STK428-640

STK428-640 www.DataSheet4U.com D 2ch 150W θ ° ° ° ° Ω Ω STK428-640 Ω Ω Ω Ω Ω www.DataSheet4U.com Ω 78.0 70.0 9.0 5.0 21.0 32.0 3.6 1 2.0 (8.0) 0.5 28 0.4 2.9 5.5 27X2.0=54.0 4.0 25.8 STK428-640 Ω Ω www.DataSheet4U.com Ω Ω Æ STK428-640 Control Chip OCM 20 ENA 21 5 FBPWM1 TEST 8 Driver Chip1 Voltage Check Global Protection Rec. Soft Limit Current Detect High Drive Current Detect COM/MECC Control Ch1 Comp arator Reciever DeadTime Low Drive 3 VS1 COM/MECC Control Ch2 Comp arator Current Detect High Shift Current Detect Reciever DeadTime Synchro Circuit Thermal Warning Driver Chip2 Low Drive 27 VS2 1 VDR 26 PWM2 4 PWM1 2 VD1 DCG 19 Current Prot / HF Prot 6 ZB1 7 FB1 VDCK 17 VSCK 18 www.DataSheet4U.com Inverting IN1- 12 AGND1 13 Non-Inverting IN2+ 14 AGND2 15 Level Shift Rec. Soft Limit 28 VD2 Level Shift VDD 9 AGND 10 VSS 11 SYN 22 SUB 16 NTC 25 FBPWM2 23 FB2 Current Prot / HF Prot 24 ZB2 STK428-640 FBPWM1 FBPWM2 AGND1 AGND2 PWM1 PWM2 AGND VDCK VSCK TEST OCM DCG IN2+ VDR VDD SYN SUB ENA VSS VD1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 C52 R52 R53 R01 R54 R61 C54 TR2 C12 C17 C53 R55 C55 R56 C13 C18 R57 VDR L2 C05 C03 C10 R50 C50 R51 C14 C51 R60 C11 C02 C04 L3 C07 R03 C15 VD C01 L1 VS GND www.DataSheet4U.com TR1 R02 R04 C09 L4 C06 C08 R58 R62 R59 OUT2+ OUT24-8Ω Load VDD C25 AGND C24 R10 R08 VSS OUT1+ OUT14-8Ω Load IN1AGND1 IN2+ AGND2 C23 IC1 C22 ON disable SYN OC...