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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) 4 Page - Microchip Technology |
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MCP73831-2ACI/MC датащи(HTML) 4 Page - Microchip Technology |
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4 / 28 page  MCP73831/2 DS21984E-page 4 © 2008 Microchip Technology Inc. Preconditioning Current Regulation (Trickle Charge Constant-Current Mode) Precondition Current Ratio IPREG / IREG 7.5 10 12.5 % PROG = 2.0 k Ω to 10 kΩ 15 20 25 % PROG = 2.0 k Ω to 10 kΩ 30 40 50 % PROG = 2.0 k Ω to 10 kΩ — 100 — % No Preconditioning TA = -5°C to +55°C Precondition Voltage Threshold Ratio VPTH / VREG 64 66.5 69 % VBAT Low-to-High 69 71.5 74 % VBAT Low-to-High Precondition Hysteresis VPHYS —110 — mV VBAT High-to-Low Charge Termination Charge Termination Current Ratio ITERM / IREG 3.75 5 6.25 % PROG = 2.0 k Ω to 10 kΩ 5.6 7.5 9.4 % PROG = 2.0 k Ω to 10 kΩ 8.5 10 11.5 % PROG = 2.0 k Ω to 10 kΩ 15 20 25 % PROG = 2.0 k Ω to 10 kΩ TA = -5°C to +55°C Automatic Recharge Recharge Voltage Threshold Ratio VRTH / VREG 91.5 94.0 96.5 % VBAT High-to-Low 94 96.5 99 % VBAT High-to-Low Pass Transistor ON-Resistance ON-Resistance RDSON — 350 — m Ω VDD = 3.75V, TJ = 105°C Battery Discharge Current Output Reverse Leakage Current IDISCHARGE — 0.15 2 µA PROG Floating —0.25 2 µA VDD Floating —0.15 2 µA VDD < VSTOP — -5.5 -15 µA Charge Complete Status Indicator – STAT Sink Current ISINK —— 25 mA Low Output Voltage VOL —0.4 1 V ISINK = 4 mA Source Current ISOURCE —— 35 mA High Output Voltage VOH —VDD-0.4 VDD - 1 V ISOURCE = 4 mA (MCP73831) Input Leakage Current ILK — 0.03 1 µA High-Impedance PROG Input Charge Impedance Range RPROG 2— 67 k Ω Minimum Shutdown Impedance RPROG 70 — 200 k Ω Automatic Power Down Automatic Power Down Entry Threshold VPDENTER VDD<(VBAT +20 mV) VDD<(VBAT +50 mV) —3.5V ≤ V BAT ≤ VREG VDD Falling Automatic Power Down Exit Threshold VPDEXIT —VDD<(VBAT +150 mV) VDD<(VBAT +200 mV) 3.5V ≤ V BAT ≤ VREG VDD Rising Thermal Shutdown Die Temperature TSD — 150 — °C Die Temperature Hysteresis TSDHYS —10 — °C DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise indicated, all limits apply for V DD= [VREG(typical) + 0.3V] to 6V, TA = -40°C to +85°C. Typical values are at +25°C, VDD = [VREG (typical) + 1.0V] Parameters Sym. Min. Typ. Max. Units Conditions Note 1: Not production tested. Ensured by design. |
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