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MCP73811 bảng dữ liệu(PDF) 9 Page - Microchip Technology |
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MCP73811 bảng dữ liệu(HTML) 9 Page - Microchip Technology |
9 / 22 page © 2007 Microchip Technology Inc. DS22036A-page 9 MCP73811/2 3.0 PIN DESCRIPTION The descriptions of the pins are listed in Table 3-1. TABLE 3-1: PIN FUNCTION TABLES 3.1 Charge Enable Input (CE) A logic High enables battery charging. A logic Low disables battery charging. The charge enable input is compatible with 1.8V logic. 3.2 Battery Management 0V Reference (VSS) Connect to negative terminal of battery and input supply. 3.3 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 1 µF to ensure loop stability when the battery is disconnected. 3.4 Battery Management Input Supply (VDD) A supply voltage of [VREG (typ.) + 0.3V] to 6V is recommended. Bypass to VSS with a minimum of 1 µF. 3.5 Current Regulation Set (PROG) For the MCP73811, the current regulation set input (PROG) functions as a digital input selection. A logic Low selects a 85 mA charge current; a logic High selects a 450 mA charge current. For the MCP73812, the charge current is set by placing a resistor from PROG to VSS. Pin Number Symbol Function SOT-23-5 1 CE Active High Charge Enable 2VSS Battery Management 0V Reference 3VBAT Battery Charge Control Output 4VDD Battery Management Input Supply 5 PROG Current Regulation Set and Charge Control Enable |
Số phần tương tự - MCP73811 |
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Mô tả tương tự - MCP73811 |
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