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XC612D2533ML Datasheet(PDF) 8 Page - Torex Semiconductor |
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XC612D2533ML Datasheet(HTML) 8 Page - Torex Semiconductor |
8 / 13 page XC612 Series 176 2 XC612N Series XC612N Series IN (includes through current) voltage drop 1. Voltage detector 2's input voltage (VIN2) An input protect diode is connected from input detector 2's input (VIN2) to input detector 1's input. Therefore, should the voltage applied to VIN2 exceed VIN1, current will flow through VIN1 via the diode. (refer to diagram1) 2. Oscillation as a result of through current Since the XC612 series are CMOS ICs, through current will flow when the IC's internal circuit switching operates (during release and detect operations). Consequently, oscillation is liable to occur as a result of drops in voltage at the through current's resistor (RIN) during release voltage operations. (refer to diagram 2) Since hysteresis exists during detect operations, oscillation is unlikely to occur. 1. Please use this IC within the specified maximum absolute ratings. 2. Please ensure that input voltage VIN2 is less than VIN1 + 0.3V. (refer to N.B. 1 below) 3. With a resistor connected between the VIN1 pin and the input, oscillation is liable to occur as a result of through current at the time of release. (refer to N.B. 2 below) 4. With a resistor connected between the VIN1 pin and the input, detect and release voltage will rise as a result of the IC's sup- ply current flowing through the VIN1 pin. 5. In order to stabilise the IC's operations, please ensure that the VIN1 pin's input frequency's rise and fall times are more than 5 µ sec/V. 6. Should the power supply voltage VIN1 exceed 6V, voltage detector 2's detect voltage (VDF2) and the release voltage (VDR2) will shift somewhat. 7. For CMOS output products, high level output voltage which is generated when the transient response is released becomes input voltage of VIN. ■N.B. Diagram 1. Voltage detector 2's input voltage VIN2 Diagram 2. Through current oscillation VDET1 VDET2 VIN1 VIN2 RIN ×ISS* VIN1 VIN2 RIN VSS ISS* GN.B. ■Directions for use GNotes on Use 02S_05XC612 02.09.12 14:15 ページ 176 |
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