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廣州智新電源技術有限公司
Guangzhou New Wise Power Technology Co., LTD.
18666225936
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具體型號和參數如下：
PQEB25NRA-G
| Ta = 25 °C, airflow rate = 300 LFM, Vin = 24Vdc | |||||
| Parameter | Min | Typ | Max | Units | Notes&Conditions |
| ABSOLUTE MAXIMUM RATINGS | |||||
| Input Voltage | |||||
| Non-Operating | -1 | 50 | V | Continuous | |
| Operating | 40 | V | Continuous | ||
| Operating Transient Protection | 50 | V | 1S transient,square wave | ||
| Isolation Voltage | |||||
| Input to Output | 2250 | V dc | |||
| Operating Temperature | -40 | 100 | ℃ | ||
| Storage Temperature | -45 | 125 | ℃ | ||
| Voltage at ON/OFF input pin | -2 | 9 | V | ||
| INPUT CHARACTERISTICS | |||||
| Operating Input Voltage Range | 18 | 24 | 36 | V | |
| Input Under-Voltage Lockout | |||||
| Turn-On Voltage Threshold | 16.2 | 17 | 17.9 | V | |
| Turn-off Voltage Threshold | 14.7 | 15.5 | 16.3 | V | |
| Lockout Voltage Hysteresis | 1.5 | V | |||
| Maximum Input Current | 22 | A | ** Load,18V Vin,trimmed up 10% | ||
| No-Load Input Current | 360 | 450 | mA | ||
| Disabled Input Current | 4 | 6 | mA | ||
| Response to Input Transient | 1.9 | V | 0.25V/μs input transient | ||
| Input Reflected Ripple Current | 2 | mA | RMS thru 4.7μH inductor | ||
| Input Terminal Ripple Current | 200 | mA | RMS | ||
| Recommended Input Fuse | 30 | A | Fast acting external fuse recommended | ||
| Recommended External Input Capacitance | 220 | μF | Typical ESR 0.1-0.2Ω;Fiqure 13 | ||
| Input Filter Component Values(C1\LIN\C2) | 0.1\0.22\28.3 | μF\μH\μF | Intemal values;see Figure D | ||
| OUTPUT CHARACTERISTICS | |||||
| Output Voltage Set Point | 11.8 | 12 | 12.12 | V | |
| Output Voltage Regulation | |||||
| Over Line | ±0.25 | ±0.35 | % | See Note 1 | |
| Over Load | ±0.25 | ±0.35 | %\mV | See Note 1 | |
| Over Temperature | -300 | 300 | mV | ||
| Total Output Voltage Range | 11.64 | 12.36 | V | Over sample,line,load,temperature&life | |
| Output Voltage Ripple and Noise | 20MHz bandwidth;See Note 2 | ||||
| Peak-to-Peak | 100 | mv | ** Load | ||
| RMS | 24 | mv | ** Load | ||
| Operating Output Current Range | 0 | 25 | A | Subject to thermal derating | |
| Output DC Current-Limit Inception | 27.5 | 30 | 32.5 | A | Output Voltage 10% Low |
| Output DC Current-Limit Shutdown Voltage | 5 | V | See note 3 | ||
| Back-Drive Current Limit while Enabled | 5 | A | Negative current drawn from output | ||
| Back-Drive Current Limit while Disabled | 3 | 4 | mA | Negative current drawn from output | |
| Maximum Output Capacitance Electrolytic | 12 | Mf | Nominal Vout at ** load(resistive load) | ||
| EFFICIENCY | |||||
| ** Load | 95 | % | Figures 1-2 | ||
| 50% Load | 96 | % | Figures 1-2 | ||
| DYNAMIC CHARACTERISTICS | |||||
| Output Voltage during Load Current Transient | |||||
| Step Change in Output Current(0.1A/μs) | 400 | mV | 50%to75%to50% Iout max | ||
| Step Change in Output Current(5A/μs) | 350 | mV | 50%to75%to50% Iout max | ||
| Settling time | 0.1 | ms | To within 1% Vout nom | ||
| Turn-On Transient | |||||
| Turn-On Time | 35 | ms | Full load,Vout=90% nom,Figures 9 &10 | ||
| Output Voltage Overshoot | 2 | % | Maximum Output Capacitance | ||
| ISOLATION CHARACTERISTICS | |||||
| Isolation Voltage(dielectic strength) | 2250 | V | See Absolute Maximum Ratings | ||
| Isolation Resistance | 30 | MΩ | |||
| Isolation Capacitance(input to output) | 1000 | pF | See Note 3 | ||
| TEMPERATURE LIMITS FOR POWER DERATING CURVES | |||||
| Semiconductor Junction Temperature | 125 | ℃ | Package rated to 150℃ | ||
| Board Temperature | 125 | ℃ | UL rated max operating temp 130℃ | ||
| Transformer Temperature | 125 | ℃ | |||
| FEATURE CHARACTERISTICS | |||||
| Switching Frequency Regulation Stage | 230 | 240 | 250 | kHz | |
| Switching Frequency Isolation Stage | 115 | 120 | 125 | kHz | |
| ON/OFF Control(Option P) | |||||
| Off-State Voltage | -2 | 0.8 | V | ||
| On-Srate Voltage | 2.4 | 9 | V | ||
| ON/OFF Control(Option N) | |||||
| Off-State Voltage | 2.4 | 9 | V | ||
| On-Srate Voltage | -2 | 0.8 | |||
| ON/OFF Control(Either Option) | Application notes;Figure A | ||||
| Pull-Up Voltage | 4.75 | 5 | 5.25 | V | |
| Pull-Up Resistance | 20 | KΩ | |||
| Output Voltage Trim Range | -50 | 10 | % | Measured across Pins 8 &4;Figure B | |
| Output Over-Voltage Protection | 113 | 118 | 123 | % | Over Full Temperature Range;% of nominial Vout |
| Over-Temperature Shutdown | 120 | ℃ | Average PCB Temperature | ||
| Over-Temperature Shutdown Restart Hysteresis | 10 | ℃ | |||
| RELIABILITY CHARACTERISTICS | |||||
| Calculated MTBF(Telcordia) | 3.5 | 106Hrs | TR-NWT-000332;80% load,300LFM,40℃ Ta | ||
| Calculated MTBF(MIL-217) | 2.7 | 106Hrs | MIL-HDBK-217F;80% load,300LFM,40℃ Ta | ||
| Field Demonstrated MTBF | 106Hrs | See our website for details | |||