ISL70061SEH

Radiation Hardened 10A PMOS Load Switch

OVERVIEW

The ISL70061SEH is a radiation hardened single channel load switch featuring ultra-low rON and controlled rise time. This device uses a PMOS pass device as the main switch that operates across an input voltage range of 3V to 5.5V and can support a maximum of 10A continuous current. Simple ON/OFF digital control inputs make the device capable of interfacing directly with low voltage control signals from an FPGA, MCU, or processor.

Additional features include reverse current protection to stop current from flowing toward the input when the output SWO voltage increases above the input SWI voltage, a selectable 122Ω MOSFET to discharge the output, and Undervoltage Lockout (UVLO) protection that keeps the switch OFF when the input voltage is too low.

The ISL70061SEH device operates across the military temperature range from -55°C to +125°C and is available in a 14 Ld hermetically sealed Ceramic Dual Flatpack (CDFP) package or in die form.

KEY FEATURES

  • Electrically screened to DLA SMD 5962-19208
  • Integrated high speed load switch
    • Turn-off time of 3µs
  • Ultra-low ON-resistance (rON) of 14mΩ typical
  • Continuous 10A switch current
  • Controlled rise time to minimize inrush current
  • Reverse current protection
  • Simple ON/OFF logic control
  • Undervoltage lockout
  • Selectable 122Ω discharge MOSFET
  • Radiation acceptance testing
    • HDR (50-300rad(Si)/s): 100krad(Si)
    • LDR (0.01rad(Si)/s): 75krad(Si)
  • SEE hardness (see SEE report for details)
    • No SEB/SEL LETTH, SWI, SWO, ON, DON = 6.7V: 86MeV•cm2/mg
  •  

     

    APPLICATIONS

  • Satellites power distribution management
  • Power system redundancy
  • Power sequencing
  • Power system fault management
  • Space VPX systems

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL70061SEH
Basic Information
# of Channels/Device
1
FET Pass Device Type
PMOS
Input Voltage Min (V)
3
Input Voltage Max (V)
5.5
Continuous Output Current
10
Ron (mOhm) typ.
14
Rise Time (μs)
625
Turn-off time (μs)
3
Quiescent current (Iq) (μs) typ.
24
Class
V, /PROTO
High Dose Rate (HDR) krad (Si)
100
Low Dose Rate (ELDRS) krad (Si)
75
SEL (MeV/mg/cm2)
86
DLA SMD
19208
SMD URL
Qualification Level
QML Class V (space)
Temperature Range
-55 to +125

Action Needed