RT9524 RICHTEK [Richtek Technology Corporation], RT9524 Datasheet
RT9524
Related parts for RT9524
RT9524 Summary of contents
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... The RT9524 provides protection functions such as under voltage protection, over voltage protection for VIN supply and thermal protection for battery temperature. The RT9524 is available in a WDFN-10L 3x2 package to achieve optimized solution for PCB space and thermal considerations. Ordering Information ...
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... ISET 3, 7, GND 11 (Exposed Pad) 4 LDO 5 IEOC 6 EN/SET 8 CHGSB 9 PGB 10 BATT Function Block Diagram VIN IEOC www.richtek.com 2 RT9524 1 VIN BATT PGB CHGSB 2 LDO 4 ISET 5 EN/SET 6 R ISET IEOC GND R IEOC The Input Power Source. Charging Current Setting. Ground. The exposed pad must be soldered to a large PCB and connected to GND for maximum power dissipation ...
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... Test Conditions V POR V OVP V = 4.5V, EN/SET = High BATT V = 4.5V, EN/SET = Low BATT 0°C to 85° 0mA LOAD V Rising OUT I USB100 Mode PRECHG USB500 Mode or ISET Mode, ratio of fast-charge current RT9524 − 65°C to 150°C Min Typ Max Unit 3.15 3.3 3.45 200 -- 300 6.9 6.7 7.1 200 -- 300 -- 75 150 ...
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... RT9524 Parameter IEOC Setting Current IEOC Setting K EOC VIN Power FET R DS(ON) ISET Set Voltage ISET Short Protect Threshold ISET Short Protect Deglitch Time ISET Short Protect Maximum Current VIN Charge Current EN/SET Pull Low Resistor Logic-High EN/SET Voltage Logic-Low LDO On-Resistance ...
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... VOUT Sleep Leakage Current vs. Battery Voltage 50 75 100 125 100 VOUT Regulation Voltage vs. Temperature -50 - Temperature (° 1.3 1.7 2.1 2.5 2.9 3.3 Battery Voltage (V) LDO Voltage vs. Temperature 4.95 4.93 4.91 4.89 4. 4.85 -50 - Temperature (°C) RT9524 100 125 3.7 4.1 4.5 = 5.5V 50mA LDO 75 100 125 www.richtek.com 5 ...
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... RT9524 ISET Mode Charge Current vs. Input Voltage 900 825 R = 680 750 675 600 525 450 R = 1.2k 375 300 4.5 4.9 5.3 Input Voltage(V) USB 100 Mode Charge Current vs. Input Voltage 100 4.5 4.9 5.3 Input Voltage (V) Power (5V/Div) PGB (2V/Div) CHGSB (2V/Div) I CHARGER (500mA/Div 3.8V, R BATT Time (10ms/Div) www ...
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... ISET VBATT (200mV/Div) = 3.8V 5mA to 50mA LDO VIN (5V/Div) VBATT (5V/Div) EN/SET (2V/Div 5V BATT Time (1ms/Div) Factory Mode VIN (5V/Div) EN/SET (1V/Div) I OUT (1A/Div 5V 44μ OUT Time (50μs/Div) RT9524 = 3.8V 680Ω ISET = 10Ω to 2.3Ω OUT www.richtek.com 7 ...
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... The RT9524 needs to be restarted to reset the charge current. Once the EN/ SET input is held high for more than 1.5ms, the RT9524 is disabled. Table 1. Pulse Counting Map for EN/SET Interface ...
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... Factory Mode The RT9524 provides factory mode for supplies up to 2.3A for powering external loads with no battery installed and BATT is regulated to 4.2V. The factory mode allows the user to supply system power with no battery connected. ...
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... This feature prevents draining the battery during the absence of input supply. Temperature Regulation and Thermal Protection In order to maximize charge rate, the RT9524 features a junction temperature regulation loop. If the power dissipation of the IC results in a junction temperature greater than the thermal regulation threshold (125°C), the ...
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... Ambient Temperature (°C) Figure 4. Derating Curve for RT9524 Package Layout Consideration The RT9524 is a fully integrated low cost single-cell Li- Ion battery charger IC ideal for portable applications. Careful PCB layout is necessary. For best performance, place all peripheral components as close to the IC as possible. A short connection is highly recommended ...
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... RT9524 Outline Dimension Symbol Richtek Technology Corporation Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 Information that is provided by Richtek Technology Corporation is believed to be accurate and reliable. Richtek reserves the right to make any change in circuit design, specification or other related things if necessary without notice at any time ...