SG6848DZ System General Corporation, SG6848DZ Datasheet
SG6848DZ
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SG6848DZ Summary of contents
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Low Cost Green-Mode PWM Controller for Flyback Converters FEATURES Green-Mode PWM Supports the “Blue Angel” Standard Low Start-up Current (5uA) Low Operating Current (2mA) Leading-Edge Blanking Constant Output Power Limit Universal Input Built-in Synchronized Slope Compensation Current Mode Operation Cycle-by-cycle ...
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... MXYWW D=SG6848 (Lead Free) Y: Year; WW: Work Week 1 8 SG6848DP XXXXXXXYYWWV 1 ORDERING INFORMATION Part Number PWM Frequency SG6848T 70kHz SG6848D 70kHz SG6848TZ 70kHz SG6848DZ 70kHz PIN DESCRIPTIONS Pin No. Name Type DIP-8 / (SOT-26) GATE 1 / (6) Driver Output VDD 2 / (5) Supply NC 3 SENSE 4 / (4) ...
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Low Cost Green-Mode PWM Controller for Flyback Converters BLOCK DIAGRAM GND 8 (1) Internal Bias UVLO 16.3V/11.7V © System General Corp. Version 1.4(IRO33.0010.B2 (3) ON/OFF Driver Q OSC S R OCP Comp ...
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Low Cost Green-Mode PWM Controller for Flyback Converters ABSOLUTE MAXIMUM RATINGS Symbol Parameter V DC Supply Voltage * DD Zener Clamp Zener Current V Input Voltage to FB Pin FB V Input Voltage to Sense Pin SENCE P Power Dissipation ...
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Low Cost Green-Mode PWM Controller for Flyback Converters Oscillator Section Symbol Parameter F Frequency OSC F Green-Mode Frequency OSC-GREEN I Green-Mode FB Input Current G Green-Mode Start Threshold FB Input Current 0.3mA for a Maximum Duty ...
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Low Cost Green-Mode PWM Controller for Flyback Converters TYPICAL CHARACTERISTICS Start-up Threshold Voltage (V Tem perature 17.0 16.5 16.0 15.5 15.0 14.5 -40 -25 - TEMPERATURE ( ℃ ) Start-up Crrent ( Tem perature DD ...
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Low Cost Green-Mode PWM Controller for Flyback Converters PWM Oscillator Frequency (FOSC) vs 0.6 0.7 0.8 0.9 1.0 FB (mA) © System General Corp. Version 1.4(IRO33.0010.B2) 1.1 1.2 1.3 1.4 ...
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Low Cost Green-Mode PWM Controller for Flyback Converters OPERATION DESCRIPTION SG6848 devices integrate many useful designs into one controller for low-power switch-mode power supplies. The following descriptions highlight some of the features of the SG6848 series. Start-up Current The start-up ...
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Low Cost Green-Mode PWM Controller for Flyback Converters Under Voltage Lockout (UVLO) The turn-on and turn-off thresholds of the SG6848 are fixed internally at 16.3V/11.7V. During start-up, the hold-up capacitor must be charged to 16.3V through the start-up resistor, so ...
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Low Cost Green-Mode PWM Controller for Flyback Converters REFERENCE CIRCUIT Circuit BD1 CX1 - + GND GATE VDD SENSE R9 BOM Reference ...
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Low Cost Green-Mode PWM Controller for Flyback Converters PACKAGE INFORMATION 8 PINS -- DIP ( Dimensions Millimeters Symbol Min 0.381 A2 3.175 9.017 E E1 6.223 ...
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Low Cost Green-Mode PWM Controller for Flyback Converters SOT-26 (S) b Dimensions Millimeters Symbol Min 0.90 b 0. 0.10 R1 0.10 0 ˚ θ˚ θ ...
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Low Cost Green-Mode PWM Controller for Flyback Converters 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 ...