LPW5202_V01 POWER | Alldatasheet
Document overview
- Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
- PDF pages: 14
Technical content
Features
⚫ 2.4V to 6V input voltage range ⚫ Low on-state resistance to 70mΩ ⚫ 30μA low current consumption ⚫ Ultra-low shutdown current (<100nA) ⚫ Fixed or adjustable current limit - Fixed: 0.65A, 1.35A, 1.6A, 2.3A - Adjustable: 200mA to 2.5A ⚫ Under-voltage lockout ⚫ Blocking reverse current ⚫ Thermal shutdown protection ⚫ Fast current limit response ⚫ ESD Protection: - Human Body Model: 4kV - Charged Device Model: 0.5kV ⚫ SOT23-5 Package ⚫ UL Approved File No. E526435
Applications
⚫ Notebook and PC ⚫ Cell phone and PDAs ⚫ USB or other peripheral ports ⚫ Camera General Description The LPW5202 is a series of load switches which provide full protection to systems and loads which may encounter large current conditions. The device contains a 70mΩ current-limited P -channel MOSFET which can operate ov er an input voltage range from 2.4V to 6 V. The current limit is fixed or could be settable using an external resistor. When the current reaches the threshold , the device will limit the current to constant value to prohibit excessive currents from causing damage. Internally, current is prevented from flowing when the MOSFET is off and the output voltage is higher than the input voltage. Switch is controlled by a n active-high logic pin. Thermal shutdown protection is integrated which shuts off the switch to prevent damage to the part when a continuous over -current condition causes excessive heating. The device part LPW5202SDB5F11, LPW5202FDB5F11, LPW5202FB5F21 and LPW5202FDB5F21 have certified by UL/CUL62368-1 2nd. These parts are available in a space -saving 5 pin SOT23 package. Ordering and Package Information Device Marking Current Limiting (typ) Output Discharge Flag indicator Package Shipping LPW5202AB5F Adjustable No No SOT23-5 3K/REEL LPW5202ADB5F LPS D0YWX Adjustable Yes No SOT23-5 3K/REEL LPW5202FB5F21 LPS 1WYWX 2.3A No Yes SOT23-5 3K/REEL LPW5202FDB5F21 LPS D3YWX 2.3A Yes Yes SOT23-5 3K/REEL LPW5202FB5F15 1.6A No Yes SOT23-5 3K/REEL LPW5202FDB5F15 1.6A Yes Yes SOT23-5 3K/REEL LPW5202FB5F11 1.35A No Yes SOT23-5 3K/REEL LPW5202FDB5F11 LPS D2YWX 1.35A Yes Yes SOT23-5 3K/REEL LPW5202FB5F06 0.7A No Yes SOT23-5 3K/REEL LPW5202FDB5F06 LPS D1YWX 0.7A Yes Yes SOT23-5 3K/REEL LPW5202SB5F21 2.3A No No SOT23-5 3K/REEL SOT23-5
www.lowpowersemi.com Email: marketing@lowpowersemi.com Page 2 of 14 LPW5202 LPW5202 Rev1.7 June-2022 High-Side Load Switch with Over -Current Protection LPW5202SDB5F21 2.3A Yes No SOT23-5 3K/REEL LPW5202SB5F15 1.6A No No SOT23-5 3K/REEL LPW5202SDB5F15 1.6A Yes No SOT23-5 3K/REEL LPW5202SB5F11 1.35A No No SOT23-5 3K/REEL LPW5202SDB5F11 LPS D5YWX 1.35A Yes No SOT23-5 3K/REEL LPW5202SB5F06 0.7A No No SOT23-5 3K/REEL LPW5202SDB5F06 0.7A Yes No SOT23-5 3K/REEL Marking indication: Y: Production Year, W: Production Week, X: Series Number
Figure 1. Typical Application Circuitry
www.lowpowersemi.com Email: marketing@lowpowersemi.com Page 5 of 14 LPW5202 LPW5202 Rev1.7 June-2022 Absolute Maximum Ratings (Note 1) Note 1: Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, instead of functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Thermal Information Note 2: It is based on 2S2P JEDEC standard PCB. ESD Ratings Recommended Operating Conditions
Electrical Characteristics
The following parameters are guaranteed under condition V IN =5V, TA = -40°C to 85° C unless otherwise noted, TA = 25° C for typical value. Parameters Symbol Test conditions Min Typ Max Unit On-resistance RDS(ON) VIN = 5V, IOUT=200mA, TA=25°C 70 100 mΩ Input quiescent current IQ VIN = 5V, OUT floating, VEN = 5V 30 50 μA Input shutdown current ISD VIN = 5V, OUT grounded, VEN = 0V 200 nA Under voltage lockout level VUVLO_F IN voltage falling 2.25 2.5 2.75 V VUVLO_R IN voltage rising 2.4 2.65 2.9 V
www.lowpowersemi.com Email: marketing@lowpowersemi.com Page 6 of 14 LPW5202 LPW5202 Rev1.7 June-2022 Parameters Symbol Test conditions Min Typ Max Unit Current limit level LPW5202Axxx ILIM Refer to Figure 14 and Equation (1) A LPW5202xxx21 VIN = 5V, VOUT = 4.5V, TA=25° C 2.10 2.30 2.50 LPW5202xxx15 VIN = 5V, VOUT = 4.5V, TA=25° C 1.4 1.6 1.8 LPW5202xxx11 VIN = 5V, VOUT = 4.5V, TA=25° C 1.20 1.35 1.50 LPW5202xxx06 VIN = 5V, VOUT = 4.5V, TA=25° C 0.55 0.65 0.75 Current limit level accuracy (3) (4) (LPW5202Axxx) ACCLIM VIN = 5V, 500mA < ILIM < 2.5A 10 VIN = 5V, 200mA < ILIM < 500mA 15 Short circuit protection level (4) ISHORT VIN = 5V, TA=25° C 4.5 6.5 A Output auto discharge RDIS VIN = 5V, VEN = 0V 90 110 130 Ω Reverse voltage protection (3) VRVP VIN = 5V, VOUT - VIN level to trigger off 115 150 mV Enable logic high voltage level VIH VIN = 2.4V to 6V 1.4 V Enable logic high voltage level VIL VIN = 2.4V to 6V 0.4 V Leakage current on EN pin ILKG_EN VEN = VIN = 5V 3.5 μA Output logic low voltage level VOL VIN = 2.4V to 6V, IFLAGB = 10mA 0.1 V Leakage on FLAGB pin ILKG_FLAGB VIN = 5V, VFLAGB = 5V 0.1 μA FLAGB de-bounce time tDEB_FLAGB VIN = 5V, RFLAG_PU = 10kΩ, TA = 25° C, time from IOUT hits IOCP to VFLAGB = 0.1V 10 ms OCP response time (3) tOCP VIN = 5V, TA = 25° C, time from IOUT hits IOCP to IOUT stop rising 3 7 15 μs Short circuit protection time (3) tSHORT VIN = 5V, TA = 25° C, time from IOUT hits ISHORT to switch turned off 300 ns Load switch turned on delay (3) tDON VIN = 5V, ROUT = 10Ω, COUT = 1μF, time from enabled to VOUT = 0.5 500 μs Output rising time (3) tR VIN = 5V, ROUT = 10Ω, COUT = 1μF, time from VOUT = 0.1×VIN to 0.9×VIN 600 μs Load switch turned off delay (3) tOFF VIN = 5V, ROUT = 10Ω, COUT = 1μF, time from disabled to VOUT = 0.9×VIN 1.2 μs Output discharge time (3) tDIS VIN = 5V, ROUT = 10Ω, COUT = 1μF, time from VOUT = 0.9×VIN to 0.1×VIN 25 μs Thermal shutdown trigger TSD Temperature rising 150 °C Thermal shutdown release TSD_REL Temperature falling 130 °C Note 3. The parameter does not include the variation from external resistor on ISET. Note 4. The parameter is guaranteed by design and characterization.
www.lowpowersemi.com Email: marketing@lowpowersemi.com Page 9 of 14 LPW5202 LPW5202 Rev1.7 June-2022 Function Description LPW5202 series are current limited switches that protect systems and loads which can be damaged or disrupted by the application of high currents. The devices all contain a 70mΩ P -channel MOSFET and a controller capable of working over a wide input operating range of 2.4V to 6V. The controller protects against system malfunctions through current limiting, under-voltage lockout and thermal shutdown. The current limit is adjustable from 200mA to 2.5A through an external resistor, or fixed value typical applications. Enable control The EN pin controls the state of the switch. When EN is pulled high, the load switch is turned on. Activating E N continuously holds the switch in the on state so long as there is no fault. For all versions, an under -voltage on IN or a junction temperature in excess of 150° C overrides the EN control to turn off the switch. The LPW5202 does not turn off in response to an over current condition but instead remains operating in a co nstant current mode as long as EN is active and the thermal shutdown or under -voltage lockout have not activated. The enable pin EN’s control voltage and IN pin have independent recommended operating ranges. The EN pin voltage can be driven by a voltage level hi gher than the input voltage. Reverse Voltage Protection The LPW5202 has a reverse voltage protection feature that protects the input when output voltage is higher than the input. For a standard USB power design, this is an important feature to protect the USB host from being damaged due to the current flow from VBUS. When the load switch is OFF, no current flows from the output to the input. If the switch is turned on and VOUT - VIN is higher than VRVP, this feature is activated and turns off the switch. This prevents any current flow from output to input. The reverse voltage protection feature will be deactivated if the V OUT is smaller than VIN. FLAGB operation is independent of the reverse voltage protection and does not report a fault condit ion if this feature is activated Current Limit The current limit ensures that the current through the switch doesn't exceed a maximum value while not limiting at less than a minimum value. The current at which the parts will limit is fixed (LPW5202F/S) or adjustable through the selection of an external resistor connected to ISET (LPW5202A). The LPW5202F have a de-bounce time of 10ms, nominally, for indicator pin. At the end of th is time, the FLAGB will be internally pulled down. As long as the heavy load condition continued, the LPW5202 will remain in a constant current state until the E N pin is deactivated or the thermal shutdown turns-off the switch. Under-Voltage Lockout The under-voltage lockout turns -off the switch if the input voltage drops below the under -voltage lockout threshold. With the EN pin active, the input voltage rising above the under-voltage lockout threshold will cause a controlled turn-on of the switch which limits current over-shoots. Thermal Shutdown The thermal shutdown protects the die from internally or externally generated excessive temperatures. During an over temperature condition , the switch is turned off. The switch automatically turns on again if the temperature of the die drops below the threshold temperature.
www.lowpowersemi.com Email: marketing@lowpowersemi.com Page 10 of 14 LPW5202 LPW5202 Rev1.7 June-2022
Application Information
The LPW5202A current limit is set with an external resistor connected between ISET pin and GND. This resistor is selected using the following equation: 𝑅SET = 7900 ILIM (1) Where, RSET, united as kΩ, is the resistor connected to ISET. ILIM is the expected current limit value in mA. Resistor tolerance of 1% or less is recommended. The relationship between RSET and ILIM could also be found as below diagram: Figure 14. Current limit level and OCP trigger level
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Package Information
A H C e b D B L 0.6 2.60 1.00 0.95 Recommended Land Pattern SYMBOL MILLIMETER MIN NOM MAX A 0.889 1.100 1.295 A1 0.000 0.050 0.152 B 1.397 1.600 1.803 b 0.28 0.35 0.559 C 2.591 2.800 3.000 D 2.692 2.920 3.120 e 0.95BSC H 0.080 0.152 0.254 L 0.300 0.450 0.610
Classification temp in Table 1. Classification temp in Table 2.
- Tolerance for peak profile temperature (TP) is defined as a supplier minimum and a user maximum.
Table 1. Sn-Pb Eutectic Process - Classification Temperatures (TC) Table 2. Pb-Free Process - Classification Temperatures (TC)
Figure 15. Classification Profile (Not to scale)
www.lowpowersemi.com Email: marketing@lowpowersemi.com Page 14 of 14 LPW5202 LPW5202 Rev1.7 June-2022 Tape and Reel Information REEL DIMENSIONS TAPE DIMENSIONS A B C d E F P0 P P1 W PIN1 AND TAPE FEEDING DIRECTION