OP-4-70V-7V-Q 34-135 V Input, 7.0 V/18 A Output Quarter-brick

OP-4-70V-7V-Q

OP-4-70V-7V-Q 34-135 V Input, 7.0 V/18 A Output Quarter-brick

Property

Value

Maximum Input Current (Max.)

5.4 A

Maximum Input Current (Notes & Conditions)

Vin min; trim up; in current limit

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

80 mA

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

100 mA

Disabled Input Current (Typ.)

2 mA

Disabled Input Current (Max.)

4 mA

Response to Input Transient (Typ.)

0.18 V

Response to Input Transient (Notes & Conditions)

See Figure 6

Input Terminal Ripple Current (Typ.)

350 mA

Input Terminal Ripple Current (Notes & Conditions)

RMS

Recommended Input Fuse (Max.)

10 A

Recommended Input Fuse (Notes & Conditions)

Fast acting fuse recommended

Output Voltage Set Point (Min.)

6.930 V

Output Voltage Set Point (Typ.)

7.000 V

Output Voltage Set Point (Max.)

7.070 V

Over Line (Typ.)

+/-0.1 %

Over Line (Max.)

+/-0.3 %

Over Load (Typ.)

+/-0.1 %

Over Load (Max.)

+/-0.3 %

Over Temperature (Min.)

-105 mV

Over Temperature (Max.)

105 mV

Total Output Voltage Range (Min.)

6.825 V

Total Output Voltage Range (Max.)

7.175 V

Total Output Voltage Range (Notes & Conditions)

Over sample, line, load, temperature & life

Peak-to-Peak (Typ.)

100 mV

Peak-to-Peak (Max.)

180 mV

Peak-to-Peak (Notes & Conditions)

Full load

RMS (Typ.)

30 mV

RMS (Max.)

80 mV

RMS (Notes & Conditions)

Full load

Operating Output Current Range (Min.)

0 A

Operating Output Current Range (Max.)

18 A

Operating Output Current Range (Notes & Conditions)

Subject to thermal derating

Output DC Current Limit Inception (Min.)

19.8 A

Output DC Current Limit Inception (Typ.)

21.6 A

Output DC Current Limit Inception (Max.)

23.4 A

Output DC Current Limit Inception (Notes & Conditions)

Output voltage 10 % Low

Output DC Current Limit Shutdown Voltage (Typ.)

3.5 V

Back-Drive Current Limit while Enabled (Typ.)

0.9 A

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

Negative current drawn into output pins

Back-Drive Current Limit while Disabled (Typ.)

5 mA

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

Negative current drawn into output pins

Maximum Output Capacitance (Max.)

8,000 uF

Maximum Output Capacitance (Notes & Conditions)

Vout nominal at full load (resistive load)

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

260 mV

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

50 % to 75 % to 50 % Iout max

Settling Time (Typ.)

500 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.)

8.2 V

Output Over-Voltage Protection (Typ.)

8.5 V

Output Over-Voltage Protection (Max.)

8.9 V

Output Over-Voltage Protection (Notes & Conditions)

Over full temp range

100 % Load (Typ.)

91 %

100 % Load (Notes & Conditions)

See Figure 1 for efficiency curve

50 % Load (Typ.)

92 %

50 % Load (Notes & Conditions)

See Figure 1 for efficiency curve

Operating Input Voltage Range (Min.)

34 V

Operating Input Voltage Range (Typ.)

70 V

Operating Input Voltage Range (Max.)

135 V

Turn-On Voltage Threshold (Min.)

32.6 V

Turn-On Voltage Threshold (Typ.)

32.9 V

Turn-On Voltage Threshold (Max.)

33.8 V

Turn-Off Voltage Threshold (Min.)

30.4 V

Turn-Off Voltage Threshold (Typ.)

30.7 V

Turn-Off Voltage Threshold (Max.)

31 V

Lockout Voltage Hysteresis (Typ.)

2.2 V

Recommended External Input Capacitance (Typ.)

100 uF

Recommended External Input Capacitance (Notes & Conditions)

Typical ESR 0.1 – 0.2 Ohm

Input Filter Component Values (LC) (Typ.)

4.71.5 uH uF

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

Internal values

Non-Operating (Min.)

-1 V

Non-Operating (Max.)

150 V

Non-Operating (Notes & Conditions)

Continuous

Operating (Max.)

135 V

Operating (Notes & Conditions)

Continuous

Operating Transient (Units)

V

Input to Output (Max.)

3000 Vdc

Input to Baseplate (Max.)

3000 Vdc

Output to Baseplate (Max.)

3000 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.)

10 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 (Min.)

100 M Ohm

Isolation Resistance (Notes & Conditions)

500V EN 60255-5

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

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)

Same for the isolation stage

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

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

Output Voltage Ripple and Noise (Notes & Conditions)

20 MHz bandwidth

ON/OFF Control (Notes & Conditions)

Application notes Figures A & B

Features

High efficiency up to 91% at full rated load with minimal power derating.

Wide 34-135 V input voltage range and adjustable output via remote sense and wide trim range.

Industry-standard Quarter-brick footprint with fixed frequency switching for predictable EMI.

Comprehensive protection suite including input UVLO, output OVP, current limiting, and thermal shutdown.

Flexible system integration with no minimum load requirement and input-referenced On/Off control.

Fully compliant with UL/CSA/EN 60950-1 safety standards, CE marked, and RoHS compliant.

Compact and lightweight form factor with an optional flanged baseplate for enhanced mounting.

Applications

Industrial and Transportation applications