Cool-Switch PI2161 60 Volt, 12 Amp Full-Function Load Disconnect Switch Solution Product Description Features Integrated High Performance 12 A, 8.5 m MOSFET The Cool-Switch PI2161 is a complete full-function Load Disconnect Switch solution for medium voltage applications Very small, high density fully-optimized solution with with a high-speed electronic circuit breaker and a very low simple PCB layout on-state resistance MOSFET. It is designed to protect an input Programmable latching over-current detection power bus from output load fault conditions. The PI2161 Fast 120ns disconnect response to load failures Cool-Switch solution is oered in an extremely small, Low loss current sensing thermally enhanced 7mm x 8mm LGA package. The PI2161 enables an extremely low power loss solution with fast Fast disable via EN pin, typically 200 ns. dynamic response to an over current fault or high conditions. Load Status output (VO scaled load voltage) The PI2161 senses a small portion of the total MOSFET current and has a low voltage threshold allowing the use of low power sense resistors. Applications The switch is closed when the EN input is low and is open when EN is high. Once enabled, the PI2161 monitors the N+1 Redundant Power Systems MOSFET current through a sense resistor. If an over current Servers & High End Computing level is sensed, the switch is quickly latched o to prevent the Load Disconnect power source from being overloaded. Bringing the EN pin High Side Circuit Breaker high will reset the over current latch allowing retry. The PI2161 has an internal 10 k bias resistor connected between the Drain (D) and VC to eliminate need for external resistor in Package Information a 44 V bus application (41 V to 48 V). The PI2161 is offered in the following package: 17-pin 7mm x 8mm thermally enhanced LGA package, achieving <10C/W R J-PCB Typical Application I OUT V V D SH IN OUT R S SL EN EN SP PI2161 VC SN C VC PG GND VO 0.1 F VO R R PG VO Figure 2 PI2161 response time to output short fault condition Figure 1 PI2161 High Side Disconnect switch Cool-Switch Rev 1.3 vicorpower.com 800 927.9474 Page 1 of 18 02/2014 LOADPI2161 Order Information Part Number Package Transport Media PI2161-01-LGIZ 7mm x 8mm 17-pin LGA T & R Absolute Maximum Ratings Note: Unless otherwise specified, all voltage nodes are referenced to PG Name R ating Drain-to-Source Voltages (V to V and V ) 60 V 25C D SH SL Source Current (I +I ) Continuous 12 A 25C SH SL Source Current (I +I ) Pulsed (10 s) 100 A SH S 1 Source Current (I +I ) Pulsed (300 ns) 150 A SH S 1 Single Pulse Avalanche Current (TAV<11 s) 33 A Junction-to-Ambient Thermal Resistance (R ) 45C/W (0 LFM) J-A Junction-to-PCB Thermal Resistance (R ) 10C/W J-PCB SH, SL, SP, SN to PG -0.3 V to 13 V / 20 mA 4 SH to SL 1.5 V VC to PG -0.3 V to 13 V / 10 mA Drain (D) to PG, Drain (D) to GND -0.3 V to 60 V / 10 mA VO, EN -0.3 V to 60 V / 1 mA Storage Temperature -65C to 150C Operating Junction Temperature -40C to 140C Internal MOSFET Operating Junction Temperature -40C to 150C Lead Temperature (Soldering, 20 sec) 250C ESD Rating CDM Class IV 1 These parameters are not production tested but are guaranteed by design, characterization, and correlation with statistical process control. 4 A sense Resistor (Rs) has to be connected between SH and SL as shown in Figure 1, Rs 2 . Cool-Switch Rev 1.3 vicorpower.com 800 927.9474 Page 2 of 18 02/2014