15.000 14.500 14.000 13.500 -40 -25 -10 5 ...
Page 8
Highly-Integrated Green-Mode PWM Controller PWM Frequency vs Temperature 65.300 65.200 65.100 65.000 64.900 64.800 64.700 64.600 -40 -25 - Temperature (:) Current-limit Threshold vs VIN Voltage 1 0.8 0.6 0 ...
Page 9
Highly-Integrated Green-Mode PWM Controller OPERATION DESCRIPTION Start-up Operation The turn-on/turn-off thresholds are fixed internally at 16.5V/10.5V. To enable the SG6846 during start-up, the hold-up capacitor must first be charged to 16.5V through the start-up resistor. The hold-up capacitor will continue ...
Page 10
Highly-Integrated Green-Mode PWM Controller voltage over 0.92V, the PWM output will be turned on again. The hysteresis window for ON/OFF is around 0.2V. VDD Over-voltage Protection VDD over-voltage protection is built in to prevent the controller from over-voltage destruction. When ...
Page 11
Highly-Integrated Green-Mode PWM Controller REFERENCE CIRCUIT Application circuit for 32V/16V output P1 F1 RT1 CY1 CX1 LF2 VZ1 CY2 LF1 BOM PART NO. VALUE R1, R2, R3, R4 470Kè +/-5% R8, R9 S1M +/-1% R5 ...
Page 12
Highly-Integrated Green-Mode PWM Controller PACKAGE INFORMATION DIP-8 Outline Dimensions Dimension Millimeter Symbol Min 0.381 A2 3.175 9.017 E E1 6.223 e L 2.921 e 8.509 B ð+ 0 ...
Page 13
Highly-Integrated Green-Mode PWM Controller SOP-8 Outline Dimensions Dimension: Millimeter Symbol Min. A 1.346 A1 0.101 4.648 E 3.810 5.791 L 0.406 ð © System General Corp. Version 1.0(IAO33.0008.B0) ...
Page 14
Highly-Integrated Green-Mode PWM Controller LIFE SUPPORT System General’s products are not designed to be used as components in devices intended to support or sustain human life. Use of System General’s products in components intended for surgical implant into the body, ...