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4690A

2.5W Proton Rad Hard 100K+® DC – DC Converters

Features

RadHard TID >100kRad(Si)

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

Proton Resistant: No optocouplers used

Completely self contained Thick Film Hybrid DC-DC Converter

No External Filter Caps required

Specifications

Input: 28 VDC to VDC
Input Range (Continuous): 16 VDC to 40 VDC
Isolation Input to Case: 500 VDC to VDC
Isolation Input to Output: 500 VDC to VDC
Isolation Output to Case: 100 VDC to VDC
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 28 VDC

Typical INH (off) quiescent current <800uA

Single Output Devices

Parameters	Conditions	4690A-S02 (2.5W)			4690A-S02.5 (2.5W)			4690A-S03.3 (2.5W)
Parameters	Conditions	MIN	TYP	MAX	MIN	TYP	MAX	MIN	TYP	MAX
Output set voltage	—	+1.9	+2.0	+2.1	+2.4	+2.5	+2.6	+3.2	+3.3	+3.4
Output current	V_{in min} — V_{in max}	125mA	—	1.25A	100mA	—	1.0A	75mA	—	0.75A
Efficiency	P_out = max rated load	60%	66%	—	62%	68%	—	67%	69%	—
Line regulation	P_out = max rated load V_{in min} — V_{in max}	—	50mV	100mV	—	50mV	100mV	—	50mV	100mV
Load regulation	P_out = 10% to F.L.	—	50mV	100mV	—	62mV	125mV	—	75mV	250mV
Output ripple	F.L. BW 2 MHz mV_pp	—	30	65	—	30	65	—	30	100

Parameters	Conditions	4690A-S05 (2.5W)			4690A-S05.2 (2.5W)			4690A-S12 (2.5W)
Parameters	Conditions	MIN	TYP	MAX	MIN	TYP	MAX	MIN	TYP	MAX
Output set voltage	—	+4.9	+5.0	+5.1	5.1	+5.2	+5.3	+11.9	+12.0	+12.2
Output current	V_{in min} — V_{in max}	50mA	—	0.50A	48mA	—	0.480A	20.8mA	—	0.208A
Efficiency	P_out = max rated load	73%	77%	—	73%	77%	—	80%	85%	—
Line regulation	P_out = max rated load V_{in min} — V_{in max}	—	50mV	100mV	—	50mV	100mV	—	50mV	200mV
Load regulation	P_out = 10% to F.L.	—	100mV	200mV	—	100mV	200mV	—	250mV	500mV
Output ripple	F.L. BW 2 MHz mV_pp	—	40	125	—	40	85	—	60	150

Parameters	Conditions	4690A-S15 (2.5W)			4690A-S28 (2.5W)
Parameters	Conditions	MIN	TYP	MAX	MIN	TYP	MAX
Output set voltage	—	+14.9	+15.0	+15.1	+27.8	+28.0	+28.2
Output current	V_{in min} — V_{in max}	16.7mA	—	0.167A	9.0mA	—	90.0mA
Efficiency	P_out = max rated load	80%	86%	—	80%	86%	—
Line regulation	P_out = max rated load V_{in min} — V_{in max}	—	50mV	200mV	—	100mV	400mV
Load regulation	P_out = 10% to F.L.	—	300mV	600mV	—	600mV	1.20V
Output ripple	F.L. BW 2 MHz mV_pp	—	75	180	—	150	350

Dual Output Devices

Parameters	Conditions	4690A-D05 (2.5W)			4690A-D12 (2.5W)			4690A-D15 (2.5W)
Parameters	Conditions	MIN	TYP	MAX	MIN	TYP	MAX	MIN	TYP	MAX
Output set voltage	—	+4.9 -4.9	+5.0 -5.0	+5.1 -5.1	+11.9 -11.9	+12.0 -12.0	+12.1 -12.1	+14.9 -14.9	+15.0 -15.0	+15.1 -15.1
Output current	V_{in min} — V_{in max}	± 25mA	—	± 250mA	± 10.4mA	—	± 104mA	± 8.3mA	—	± 83mA
Efficiency	P_out = max rated load	73%	77%	—	80%	85%	—	80%	86%	—
Line regulation	P_out = max rated load V_{in min} — V_{in max}	—	± 50mV	± 100mV	—	± 100mV	± 200mV	—	± 50mV	± 200mV
Load regulation	P_out = 10% to F.L.	—	± 50mV	± 300mV	—	± 250mV	± 0.5V	—	± 300mV	± 600mV
Output ripple	F.L. BW 2 MHz mV_pp	—	40	125	—	60	150	—	75	180

Triple Output Devices

Parameters	Conditions	4690A-3.3/5 (2.5W)			4690A-3.3/12 (2.5W)			4690A-3.3/15 (2.5W)
Parameters	Conditions	MIN	TYP	MAX	MIN	TYP	MAX	MIN	TYP	MAX
Output set voltage	—	+3.2 +4.9 -4.9	+3.3 +5.0 -5.0	+3.4 +5.1 -5.1	+3.2 +11.0 -11.9	+3.3 +12.0 -12.0	+3.4 +12.1 -12.1	+3.2 +14.9 -14.9	+3.3 +15.0 -15.0	+3.4 +15.1 -15.1
Output current	V_{in min} — V_{in max}	40mA ± 25mA	—	380mA ± 250mA	40mA ± 115mA	—	380mA ± 105mA	40mA ± 15mA	—	380mA ± 83mA
Efficiency	P_out = max rated load	60%	63%	—	61%	64%	—	61%	64%	—
Line regulation	P_out = max rated load V_{in min} — V_{in max}	—	25mV	50mV	—	25mV	250mV	—	25mV	250mV
Load regulation	P_out = 10% to F.L.	—	50mV	100mV	—	75mV	150mV	—	80mV	160mV
Output ripple	F.L. BW 2 MHz mV_pp	—	—	50	—	—	50	—	—	50

Parameters	Conditions	4690A-T05 (2.5W)			4690A-T12 (2.5W)			4690A-T15 (2.5W)
Parameters	Conditions	MIN	TYP	MAX	MIN	TYP	MAX	MIN	TYP	MAX
Output set voltage	—	+4.9 +4.9 -4.9	+5.0 +5.0 -5.0	+5.1 +5.1 -5.1	+4.9 +11.9 -11.9	+5.0 +12.0 -12.0	+5.1 +12.1 -12.1	+4.9 +14.9 -14.9	+5.0 +15.0 -15.0	+5.1 +15.1 -15.1
Output current	V_{in min} — V_{in max}	30mA ± 20mA	—	250mA ± 125mA	30mA ± 20mA	—	250mA ± 52mA	30mA ± 20mA	—	250mA ± 42mA
Efficiency	P_out = max rated load	61%	64%	—	65%	70%	—	65%	70%	—
Line regulation	P_out = max rated load V_{in min} — V_{in max}	—	100mV	200mV	—	100mV	200mV	—	100mV	200mV
Load regulation	P_out = 10% to F.L.	—	50mV	100mV	—	75mV	150mV	—	80mV	160mV
Output ripple	F.L. BW 2 MHz mV_pp	—	—	50	—	—	50	—	—	50

Pinout Table

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

Case Styles

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