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MCP2021 数据表(PDF) 13 Page - Microchip Technology |
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MCP2021 数据表(HTML) 13 Page - Microchip Technology |
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13 / 46 page ![]() © 2009 Microchip Technology Inc. DS22018E-page 13 MCP2021/2 FIGURE 1-7: VOLTAGE REGULATOR OUTPUT ON OVERCURRENT SITUATION 1.7 ICSP™ Considerations The following should be considered when the MCP2021/2 is connected to pins supporting in-circuit programming: • Power used for programming the microcontroller can be supplied from the programmer, or from the MCP2021/2. • The voltage on VREG should not exceed the maximum output voltage of VREG. Note 1: IREG less than 50 mA, regulator on. 2: After IREG exceeds IREGmax, voltage regulator output will be reduced until VREG off is reached. 5.0 3.5 3 0 (1) (2) t 0 t 50 6 IREG mA VREG V |
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