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XC9502B095AL Datasheet(PDF) 5 Page - Torex Semiconductor |
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XC9502B095AL Datasheet(HTML) 5 Page - Torex Semiconductor |
5 / 40 page ! Electrical Characteristics XC9502B093 Common Characteristics (FOSC=300kHz) Ta=25 OC VOUT1 VOUT2 VOUT1 VOUT2 Unless otherwise stated, VDD=3.0V, PWM1,2=3.0V, EN1, 2 =3.0V Output 1 Characteristics Step-up Controller Ta=25 OC Using Tr: 2SD1628, Unless otherwise stated, VDD=EN1=PWM1=3.0V, EN2=PWM2=GND, EXT2=OPEN, FB2=OPEN, VIN=1.8V Output 2 Characteristics Step-down Controller Ta=25 OC Unless otherwise stated, VDD=EN2=PWM2=3.0V, PWM1=EN1=GND, EXT1=OPEN, FB1=OPEN, VIN=5.0V Notes 1) 2) 3) 4) Although the IC's step-up operations start from a VDD of 0.8V, the output voltage and switching frequency are stabilized at VDD ≥ 2.0V. Therefore, a VDD of more than 2.0V is recommended when VDD is supplied from VIN or other power sources. Although the IC's switching operations start from a VIN of 0.9V, the IC's power supply pin (VDD) and output voltage monitor pin (FB1) should be connected to VOUT1. With operations from VIN=0.9V, the 2nd channel's (output 2) EN2 pin should be set to chip disable. Once ouput voltage VOUT1 is more than 2.0V, the EN2 pin should be set to chip enable. Please be careful not to exceed the breakdown voltage level of the peripheral parts. EFFI={ [ (Output voltage) x (Output current) ] / [ (Input voltage) x (Input Current) ] } x 100 - 0.20 V 8 PWM2 "Low" Voltage VPWML2 No Load - -- V 8 PWM2 "High" Voltage VPWMH2 No Load 0.7 22 30 Ω 6 EXT2 "Low" ON Resistance REXTBL2 FB2=0V, EXT2=0.4V - 28 47 Ω 6 EXT2 "High" ON Resistance REXTBH2 EN2=0V, EXT2=VDD-0.4V - 10.0 20.0 mS 8 Soft-Start Time2 TSS2 VOUT2 × 0.95V, EN2=0V→0.65V 5.0 92 - % 8 Efficiency2 EFFI2 IOUT2=250mA - P-ch MOSFET : XP162A12A6P 30 38 % 8 PFM Duty Ratio2 PFMDTY2 No Load, VPWM2=0V 22 -0 % 3 Minimum Duty Ratio2 MINDTY2 Same as IDD2 - -- % 3 Maximum Duty Ratio2 MAXDTY2 Same as IDD1 100 - 2.0 V 1 Minimum Operation Voltage VINmin - 0.900 0.900 V 7 FB2 Voltage VFB2 VIN=3.0V, IOUT2=10mA 0.900 TYP. MAX. UNITS TEST CIRCUIT PARAMETER SYMBOL CONDITIONS MIN. - 0.20 V 5 PWM1 "Low" Voltage VPWML1 No Load - -- V 5 PWM1 "High" Voltage VPWMH1 No Load 0.65 22 30 Ω 6 EXT1 "Low" ON Resistance REXTBL1 EN1=FB2=0V, EXT1=0.4V - 28 47 Ω 6 EXT1 "High" ON Resistance REXTBH1 FB1=0, EXT1=VDD-0.4V - 10.0 20.0 mS 5 Soft-Start Time1 TSS1 VOUT1 × 0.95V, EN1=0V→0.65V 5.0 85 - % 5 Efficiency1 (note 4) EFFI1 IOUT=130mA - N-ch MOSFET:XP161A1355P 30 38 % 5 PFM Duty Ratio1 PFMDTY1 No Load, VPWM1=0V 22 -0 % 3 Minimum Duty Ratio1 MINDTY1 Same as IDD2 - 3 Maximum Duty Ratio1 MAXDTY1 Same as IDD1 75 80 85 % 3 2.0 V 1 Oscillation Start-up Voltage1 VST2-1 FB1=0V - - 0.8 V 0.9 V 2 IOUT1=1.0mA, RFB11=200k Ω, RFB12=75kΩ Operation Start-up Voltage1 (note 2) VST1-1 -- VDD ≠ VOUT1: IOUT1=1mA -- 0.900 0.918 V 4 FB1 Voltage VFB1 VDD=3.0V, VIN=1.5V, IOUT1=10mA 0.882 TYP. MAX. UNITS TEST CIRCUIT PARAMETER SYMBOL CONDITIONS MIN. - -0.50 µA 3 FB1,2 "Low" Current VFBL FB1, 2=1.0V - - 0.50 µA 3 FB1,2 "High" Current IFBH FB1, 2=3.0V - - -0.50 µA 3 PWM1,2 "Low" Current IPWML FB1, 2=3.0V, PWM=0V - - 0.50 µA 3 PWM1,2 "High" Current IPWMH FB1, 2=3.0V, PWM=3.0V - - -0.50 µA 3 EN1,2 "Low" Current IENL EN1,2=0V, FB1,2=3.0V - - 0.50 µA 3 EN1,2 "High" Current IENH FB1,2=3.0V - - 0.20 V 3 EN1,2 "Low" Voltage VENL FB1,2=0V - -- V 3 EN1,2 "High" Voltage VENH FB1,2=0V 0.65 300 345 kHz 3 Switching Frequency FOSC Same as IDD1 255 1.0 3.0 µA 3 Stand-by Current ISTB Same as IDD1, EN1=EN2=0V - 70 150 µA 3 Supply Current 2 IDD2 FB1, 2=1.0V - 70 150 µA 3 Supply Current 1-4 IDD1-4 FB1=1.0V, FB2=0V - 100 190 µA 3 Supply Current 1-3 IDD1-3 FB1=0V, FB2=1.0V - 60 120 µA 3 Supply Current 1-2 IDD1-2 EN2=3.0V, EN1=0V, FB2=0V - 80 150 µA 3 Supply Current 1-1 IDD1-1 EN1=3.0V, EN2=0V, FB1=0V - 100 190 µA 3 Supply Current 1 IDD1 FB1, 2=0V - - 10.0 V 2 - VIN V -- V 1 - VIN V Output Voltage Range (note 3) VOUTSET VDD ≥ 2.0V, IOUT1, 2=1mA VDD ≠VOUT1 0.9 0.9 VIN ≥ 0.9V, IOUT1, 2=1mA VDD=VOUT1 2.0 0.9 -- V 1 Max. Input Voltage VIN 10.0 TEST CIRCUIT Supply Voltage (note 1) VDD 2.0 - 10.0 V 1 XC9502 Series 2ch. Step-up / down DC/DC Controller ICs PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNITS 5 |
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