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Key Features
Output power: 75W
Wide input range: 36-72Vdc
High conversion efficiency: Up to 93%
Line regulation to ±0.5%
Load regulation to ±0.5%
Isolation voltage :1500V
Enable (ON/OFF) control
Output over-Current protection
Hiccup mode short circuit protection
Over-temperature protection
Input under-voltage lock-out
Output voltage trim: ±10% Vout
Product Overview
These DC-DC converter modules use advanced power processing, control and packaging technologies to provide the performance, flexibility, reliability and cost effectiveness of a mature power component. High frequency Active Clamp switching provides high power density with low noise and high efficiency.
1. Electric Characteristics
1.1 Absolute Maximum Ratings
| Parameter | Min | Typ | Max | Units | Notes |
| Input Voltage | 78 | Vdc | Continuous, non-operating | ||
| 75 | Vdc | Continuous, operating | |||
| 78 | Vdc | Operating transient protection,<100mS | |||
| Isolation Voltage | 2000 | Vdc | Input to Output | ||
| Operating Temperature | -20 | 85 | ℃ | In view of PCB Temperature | |
| Storage Temperature | -30 | 95 | ℃ | ||
| Enable to -Vin Voltage | -0.8 | 10 | Vdc |
1.2 Input Characteristics
| Parameter | Min | Typ | Max | Units | Notes |
| Input Voltage Range | 36 | 48 | 72 | Vdc | |
| Under-Voltage Lockout | 35.5 | 35.8 | Vdc | Recovery point | |
| 32 | 34.0 | Vdc | Protect point | ||
| Maximum Input Curren | 2.5 | A | Vin min,Output full load | ||
| Efficiency | 92 | % | Rated input;Rated load | ||
| Dissipation,standby | 7 | 11 | W | No Load | |
| External input | 100 | Proposed electrolytic capacitor in parallel across the Input. ESR0.1-0.2Ω. |
1.3 Output Characteristics
| Parameter | Min | Typ | Max | Units | Notes |
| Output Voltage Set point | 11.88 | 12.00 | 12.12 | Vdc | Rated input voltage,No load |
| Output Voltage Range | 11.76 | 12.00 | 12.24 | Vdc | |
| Output Current Range | 0 | 6.25 | A | ||
| Line Regulation | ±0.05 | ±1 | % | ||
| Load Regulation | ±0.09 | ±1 | % | ||
| Current Limi | 6.8 | 7.5 | 8.1 | A | Output voltage 95% of nominal |
| Short Circuit Current | 0.3 | 6.8 | 7.5 | A | |
| Ripple (RMS) | 70 | mV | Nominal input; full load; 20 MHz bandwidth. | ||
| Noise(Peak-to-Peak) | 120 | mV | |||
| Capacitive load from themachine | 3300 | μF | |||
| External Output | 100 | μF |
Proposed electrolytic capacitor in parallel across the output.ESR 0.1-0.2Ω. |
1.4 Dynamic Response Characteristics
| Parameter | Min | Typ | Max | Units | Notes |
| Change In Output Current | 250 | mV | 50% to 75% to 50% Iout max; (di/dt= 0.1A/µs) | ||
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