MCP73843 MICROCHIP [Microchip Technology], MCP73843 Datasheet

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... Polymer battery packs. Two preset voltage regulation options are available (4.1V and 4.2V) for use with either coke or graphite anodes. The MCP73841 and MCP73843 operate with an input voltage range of 4.5V to 12V. The MCP73842 and MCP73844 are designed for applications utilizing dual series cell Lithium-Ion or Lithium-Polymer battery packs ...

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MCP73841/2/3/4 Functional Block Diagram – SENSE Charge Current Amplifier Charge REF Termination Comparator /10 REG - 10 k UVLO Comparator + - V UVLO ...

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... Electrical Specifications: Unless otherwise indicated, all limits apply for V Typical values are at +25° (Typ) + 1V]. DD REG Parameters Sym Supply Input Supply Voltage V MCP73841, MCP73843 MCP73842, MCP73844 Supply Current UVLO Start Threshold V START MCP73841, MCP73843 MCP73842, MCP73844 UVLO Stop Threshold V MCP73841, MCP73843 ...

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... MCP73843-4.2 MCP73842-8.2, MCP73844-8.2 MCP73842-8.4, MCP73844-8.4 Charge Termination Charge Termination Threshold V Automatic Recharge Recharge Threshold Voltage V MCP73841, MCP73843 MCP73842, MCP73844 External MOSFET Gate Drive Gate Drive Current I Gate Drive Minimum Voltage V DRVMIN Gate - Source Clamp Voltage V Thermistor Reference - MCP73841, MCP73842 Thermistor Reference Output ...

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DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise indicated, all limits apply for V Typical values are at +25° (Typ) + 1V]. DD REG Parameters Sym Enable Input Input High-Voltage Level Input Low-Voltage Level Input Leakage Current AC ...

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MCP73841/2/3/4 2.0 TYPICAL PERFORMANCE CURVES Note: The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested ...

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Note: Unless otherwise indicated 8.408 MCP73842-8.4V 8.406 V DD 8.404 +55°C 8.402 +25°C 8.400 8.398 8.396 8.394 -5°C 8.392 8.390 10 100 I (mA) OUT FIGURE 2-7: Battery Regulation Voltage (V ) vs. Charge Current (I ). BAT ...

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MCP73841/2/3/4 Note: Unless otherwise indicated 0.45 MCP73841-4.2V 0. Float DD 0.35 0.30 0.25 +85°C 0.20 0.15 +25°C 0.10 0.05 -45°C 0.00 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 V (V) BAT ...

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Note: Unless otherwise indicated MCP73841-4.2V V Stepped From 5. OUT µF, X7R, Ceramic OUT FIGURE 2-19: Line Transient Response. MCP73841-4. 5. µF, ...

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... MCP73841/2/3/4 3.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 3-1. TABLE 3-1: PIN DESCRIPTION TABLE MCP73841, MCP73843, MCP73842 MCP73844 Pin No. Pin No — 6 — 3.1 Charge Current Sense Input (SENSE) Charge current is sensed via the voltage developed across an external precision sense resistor ...

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... This input is tied directly to the positive BAT terminal of the battery. The MCP7384X is offered in four fixed-voltage versions for single or dual series cell battery packs with either coke or graphite anodes: - 4.1V (MCP73841-4.1, MCP73843-4.1) - 4.2V (MCP73841-4.2, MCP73843-4.2) - 8.2V (MCP73842-8.2, MCP73844-8.2) - 8.4V (MCP73842-8.4, MCP73844-8.4) 4.4 Charge Cycle Completion and Automatic Re-Charge The MCP7384X monitors the charging current during the constant-voltage regulation phase ...

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Note: The qualification parameters are continuously monitored throughout the charge cycle. Preconditioning Phase Charge Current = I PREG Reset Safety Timer Yes V > V BAT PTH No Fault Yes Safety Timer Charge Current = 0 Expired Reset Safety Timer ...

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DETAILED DESCRIPTION 5.1 Analog Circuitry 5.1.1 CHARGE CURRENT SENSE INPUT (SENSE) Fast charge current regulation is maintained by the voltage drop developed across an external sense resistor (R ) applied to the SENSE input pin. The SENSE following formula ...

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... BAT terminal of the battery. The MCP7384X is offered in four fixed-voltage versions for single or dual series cell battery packs, with either coke or graphite anodes: - 4.1V (MCP73841-4.1, MCP73843-4.1) - 4.2V (MCP73841-4.2, MCP73843-4.2) - 8.2V (MCP73842-8.2, MCP73844-8.2) - 8.4V (MCP73842-8.4, MCP73844-8.4) 5.1.7 DRIVE OUTPUT (DRV) The MCP7384X controls the gate drive to an external P-channel MOSFET ...

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APPLICATIONS The MCP7384X is designed to operate in conjunction with either a host microcontroller or in stand-alone applications. The MCP7384X provides the preferred charge algorithm for Lithium-Ion and Lithium-Polymer Voltage Regulated Optional Wall Cube Reverse Blocking Diode R T2 ...

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MCP73841/2/3/4 6.1 Application Circuit Design Due to the low efficiency of linear charging, the most important factors are thermal design and cost, which are a direct function of the input voltage, output current and thermal impedance between the external P-channel ...

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Worst-case V with a 5V, ±10% input voltage source GS and a maximum sink voltage of 1.0V is 1.0V – 4.5V 120mV – this worst-case (V ) the R of the MOSFET GS DSON must ...

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... MCP73841/2/3/4 7.0 PACKAGING INFORMATION 7.1 Package Marking Information 8-Lead MSOP (MCP73843, MCP73844) XXXXX YWWNNN 10-Lead MSOP (MCP73841, MCP73842) XXXXX YYWWNNN Legend: XX...X Customer specific information* YY Year code (last 2 digits of calendar year) WW Week code (week of January 1 is week ‘01’) NNN Alphanumeric traceability code ...

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Plastic Micro Small Outline Package (MS) (MSOP (F) β Dimension Limits Number of Pins Pitch Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width Overall Length Foot Length Footprint (Reference) Foot ...

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MCP73841/2/3/4 10-Lead Plastic Micro Small Outline Package (UN) (MSOP (F) Dimension Limits Number of Pins Pitch Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width Overall Length Foot Length Footprint Foot Angle ...

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... MCP73842-820I/UN: 8.2V Preset Voltage b) MCP73842T-820I/UN: 8.2V Preset Voltage, c) MCP73842-840I/UN: 8.4V Preset Voltage d) MCP73842T-840I/UN: 8.4V Preset Voltage, a) MCP73843-410I/MS: 4.1V Preset Voltage b) MCP73843T-410I/MS: 4.1V Preset Voltage, c) MCP73843-420I/MS: 4.2V Preset Voltage d) MCP73843T-420I/MS: 4.2V Preset Voltage, a) MCP73844-820I/MS: 8.2V Preset Voltage b) MCP73844T-820I/MS: 8.2V Preset Voltage, c) MCP73844-840I/MS: 8.4V Preset Voltage d) MCP73844T-840I/MS: 8.4V Preset Voltage, . Tape and Reel Tape and Reel ...

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MCP73841/2/3/4 NOTES: DS21823B-page 22 2004 Microchip Technology Inc. ...

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Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families ...

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