MIL-PRF-38534 AND 38535 CERTIFIED FACILITY M.S.KENNEDY CORP. 196RH RAD HARD PRECISION RAIL TO RAIL CURRENT SENSE FEATURES: Manufactured using RH6105 Dice Radiation Hardened to 100 Krad(Si) (Method 1019.7 Condition A) Low Dose Rate Hardened to 50 Krad(Si) (Method 1019.7 Condition D) 11 Neutron Tested to 5X10 n/cm² (Method 1017.2) MIL-PRF-38535 Class V Screening and Order-Specific QCI Available MIL-PRF-38534 Class H or K Screening Available Very Wide Input Common Mode Range Extends 44V Above V- (Independent of V+) Extends -0.3V Below VWide Power Supply Range: 2.85V to 36V Input Offset Voltage: 400μV Maximum Gain Accuracy: 1% Max Gain Configurable with External Resistors Operating Current: 195μA typ. Slew Rate: 2V/μs Sense Input Current When Powered Down: <1μA Full-Scale Output Current: 1mA Minimum Non-Rad Hard EDU's Available DESCRIPTION: The MSK196RH is a radiation hardened precision micropower current sense amplifier with a very wide input common mode range. With Over-the-Top® Technology, the MSK196RH is capable of sensing in high side or low side applications.This combined with external gain setting, and common mode and power supply rejection in excess of 100dB, make the MSK196RH well suited for a variety of current sensing applications. The MSK196RH is hermetically sealed in a 10 pin ceramic flat pack, and is available with straight or gull wing lead form. EQUIVALENT SCHEMATIC PIN-OUT INFORMATION TYPICAL APPLICATIONS High Side or Low Side Current Sensing Current Monitoring on Positive or Negative Supply Voltages Battery Monitoring Fuse MOSFET Monitoring Power Management 1 2 3 4 5 -IN V+ NC VNC 10 9 8 7 6 +IN NC NC VOUT NC CASE=ISOLATED 1 8548-54 Rev. L 10/14 ABSOLUTE MAXIMUM RATINGS VIN Input Voltage (+IN, -IN to V-) Differential Input Voltage Total Supply Voltage from VVCC Output Short Circuit Duration ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ -9.5V to 44V 44V 36V Indefinite 4 ○ ○ ○ ○ 9 ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ TST Storage Temperature Range TLD Lead Temperature Range (10 Seconds) TJ Junction Temperature TC Case Operating Temperature Range MSK196VRH, HRH, KRH MSK196RH MSK196EDU 11 ESD Rating ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ -65°C to +150°C ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ 300°C 150°C -55°C to+125°C -40°C to +85°C -40°C to +85°C Class 1B ○ ○ ○ ○ ○ ○ ○ ELECTRICAL SPECIFICATIONS NOTES: Unless otherwise specified; V+=12V, V-=0V, VS+=12V, RIN1=RIN2 =100W, ROUT=5K(AV = 50), VSENSE=(VS+)-(VS-). Guaranteed by design but not tested. Typical parameters are representative of device performance but are for reference only. A heat sink may be required to keep the junction temperature below absolute maximum ratings. Industrial grade devices shall be tested to subgroup 1 and 4 unless otherwise specified. Military grade devices (“V, K, H” suffix) shall be 100% tested to subgroups 1,2,3, and 4 Subgroup 5 & 6 testing available upon request. Subgroup 1,4 TC = +25°C Subgroup 2,5 TC = +125°C Subgroup 3,6 TC = -55°C 9 Continuous operation at or above absolute maximum ratings may adversely affect the device performance and/or life cycle. 10 Pre and post irradiation limits at 25°C, up to 100 Krad(Si) TID (Condition A) and 50 Krad(Si) TID (Condition D), are identical unless otherwise specified. 11 MSK196EDU does not use Rad Hard die, post irradiation specifications are not applicable. 1 2 3 4 5 6 7 8 2 8548-54 Rev. L 10/14 APPLICATION NOTES PIN FUNCTIONS DEVICE ASSEMBLY -IN - The -IN pin is the negative input terminal of the sense ampli- Due to the bond pad size, this device is manufactured with gold fier. Voltages as high as 44V can be applied to the pin, relative wirebonds. to the negative supply pin V-. HIGH VOLTAGE SENSING For high voltage applications, the MSK196RH can be used with external MOSFETs. The MOSFETs protect the device from the full potential of the high voltage supply. The high voltage supply is the positive rail of the device, and the Zener voltage minus the VGS(on) potential of Q2 determines the negative voltage rail for the + V+ - The V pin is the positive power supply for the device. device; (V-)=(V+)-(VZ-VGS). The device can safely sense current Operational currents are sourced from this pin independent of from 0.3V below the negative rail up to 44V above it indepenthe voltages on the -IN and +IN pins. dent of high voltage supply, and deliver a ground referenced signal via Q1. The values in the application circuit are provided for VOUT - The VOUT pin is the output of the amplifier. The voltage at reference. They may need to be adjusted based on specific applithe output is a function of both the input differential (VSENSE± cation requirements. VOS), and the voltage gain ROUT/RIN1, for RIN1= RIN2. (See typical application ckt for more detail) HIGH VOLTAGE SIMPLE CURRENT MONITOR +IN - The +IN pin is the positive input terminal of the sense amplifier. Voltages as high as 44V can be applied to the pin, relative to the negative supply pin V-. VOUT=ROUT/RIN x (VSENSE ± VOS) Set RIN1=RIN2 for best accuracy SENSE RESISTOR Choose a RSENSE resistor value just large enough to cover the application dynamic range to minimize power dissipation losses. The low 100μV typical offset voltage helps to maintain high resolution while minimizing power dissipation. Kelvin connection of the input resistors to the sense resistor is recommended to minimize error in high current applications. TYPICAL APPLICATION CKT RADIATION TEST PERFORMANCE Radiation performance curves have been generated for all radiation testing performed by MS Kennedy. These curves show performance trends throughout each test process and is located in the MSK196RH radiation test report. The complete radiation test report is available in the RAD HARD PRODUCTS section on the MSK website. ADDITIONAL APPLICATION INFORMATION For additional applications information, please reference Linear Technology Corporation's® LT6105 data sheet. 3 8548-54 Rev. L 10/14 TYPICAL PERFORMANCE CURVES 4 8548-54 Rev. L 10/14 MECHANICAL SPECIFICATIONS ESD TRIANGLE INDICATES PIN 1 WEIGHT=0.36 GRAMS TYPICAL ALL DIMENSIONS ARE SPECIFIED IN INCHES ORDERING INFORMATION MSK196 V RH LEAD CONFIGURATIONS BLANK= STRAIGHT RADIATION HARDENED SCREENING EDU=NON-RAD HARD ENG UNITS BLANK= INDUSTRIAL; V=MIL-PRF-38535 CLASS V; H=MIL-PRF38534 CLASS H; K=MIL-PRF-38534 CLASS K GENERAL PART NUMBER The above example is a Class V screened device with straight leads. 5 8548-54 Rev. L 10/14 MECHANICAL SPECIFICATIONS ESD TRIANGLE INDICATES PIN 1 WEIGHT=0.3 GRAMS TYPICAL ALL DIMENSIONS ARE SPECIFIED IN INCHES ORDERING INFORMATION MSK196 V RH G LEAD CONFIGURATIONS G=GULL WING RADIATION HARDENED SCREENING EDU=NON-RAD HARD ENG UNITS BLANK= INDUSTRIAL; V=MIL-PRF-38535 CLASS V; H=MIL-PRF38534 CLASS H; K=MIL-PRF-38534 CLASS K GENERAL PART NUMBER The above example is a Class V screened device with gull wing lead form. 6 8548-54 Rev. L 10/14 REVISION HISTORY M.S. Kennedy Corp. Phone (315) 701-6751 FAX (315) 701-6752 www.mskennedy.com 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-38535 Class V QCI status. 7 8548-54 Rev. L 10/14