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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MCP73831-2ACI/MC датащи(PDF) 9 Page - Microchip Technology |
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MCP73831-2ACI/MC датащи(HTML) 9 Page - Microchip Technology |
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9 / 24 page  © 2006 Microchip Technology Inc. DS21984B-page 9 MCP73831/2 3.0 PIN DESCRIPTION The descriptions of the pins are listed in Table 3-1. TABLE 3-1: PIN FUNCTION TABLES 3.1 Battery Management Input Supply (VDD) A supply voltage of [VREG (typ.) + 0.3V] to 6V is recommended. Bypass to VSS with a minimum of 4.7 μF. 3.2 Battery Charge Control Output (VBAT) Connect to positive terminal of battery. Drain terminal of internal P-channel MOSFET pass transistor. Bypass to VSS with a minimum of 4.7 μF to ensure loop stability when the battery is disconnected. 3.3 Charge Status Output (STAT) STAT is an output for connection to an LED for charge status indication. Alternatively, a pull-up resistor can be applied for interfacing to a host microcontroller. STAT is a tri-state logic output on the MCP73831 and an open-drain output on the MCP73832. 3.4 Battery Management 0V Reference (VSS) Connect to negative terminal of battery and input supply. 3.5 Current Regulation Set (PROG) Preconditioning, fast charge and termination currents are scaled by placing a resistor from PROG to VSS. The charge management controller can be disabled by allowing the PROG input to float. Pin No. Symbol Function DFN SOT23-5 14 VDD Battery Management Input Supply 2— VDD Battery Management Input Supply 33 VBAT Battery Charge Control Output 4— VBAT Battery Charge Control Output 5 1 STAT Charge Status Output 62 VSS Battery Management 0V Reference 7 — NC No Connection 8 5 PROG Current Regulation Set and Charge Control Enable |
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