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BD8628EFV Datasheet(PDF) 2 Page - Rohm |
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BD8628EFV Datasheet(HTML) 2 Page - Rohm |
2 / 15 page Technical Note 2/14 BD8628EFV, BD8624EFV www.rohm.com 2009.05 - Rev.A © 2009 ROHM Co., Ltd. All rights reserved. ● Electric characteristic (Ta=25℃, VCC=6.5V, GND=0V,CTL=6.5V unless otherwise specified.) Parameter Symbol specification value UNIT Condition MIN TYP MAX Circuit current 1 IQ1 - 0 10 μ A CTL=0V Circuit current 2 IQ2 - 3.4 - mA CTL=VCC < Error amplifier part > Standard voltage (VREF) VREF 0.792 0.8 0.808 V Terminal FB and FC terminal short Terminal FB Input bias current IFBB -1 0 1 μ A VFB=0.9V Terminal FC Clamping voltage H VFCH 1.8 - - V VFB=0.7V Terminal FC Clamping voltage L VFCL - - 0.2 V VFB=0.9V Terminal FC Sink current IFCSINK 0.5 - - mA VFB=0.9V, VFC=0.4V Terminal FC Source current IFCSOURCE - - -70 μ A VFB=0.7V, VFC=1.6V Open loop gain AVERR - 100 - dB <OSC part> Oscillation frequency FOSC 400 500 600 kHz When terminal RT 27kΩ is connected <Soft start > Charging current ISS -3 -2.5 -2 μ A VSS=1.0V Terminal SS Threshold voltage VSSTH 0.98 1.08 1.18 V VSS Voltage Terminal SS Clamping voltage VSSCLM 2.2 2.4 - V Terminal SS Standby voltage VSSSTB 0.1 0.15 - V VSS Voltage (L to H) Terminal SS Discharge resistance RSS 49 70 91 kΩ CTL=0V Terminal SS Protection circuit start voltage VSSPON 1.0 1.1 1.2 V VSS Voltage (L to H) Terminal SS Protection circuit start voltage Maximum hysteresis error VSSPON_HYS 10 100 200 mV VSS Voltage < Low voltage, over voltage detection part> Terminal FB Low voltage detection voltage VLVP 0.51 0.56 0.61 V VFB Voltage Terminal FB Overvoltage detection voltage VOVP 0.86 0.96 1.06 V VFB Voltage < Over current detection part> Output current limitation threshold Ilmt VCC-0.9 VCC-0.7 VCC-0.5 V VSW Voltage <Power MOS> Upper side MOS ON resistance RONU - 110 - mΩ VBOOT-VSW =5V Lower side MOS ON resistance RONL - 110 - mΩ VVREG5=5V <Others> Terminal PDET L output voltage VOL_PDET - - 0.4 V IOL=100uA Terminal CTL input voltage H level voltage VIH_CTL 2.0 - VCC V CTL terminal Terminal CTL input voltage L level voltage VIL_CTL - - 0.5 V CTL terminal Terminal CTL input current II_CTL - 60 90 μ A CTL terminal, CTL=VCC VFB : FB terminal voltage, VFC : FC terminal voltage, VSS : SS terminal voltage, VMONVCC : MONVCC terminal voltage Not designed for radiation resistance. Current capability should not exceed Pd. |
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