MP2612 MPS, MP2612 Datasheet
MP2612
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MP2612 Summary of contents
Page 1
... The MP2612 requires a minimum number of readily available standard external components. The MP2612 is available in 16-pin 4mm×4mm QFN package. TYPICAL APPLICATION Figure 1—Standalone Switching Charger MP2612 Rev. 0.92 11/23/2010 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. ...
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... MP2612 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER Figure 2—Switching Charger with Power Path Management Notes: 1) ACOK should be pulled up to VIN in the power path management application. MP2612 Rev. 0.92 11/23/2010 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. ...
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... MP2612 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER Part Number* MP2612ER 4mm×4mm QFN16 *For Tape & Reel, add suffix –Z (eg. MP2612ER–Z); For RoHS compliant packaging, add suffix –LF (eg. MP MP2612ER–LF–Z) PIN 1 ID CHGOK VREF33 EXPOSED PAD ...
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... MP2612 – 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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... MP2612 – 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 Low Voltage EN Input High Voltage EN Input Current Supply Current (Shutdown) Supply Current (Quiescent) (6) Thermal Shutdown VREF25 output voltage VREF33 output voltage ...
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... It is connected between SW and BS pins to form a floating supply across the power switch driver Switch Output. Supply Voltage. The MP2612 operates from 24V unregulated input to charge 2 cell li-ion battery. Capacitor is needed to prevent large voltage spikes from appearing at the input. ...
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... MP2612 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER TYPICAL PERFORMANCE CHARACTERISTICS V =19V, C1=4.7 F, C2=22 F, L=4.7 µ µ IN otherwise noted. 2 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 7 100 120 T IME S (MIN) 3 Cells Charge Current vs. Battery Voltage CV Load 2 =15V IN 1 ...
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... MP2612 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER TYPICAL PERFORMANCE CHARACTERISTICS ( V =19V, C1=4.7 F, C2=22 F, L=4.7 µ µ IN otherwise noted. Efficiency vs. I CHG 2 Cells, V =8.4V BATT 100 V =12V V =15V =19V IN V =24V 0.4 0.8 1.2 1.6 I (A) CHG BATT Float Voltage vs Cells 8 ...
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... MP2612 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER TYPICAL PERFORMANCE CHARACTERISTICS ( V =19V, C1=4.7 F, C2=22 F, L=4.7 µ µ IN otherwise noted. Steady State Waveform Trickle Charge 2 Cells, V =5V BATT V IN 10V/div. V BATT 5V/div 10V/div. I BATT 200mA/div. Power On Waveform 2 Cells, I =2A,V =8V CHG BATT ...
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... MP2612 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER TYPICAL PERFORMANCE CHARACTERISTICS ( V =19V, C1=4.7 F, C2=22 F, L=4.7 µ µ IN unless otherwise noted. Power Path Management Current Sharing 2 Cells, I =2A, V =7.4V CHG BATT V IN 10V/div. V BATT 5V/div. I SYS 1A/div. I BATT 1A/div 10V/div. V BATT 5V/div. ...
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... MP2612 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER BLOCK DIAGRAM MP2612 Rev. 0.92 11/23/2010 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. Figure 3—Function Block Diagram www.MonolithicPower.com © 2010 MPS. All Rights Reserved. 11 ...
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... MP2612 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER OPERATION The MP2612 is a peak current mode controlled switching charger for use with Li-Ion batteries. Figure 3 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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... MP2612 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER = T 30mins TICKLE_TMR The total charge time is: = × T 3hours TOTAL_TMR Negative Thermal Coefficient Thermistor The MP2612 has a built-in NTC resistance window comparator, which allows MP2612 to sense the battery temperature via the thermistor packed internally in the battery pack to ensure a safe operating environment of the battery ...
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... MP2612 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER CHARGE PROFILE AND POWER PATH MANAGEMENT FUNCTION Figure 4—Li-Ion Battery Charge Profile I SYS CC Charge I CHG Figure 5 — Power Path Management Function- Current Sharing MP2612 Rev. 0.92 11/23/2010 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. ...
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... MP2612 – 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 6— Normal Charging Operation Flow Chart MP2612 Rev. 0.92 11/23/2010 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. ...
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... MP2612 – 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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... MP2612 – 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 MP2612 is set by the sense resistor RS1 (Figure1). The charge current programmable formula is as following: 200mV ( ) = CHG RS1 mΩ ...
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... MP2612 – 2A, 24V INPUT, 600kHz 2-3CELL SWITCHING LI-ION BATTERY CHARGER Also, any relationship between ∆I can be realized by re-calculate equation (4),(5) and (8). Selecting the Inductor A 1µH to 10µH inductor is recommended for most applications. The inductance value can be derived from the following equation. ...
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... MP2612 – 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 3.80 2.30 1.00 0.35 0.65 RECOMMENDED LAND PATTERN NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications. ...