OP-4-70V-24V-H 34-135 V Input, 24 V/10 A Output Half-brick

OP-4-70V-24V-H

OP-4-70V-24V-H 34-135 V Input, 24 V/10 A Output Half-brick

Property

Value

Maximum Input Current (Max.)

10.5 A

Maximum Input Current (Notes & Conditions)

Vin min; trim-up ; in current limit (typ)

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

100 mA

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

130 mA

Disabled Input Current (Typ.)

2 mA

Disabled Input Current (Max.)

4 mA

Response to Input Transient (Typ.)

1.7 V

Response to Input Transient (Notes & Conditions)

500 V/ms

Input Terminal Ripple Current (Typ.)

400 mA

Input Terminal Ripple Current (Notes & Conditions)

RMS

Recommended Input Fuse (Max.)

15 A

Recommended Input Fuse (Notes & Conditions)

Fast acting fuse recommended

Output Voltage Set Point (Min.)

23.76 V

Output Voltage Set Point (Typ.)

24.00 V

Output Voltage Set Point (Max.)

24.24 V

Over Line (Typ.)

+/-0.1 %

Over Line (Max.)

+/-0.3 %

Over Load (Typ.)

+/-0.1 %

Over Load (Max.)

+/-0.3 %

Over Temperature (Min.)

-360 mV

Over Temperature (Max.)

360 mV

Total Output Voltage Range (Min.)

23.40 V

Total Output Voltage Range (Max.)

24.60 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.)

200 mV

Peak-to-Peak (Max.)

400 mV

Peak-to-Peak (Notes & Conditions)

Full load

RMS (Typ.)

35 mV

RMS (Max.)

70 mV

RMS (Notes & Conditions)

Full load

Operating Output Current Range (Min.)

0 A

Operating Output Current Range (Max.)

10 A

Operating Output Current Range (Notes & Conditions)

Subject to thermal derating

Output DC Current Limit Inception (Min.)

11.0 A

Output DC Current Limit Inception (Typ.)

12.0 A

Output DC Current Limit Inception (Max.)

13.0 A

Output DC Current Limit Inception (Notes & Conditions)

Output voltage 10 % Low

Output DC Current Limit Shutdown Voltage (Typ.)

15 V

Back-Drive Current Limit while Enabled (Typ.)

0.15 A

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

Negative current drawn into output pins

Back-Drive Current Limit while Disabled (Typ.)

1 mA

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

Negative current drawn into output pins

Maximum Output Capacitance (Max.)

400 uF

Maximum Output Capacitance (Notes & Conditions)

Vout nominal at full load (resistive load)

Settling Time (Typ.)

400 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.)

28.1 V

Output Over-Voltage Protection (Typ.)

29.3 V

Output Over-Voltage Protection (Max.)

30.5 V

Output Over-Voltage Protection (Notes & Conditions)

Over full temp range

100 % Load (Typ.)

88 %

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.)

32.7 V

Turn-On Voltage Threshold (Typ.)

33.1 V

Turn-On Voltage Threshold (Max.)

33.5 V

Turn-Off Voltage Threshold (Min.)

30.4 V

Turn-Off Voltage Threshold (Typ.)

30.8 V

Turn-Off Voltage Threshold (Max.)

31.2 V

Lockout Voltage Hysteresis (Typ.)

2.3 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.)

3.44.0 uHuF

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

Internal values

Non-Operating (Max.)

150 V

Non-Operating (Notes & Conditions)

Continuous

Operating (Max.)

135 V

Operating (Notes & Conditions)

Continuous

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)

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

Maximum Baseplate Temperature, Tb (Max.)

100 °C

Switching Frequency (Min.)

255 kHz

Switching Frequency (Typ.)

275 kHz

Switching Frequency (Max.)

295 kHz

Switching Frequency (Notes & Conditions)

Isolation stage switching freq. is half this

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.)

1.44 10⁶ Hrs.

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

Tb = 70 °C

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

1.20 10⁶ Hrs.

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

Tb = 70 °C

Step Change in Output Current (0.2 A/us) (Typ.)

1300 mV

Step Change in Output Current (0.2 A/us) (Notes & Conditions)

50 % to 75 % to 50 % Iout max

Operating Transient (Max.)

V

Features

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

Wide input voltage range of 34-135 V and extensive output voltage trim capability.

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

Certified to UL/CSA/EN 60950-1 safety standards featuring reinforced insulation and CE marking.

Industry-standard half-brick footprint with optional flanged baseplate and RoHS compliance.

Fixed frequency switching for predictable EMI and remote sense for precise voltage regulation.

Advanced control features including active back drive current limiting and no minimum load requirement.

Applications

Industrial and Transportation applications