rt9711pb Richtek Technology Corporation, rt9711pb Datasheet
rt9711pb
Available stocks
Related parts for rt9711pb
rt9711pb Summary of contents
Page 1
High-Side Power Switches with Flag General Description The RT9711 is a low voltage, single N-Channel MOSFET high-side power switch, optimized for self-powered and bus- powered Universal Serial Bus (USB) applications. The RT9711 ...
Page 2
RT9711 Typical Application Circuit Pull-Up Resistor (10K to 100K) Supply Voltage 5V VIN FLG 1uF RT9711 VOUT OFF EN ON GND 10uF Ferrite Beads Note: A low-ESR 150μF aluminum electrolytic or tantalum between V and GND is strongly recommended to ...
Page 3
Absolute Maximum Ratings Supply Voltage --------------------------------------------------------------------------------------------------------- 6.5V Chip Enable Input Voltage ------------------------------------------------------------------------------------------- Flag Voltage ------------------------------------------------------------------------------------------------------------ 6.5V Power Dissipation 25° SOT-23-5 ---------------------------------------------------------------------------------------------------------------- SOP-8 -------------------------------------------------------------------------------------------------------------------- 0.625W Package Thermal Resistance (Note 5) SOT-23-5, θ ---------------------------------------------------------------------------------------------------------- 250°C/W JA ...
Page 4
RT9711 Parameter FLAG Delay Time (Note 4) Under-Voltage Lockout Under-Voltage Hysteresis Thermal Shutdown Protection Thermal Shutdown Hysteresis Note 1. Stresses listed as the above "Absolute Maximum Ratings" may cause permanent damage to the device. These are for stress ratings. Functional ...
Page 5
Typical Operating Characteristics Switch On Resistance vs. Temperature 0.25 SOP- 5V 1.5A IN LOAD μ F/X7R OUT 0.2 0.15 0.1 0.05 0 -40 - Temperature (°C) Switch ...
Page 6
RT9711 Current Limit vs. Temperature 2.2Ω μ F/X7R OUT 3 2.75 SOP-8 2.5 SOT-23-5 2.25 2 1.75 1.5 -40 -20 0 ...
Page 7
Swith Off Supply Current vs. Temperature 1 SOT-23- μ 0 F/Electrolytic IN OUT R = Open L 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1 -40 -20 ...
Page 8
RT9711 Turn On Response SOT-23- OUT V EN (5V/Div) V OUT (5V/Div) Time (100μs/Div) UVLO at Rising SOT-23- 5V μ F/Electrolytic 30Ω ...
Page 9
Flag Response with Ramped Load SOT-23- 5V μ F/Electrolytic IN OUT V EN (5V/Div) V LAG (5V/Div) V OUT (5V/Div) I OUT (1A/Div) Time (2.5ms/Div) DS9711-04 March 2007 Preliminary = 0V ...
Page 10
RT9711 Applications Information The RT9711 is a single N-Channel MOSFET high-side power switch with active-low enable input, optimized for self-powered and bus-powered Universal Serial Bus (USB) applications. The RT9711 equipped with a charge pump circuitry to drive the internal NMOS ...
Page 11
Once this current limit threshold is exceeded the device enters constant current mode until the thermal shutdown occurs or the fault is removed. Thermal Shutdown Thermal shutdown is employed to protect the device from damage if the die temperature exceeds ...
Page 12
RT9711 A Bus-Powered Hub draws all of the power to any internal functions and downstream ports from the USB connector power pins. The hub may draw up to 500mA from the upstream device. External ports in a Bus-Powered Hub can ...
Page 13
The USB specification defines the maximum resistance per contact ( the USB connector to be 30mΩ CONN and the drop across the PCB and switch to be 100mV. This basically leaves two variables in the equation : the ...
Page 14
RT9711 Outline Dimension Symbol www.richtek.com 14 Preliminary 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 ...
Page 15
... SOP Plastic Package Richtek Technology Corporation Taipei Office (Marketing) 8F, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)89191466 Fax: (8862)89191465 Email: marketing@richtek.com RT9711 H M Dimensions In Inches Min Max 0 ...