OP-2-385V-28V-H 180-425V Input, 28V/10.7A Output Half-brick

OP-2-385V-28V-H

OP-2-385V-28V-H 180-425V Input, 28V/10.7A Output Half-brick

Property

Value

Maximum Input Current (Max.)

3.0 A

Maximum Input Current (Notes & Conditions)

Vin min; trim up; in current limit

No-Load Input Current (Typ.)

40 mA

No-Load Input Current (Max.)

60 mA

Disabled Input Current (Typ.)

5.0 mA

Disabled Input Current (Max.)

10.0 mA

Response to Input Transient (Typ.)

1.50 V

Response to Input Transient (Notes & Conditions)

Peak

Input Terminal Ripple Current (Typ.)

50 mA

Input Terminal Ripple Current (Notes & Conditions)

RMS, Full load, 20 MHz bandwidth

Recommended Input Fuse (Max.)

5.0 A

Recommended Input Fuse (Notes & Conditions)

Fast acting external fuse recommended

Output Voltage Set Point (Min.)

27.72 V

Output Voltage Set Point (Typ.)

28.00 V

Output Voltage Set Point (Max.)

28.28 V

Over Line (Typ.)

+/-0.1 %

Over Line (Max.)

+/-0.3 %

Over Load (Typ.)

+/-0.1 %

Over Load (Max.)

+/-0.3 %

Over Temperature (Min.)

-140 mV

Over Temperature (Max.)

140 mV

Total Output Voltage Range (Min.)

27.30 V

Total Output Voltage Range (Max.)

28.70 V

Total Output Voltage Range (Notes & Conditions)

Over sample, line, load, temperature & life

Output Voltage Ripple and Noise (Notes & Conditions)

20 MHz bandwidth

Peak-to-Peak (Typ.)

190 mV

Peak-to-Peak (Max.)

380 mV

Peak-to-Peak (Notes & Conditions)

Full load

RMS (Typ.)

54 mV

RMS (Max.)

108 mV

RMS (Notes & Conditions)

Full load

Operating Output Current Range (Max.)

10.7 A

Operating Output Current Range (Notes & Conditions)

Subject to thermal derating

Output DC Current-Limit Inception (Min.)

11 A

Output DC Current-Limit Inception (Typ.)

13.0 A

Output DC Current-Limit Inception (Max.)

15 A

Output DC Current-Limit Inception (Notes & Conditions)

Output voltage 10% Low

Output DC Current-Limit Shutdown Voltage (Typ.)

16.0 V

Back-Drive Current Limit while Enabled (Typ.)

1.3 A

Back-Drive Current Limit while Enabled (Notes & Conditions)

Negative current drawn from output

Back-Drive Current Limit while Disabled (Typ.)

4.0 mA

Back-Drive Current Limit while Disabled (Notes & Conditions)

Negative current drawn from output

Maximum Output Capacitance (Max.)

3,000 uF

Maximum Output Capacitance (Notes & Conditions)

Vout nominal at full load (resistive load)

Settling Time (Typ.)

250 us

Settling Time (Notes & Conditions)

To within 1% Vout nom

Output Voltage Trim Range (Min.)

-20 %

Output Voltage Trim Range (Max.)

10 %

Output Voltage Trim Range (Notes & Conditions)

Across Pins 8&4; Common Figs 3-5

Output Voltage Remote Sense Range (Max.)

10 %

Output Voltage Remote Sense Range (Notes & Conditions)

Across Pins 8&4

Output Over-Voltage Protection (Min.)

33 V

Output Over-Voltage Protection (Typ.)

35 V

Output Over-Voltage Protection (Max.)

37 V

Output Over-Voltage Protection (Notes & Conditions)

Over full temp range

100% Load (Typ.)

89 %

100% Load (Notes & Conditions)

See Figure 1 for efficiency curve

50% Load (Typ.)

87 %

50% Load (Notes & Conditions)

See Figure 1 for efficiency curve

Operating Input Voltage Range (Min.)

180 V

Operating Input Voltage Range (Typ.)

385 V

Operating Input Voltage Range (Max.)

425 V

Operating Input Voltage Range (Notes & Conditions)

475V transient for 1Sec

Turn-On Voltage Threshold (Min.)

169.0 V

Turn-On Voltage Threshold (Typ.)

174.0 V

Turn-On Voltage Threshold (Max.)

178.0 V

Turn-Off Voltage Threshold (Min.)

154.0 V

Turn-Off Voltage Threshold (Typ.)

162.0 V

Turn-Off Voltage Threshold (Max.)

170.0 V

Lockout Voltage Hysteresis (Typ.)

10.0 V

Input Over-Voltage Shutdown (Typ.)

500 V

Recommended External Input Capacitance (Typ.)

3.3 uF

Recommended External Input Capacitance (Notes & Conditions)

Typical ESR 8 Ohm see Note 2

Input Filter Component Values (LC) (Typ.)

11.41 uHuF

Input Filter Component Values (LC) (Notes & Conditions)

Internal values

Non-Operating (Min.)

-1 V

Non-Operating (Max.)

600 V

Non-Operating (Notes & Conditions)

Continuous

Operating (Max.)

425 V

Operating (Notes & Conditions)

Continuous

Operating Transient Protection (Max.)

475 V

Operating Transient Protection (Notes & Conditions)

1sec transient, square wave

Input to Output (Max.)

4250 V dc

Input to Output (Notes & Conditions)

Reinforced Insulation

Input to Base-Plate (Max.)

2300 V dc

Input to Base-Plate (Notes & Conditions)

Basic Insulation

Output to Base-Plate (Max.)

2300 V dc

Output to Base-Plate (Notes & Conditions)

Basic Insulation

Operating Temperature (Min.)

-40 °C

Operating Temperature (Max.)

100 °C

Operating Temperature (Notes & Conditions)

Baseplate temperature

Storage Temperature (Min.)

-45 °C

Storage Temperature (Max.)

125 °C

Voltage at ON/OFF input pin (Min.)

-2 V

Voltage at ON/OFF input pin (Max.)

18 V

Turn-On Time (Typ.)

42 ms

Turn-On Time (Notes & Conditions)

Full load, Vout=90% nom.

Start-Up Inhibit Time (Min.)

360 ms

Start-Up Inhibit Time (Typ.)

400 ms

Start-Up Inhibit Time (Max.)

440 ms

Start-Up Inhibit Time (Notes & Conditions)

-40 °C to +85 °C; Figure E

Output Voltage Overshoot (Typ.)

0 %

Output Voltage Overshoot (Notes & Conditions)

Maximum Output Capacitance

Isolation Voltage (dielectric strength) (Max.)

4250 V

Isolation Voltage (dielectric strength) (Notes & Conditions)

See Absolute Maximum Ratings

Isolation Resistance (Typ.)

100 M Ohm

Isolation Resistance (Notes & Conditions)

per EN 60255-5

Isolation Capacitance (input to output) (Notes & Conditions)

See Note 3

Semiconductor Junction Temperature (Max.)

125 °C

Semiconductor Junction Temperature (Notes & Conditions)

Package rated to 150 °C

Board Temperature (Max.)

125 °C

Board Temperature (Notes & Conditions)

UL rated max operating temp 130 °C

Transformer Temperature (Max.)

125 °C

Maximum Baseplate Temperature, Tb (Max.)

100 °C

Switching Frequency (Min.)

510 kHz

Switching Frequency (Typ.)

550 kHz

Switching Frequency (Max.)

590 kHz

Switching Frequency (Notes & Conditions)

Isolation stage switching freq. is half this

Clk Sync (Full feature) (Min.)

600 kHz

Clk Sync (Full feature) (Max.)

630 kHz

Clk Sync (Full feature) (Notes & Conditions)

Note 4, Also please see app section

Off-State Voltage (Min.)

2.4 V

Off-State Voltage (Max.)

18 V

On-State Voltage (Min.)

-1.0 V

On-State Voltage (Max.)

0.8 V

ON/OFF Control (Notes & Conditions)

Application notes Figures A & B

Pull-Up Voltage (Typ.)

5 V

Pull-Up Resistance (Typ.)

68 k Ohm

Over-Temperature Shutdown OTP Trip Point (Typ.)

125 °C

Over-Temperature Shutdown OTP Trip Point (Notes & Conditions)

Average PCB Temperature

Over-Temperature Shutdown Restart Hysteresis (Typ.)

10 °C

Calculated MTBF (Telcordia) TR-NWT-000332 (Typ.)

837 10^3 Hrs.

Calculated MTBF (Telcordia) TR-NWT-000332 (Notes & Conditions)

Tb = 70°C

Calculated MTBF (MIL-217) MIL-HDBK-217F (Typ.)

928 10^3 Hrs.

Calculated MTBF (MIL-217) MIL-HDBK-217F (Notes & Conditions)

Tb = 70°C

Field Demonstrated MTBF (Units)

10^3 Hrs.

Field Demonstrated MTBF (Notes & Conditions)

See our website for details

Over Temperature (Typ.)

+/-50 mV

Step Change in Output Current (0.1 A/us) (Typ.)

750 mV

Step Change in Output Current (0.1 A/us) (Notes & Conditions)

50% to 75% to 50% Iout max

Operating Output Current Range (Min.)

0 A

Features

High operating efficiency of 82-88% with minimal power derating at full rated load.

Wide 180-425V input voltage range featuring integrated under-voltage and over-voltage protection.

Industry-standard half-brick form factor (2.486" x 2.386" x 0.495") for simplified mechanical integration.

Robust protection suite including current limit, short circuit, over-voltage, thermal shutdown, and active back bias limiting.

Advanced regulation and control with remote sensing, -20%/+10% voltage trimming, and no minimum load requirement.

Predictable EMI performance enabled by a fixed-frequency switching architecture.

Enhanced system functionality featuring optional current sharing, clock synchronization, and start synchronization.

Applications

Industrial and Transportation applications