SP619 High Current Power Switch FEATURES Max Rds(on) .377 Ohms Overcurrent deactivation 800mA Max leakage current less than 2A 6 5 4 while deactivated Small 6 pin SOT-23 package Built-in Over-temperature Protection SP619 4.5V to 5.5V Input voltage range SOT23-6 APPLICATIONS Ultra low cost handsets 3 PDA, DSC, MP3 players 1 2 Cell phones Power Distribution Switch Battery-Charger Circuit DESCRIPTION The SP619 is a low R high current switch designed with precision current lim - DS(ON) iting to protect connected devices from damage due to a short circuit con dition or against current surges that may cause the supply voltages to fall out of regulation. This switch is functional over an input voltage range of 2.5V to 7V, but is targeted at 5V applications. The SP619 is also protected from thermal overload which limits power dissipation. In shutdown mode, the supply current drops to 2A. TYPICAL APPLICATION CIRCUIT SP619 Vin Vin Vout LOAD Cin .1F 100K Cout .1F EN ON/OFF 80K GND Aug24-17 Rev M SP619 High Current Power Switch 1ABSOLUTE MAXIMUM RATINGS Vin...-0.3V to 7V These are stress ratings only and functional op- Storage Temperature....... -65C to 150C eration of the device at these ratings or any other Junction Temperature......................150C Lead Temperature (Soldering, 10 sec).......300C above those indicated in the operation sections of ESD RATING the specifications below is not implied. Exposure to Human Body Model..2000V absolute maximum rating conditions for extended Machine Model....200V periods of time may affect reliability. OPERATING RATINGS Thermal resistance SOT23-6 Junction to Ambient...191C Junction to lead ...50C RECOMMENDED OPERATING CONDITIONS Unless otherwise specified: Vin = 4.5V - 5.5V, Cin = 0.1F, Ta = -10C to + 85C PARAMETER CONDITIONS MIN TYP (Note 1) MAX UNITS Operating Input Voltage 4.5 5.5 V Range Overcurrent Deactivation EN=1.5V 620 800 1010 mA Range Overcurrent Duration Be- EN=1.5V 1 5.25 ms fore Deactivation Shutdown Supply Current Vin=4.5V 2 A Quiescent Supply Current EN=1.5V Vin=4.5V 350 A Iout=0mA Quiescent Supply Current EN=1.5V Vin=4.5V 5.25 mA Iout=725mA Rds(on) Vin=4.5V Iout=100mA .377 EN=1.5V Post Fault Output Load for Enable=1.5V 10 15 23 K Recovery Post Fault Activation Turn Enable=1.5V 1 55 ms On Time Thermal Shutdown Die SP619 will self recover 120 150 180 C Temperature when temperature drops below the trip point . Thermal Restart Die Tem- 90 120 135 C perature ENABLE Logic LOW Driver is disabled .5 V ENABLE Pin Logic HIGH Driver is active .655 1.4 V Turn On Delay Rl=100k, Cl= 0.01F 600 s (Note 2,3) Turn Off Delay Rl=100k, Cl= 0.01F 200 s (Note 2,4) Rise Time Rl=100k, Cl= 0.01F 100 s (Note 2) Fall Time Rl=100k, Cl= 0.01F 2500 s (Note 2) Note 1: Typicals are j=25T C Note 2: Characterized, not 100% tested Note 3: Turn on delay is measured from the time the enable pin is turned on to the time it takes the output to rise to 10% of its final value. Note 4: Turn off delay is measured from the time the enable pin is turned to the time it takes for the output to fall to 90% of its current value. Aug24-17 Rev M SP619 High Current Power Switch 2