MD1423R

DC-DC Converter Power IC R/C L.Active 18 ON Vref 11 ON /OFF Control 19 Vcc Vboot 20 UVLO Start= 7.2V Stop= 6.7V BOOT Vref = 6.5V VB 8 HighSide Vref =VOUT+ 5.8V VGH 7 VDD 36 Bandgap Reference 5.0V 5% Error Amp 2.45V 13 amp- 12 ampOUT TSD 100 150 High / Low MOS OFF HighSide Driver PWM Comp OSC 3V 1V Q RS CLM Vth= 0.1 0.2V Dead Time Control LowSide Vref= 6.5V LowSide Driver VOUT 1,2, 22 25 P.GND 26 10 OSC 14 15 16 9,17 21 S/S OCL- OCL+ GND VGL Vi GND Vo GND SHINDENGEN MD1423R P 5.3V 1 26 2 25 3 24 4 23 5 22 6 21 7 20 8 19 9 18 10 17 11 16 12 15 13 14 1, 2, 22 25 36 7 8 9, 17 10 11 12 13 VOUT VDD VGH VB GND OSC Vref ampOUT amp- 14 15 16 18 19 20 21 26 S/S OCL OCL+ R/C VCC Vboot VGL P.GND Specifications www.shindengen.co.jp/product/semi/ U095-6 37 DC-DC Converter Power IC MOSFET ave peak OCL ,OCL / V V I I V V 1 CEM-3 50.8 50.8mm2 3 PD1 ja1 jc1 1 1mm PD2 PD1 PD2 Ta-ope Tstg Tj ja1 ja2 jc1 jc2 ja2 jc2 300mm2 2 42 42 3 4 5.5 5.5 1.1 1.5 30 85 40 150 150 110 87 55 30 2 Ta=25 V V A A V V W W /W /W /W /W Ta= 10 85 Ta= 30 10 4 5 6 High side MOSFET Di Low side MOSFET Di IC OFF ON OFF BOOT 1 f=100kHz 2 f=300kHz 3 f=500kHz SoftStart ErrorAmp Specifications Tj 30 125 Vi 8 40 Vi 8.5 40 V 2.5 12 frq 100 500 V V V kHz Tj=100 V I R V V I R V V V V I I V V I Vboot Vref frq frq frq Vth I Vamp T I =1mA, V =0V V =42V, V =0V I =1.2A, V =4.5V I =1.2A, V =0V I =1mA, V =0V V =42V, V =0V I =1.2A, V =4.5V I =1.2A, V =0V V =8 40V, f=300kHz V =8 ...