RT9722 RICHTEK [Richtek Technology Corporation], RT9722 Datasheet
RT9722
Related parts for RT9722
RT9722 Summary of contents
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... FLAG output with delay is available to indicate fault conditions to the local controller. The RT9722 is an ideal solution for high side power load switch and can support flexible applications since it is available in various package such as WDFN-6L 2x2, SOT-23-5 and SOT-23-6 ...
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... SET Voltage C IN RT9722 1µF 4 Enable EN/EN VOUT GND 2 Figure 1. Typical Application Circuit for SOT-23-5 Package www.richtek.com 2 RT9722BGB RT9722BGE RT9722BGQW 3 Supply R Voltage SET 1 Peripheral Enable 0.47µF Figure 2. Typical Application Circuit for SOT-23-6 and 1S= : Product Code 1S=DNN DNN : Date Code DT= : Product Code DT=DNN ...
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... Ground. The exposed pad must be soldered to a large PCB and connected to GND for maximum power dissipation. Current Limit Set Input. A resistor from SET to GND sets 1 SET the current limit of the switch. Chip Enable (Active High for RT9722A / Active Low for EN/EN 6 RT9722B). 4 Fault Flag Open-Drain Output. ...
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... RT9722 Absolute Maximum Ratings Supply Input Voltage, V ------------------------------------------------------------------------------------------------ Voltage ------------------------------------------------------------------------------------------------------------------ FLAG, SET Voltage ------------------------------------------------------------------------------------------------------- 6V Power Dissipation 25° SOT-23-5/SOT-23-6 ------------------------------------------------------------------------------------------------------- 0.4W WDFN-6L 2x2 -------------------------------------------------------------------------------------------------------------- 0.606W Package Thermal Resistance (Note 2) SOT-23-5/SOT-23-6 ------------------------------------------------------------------------------------------------------- 250°C/W WDFN-6L 2x2, θ --------------------------------------------------------------------------------------------------------- 165°C/W JA Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260°C Junction Temperature ----------------------------------------------------------------------------------------------------- 150° ...
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... FLG_Off FLG From Fault Condition to FLG t D Assertion V V Increasing UVLO IN ΔV V Increasing UVLO Δ 25° low effective thermal conductivity single layer test board of A RT9722 Min Typ Max Unit Ω μ °C ...
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... RT9722 Typical Operating Characteristics Supply Current vs. Input Voltage 2.5 3 3.5 Input Voltage (V) Shutdown Current vs. Temperature 5V 0V 0.8 0.6 0.4 0.2 0 -50 - Temperature (°C) R vs. Input Voltage DS(ON) 250 200 150 100 50 0 2.5 3 3.5 Input Voltage (V) www.richtek.com Open Open ...
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... 6.8kΩ 0Ω SET LOAD 0 2.5 3 3.5 4 Input Voltage (V) Turn-Off Time vs. Temperature 6.8kΩ 10Ω, C SET LOAD 0 -50 - Temperature (°C) RT9722 = 510Ω LOAD 4.5 5 5.5 = 0.47μF OUT 4.5 5 5.5 = 0.47μF OUT 75 100 125 www.richtek.com 7 ...
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... RT9722 Power On from (5V/Div) V OUT (2V/Div) I OUT (200mA/Div 5V 6.8kΩ SET Time (25μs/Div) Current Limit with Thermal Shutdown V IN (5V/Div) V OUT (5V/Div) Flag (5V/Div) I OUT (500mA/Div 5V 16kΩ SET Time (250ms/Div) www.richtek.com 8 (5V/Div) (2V/Div) I OUT (200mA/Div) = 10Ω ...
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... OUT to OUT Fault Flag The RT9722 provides a FLG signal pin which N-Channel open drain MOSFET output. This open drain is greater than the voltage output goes low when current limit V die temperature exceeds 150°C approximately. The FLG Table 1 ...
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... D(MAX) Where T temperature, T the junction to ambient thermal resistance. For recommended operating conditions specification of RT9722, the maximum operating junction temperature is 125°C. The junction to ambient thermal resistance θ to GND (the IN SOT-23-5/SOT-23-6 package is 250°C/W and WDFN-6L 2x2 package is 165°C/W on the standard JEDEC 51-3 single-layer thermal test board ...
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... Ambient Temperature (°C) Figure 4. RT9722 Maximum Power Dissipation Derating Curve DS9722-00 August 2011 Layout Consideration For the best performance of the RT9722, careful PCB layout is necessary. The following guidelines must be considered: and thermal J(MAX) Keep all input and output traces as short and wide as possible ...
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... RT9722 Outline Dimension Symbol 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 0.254 0.300 0.610 SOT-23-5 Surface Mount Package H L Dimensions In Inches ...
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... SOT-23-6 Surface Mount Package RT9722 H L Dimensions In Inches Min Max 0.031 0.051 0.000 0.006 0.055 0.071 0.010 0.022 0.102 0.118 0.106 0.122 0.033 ...
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... RT9722 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 ...