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XC9501B092AL Datasheet(PDF) 7 Page - Torex Semiconductor |
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XC9501B092AL Datasheet(HTML) 7 Page - Torex Semiconductor |
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7 / 24 page  Notes 1) 2) 3) 4) 5) ! Typical Application Circuit 1 VDD connected to VOUT1 2 VDD connected to VIN EFFI={ [ (Output voltage) x (Output current) ] / [ (Input voltage) x (Input Current) ] } x 100 Although the IC's step-up operations start from a V DD 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. Please be careful not to exceed the breakdown voltage level of the peripheral parts. Although the IC's switching operations start from a V IN of 0.9V, the IC's power supply pin (VDD) and output voltage monitor pin (FB2) should be connected to V OUT2. With operations from V IN=0.9V, the 1st channel's (output 1) E N1 pin should be set to disable. Once ouput voltage V OUT2 is more than 2.0V, the EN1 pin should be set to enable. Although the IC's switching operations start from a V IN of 0.9V, the IC's power supply pin (VDD) and output voltage monitor pin (FB1) should be connected to V OUT1. With operations from V IN=0.9V, the 2nd channel's (output 2) E N2 pin should be set to disable. Once ouput voltage V OUT1 is more than 2.0V, the EN2 pin should be set to enable. XC9501 Series 2ch. Step-up DC/DC Controller ICs. Tr2 CIN Tr1 L2 RFB12 CFB1 L1 VIN 1 EXT1 2 VDD 3 FB1 FB2 8 GND 9 EXT2 10 4 PWM1 PWM2 7 5 EN1 EN2 6 RFB21 RFB22 CFB2 + VOUT2 SD2 CL2 RFB11 SD1 VPWM2 VEN2 VEN1 VPWM1 CL1 + VOUT1 L1 VIN 1 EXT1 2 VDD 3 FB1 FB2 8 GND 9 EXT2 10 4 PWM1 PWM2 7 5 EN1 EN2 6 RFB21 RFB22 CFB2 + VOUT2 SD2 CL2 RFB11 SD1 VPWM2 VEN2 VEN1 VPWM1 CL1 + VOUT1 Tr2 CIN Tr1 L2 RFB12 CFB1 L1 VIN 1 EXT1 2 VDD 3 FB1 FB2 8 GND 9 EXT2 10 4 PWM1 PWM2 7 5 EN1 EN2 6 RFB21 RFB22 CFB2 + VOUT2 SD2 CL2 RFB11 SD1 VPWM VEN2 VEN1 VPWM1 CL1 + VOUT1 L1 VIN 1 EXT1 2 VDD 3 FB1 FB2 8 GND 9 EXT2 10 4 PWM1 PWM2 7 5 EN1 EN2 6 RFB21 RFB22 CFB2 + VOUT2 SD2 CL2 RFB11 SD1 VPWM2 VEN2 VEN1 VPWM1 CL1 + VOUT1 CDD 7 |
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