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XC6215B1527R Datasheet(PDF) 10 Page - Torex Semiconductor |
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XC6215B1527R Datasheet(HTML) 10 Page - Torex Semiconductor |
10 / 36 page 10/36 XC6215 Series ■ OPERATIONAL EXPLANATION ■ NOTES ON USE ● XC6215B Series (As for the XC6215P Series, with no CE pin) 1. Please use this IC within the stated absolute maximum ratings. The IC is liable to malfunction should the ratings be exceeded. 2. Where wiring impedance is high, operations may become unstable due to noise and/or phase lag depending on output current. 3. As for the XC6215 series, internally achieved phase compensation makes a stable operation of the IC possible even when there is no output capacitor (CL). In order to stabilize the VIN’s voltage level, we recommend that an input capacitor (CIN) of about 0.1 to 1.0μF be connected between the VIN pin and the VSS pin. Moreover, during transient response, so as to prevent an undershoot or overshoot, we recommend that the output capacitor (CL) of about 0.1 to1.0μF be connected between the VOUT pin and the VSS pin. However, please wire the input capacitor (CIN) and the output capacitor (CL) as close to the IC as possible. <Short Protection Circuit> The XC6215 series’ regulator offers circuit protection by means of a built-in foldback circuit. When the load current reaches the current limit level, the fixed current limiter circuit operates and output voltage drops. As a result of this drop in output voltage, the foldback circuit operates, the output voltage drops further and output current decreases. When the output pin is shorted, a current of about 50mA flows. <CE Pin> The IC's internal circuitry can be operated or shutdown via the signal from the CE pin with the XC6215B series. In shutdown mode, output at the VOUT pin will be pulled down to the VSS level via R1 & R2. Note that the XC6215 series’ regulator is “High Active/No Pull-Down”, operations will become unstable with the CE pin open. We suggest that you use this IC with either a VIN voltage or a VSS voltage input at the CE pin. If this IC is used with the correct specifications for the CE pin, the operational logic is fixed and the IC will operate normally. However, supply current may increase as a result of through current in the IC's internal circuitry. <Output Voltage Control> The voltage divided by resistors R1 & R2 is compared with the internal reference voltage by the error amplifier. The P-channel MOSFET, which is connected to the VOUT pin, is then driven by the subsequent output signal. The output voltage at the VOUT pin is controlled and stabilized by a system of negative feedback. The current limit circuit and short protect circuit operate in relation to the level of output current. Further, the IC's internal circuitry can be operated or shutdown via the CE pin's signal. ON/OFF Control each circuit Error Amp - + Current Limit VIN VSS VOUT R1 R2 Voltage Reference CE |
Similar Part No. - XC6215B1527R |
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Similar Description - XC6215B1527R |
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