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BM1Q001FJ-E2 Datasheet(PDF) 3 Page - Rohm |
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BM1Q001FJ-E2 Datasheet(HTML) 3 Page - Rohm |
3 / 29 page 3/25 Datasheet Datasheet BM1Q00XFJ Series TSZ02201-0F2F0A200110-1-2 17.JUN.2015 Rev.003 © 2015 ROHM Co., Ltd. All rights reserved. www.rohm.com TSZ22111・15・001 ●IC control unit Electrical Characteristics (Unless otherwise noted, Ta = 25 C, VCC = 15 V) Parameter Symbol Specifications Unit Conditions MIN TYP MAX [ DC/DC converter unit (Turn-off)] Pull-up resistor of FB pin RFB 22.5 30.0 37.5 kΩ FB=0V CS over current voltage 1A Vlim1A 0.475 0.500 0.525 V FB=2.2V (ACSNS=L) CS over current voltage 1B Vlim1B 0.310 0.350 0.390 V FB=2.2V (ACSNS=H) CS over current voltage 2A Vlim2A 0.100 0.125 0.150 V FB=0.5V (ACSNS=L) CS over current voltage 2B Vlim2B 0.062 0.088 0.113 V FB=0.5V (ACSNS=H) Voltage gain1 (Δ VFB/ΔVCS) AVCS1 3.40 4.00 4.60 V/V ACSNS=L Voltage gain 2 (Δ VFB/ΔVCS) AVCS2 4.86 5.71 6.57 V/V ACSNS=H ZT current switched CS 1 IZT1 0.93 1.00 1.07 mA ZT current switched CS 2 IZT2 0.82 0.90 0.98 mA ZT current hysteresis switched CS voltage IZTHYS - 0.10 - mA CS Leading Edge Blanking TLEB - 0.250 - us Turn-off time TOFF - 0.150 - us Minimum ON width Tmin - 0.400 - us TLEB+TOFF Maximum ON width Tmax 30.0 39.0 50.7 us [ DC/DC converter unit (Turn-on)] ZT input current 1 IZT1 4 14 24 uA OUT=L, ZT=4.65V ZT input current 2 IZT2 6 16 26 uA OUT=L, ZT=5.00V ZT input current 3 IZT3 8 18 28 uA OUT=L, ZT=5.35V Max frequency 1 FSW1 108 120 132 kHz FB=2.0V Max frequency 2 FSW2 21 30 39 kHz FB=0.5V Frequency reduction start voltage VFBSW1 1.10 1.25 1.40 V Frequency reduction end voltage VFBSW2 0.42 0.50 0.58 V ZT comparator voltage1 VZT1 60 100 140 mV ZT fall ZT comparator voltage2 VZT2 120 200 280 mV ZT rise ZT trigger mask time TZTMASK - 0.6 - us In OUT H ->L, prevent noise ZT trigger Timeout1 TZTOUT1 10.5 15.0 19.5 us ZT trigger Timeout2 TZTOUT2 3.5 5.0 6.5 us From final ZT trigger [DC/DC protection ] Soft start time1 TSS1 0.35 0.50 0.65 ms Soft start time 2 TSS2 0.70 1.00 1.30 ms Soft start time 3 TSS3 1.40 2.00 2.60 ms Soft start time 4 TSS4 2.80 4.00 5.20 ms FB Burst voltage VBURST1 0.42 0.50 0.58 V Burst ON FB OLP voltage a VFOLP1A 2.6 2.8 3.0 V FBOLP detect(FB rise) FB OLP voltage b VFOLP1B - 2.6 - V FBOLP detect(FB fall) FB OLP delay timer TFOLP 44.8 64 83.2 ms FBOLP stop timer TOLPST 358 512 666 ms Latch released voltage ( VCC pin voltage) VLATCH - VUVLO2 – 0.50 - V Latch mask time TLATCH 50 100 200 ms ZT OVP voltage VZTL 4.65 5.00 5.35 V [BM1Q002FJ] * Definition of ACSNS (L : ZT current<IZT1 、H : ZT current > IZT1) |
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