SIP4613BDVP-T1-E3

SiP4613A, SiP4613B Vishay Siliconix Protected 1-A High-Side Load Switch DESCRIPTION SiP4613A, SiP4613B is a protected highside power switch. It is designed to operate from voltages ranging from 2.4 V to 5.5 V and handle a continuous current of 1 A. The user settable current limit protects the input supply voltage from excessive load currents that might cause a system failure. SiP4613A, SiP4613B has a low shutdown supply current, which is reduced to less than 1 µA. A flag output CL is available to indicate fault conditions such as output short and thermal protection. In addition to current limit, the SiP4613A, SiP4613B is protected by undervoltage lockout and thermal shutdown. The SiP4613A, SiP4613B is available in a lead (Pb)-free 6-pin PowerPAK® TSC75-6 for operation over the industrial temperature range of - 40 °C to 85 °C. FEATURES • 1 A continuous output current • 2.4 V to 5.5 V supply voltage range • User settable current limit level • Low quiescent current • Undervoltage lockout • Thermal shutdown protection RoHS COMPLIANT • 4 kV ESD rating-HBM APPLICATIONS • Peripheral ports • Hot swap • Notebook computers • PDAs TYPICAL APPLICATION CIRCUIT 2.4 V to 5.5 V IN CIN CL Enable SET ON/ON GND RSET 1 µF RCL 5K CL OUT SiP4613A SiP4613B Load COUT 0.47 µF GND GND Document Number: 69998 S-82461-Rev. B, 06-Oct-08 www.vishay.com 1 SiP4613A, SiP4613B Vishay Siliconix ABSOLUTE MAXIMUM RATINGS all voltages referenced to GND = 0 V Parameter VIN, VON, VON IMAX Storage Temperature Operating Junction Temperature Power Dissipationa, PowerPAK TSC75-6 Thermal Impedance (ΘJA) , PowerPAK TSC75-6 b Limit - 0.3 to 6 2 - 65 to 150 - 40 to 150 420 131 Unit V A °C °C mW °C/W Notes: a. Derate 7.6 mW/°C above TA = 70 °C. b. Device mounted with all leads soldered or welded to PC board. Stresses beyond those listed under “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. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. RECOMMENDED OPERATING RANGE all voltages referenced to GND = 0 V Parameter IN Operating Temperature Range Limit 2.4 to 5.5 - 40 to 85 Unit V °C SPECIFICATIONSa Parameter Power Supplies Supply Voltage Quiescent Current Shutdown Current Switch Off Current Enable Inputs ON/ON High ON/ON Low ON/ON Leakage Current Turn Off Time Turn On Time Output On-Resistance Current Limit Minimum Current Limit Output Short Circuit Current Current Limit Response Time Undervoltage Lockout UVLO Threshold UVLO Hysteresis Thermal Shutdown Thermal Shutdown Threshold Hysteresis T THYST 20 165 °C VUVLO VHYST Rising Edge 1.8 0.05 2.4 V RDS IL IL(min) ISH tRESP RSET = 6.81 kΩ IN = 5 V 0.350 IN = 5 V, TA = 25 °C IN = 3 V, TA = 25 °C RSET = 6.81 kΩ 0.375 150 180 0.5 125 0.5 4 0.650 225 250 0.625 mΩ A mA A µs VIH VIL ILH tOFF tON IN = 2.4 V to 5.5 V ON/ON = 5 V IN = 5 V, RL = 10 Ω 0.5 55 1.5 0.5 1 5 120 V µA µs VIN IQ ISD IS(off) IN = 5 V, ON/ON = Active, lOUT = 0 A IN = 5 V, ON/ON = Inactive IN = 5 V, ON/ON = Inactive, VOUT = 0 V, TA = 25 °C 2.4 5.5 100 1 1 µA V Symbol Test Conditions Unless Specified IN = 5 V, TA = - 40 °C to 85 °C Limits Min.a Typ.b Max.a Unit Notes: a. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum (- 40 °C to 85 °C). b. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. c. Guaranteed by design. www.vishay.com 2 Document Number: 69998 S-82461-Rev. B, 06-Oct-08 SiP4613A, SiP4613B Vishay Siliconix PIN CONFIGURATION, ORDERING INFORMATION OUT IN IN OUT GND CL CL GND SET Top View ON/ON ON/ON Bottom View SET TSC75-6 PACKAGE ORDERING INFORMATION Part Number SiP4613ADVP-T1-E3 SiP4613BDVP-T1-E3 XX = Lot Code W = Work week Code Marking M3XXX M4XXX Temperature Range - 40 °C to 85 °C - 40 °C to 85 °C Package PowerPAK TSC75-6 PowerPAK TSC75-6 PIN DESCRIPTION Pin Number 1 2 3 4 5 6 Name OUT GND SET ON/ON CL IN Function Switch output Ground pin Current limit level set pin. The level is determinied by the value of a resistor connected from this pin to GND Shutdown pin. ON/ON, active low on the SiP4613A to turn on the switch, active high to turn off SiP4613A Active high on the SiP4613B to turn on the switch, active low to turn off SiP4613B CL pin will go low if SiP4613 is operating in current limited condition Input supply voltage and switch input FUNCTIONAL BLOCK DIAGRAM IN nW/L OUT CL Under Voltage Lockout W/L Thermal Shutdown SET ON/ON Reference Voltage GND Figure 1. SiP4613A/B Block Diagram Document Number: 69998 S-82461-Rev. B, 06-Oct-08 www.vishay.com 3 SiP4613A, SiP4613B Vishay Siliconix DETAILED DESCRIPTION The SiP4613A, SiP4613B limits load current by sampling the pass transistor current and passing that through an external resistor, RSET. The voltage across RSET, VSET, is then compared with an internal reference voltage, VREF. In the event that load current surpasses the set limit current, VSET will exceed VREF causing the pass transistor gate voltage to increase, thereby reducing the gate to source voltage of the PMOS switch and regulating its current back down to ILIMIT. It then follows that assuming an ambient temperature of 70 °C, the maximum power dissipation will be limited to about 419 mW. There is CL pin designed to indicate the current limit status of SiP4613. A typical 5 kΩ resistor is required to connect between CL pin and IN pin. In the event of the output over load, the current limit flag pin CL will go low to indicate the current limit status of the device. Figure 2 shows the voltage on CL pin go low after output short. Setting the Current Limit Level Setting the current limit level on the SiP4613A, SiP4613B requires some care to ensure the maximum current required by the load will not trigger the current limit circuitry. The minimum current limit threshold should be determined by taking the maximum current required by the load, ILOAD, and adding 25 % headroom. The SiP4613A, SiP4613B has a current limit tolerance of 25 %, which is largely a result of process variations from part to part, and also temperature and VIN/VOUT variances. Thus, to ensure that the actual current limit is never below the desired current limit a 1/0.80 = 1.25 coefficient needs to be added to the calculations. Knowing the maximum load current required, the value of RSET is calculated as follows. RSET = RSET coefficient/ILIMIT where ILIMIT = (ILOAD x 1.25) x 1.20 and RSET coefficient is 3460 for a 500 mA current limit. For typical RSET coefficient values given a limit current refer to the "Typical Characteristics" section. VOUT (500 mV/div) CL (500 mV/div) VOUT = 2.4 V RSET = 6.81 kΩ 50 µs/div Figure 2 Operation at Current Limit and Thermal Shutdown In the event that a load higher than ILIMIT is demanded of the SiP4613A, SiP4613B the load current will stay fixed at the current limit established by RSET. However, since the required current is not supplied, the voltage at OUT will drop. The increase in VIN - VOUT will cause the chip to dissipate more heat. The power dissipation for the SiP4613A, SiP4613B can be expressed as P = ILOAD x (VIN - VOUT) Once this exceeds the maximum power dissipation of the package, the die temperature will rise. When the die temperature exceeds an over-temperature limit of 165 °C, the SiP4613A, SiP4613B will shut down until it has cooled down to 145 °C, before starting up again. As can be seen in the figure below, the SiP4613A, SiP4613B will continue to cycle on and off until the load is reduced or the part is turned off (see figure 4 on next page). The maximum power dissipation in any application is dependant on the maximum junction temperature, TJ(MAX) = 125 °C, the junction-to-ambient thermal resistance for the TSC75-6 package, θJ-A = 131 °C/W, and the ambient temperature, TA, which may be formulaically expressed as: P (max) = www.vishay.com 4 The voltage signal in CL pin is not only used to indicate the output short circuit status. It is also used to indicate the thermal protection status of the device. Once the thermal protection is activated in the severe output short circuit condition, the voltage signal on the CL pin will run into the thermal protection cycling. Figure 3 shows the voltage waveform of CL pin after activation of the thermal protection circuit due to the severe short circuit status of the device’s output. VOUT = 5.5 V RSET = 6.81 kΩ VOUT (2 V/div) CL (2 V/div) 20 ms/div Figure 3 The thermal protection is the final protection to the device. The device will be completely shut down including the open drain current limit indicator pin CL until the device temperature drop below 145 °C. TJ (max) - TA θJ- A = 125 - TA 131 Document Number: 69998 S-82461-Rev. B, 06-Oct-08 SiP4613A, SiP4613B Vishay Siliconix Reverse Voltage The SiP4613A, SiP4613B is designed to control current flowing from IN to OUT. If the voltage on OUT is raised higher than IN current will flow from OUT to IN but the current limit function will not be available, as can be inferred from the block diagram in figure 1. Thus, in applications were OUT is used to charge IN, careful considerations must be taken to limit current through the device and protect it from becoming damaged. RSET = 3.32 kΩ VOUT = (1 V/div) IOUT (500 mA/div) 20 ms/div Figure 4. Current Over load Condition. Load Switch turned on with 0.1 Ω load at time = 0 ms. Document Number: 69998 S-82461-Rev. B, 06-Oct-08 www.vishay.com 5 SiP4613A, SiP4613B Vishay Siliconix TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted 70 60 Quiescent Current (µA) 50 40 30 20 10 0 - 40 10 60 Temperature (°C) 110 160 Quiescent Current (µA) 40 35 30 25 20 15 10 5 0 0 1 2 3 4 5 6 VIN - Input Voltage (V) Quiescent Current vs. Temperature 6 VOUT = 5.5 V 250 Quiescent Current vs. Input Voltage I OUT = 100 mA 220 5 VOUT = 3.9 V R DS(on) - (mΩ) 4 VOUT (V) 190 VIN = 3 V 160 VIN = 5 V 3 VOUT = 2.4 V 2 130 1 RSET = 6.81 kΩ 0 0 0 .1 0 .2 0 .3 0 .4 0 .5 0 .6 0 .7 100 70 - 40 - 20 0 20 40 60 80 100 120 IOUT (V) Temperature (°C) Output Voltage vs. Output Current 1 10.0 RDS(on) vs. Temperature 10-1 Off Supply Current (µA) Off Switch Current (µA) 1.0 10-2 0.1 10-3 0.01 10-5 10-6 - 40 - 20 0 20 40 60 80 100 120 0.001 - 40 - 20 0 20 40 60 80 100 120 Temperature (°C) Temperature (°C) Off Supply Current vs. Temperature Off Switch Current vs. Temperature www.vishay.com 6 Document Number: 69998 S-82461-Rev. B, 06-Oct-08 SiP4613A, SiP4613B Vishay Siliconix TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted 120 1 100 VIN = 3 V Turn-On Time (µS) Turn-On Time (µS) 80 VIN = 5 V 0.5 VIN = 3 V 60 VIN = 5 V 40 20 0 - 40 - 20 0 20 40 60 80 100 0 - 40 - 20 0 20 40 60 80 100 Temperature (°C) Temperature °C) Turn-On vs. Temperature RL = 10 Ω, CL = 0.47 µF 1.01 1.00 0.99 0.98 VIH and VIL (V) RSET (kΩ) 0.97 0.96 0.95 0.94 0.93 0.92 0.91 2.5 1 0.1 VIH VIL 100 Turn-Off vs. Temperature RL = 10 Ω, CL = 0.47 µF 10 3.0 3.5 4.0 4.5 5.0 5.5 6.0 1 ILIMIT (A) 10 VIN - Input Voltage (V) VIH and VIL vs. VIN 4 .0 3.9 3.8 RSET ILIMIT Product (kV) 2 3.7 Current Limit (%) 3.6 3.5 3.4 3.3 3.2 3.1 3 .0 0 0 .2 5 ILIMIT (A) 0 .5 0 .7 5 -3 -4 - 40 1 0 -1 -2 4 3 RSET vs. ILIMIT RSET = 8 kΩ VIN - VOUT = 0.5 V - 20 0 20 40 60 80 100 120 Temperature (°C) RSET Coefficient vs. ILIMIT Document Number: 69998 S-82461-Rev. B, 06-Oct-08 Current Limit vs. Temperature www.vishay.com 7 SiP4613A, SiP4613B Vishay Siliconix TYPICAL CHARACTERISTICS 25 °C, unless otherwise noted 250 IIN = 100 mA VOUT = 5 V 200 R DS(on) - (mΩ) R DS(on) - (mΩ) VOUT = 5 V 150 250 200 150 100 100 50 50 - 40 0 - 20 0 20 40 60 80 100 120 0 100 200 300 400 500 600 700 800 900 1000 lIN (mA) Temperature (°C) RDS(on)_reverse vs. Temperature RDS(VOUT-IN) vs. Current TYPICAL WAVEFORMS VOUT (1 V/div) IOUT = 500 mA VOUT (1 V/div) IOUT = 500 mA ON (1 V/div) ON (1 V/div) 20 µs/div 20 µs/div Turn On Turn Off VIN (1 V/div) VIN (1 V/div) IOUT = (1 A/div) IOUT = (2 A/div) VOUT (1 V/div) 10 µs/div 10 µs/div VOUT (1 V/div) Short Circuit through 0.3 Ω, Vin = 3.3 V Short Circuit through 0.3 Ω, Vin = 5 V Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and reliability data, see http://www.vishay.com/ppg?69998. www.vishay.com 8 Document Number: 69998 S-82461-Rev. B, 06-Oct-08 Package Information Vishay Siliconix PowerPAK ® TSC75-6L (Power IC only) D1 Exposed pad e D b Pin4 Pin 5 Pin6 K E PPAK TSC75 (1.6 x 1.6 mm) K L Pin3 K2 Top View Bottom View Pin 2 e1 Pin 1 Dot By Marking K2 Pin1 E1 Exposed pad A C A1 Side View MILLIMETERS DIM A A1 b C D D1 E E1 e e1 K K2 L 0.15 0.20 0.20 Min 0.50 0 0.20 0.10 1.55 0.95 1.55 0.55 Nom 0.55 0.25 0.15 1.60 1.00 1.60 0.60 0.50 BSC 1.00 BSC 0.25 0.30 0.006 0.008 0.008 Max 0.65 0.05 0.30 0.20 1.65 1.05 1.65 0.65 Min 0.020 0 0.008 0.006 0.0061 0.037 0.061 0.022 INCHES Nom 0.022 0.010 0.008 0.063 0.039 0.063 0.024 0.020 BSC 0.039 BSC 0.010 0.012 Max 0.026 0.002 0.012 0.010 0.065 0.041 0.065 0.026 ECN: S-61919-Rev. A, 02-Oct-06 DWG: 5955 Document Number: 74416 02-Oct-06 www.vishay.com 1 Legal Disclaimer Notice Vishay Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other disclosure relating to any product. Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or the continuing production of any product. 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