OP-4-18V-5V-Q 9-36 V Input, 5 V/20 A Output Quarter-brick

OP-4-18V-5V-Q

OP-4-18V-5V-Q 9-36 V Input, 5 V/20 A Output Quarter-brick

Property

Value

Maximum Input Current (Max.)

16.6 A

Maximum Input Current (Notes & Conditions)

9 Vin min; trim up; in current limit

No-Load Input Current (enabled) (Typ.)

184 mA

No-Load Input Current (enabled) (Max.)

230 mA

Disabled Input Current (Typ.)

3.6 mA

Disabled Input Current (Max.)

5.0 mA

Response to Input Transient (Typ.)

0.2 V

Response to Input Transient (Notes & Conditions)

300 V/ms input transient; 100 uF output cap.

Input Terminal Ripple Current (Typ.)

370 mA

Input Terminal Ripple Current (Notes & Conditions)

RMS

Recommended Input Fuse (Max.)

30 A

Recommended Input Fuse (Notes & Conditions)

Fast acting fuse recommended

Output Voltage Set Point (Min.)

4.95 V

Output Voltage Set Point (Typ.)

5 V

Output Voltage Set Point (Max.)

5.05 V

Over Line (Typ.)

+/-0.1 %

Over Line (Max.)

+/-0.3 %

Over Load (Typ.)

+/-0.1 %

Over Load (Max.)

+/-0.3 %

Over Temperature (Min.)

-75 mV

Over Temperature (Max.)

75 mV

Total Output Voltage Range (Min.)

4.875 V

Total Output Voltage Range (Max.)

5.125 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.)

68 mV

Peak-to-Peak (Max.)

140 mV

Peak-to-Peak (Notes & Conditions)

Full load

RMS (Typ.)

10 mV

RMS (Max.)

20 mV

RMS (Notes & Conditions)

Full load

Operating Output Current Range (Min.)

0 A

Operating Output Current Range (Max.)

20 A

Operating Output Current Range (Notes & Conditions)

Subject to thermal derating

Output DC Current Limit Inception (Min.)

22.0 A

Output DC Current Limit Inception (Typ.)

24.0 A

Output DC Current Limit Inception (Max.)

26.0 A

Output DC Current Limit Inception (Notes & Conditions)

Output voltage 10 % Low

Output DC Current Limit Shutdown Voltage (Typ.)

2.3 V

Back-Drive Current Limit while Enabled (Typ.)

0.6 A

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

Negative current drawn into output pins

Back-Drive Current Limit while Disabled (Min.)

0 mA

Back-Drive Current Limit while Disabled (Typ.)

15 mA

Back-Drive Current Limit while Disabled (Max.)

50 mA

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

Negative current drawn into output pins

Maximum Output Capacitance (Max.)

8000 uF

Maximum Output Capacitance (Notes & Conditions)

Vout nominal at full load (resistive load)

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

120 mV

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

50 % to 75 % to 50 % Iout max

Settling Time (Typ.)

100 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 Figures 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.)

117.0 %

Output Over-Voltage Protection (Typ.)

122.0 %

Output Over-Voltage Protection (Max.)

127.0 %

Output Over-Voltage Protection (Notes & Conditions)

Over full temp range

Load Current Scale Factor (Typ.)

1000

Load Current Scale Factor (Notes & Conditions)

See Output Load Current app. note on our web

100 % Load (Typ.)

88 %

100 % Load (Notes & Conditions)

See Figure 1 for efficiency curve

50 % Load (Typ.)

90 %

50 % Load (Notes & Conditions)

See Figure 1 for efficiency curve

Operating Input Voltage Range (Min.)

9 V

Operating Input Voltage Range (Typ.)

18 V

Operating Input Voltage Range (Max.)

36 V

Operating Input Voltage Range (Notes & Conditions)

40 V transient for 1 s

Turn-On Voltage Threshold (Min.)

10.0 V

Turn-On Voltage Threshold (Typ.)

10.3 V

Turn-On Voltage Threshold (Max.)

10.5 V

Turn-Off Voltage Threshold (Min.)

8.0 V

Turn-Off Voltage Threshold (Typ.)

8.3 V

Turn-Off Voltage Threshold (Max.)

8.6 V

Lockout Voltage Hysteresis (Typ.)

2 V

Recommended External Input Capacitance (Typ.)

470 uF

Recommended External Input Capacitance (Notes & Conditions)

Typical ESR 0.1-0.2 Ohm

Input Filter Component Values (LC) (Typ.)

0.4723 uH uF

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

Internal values

Non-Operating (Min.)

-1 V

Non-Operating (Max.)

40 V

Non-Operating (Notes & Conditions)

Continuous

Operating (Max.)

36 V

Operating (Notes & Conditions)

Continuous

Operating Transient (Max.)

40 V

Operating Transient (Notes & Conditions)

1 s transient, square wave

Isolation Voltage (Notes & Conditions)

Basic insulation

Input to Output (Max.)

2250 Vdc

Input to Baseplate (Max.)

2250 Vdc

Output to Baseplate (Max.)

2250 Vdc

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.)

9 ms

Turn-On Time (Notes & Conditions)

Full load, Vout = 90 % nom. (from enable)

Start-Up Inhibit Time (Min.)

180 ms

Start-Up Inhibit Time (Typ.)

200 ms

Start-Up Inhibit Time (Max.)

220 ms

Start-Up Inhibit Time (Notes & Conditions)

-40 °C to +125 °C; Figure E

Output Voltage Overshoot (Typ.)

0 %

Output Voltage Overshoot (Notes & Conditions)

Maximum Output Capacitance

Isolation Voltage (dielectric strength) (Notes & Conditions)

See Absolute Maximum Ratings

Isolation Resistance (Typ.)

30 M Ohm

Isolation Capacitance (input to output) (Typ.)

1000 pF

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

See Note 1

Semiconductor Junction Temperature (Max.)

125 °C

Semiconductor Junction Temperature (Notes & Conditions)

Package rated to 150 °C

PCB Temperature (Max.)

125 °C

PCB Temperature (Notes & Conditions)

UL rated max operating temp 130 °C

Transformer Temperature (Max.)

125 °C

Transformer Temperature (Notes & Conditions)

See Common Figure 3 for derating curve

Maximum Baseplate Temperature, Tb (Max.)

100 °C

Switching Frequency (Min.)

230 kHz

Switching Frequency (Typ.)

250 kHz

Switching Frequency (Max.)

270 kHz

Switching Frequency (Notes & Conditions)

Regulation and Isolation stages

Off-State Voltage (Min.)

2.4 V

Off-State Voltage (Max.)

18 V

On-State Voltage (Min.)

-2 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.)

50 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.)

1.49 10^6 Hrs.

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

Tb = 70 °C

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

1.31 10^6 Hrs.

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

Tb = 70 °C

Features

High efficiency operation up to 91% with full power delivery and minimal thermal derating.

Wide 9-36V input voltage range with 40V transient capability and under-voltage lockout.

Comprehensive protection suite including short circuit, over-voltage, and thermal shutdown.

Industry-standard Quarter-brick footprint with an optional flanged baseplate for mounting flexibility.

Advanced regulation features including remote sensing, wide output trim range, and no minimum load requirements.

Fixed frequency switching architecture for predictable EMI performance and simplified system integration.

Fully certified to UL/EN 62368-1 safety standards and RoHS compliant.

Applications

Industrial and Transportation applications