FPF2193 ONSEMI | Alldatasheet
Document overview
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Technical content
Features
<1.8 to 5.5 V Input Voltage Range Controlled Turn-On 0.1 to 1.5 A Adjustable Current Limit Under-Voltage Lockout Thermal Shutdow n <2 µA Shutdow n Current Auto Restart Fast Current Limit Response Time 5 µs to Moderate Over Currents 30 ns to Hard Shorts Fault Blanking Reverse Current Blocking
Applications
PDAs Cell Phones Handheld GPS Devices Portable Enterprise / Industrial Devices Digital Cameras Peripheral Ports and Accessories Portable Medical Equipment Hot Sw ap Supplies
Description
The FPF2193, FPF2194, and FPF2195 form a series of load sw itches that provides full protection to systems and loads that may encounter large current conditions. These devices contain a 55 mΩ current-limited P - channel MOSFET that can operate over an input voltage range of 1.8 to 5.5 V. Internally, current is prevented from flow ing w hen the MOSFET is off and the output voltage is higher than the input voltage. Sw itch control is by a logic input (ON) capable of interfacing directly w ith low -voltage control signals. Each part contains thermal shutdow n protection that shuts off the sw itch to prevent damage to the part w hen a continuous over-current condition causes excessive heating. When the sw itch current reaches the current limit, th e parts operate in a constant -current mode to prohibit excessive currents from causing damage. For the FPF2193 and FPF2194, if the constant current condition still persists after 30 ms, the parts shut off the sw itch and pull the fault signal pin (FLAGB) LOW. The FPF2193 has an auto -restart feature that turns the sw itch on again after 450 ms if the ON pin is still active. The FPF2194 does not have this auto -restart feature , so the sw itch remain s off until the ON pin is cycled. The FPF2195 does not turn off after a current limit fault, but remains in the constant-current mode indefinitely. The minimum current limit can be set as low as 45 mA. These parts are available in a space -saving six ball advanced 0.98 x 1.48 mm WLCSP package.
Ordering Information
Limit [mA] Current Limit Blanking Time [ms] Auto-Restart Time [ms] ON Pin Activity Top Mark FPF2193 100-1500 15/30/60 225/450/900 Active HIGH FPF2194 15/30/60 NA S7 FPF2195 0 NA S9 FPF2195BUCX 45-1500 0 NA SY
www.onsemi.com FPF2193 / FPF2194 / FPF2195 — Full Function Load Switch with Adjustable Current Limit Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol Parameter Min. Max. Unit VIN, VOUT, ON, FLAGB, ISET to GND -0.3 6.0 V PD Pow er Dissipation at TA = 25°C(1) 1.2 W TJ Operating Temperature Range -40 +125 °C TSTG Storage Temperature -65 +150 °C JA Thermal Resistance, Junction to Ambient 85 °C/W ESD Electrostatic Discharge Capability Human Body Model, JESD22-A114 8000 V Machine Model, JESD22-A115 400 Note: 1. Package pow er dissipation on one-square inch pad, tw o-ounce copper board. Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. ON Semiconductor does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol Parameter Min. Max. Unit VIN Input Voltage 1.8 5.5 V TA Ambient Operating Temperature -40 +85 °C
www.onsemi.com FPF2193 / FPF2194 / FPF2195 — Full Function Load Switch with Adjustable Current Limit
Electrical Characteristics
Symbol Parameter Conditions Min. Typ. Max. Units Basic Operation VIN Operating Voltage 1.8 5.5 V IQ Quiescent Current IOUT=0 mA, VON=VIN VIN=1.8 V 70 µA VIN=3.3 V 75 VIN=5.5 V 80 RON On Resistance TA=25°C, IOUT=200 mA 55 80 m TA=-40 to 85°C, I OUT=200 mA 135 VIH On Input Logic High Voltage ON VIN=1.8 V 0.8 V VIN=5.5 V 1.4 VIL On Input Logic Low Voltage VIN=1.8 V 0.5 V VIN=5.5 V 1.0 IIN On Input Leakage VON=VIN or GND -1 0 1 µA VIN_SD VIN Shutdow n Current VON=0 V, VIN=5.5 V, VOUT=Short to GND -2 2 µA VFLB_L FLAGB Output Logic L ow Voltage IFLB_H FLAGB Output Logic High Leakage Current VIN=5 V, Sw itch ON 1 µA Reverse Block ISDT VOUT Shutdow n Current VON=0 V, VOUT=5.5 V, VIN=Short-to-GND -2 2 µA Vbreakdown Reverse Breakdow n Voltage VIN=VON=0 V, IOUT=200 µA 9 V Protections ILIM Current Limit VIN=3.3 V, VOUT=3.0 V, RSET=690 600 800 1000 mA Current Limit for FPF2195BUCX VIN=4.5 V, VOUT=4.2 V, RSET=15.8 K 35 45 60 mA ILIM(MIN) Minimum Current Limit VIN=3.3 V, VOUT=3.0 V, RSET=5516 100 ma TSD Thermal Shutdow n Shutdow n Threshold 140 °C Return from Shutdow n 130 Hysteresis 10 VUVLO Under-Voltage Lockout VIN Increasing 1.55 1.65 1.75 V VUVLO_HYST Under-Voltage Lockout Hysteresis 50 mV Dynamic tdON Delay On Time RL=500 , CL=0.1 µF 20 µs tR VOUT Rise Time RL=500 , CL=0.1 µF 20 µs tON Turn-On Time RL=500 , CL=0.1 µF 40 µs tdOFF Delay Off Time RL=500 , CL=0.1 µF 15 µs tF VOUT Fall Time RL=500 , CL=0.1 µF 110 µs tOFF Turn-Off Time RL=500 , CL=0.1 µF 125 µs tBLANK Over-Current Blanking Time FPF2193, FPF2194 15 30 60 ms tRSTRT Auto-Restart FPF2193 Only 225 450 900 ms tSC Short-Circuit Response Time VIN=VOUT=3.3 V, Moderate Over - Current Condition 5 µs VIN=VOUT=3.3 V, Hard Short 30 ns
limiting, under -voltage lockout , and thermal shutdow n. current draw from the supply. the thermal shutdow n turns off the sw itch. voltage drops below the under -voltage lockout threshold. on of the sw itch, w hich limits current over shoot. input voltage become s greater than output voltage. Figure 27. Timing Diagram
www.onsemi.com FPF2193 / FPF2194 / FPF2195 — Full Function Load Switch with Adjustable Current Limit
Application Information
Figure 28. Typical Application RSET is in and ISET is in Amps. Table 1. Current Limit Various R SET Values further reduce the voltage drop. dissipation occurs w hen the output is shorted to ground.
www.onsemi.com FPF2193 / FPF2194 / FPF2195 — Full Function Load Switch with Adjustable Current Limit This is more pow er than the package can dissipate, but the thermal shutdow n of the part activate s to protect the part from damage due to excessive heating. When using the FPF2194, attention must be given to the manual resetting of the part. The junction temperature is only able to increase to the thermal shutdow n threshold. Once this temperature has b een reached, toggling ON does not turn the sw itch on until the junction temperature drops. For the FPF2195, a short on the output cause s the part to operate in a constant -current state, dissipating a w orst-case pow er of: W25.85.15.5 (max)I(max)V(max)P LIMIN (5) This large amount of pow er activate s the thermal shutdow n and the part cycle s in and out of thermal shutdow n as long as the ON pin is active and the short is present. Board Layout For best performance, all traces should be as short as possible. To be most effective, the input and output capacitors should be placed close to the device to minimize the effects that parasitic trace inductances may have on normal and short -circuit operation. Using w ide traces for V IN, V OUT, and GND help to minimize parasitic electrical effects along w ith minimizing the case-to-ambient thermal impedance.
Figure 29. 6-Ball, Wafer-Leve l Chip-Scale Package ( WLCSP)
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A. NO JEDEC REGISTRATION APPLIES. B. DIMENSIONS ARE IN MILLIMETERS. ±43 MICRONS (539-625 MICRONS). G. DRAWING FILNAME: MKT-UC006AFrev2.
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