
4.5kW On-board DC/DC Power Module

Product Features
High efficiency: Reduces energy loss, meets energy conservation and emission reduction requirements, and cuts electricity costs for customers.
High power density: Saves customer space and reduces system costs.
Wide input voltage range: Covers 200V~800V DC input, with high-voltage side startup.
Built-in comprehensive protection and fault self-detection: Greatly improves system reliability, with rich fault detection for convenient customer maintenance.
DSP digital control: Fewer components, higher environmental stability, higher reliability, and easier system expansion.
High vibration resistance: Designed to meet commercial vehicle on-board equipment requirements, and can pass the ISO16750-3 4.1.2.7 test standard.
Wide operating temperature range and high coolant temperature tolerance: Operating temperature range of -40°C ~ 90°C, with full-load output available when coolant temperature does not exceed 65°C, covering the harsh working environment of automobiles.
Product Parameters
|
Item |
Specification |
|
|
General |
Model |
EVMC24-4500M |
|
Dimensions |
285*56*164(D*H*W) |
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|
Weight |
Approx. 4kg |
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|
Coolant temperature |
under 65°C |
| Item | Specification | |
|---|---|---|
| DC Output | Rated Power | 4.5KW |
| Peak Power | 4.95kW with a duration of not less than 6 minutes | |
| Rated Voltage | 27.5V | |
| Rated Current | 164A | |
| Output Voltage Range | 42VDC~58.5VDC;54VDC~58.5VDC (Constant Power Range) | |
| Current Limiting Range | 10%~110% (Stepless) | |
| Thermal Derating |
|
|
| Voltage Ripple | ≤ 500mV (Measured with decoupling capacitors, at output currents exceeding 10% of the rated current). | |
| Voltage Regulation Accuracy | ≤±1% | |
| Current Regulation Accuracy | ≤±1% | |
| Full-load Efficiency | ≥95% (Half) | |
| Peak Efficiency | ≥96.5% |
| Item | Specification | |
|---|---|---|
| HV DC Input | Rated HV Input | 540V |
| Input Voltage Range | 300Vdc~800Vdc (full load) 180Vdc~300Vdc (linear derating) | |
| Input Current | <20A | |
| Startup Mode | Low-Voltage start (High-Voltage start optional) | |
| LV DC Input | LV Input Range | 9Vdc~32Vdc |
| LV Input Current | <2A | |
| Input Protection | Fuse; Reverse Polarity Protection; EMC |
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Item |
Specification |
|
|
Operating Environment |
Operating Temperature |
-40℃~85℃ |
|
Storage Temperature |
-40℃~95℃ | |
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Relative Humidity |
0~95% | |
|
Vibration level |
Broadband random vibration 6Gr ms, referring to 4.1.2.7 in the standard ISO1675 0-3 | |
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Altitude |
Full load output below 2000m |
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Item |
Specification |
|
|
Safety & Reliability |
Dielectric Strength |
In-Chassis: 2828VDC, 1min; In-Out: 3540VDC, 1min; Out-Chassis: 707VDC, 1min |
|
Insulation Resistance |
In-Chassis: > 20MΩ; Out-Chassis: > 220MΩ |
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Safety Standard |
Designed according to EN 61800-5-1:2007 |
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Protection & Alarms |
Comm. Interface |
CAN2.0 125kbps |
|
Power-up State |
Default ON |
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|
Input UVP |
Under-voltage: 180V±5V(Rec: 195V±5V) |
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|
Input OVP |
Over-voltage: 770V±5V (Rec: 755V±5V) |
|
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Over-temp Protection |
Shutdown: >90°C; Auto-recovery: < 75°C (Heatsink temp); Internal Over-temp Protection: Shutdown > 125°C, auto-recovery supported. |
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|
Current Limiting |
Operates at current limit value; Supports long-term loading; Supports 6min+ duration if exceeding rated power. |
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Output Short Circuit |
Hiccup mode; Auto-recovery after fault removal |
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Output OVP |
34.5Vdc±0.5V Shutdown & Lock with alarm; Requires manual reset |
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Output UVP |
18Vdc±0.5V: Alarm only (No shutdown) |
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Internal Faults |
DC Bus OVP/UVP; SCI Comm failure; EEPROM R/W error |
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|
CAN Timeout |
< 2min: Report fault; > 2min: Module shutdown |



