ELM615DA
36V 5A synchronous Step-down converter with dual-channel current limit
ELM615DA is a high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated high-side and low-side power MOSFETs. ELM615DA uses proprietary constant on-time (COT) control to provide excellent line and load transient response. ELM615DA features slew rate control and spread spectrum frequency modulation to minimize EMI/EMC emissions. With wide input range from 4V to 36V, the converter can deliver output voltage ranging from 0.8V to VIN with up to 5A continuous output current. The converter can be configured as single output or dual outputs with independent constant current (CC) regulation for each output. In the event of output overload or short circuit, the converter will be into hiccup mode. Other protection features include cycle-by-cycle current limit, input under and over voltage protection and thermal shutdown. ELM615DA also provides programmable cable voltage drop compensation by selecting an appropriate external resistor of the divider net work divider. Switching frequency is internally set to 180kHz. ELM615DA is available in SOP-8_EP package.
| Input voltage range | 4V to 36V |
|---|---|
| Output current | 5A |
| Overcurrent protection | Switch cycle |
| Built-in wiring resistance voltage drop compensation circuit | |
| Short circuit protection | Hiccup mode |
| Overheat protection | 155°C |
| Spread spectrum switching | 180kHz 6% FM spread |
| Integrated switch on resistor | 40mΩ high side/ 40mΩ low side |
| Minimum on time | 70nsec |
| Soft-start | 3msec |
| Package | SOP-8 Show datasheet |
| Data sheet | ELM615DA |
- Application
- Dual-port car charger
- Automotive and Industrial Supplies
- Point of Load
Absolute Maximum Ratings
| Parameter | Symbol | Limit | Unit |
|---|---|---|---|
| Supply voltage Vin to GND | Vin | +39 | V |
| PGND-GND Supply voltag | Vpgnd | -0.3 to +0.3 | V |
| SW-GND Supply voltag | Vsw | -0.3 to Vin+0.3 | V |
| SW-GND Surge voltage (30ns) | Vsw_S | -3 to Vin+3 | V |
| BST-SW Supply voltage | Vbst | -0.3 to +6.0 | V |
| All Other Pins to GND | Vall | -0.3 to +6.0 | V |
| Lead temperature | TL | +260 | °C |
| Junction temperature | Tj | +150 | °C |
| Storage temperature range | Tstg | -65 to +150 | °C |
| Thermal resistance | θja | 51 | °C/W |
| Thermal resistance | θjc | 13 | °C/W |
| Power dissipation | Pd | 2.1 | W |
Block diagram
