the MSK6000RH is a radiation hardened dual 5a high side switch module with a current sensing output. each switch is independently controlled with 5v logic and can switch up to 5a maximum current. each switch has its own independent ground reference. the current monitor outputs provide a simple method for monitoring the current in each switch. the device is designed for space applications where quality, performance and low weight are a must. the MSK6000RH is packaged in a hermetic 26 pin flatpack. m.s.kennedy corp. features: description: equivalent schematic 1 2 3 4 5 6 7 8 9 vina vina vina vina vcca imona case vinb vinb pin-out information typical applications mil-prf-38534 and 38535 certified facility 1 rad hard dual high side driver with current sense manufactured using rh 6105 dice radiation hardened to 100krad(si) (method 1019 condition a) 100v rad hard mosfets dual configuration low profile surface mount flatpack 12v to 44v input voltage range 5v to 36v vcc supply range 5a max. rating for rad hard switches contact msk for mil-prf-38534 qualification status high side switch drivers high level switching space applications circuit breaker 6000rh 18 17 16 15 14 13 12 11 10 voutb voutb voutb ctlb gndb imonb vccb vinb vinb 26 25 24 23 22 21 20 19 vouta vouta vouta vouta ctla gnda case voutb 8548-114 rev. f 10/14
44v 36v 150c 6.0v 5a vin absolute maximum ratings vin v cc t j v ctl i out v out 1 2 3 4 5 6 unless otherwise specified the following test conditions shall apply: vcc=vin=+28v, imon resistor=5k to ground. parameter applies to each channel seperately. parameter, if not tested shall be guaranteed to the specified limits in table 1. subgroup 1,4 ta=tc=+25c subgroup 2,5 ta=tc=+125c subgroup 3,6 ta=tc=-55c continuous operation at or above absolute maximum ratings may adversly effect the device performance and/or life cycle. pre and post irradiation limits at 25c, up to 100 krad(si) tid, are identical unless otherwise specified. includes internal sense resistor. notes: input voltage positive supply voltage junction temperature control input voltage ouput current output voltage electrical specifications 2 4 -55c to +150c 265c -40c to +85c -55c to +125c class 1b t c storage temperature range lead temperature (soldering, 10 seconds) case operating temperature MSK6000RH msk6000(k/h)rh esd rating t s t l 8548-114 rev. f 10/14
3 radiation performance curves for tid testing have been generated for all radiation testing performed by ms kennedy. these curves show performance trends throughout the tid test process and are located in the MSK6000RH radiation test report. the complete ra- diation test report is available in the rad hard prod- ucts section on the msk website. application notes total dose radiation test performance vin - the vin pins are connected to sources of mosfets. they provide the voltage supply that is switched to the output pins. high di/dt can be present at these pins during switch on and off transitions. decoupling capacitors are recommended to minimize voltage spikes. vout - the vout pins connect to drains of internal mosfets and are the device power outputs. ctl - the ctl pins connect to the high side switch enabling circuits. when a logic high voltage is present, the high side switches turn on passing power from vin to vout. the ctl pin threshold has no hysterisis. it operates in a linear region between 2.0v typical (off) and 2.7v typical (on) at 25c, 1.3v typical (off) and 2.2v typical (on) at 125c, and 2.6v typical (off) and 3.0v typical (on) at -55c. input signals with fast transitions are recommended to prevent ex- cessive power dissipation. imon - the imon pins connect to the output of the internal rh6105 current sense amplifiers. voltage drop across internal current sense resistor is amplified and a scaled current is sourced from the imon pin. the ratio of imon current to source current is 0.20ma/a. when terminated with a 5k resistor the output voltage is 1v/a. gnd - the gnd pins are the reference for each driver circuit. each channel has it's own ground. the control input signals and current sense outputs are referenced to the respective grounds. vcc - the vcc pins power the current sense amplifier. the vcc pins should be connected to low impedance positive supply source. case - the case connection pins provide an electri- cal connection to the MSK6000RH package. they are electrically isolated from the internal circuitry. typical application circuit high vin application circuit pin functions 8548-114 rev. f 10/14
vout rise time control the output rise time of the MSK6000RH and the associated surge currents can be controlled over a wide range using a few external components as shown in the smplified schematic be- low. power dissipation in the MSK6000RH can increase during turn on or bus voltage transients and should be considered. the circuit below performs the rise time control function by control- ling the voltage drop v r across r bal . assuming a constant cur- rent to linearly change the output capacitance, the MSK6000RH rise time is approximated by the following equation: dt = v rbal ? q1 x r bal x c fb dv out where v rbal =v c - v threshold vout rise time control circuit application notes 4 8548-114 rev. f 10/14
5 typical performance curves propagation delay vin=vcc=28, vctl=0 to 5v,iout=2.5a,rimon=5k propagation delay vin=vcc=28v, vctl=0 to 5v,iout=2.5a,rimon=5k ii330pf 8548-114 rev. f 10/14
ordering information screening level MSK6000RH msk6000hrh msk6000krh mechanical specifications part number 6 industrial mil-prf-38534 class h mil-prf-38534 class k esd triangle indicates pin 1 weight=4.5 grams typical all dimensions are specified in inches 8548-114 rev. f 10/14
7 the information contained herein is believed to be accurate at the time of printing. msk reserves the right to make changes to its products or specifications without notice, however, and assumes no liability for the use of its products. please visit our website for the most recent revision of this datasheet. contact msk for mil-prf-38534 qualification status. m.s. kennedy corp. phone (315) 701-6751 fax (315) 701-6752 www.mskennedy.com revision history 8548-114 rev. f 10/14
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