Features
- Electrically screened to SMD 5962-00523
- QML qualified per MIL-PRF-38535 requirements
- EH version acceptance tested to 50krad(Si) (LDR)
- Radiation environment
- High dose rate (50-300rad(Si)/s): 300 krad(Si)
- Low dose rate (0.01rad(Si)/s): 50krad(Si)
- Latch-up immune: dielectrically isolated
- Reverse breakdown voltage (VZ): 2.5V
- Change in VZ vs current (400µA to 10mA): 6mV
- Change in VZ vs temperature (-55°C to +125°C): 15mV
- Maximum reverse breakdown current: 20mA
- Stability Criteria
- Optimum stability is achieved with CL = 10µF between V+ and V- for heavy loads
- Instability region with self-sustaining oscillations is from CL = 1nF to 3µF
- Interchangeable with 1009 and 136 industry types
Description
The Star*Power™ Radiation Hardened IS-1009RH, IS-1009EH are a 2.5V shunt regulator diode is designed to provide a stable 2.5V reference over a wide current range. These devices are designed to maintain stability over the full military temperature range and over time. The 0.2% reference tolerance is achieved by on-chip trimming. An adjustment terminal is provided to allow for the calibration of system errors. The use of this terminal to adjust the reference voltage does not effect the temperature coefficient. Constructed with the Intersil dielectrically isolated EBHF process, these devices are immune to single event latch-up and have been specifically designed to provide highly reliable performance in harsh radiation environments. The IS-1009EH replaces the obsoleted IS-1009RH. Specifications for Rad Hard QML devices are controlled by the Defense Logistics Agency Land and Maritime (DLA). The SMD numbers listed here must be used when ordering. Detailed Electrical Specifications for these devices are contained in SMD 5962-00523.
Parameters
| Attributes | Value |
|---|---|
| Rating | Space |
| Reference Output Voltage (V) | 2.5 |
| Temp. Range (°C) | -40 to +125°C, -55 to +125°C |
| TID HDR (krad(Si)) | 300 |
| TID LDR (krad(Si)) | 50 |
| DSEE (MeV·cm2/mg) | 80 |
| Flow | RH Hermetic |
| Qualification Level | Class V, EM |
| Die Sale Availability? | Yes |
| PROTO Availability? | Yes |
Applications
- Power supply monitoring
- Reference for 5V systems
- A/D and D/A reference
Knowledge Base
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IS-1009EH Power Dissipation
You can assume the actual power dissipation is the lr breakdown current * Vref. The application circuit needs to be designed to have a reverse current (Ir) in the range of 400µA to 10mA. For Ir of 400µA that would be 400µA * 2.5V = 1mW For Ir of 10mA that would ...
Mar 20, 2024 -
IS-1009EH Min/Max Power Supply
There is no min / max recommended power supply only a min / max current through the IS-1009EH part. Please refer to the SMD 5962-00532 section "Recommended operating conditions". The application circuit needs to be designed to have a reverse current in the range of 400µA to 10mA ...
Mar 20, 2024 -
Is there a range for the capacitive load that makes the IS-1009EH unstable?
... tantalum cap across the V+ and V- terminals it doesn't oscillate, and if I do not use a capacitor, it also does not oscillate. Is there a range for the capacitive load that makes the IS-1009EH unstable? Answer:This part is susceptible to output oscillation for a certain ...
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