SLVK146 august 2023 TPS7H2211-SEP
PRODUCTION DATA
SETs are defined as heavy-ion-induced transients upsets on the VOUT and the Soft-Start (SS) flag of the TPS7H2211-SP. SET testing was performed at room temperature (no external temperature control applied). The species used for the SET testing was Silver (109Ag) ion with an angle-of-incidence of 0° for an LETEFF = 48 MeV∙cm2/mg respectively, for more details, see Depth, Range, and LETEFF Calculation. Flux of approximately 105 ions/cm2∙s and a fluence of approximately 107 ions/cm2 were used for the 12 SET runs.
VOUT SETs were characterized using a window trigger of ±3% around the nominal output voltage (≈ 4.5 V and 14 V). The devices were characterized with input voltages ranging from VIN = 4.5 V (minimum) to VIN = 14 V (maximum). The output load was set to 3.5 Amps for each run by using a Chroma Load in Constant-Resistance (CR) mode. To capture the two NI-PXI-5172 scope cards of the SET, continuously monitoring the VOUT and the SS were used, respectively. Each scope was operated independently. The output voltage was monitored by using the TP4 and the TP6 test points on the EVM, while the SS was monitored using the TP8 test point.
The scope triggering from VOUT was programmed to record 20 k samples with a sample rate of 5-M samples per second (S/s) in case of a event (trigger). The scope triggering from SS was programmed with 30 ks and 5 MS/s. Both scopes were programmed to record 20% of the data before (pre) the trigger happened.
Not a single upset on VOUT or SS was observed. Table 8-1 lists the SET test condition and results for all the data.
Run Number | Unit Number | Ion | LETEFF (MeV.cm2/mg) | Flux (ions·cm2/s) | Fluence (ions·cm2) | VIN (V) | Enabled | VOUTSET ≥ |3% | (Number) at 25 °C | SSSET (Number) at 25 °C | Load Type (Chroma) | Load Value |
---|---|---|---|---|---|---|---|---|---|---|---|
10 | 4 | 109Ag | 48 | 6.91 × 104 | 1.00 × 107 | 14 | Yes | 0 | 0 | CR | 3.5 |
11 | 4 | 109Ag | 48 | 5.80 × 104 | 1.00 × 107 | 14 | Yes | 0 | 0 | N/A | 0 |
12 | 4 | 109Ag | 48 | 6.29 × 104 | 1.00 × 107 | 12 | Yes | 0 | 0 | CR | 3.5 |
13 | 4 | 109Ag | 48 | 5.51 × 104 | 1.00 × 107 | 12 | Yes | 0 | 0 | N/A | 0 |
14 | 4 | 109Ag | 48 | 5.10 × 104 | 1.00 × 107 | 4.5 | Yes | 0 | 0 | CR | 3.5 |
15 | 4 | 109Ag | 48 | 5.15 × 104 | 1.00 × 107 | 4.5 | Yes | 0 | 0 | N/A | 0 |
16 | 5 | 109Ag | 48 | 1.13 × 105 | 1.00 × 107 | 14 | Yes | 0 | 0 | CR | 3.5 |
17 | 5 | 109Ag | 48 | 1.13 × 105 | 1.00 × 107 | 14 | Yes | 0 | 0 | N/A | 0 |
18 | 5 | 109Ag | 48 | 1.18 × 105 | 1.00 × 107 | 12 | Yes | 0 | 0 | CR | 3.5 |
19 | 5 | 109Ag | 48 | 1.16 × 105 | 1.00 × 107 | 12 | Yes | 0 | 0 | N/A | 0 |
20 | 5 | 109Ag | 48 | 1.11 × 105 | 1.00 × 107 | 4.5 | Yes | 0 | 0 | CR | 3.5 |
21 | 5 | 109Ag | 48 | 1.37 × 105 | 1.00 × 107 | 4.5 | Yes | 0 | 0 | N/A | 0 |
The upper-bound cross-section (using a 95% confidence level) is calculated by combining all runs above as:
σSET ≤ 3.07 × 10–8 cm2/device for LETEFF = 48 MeV·cm2/mg and T = 25°C. Since no VOUT or SS SETs were observed, this cross section is valid for both cases.