MP2618 MPS, MP2618 Datasheet
MP2618
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MP2618 Summary of contents
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... Other safety features include battery temperature monitoring, charge status programmable timer to cease the charging cycle. The MP2618 is available in a 28-pin, 4mmx5mm QFN package. MP2618 Rev. 0.92 7/14/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2-3 Cell Switching Li-Ion Battery Charger ...
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... MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER TYPICAL APPLICATION C10 10µF R1 510 R2 510 C2 4.7µF C1 10µ 10k 10µF R NTC 10k ON OFF MP2618 Rev. 0.92 7/14/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. RS2 20m RG2 ...
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... MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER Part Number* MP2618EV 4mmx5mm QFN28 * For Tape & Reel, add suffix –Z (eg. MP2618EV–Z). For RoHS compliant packaging, add suffix –LF (eg. MP2618EV–LF–Z) ABSOLUTE MAXIMUM RATINGS Supply Voltage V ....................................... 26V IN V ........................................-0. ...
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... MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER ELECTRICAL CHARACTERISTICS V = 19V +25°C, CELLS=0V, unless otherwise noted Parameters Terminal Battery Voltage CSP, BATT Current Switch On Resistance Switch Leakage Peak Current Limit CC current Trickle charge current Trickle charge voltage threshold ...
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... MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER ELECTRICAL CHARACTERISTICS V = 19V +25°C, CELLS=0V, unless otherwise noted Parameters EN Input Current Supply Current (Shutdown) Supply Current (Quiescent) Thermal Shutdown VREF25 output voltage VREF33 output voltage VREF33 load regulation Input Current Sense Section ...
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... It is connected between SW and BST pins to form a floating supply across the power switch driver. 25 Switch Output. Power Supply Voltage. The MP2618 operates from a +5.5V to +24V unregulated input. 27 PIN C1 is needed to prevent large voltage spikes from appearing at the input. 28 AIN Controller Supply Voltage ...
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... MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER TYPICAL PERFORMANCE CHARACTERISTICS V =19V, C1=10µF, C2=4.7µF, C9=22µF, L=4.7µH, RS1=110mΩ, RS2=20mΩ, Real Battery Load =25ºC, unless otherwise noted Cells Battery Charge Curve 8.5 2.5 8.4 8 BATT 8.2 8.1 1.5 8 7.9 1 7.8 I BATT 7.7 0.5 7.6 7 ...
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... MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER TYPICAL PERFORMANCE CHARACTERISTICS V =19V, C1=10µF, C2=4.7µF, C9=22µF, L=4.7µH, RS1=110mΩ, RS2=20mΩ, Real Battery Load =25ºC, unless otherwise noted. A Efficiency vs =7.4V, I =2A BATT CHG Cells Battery ...
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... MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER TYPICAL PERFORMANCE CHARACTERISTICS V =19V, C1=10µF, C2=4.7µF, C9=22µF, L=4.7µH, RS1=110mΩ, RS2=20mΩ, Real Battery Load =25ºC, unless otherwise noted. A MP2618 Rev. 0.92 7/14/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. ...
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... MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER TYPICAL PERFORMANCE CHARACTERISTICS V =19V, C1=10µF, C2=4.7µF, C9=22µF, L=4.7µH, RS1=110mΩ, RS2=20mΩ, Real Battery Load =25ºC, unless otherwise noted. A Power Path Management_Current Sharing 2 Cells 2A 7.4V CHG BATT V IN 10V/div. V BATT 5V/div ...
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... MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER OPERATION The MP2618 is a peak current mode controlled switching charger for use with Li-Ion batteries. Figure 2 shows the block diagram. At the beginning of a cycle off. The COMP voltage is higher than the current sense result from amplifier A1’ ...
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... MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER Negative Thermal Coefficient Thermistor The MP2618 has a built-in NTC resistance window comparator, which allows MP2618 to sense the battery temperature via the thermistor packed internally in the battery pack to ensure a safe operating environment of the battery. A ...
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... MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER BLOCK DIAGRAM MP2618 Rev. 0.92 7/14/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. Figure 2—Function Block Diagram www.MonolithicPower.com © 2010 MPS. All Rights Reserved. 13 ...
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... MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER CHARGE PROFILE AND POWER PATH MANAGEMENT FUNCTION Figure 3—Li-Ion Battery Charge Profile I SYS CC Charge I CHG Figure 4 — Power Path Management Function- Current Sharing MP2618 Rev. 0.92 7/14/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. ...
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... MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER OPERATION FLOW CHART V BATT_TC V =12.6V BATT_FULL V BATT_RECHG Normal Operation V BATT No Charger “Off”, CHGOK is high No V Figure 5— Normal Charging Operation Flow Chart MP2618 Rev. 0.92 7/14/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. ...
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... MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER OPERATION FLOW CHART Normal Operation Charger “On”, CHGOK is low Charge Mode? V >V V <V BATT BATT_FULL BATT_TC C.V <I CHG BF V BATT Battery Full? Yes Charger “Off”, CHGOK is high Yes No V < ...
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... MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER APPLICATION INFORMATION Setting the Charge Current 1. Standalone Switching Charger The charge current of MP2618 is set by the sense resistor RS1. The programmable formula is as following: 200mV ( ) = CHG RS1 mΩ 2. Switching Charger with ...
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... MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER Selecting the Inductor A 1µH to 10µH inductor is recommended for most applications. The inductance value can be derived from the following equation. × − OUT IN OUT L × ∆ × ...
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... MP2618 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER PACKAGE INFORMATION 3.90 4.10 PIN 1 ID MARKING PIN 1 ID INDEX AREA TOP VIEW 0.20 REF SIDE VIEW 3.90 2.70 0.70 0.25 0.50 RECOMMENDED LAND PATTERN NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications. ...