4690-S03.3

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Proton Rad Hard 100K+® DC – DC Converters

Features

RadHard TID >100kRad(Si)

2:1 Margin: Operates beyond 200kRad TID

No SEE: LET > 82meV*cm^2/mg

Proton Resistant: No optocouplers used

Fully Isolated design

Specifications

Input: 28 to
Input Range (Continuous): 16 to 50
Isolation Input to Case: 500 to
Isolation Input to Output: 500 to
Isolation Output to Case: 100 to
Storage Temp: -55 °C to +150 °C
Shock: 50 G's to G's
Acceleration: 500 G's to G's
Vibration: 30 G's to G's
Weight: 50 gms typical to gms typical

Environment

- Grade EU:
  - Full Output Power at T_case = 85°C
  - Minimum Output Power at T_case = -55°C
    - Linearly derates to zero at T_case = 115

- - TID up to kRad(Si)
  - No SEE up to 60MeV*cm²/mg

- Grade L:
  - Full Output Power at T_case = 85°C
  - Minimum Output Power at T_case = -55°C
    - Linearly derates to zero at T_case = 115

- - TID up to 45kRad(Si)
  - No SEE up to 60MeV*cm²/mg

- Grade LE:
  - Full Output Power at T_case = 125°C
  - Minimum Output Power at T_case = -55°C
    - Linearly derates to zero at T_case = 135

- - TID up to 45kRad(Si)
  - No SEE up to 60MeV*cm²/mg

- Grade S:
  - Full Output Power at T_case = 85°C
  - Minimum Output Power at T_case = -55°C
    - Linearly derates to zero at T_case = 115

- - TID up to 100kRad(Si)
  - No SEE up to 60MeV*cm²/mg

- Grade SE:
  - Full Output Power at T_case = 125°C
  - Minimum Output Power at T_case = -55°C
    - Linearly derates to zero at T_case = 135

- - TID up to 100kRad(Si)
  - No SEE up to 60MeV*cm²/mg

Additional Notes

Typical no load quiescent current <15mA at 28VDC.

Typical INH (off) quiescent current <275uA.

Single Output Devices

Toggle Columns: Parameter - Conditions

Parameters	Conditions	4690-S03.3 (2.5W) MIN	4690-S03.3 (2.5W) TYP	4690-S03.3 (2.5W) MAX
Output set voltage	—	+3.2	+3.3	+3.4
Output current	V_{in min} — V_{in max}	75mA	—	0.75A
Efficiency	P_out = max rated load	67%	69%	—
Line regulation	P_out = max rated load V_{in min} — V_{in max}	—	10mV	30mV
Load regulation	P_out = 10% to F.L.	—	75mV	250mV
Output ripple	F.L. BW 2 MHz mV_pp	—	30	100

Pinout Table

4690-Sxx <24V
Pin-1: BIT
Pin-2: Inhibit Not
Pin-3: Soft Start
Pin-4: Sync
Pin-5: Case
Pin-6: Input Return
Pin-7: + Input
Pin-8: Main Output
Pin-9: Main Output Return
Pin-10: N/C
Pin-11: N/C
Pin-12: N/C

Case Styles

Part Number Designator	Case Style	Pin Count	Mounting	Step File
2	Case Style 2	12	Solder Sealed Flangelss PCB Mount	Download
F – 12 Pin	Case Style 3	12	Solder Sealed Flanged PCB Mount	Download
G	Case Style 5	12	Seam Weld Flangeless PCB Mount	Download
GF	Case Style 6	12	Seam Weld Flanged PCB Mount	Download
UF	Case Style 8	12	Seam Weld Flanged Chassis Mount	Download

					Array
(
    [model_no] => 2
    [diagram] => https://mdipower.com/mdi/products/wp-content/uploads/2020/09/CS-0212n-.png
    [mounting_information] => Solder Sealed Flangelss PCB Mount
    [pin_count] => 12
    [step_file] => 4175
    [style_designator] => 2
    [style_name] => Case Style 2
)

					Array
(
    [model_no] => F – 12 Pin
    [diagram] => https://mdipower.com/mdi/products/wp-content/uploads/2020/09/CS-0312n-F.png
    [mounting_information] => Solder Sealed Flanged PCB Mount
    [pin_count] => 12
    [step_file] => 4089
    [style_designator] => 
    [style_name] => Case Style 3
)

					Array
(
    [model_no] => G
    [diagram] => https://mdipower.com/mdi/products/wp-content/uploads/2020/09/CS-0512n-G.png
    [mounting_information] => Seam Weld Flangeless PCB Mount
    [pin_count] => 12
    [step_file] => 1403
    [style_designator] => G
    [style_name] => Case Style 5
)

					Array
(
    [model_no] => GF
    [diagram] => https://mdipower.com/mdi/products/wp-content/uploads/2020/09/CS-0612n-GF.png
    [mounting_information] => Seam Weld Flanged PCB Mount
    [pin_count] => 12
    [step_file] => 1418
    [style_designator] => GF
    [style_name] => Case Style 6
)

					Array
(
    [model_no] => UF
    [diagram] => https://mdipower.com/mdi/products/wp-content/uploads/2020/09/CS-0812n-UF.png
    [mounting_information] => Seam Weld Flanged Chassis Mount
    [pin_count] => 12
    [step_file] => 1443
    [style_designator] => UF
    [style_name] => Case Style 8
)

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Model: 4690-S03.3