RT9724 RICHTEK [Richtek Technology Corporation], RT9724 Datasheet
RT9724
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RT9724 Summary of contents
Page 1
... The RT9724 is a cost-effective, low-voltage, single N-MOSFET high-side Power Switch IC. Low switch-on resistance (typ. 100mΩ) and low supply current (typ. 50uA) are realized in this IC. The RT9724 integrates an over- current protection circuit, a short fold back circuit, a thermal shutdown circuit and an under-voltage lockout circuit for overall protection ...
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... Copyright 2012 Richtek Technology Corporation. All rights reserved. www.richtek.com 2 2.7V to 5.5V VIN VOUT C IN 1µF RT9724 Chip Enable EN Pin Name EN Chip Enable (Active High). Ground. The exposed pad must be soldered to a large PCB and GND connected to GND for maximum power dissipation. VOUT Power-Switch Output ...
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... LIM IN OUT V = 0V, Measured Prior to OUT I SC_FB Thermal Shutdown V > 1V OUT OUT 2. 2. registered trademark of Richtek Technology Corporation. RT9724 Min Typ Max Unit 2 1.3 1.7 2 μ μ μ 100 120 mΩ ...
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... RT9724 Parameter Output Turn-On Delay Time Output Turn-On Rise Time Output Turn-Off Delay Time Output Pull-Down Resistance During OFF Note 1. Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied ...
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... Temperature (°C) Quiescent Current vs. Temperature 5.5V, No Load -40 - Temperature (°C) Shutdown Current vs. Temperature 5.5V 0V, No Load IN EN 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 -40 - Temperature (°C) RT9724 60 80 100 60 80 100 60 80 100 www.richtek.com 5 ...
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... RT9724 Output Voltage vs. Output Current 0.2 0.4 0.6 0.8 1.0 Output Current (A) Current Limit vs. Input Voltage 2 1.9 1.8 1.7 1.6 1.5 2.7 3.1 3.4 3.7 4 Input Voltage (V) Current Limit vs. Temperature 2 1.9 1.8 1.7 1.6 1.5 -40 - Temperature (°C) © Copyright 2012 Richtek Technology Corporation. All rights reserved. www.richtek.com 5. 3. 1.2 1.4 1.6 1.8 2.0 2 4.3 4.6 4.9 5.2 5 ...
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... Turn On Rising Time vs. Temperature 5 4.6 4.2 3 10Ω LOAD 3 -40 - Temperature ( ° C) Turn Off Delay Time vs. Temperature 0.6 0.5 0 10Ω EN LOAD 0.2 -40 - Temperature (°C) Power On from EN OUT 5.5V 3Ω LOAD Time (2.5ms/Div) RT9724 60 80 100 60 80 100 www.richtek.com 7 ...
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... The RT9724 is a single N-MOSFET high-side power switches with enable input, optimized for self-powered and bus-powered Universal Serial Bus (USB) applications. The RT9724 is equipped with a charge pump circuitry to drive the internal N-MOSFET switch; the switch's low R 100mΩ, meets USB voltage drop requirements. ...
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... USB-required fault reporting. The faster trip time of the RT9724 power distribution allows designers to design hubs that can operate through faults. The RT9724 provides low on-resistance and internal fault- reporting circuitry to meet voltage regulation and fault notification requirements ...
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... OTP circuit starts the thermal shutdown function and turns the pass element off. The pass element turn on again after the junction temperature cools to 80°C. The RT9724 lowers its OTP trip level from 130°C to 100°C when output short circuit occurs (V 1V) as shown in Figure 1. ...
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... Layout Consideration For best performance of the RT9724.The following guidelines must be followed : Input and Output capacitors should be placed close to the IC and connected to ground plane to reduce noise coupling. The GND shoule be connected to a strong ground plane for heat sink. Keep the main current traces as possible as short and wide ...
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... RT9724 Outline Dimension Symbol © Copyright 2012 Richtek Technology Corporation. All rights reserved. www.richtek.com Dimensions In Millimeters Min Max 0.889 1.295 0.000 0.152 1.397 1.803 0.356 0.559 2.591 2.997 2.692 3.099 0.838 1.041 0.080 ...
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... W-Type 8L DFN 2x2 Package RT9724 2 1 DETAIL A Pin #1 ID and Tie Bar Mark Options Dimensions In Inches Min Max 0.028 0.031 0.000 0.002 0.007 0.010 0.008 0.012 ...