rt9703 ETC-unknow, rt9703 Datasheet
rt9703
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rt9703 Summary of contents
Page 1
... Smart Universal Power Switch with Flag General Description The RT9703 is a low voltage, high performance single N-Channel MOSFET power switch, designed for power rail on/off control with low R protection functions. The RT9703 equipped with a charge pump circuitry to drive the internal MOSFET switch and a ...
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... CE Chip Enable Control Input FLG Open-Drain Fault Flag Output IP Current Limit Programming Input Function Block Diagram VIN CE Bias Oscillator Preliminary FLG VIN IP 10uF RT9703 VOUT CE ON 33uF GND OFF UVLO Gate Charge Control Pump Output Voltage Thermal Protection 2 Pull-Up Resistor (10K to 100K) ...
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... Current Limit Factor vs. R SET SUPPLY A VIN RT9703 OFF VIN FLG VOUT RT9703 CE GND OUT OUT OUT IP R SET ” are as follows: , Short Circuit Current vs. Input Voltage, SET RT9703 FLG I LEAKAGE ...
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... RT9703 Absolute Maximum Ratings Supply Voltage --------------------------------------------------------------------------------------------------------- 6.5V Chip Enable Input Voltage ------------------------------------------------------------------------------------------ 0.3V to 6.5V Flag Voltage ------------------------------------------------------------------------------------------------------------ 6.5V Power Dissipation 25° SOP-8 -------------------------------------------------------------------------------------------------------------------- 0.95W Package Thermal Resistance SOP-8, -------------------------------------------------------------------------------------------------------------- 104° C/W JA Junction Temperature ------------------------------------------------------------------------------------------------ 125°C Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------- 260°C Storage Temperature Range --------------------------------------------------------------------------------------- 65°C to 150°C ...
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... LIMIT SET SET Maximum Current Limit vs. Supply Voltage “ “ Typical Operating Characteristics 5 Min Typ -- 130 -- 10 ” may cause permanent damage to the device. ” graph for further details. ” graph for further details. RT9703 Max Units -- graph ” ...
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... RT9703 Typical Operating Characteristics 2 On-State Supply Current vs. Input Voltage 10uF Open 100k SET 1.5 2 2.5 3 Input Voltage (V) On-State Supply Current vs. Temperature 10uF 33uF OUT Open 100k SET ...
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... 10uF 33uF IN OUT 350 400 450 500 3 = 0.5A 50k OUT SET = 10uF 33uF IN OUT 4 4 0.1uF 7 RT9703 Current Limit Factor 10uF 33uF IN OUT - ON OFF -10 50 100 150 200 ...
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... RT9703 4 CE Threshold Voltage vs. Input Voltage 2 10uF 33uF IN OUT I = 100mA 100k L SET 2 1.6 1.2 0.8 0 2.5 3 3.5 Input Voltage (V) Turn-On Rising Time vs. Temperature 3 10uF 1uF IN OUT 200k L SET 2.5 2 1.5 1 0.5 0 -40 - Temperature Turn-Off Leakage Current vs. Temperature 2 0 5V, V ...
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... R L Time (1ms/Div) Preliminary 4 3.5 2.5 1.5 0 100 120 ( C) ° 10uF 1uF OUT = 200k SET 1uF OUT = 200k SET 9 RT9703 UVLO Threshold vs. Temperature C = 10uF 33uF IN OUT 100k 3 L SET -40 - Temperature ° Turn-Off Response OUT V ...
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... RT9703 FLAG Response (Enable into Current Limit FLG I L (1A/Div) Time (1ms/Div) 5 Current Limit with Thermal Shutdown 10uF 33uF OUT (1A/Div) Time (50ms/Div) 5 Soft-Start Response OUT I L Time (2ms/Div) Preliminary 1uF, C ...
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... MOSFET are turned off, reducing the supply current to 0.1 A typically. The maximum guaranteed voltage for a logic low at the CE pin is 0.8V. A minimum guaranteed voltage the CE pin will turn the RT9703 back on. Floating the input may cause unpredictable operation. CE should not be allowed to go negative with respect to GND. ...
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... Power Dissipation The device's junction temperature depends on several factors such as the load, PCB layout, ambient temperature and package type. The output pin of RT9703 can deliver a current over the full operating junction temperature range. However, the maximum output current must be derated at higher ambient temperature to ensure ...
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... Place a ground plane under all circuitry to lower both resistance and inductance and improve DC and transient performance (Use a separate ground and power plans if possible). Locate the bypass capacitors as close as possible to the input and output pin of the RT9703. Preliminary ,3 )/* 9287 13 ...
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... RT9703 Outline Dimension Symbol RICHTEK TECHNOLOGY CORP. Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 Preliminary Dimensions In Millimeters Min Max 4.801 5.004 3.810 3.988 1.346 1.753 0.330 0.508 1.194 1.346 ...