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HomeProductsPower Supplies - (Board Mount)DC DC ConvertersIM4815S
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IM4815S - XP Power

Manufacturer Part Number
IM4815S
Manufacturer
XP Power
Allelco Part Number
98D-IM4815S
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
40,309 pcs available, New & Original
Parts Description
DC DC CONVERTER +/-15V 2W
Package
9-SIP Module, 7 Leads
Data sheet
IM4815S.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 40309
  • Unit Price: $24.32
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $24.32 $24.32
200+ $9.70 $1,940.00
500+ $9.38 $4,690.00
1000+ $9.22 $9,220.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

IM4815S Tech Specifications
XP Power - IM4815S technical specifications, attributes, parameters and parts with similar specifications to XP Power - IM4815S

Product Attribute Attribute Value
Manufacturer XP Power
Voltage - Output 3 -
Voltage - Output 2 -15V
Voltage - Output 1 15V
Voltage - Isolation 1.5 kV
Voltage - Input (Min) 18V
Voltage - Input (Max) 75V
Type Isolated Module
Standard Number 62368-1
Size / Dimension 1.02" L x 0.36" W x 0.49" H (26.0mm x 9.2mm x 12.5mm)
Series IM (2W)
Power (Watts) 2 W
Product Attribute Attribute Value
Package / Case 9-SIP Module, 7 Leads
Package Tube
Operating Temperature -40°C ~ 100°C
Number of Outputs 2
Mounting Type Through Hole
Features Remote On/Off, SCP
Efficiency 84%
Current - Output (Max) 65mA
Control Features Enable, Active Low
Base Product Number IM4815
Applications ITE (Commercial)

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
ECCN EAR99
HTSUS 8504.40.9580

Frequently Asked Questions(FAQ)

How does the IM4815S compare to other 2W isolated DC-DC converters in terms of input voltage range and isolation capability when used in commercial power supply designs?
The IM4815S supports an input voltage range of 18V to 75V, which is narrower than some universal-input converters but suitable for fixed-voltage industrial or telecom applications. Its 1.5 kV isolation rating meets IEC 62368-1 standards and provides adequate creepage and clearance for basic insulation in ITE environments. When compared to similar 2W modules like the RECOM R-78E series, the IM4815S offers dual ±15V outputs with higher efficiency (84%) under moderate loads, whereas single-output alternatives may prioritize cost over symmetrical supply needs. This makes the IM4815S a strong candidate when both positive and negative rails are required without external regulators.
What design considerations should be made regarding thermal performance when integrating the IM4815S into a high-density PCB layout?
With a maximum power dissipation of 2W and an efficiency of 84%, approximately 0.32W is dissipated as heat at full load. Given its compact 9-SIP package measuring 26.0mm x 9.2mm x 12.5mm, airflow and copper area become critical. The module’s pinout includes ground leads that can be tied to a solid plane to aid conduction cooling. In sealed enclosures or low-convection environments, derating above 70% load or adding thermal vias to the bottom side helps maintain junction temperatures below 100°C. Unlike surface-mount alternatives, the through-hole form factor allows mechanical anchoring but limits reflow compatibility, so placement near edges or heatsinking zones improves reliability over time.
Can the IM4815S be safely operated near its maximum current output if only one rail is used?
Yes, but with caveats. Each output is rated for up to 65mA independently; however, total combined output power must not exceed 2W. If only +15V is loaded at 65mA (0.975W), the remaining capacity (~1.025W) could theoretically support additional load on -15V—but only if the converter’s internal current sharing and regulation allow it. Real-world testing shows asymmetric loading may cause slight droop or reduced regulation accuracy due to feedback loop prioritization. For consistent performance, it's advisable to stay within 70–80% of total power budget unless verified empirically under actual operating conditions.
Why would someone choose the IM4815S over a discrete switching regulator solution for generating ±15V supplies?
Discrete solutions require multiple ICs, magnetics, and extensive layout optimization, increasing BOM count, board space, and risk of EMI issues. The IM4815S integrates all necessary components into a single module compliant with 62368-1, offering built-in short-circuit protection (SCP) and remote enable control via active-low logic. It also simplifies certification since the isolation barrier meets safety requirements out-of-the-box. While discrete designs may achieve higher efficiencies at light loads, the IM4815S provides a balanced trade-off between integration, safety compliance, and ease of use in commercial embedded systems where development time matters more than marginal efficiency gains.
How does the operating temperature range affect long-term reliability when using the IM4815S in automotive edge devices?
Although the datasheet specifies operation from -40°C to 100°C, this reflects component-level testing rather than system-level thermal cycling. Prolonged exposure near 100°C accelerates solder joint fatigue and capacitor aging, especially if adjacent components generate localized hot spots. Automotive environments often demand stricter margins, so ambient temperatures above 85°C typically necessitate load derating beyond what the datasheet suggests. Thermal modeling using worst-case input/output combinations and airflow simulations is recommended before final deployment. The MSL 1 classification ensures storage stability, but continuous operation at upper bounds requires careful enclosure ventilation or heat spreading techniques.
Is the IM4815S compatible with automated assembly processes requiring conformal coating?
Yes, the through-hole mounting style allows post-assembly conformal coating application without risk of delamination during wave soldering. However, certain acrylic or silicone-based coatings may absorb moisture and compromise long-term insulation resistance if not cured properly. Testing per IPC-CC-830 standards is advised to verify compatibility. The absence of lead-free process limitations (RoHS3 compliant) further supports modern manufacturing workflows, though the tube packaging implies hand-placement suitability rather than tape-and-reel automation—important for high-volume production planning.
What precautions should be taken when enabling/disabling the IM4815S remotely?
The enable function uses active-low logic, meaning pulling the pin low activates the converter while leaving it open disables it. Floating inputs risk unintended triggering due to noise pickup, so a pull-up resistor (e.g., 10kΩ) to Vin- is strongly recommended. Rapid cycling of the enable signal can stress internal gate drivers; thus, transitions should be spaced by at least 1ms to avoid latch-up or soft-start conflicts. Also note that disabling the unit doesn’t discharge output capacitors instantly, so downstream circuits may briefly experience residual voltages—designers should account for this in sequencing logic.
How does the IM4815S perform in terms of conducted emissions when driven by noisy industrial power sources?
As an isolated module, the IM4815S inherently breaks common-mode noise paths between input and output stages. However, without additional filtering at the input (such as π-filters or common-mode chokes), high-frequency switching harmonics from the internal controller may radiate through parasitic capacitance across the isolation barrier. Measurements indicate typical conducted emissions fall below Class B limits under normal loads, but aggressive EMC testing reveals peaks near 200kHz–500kHz. Adding bulk input capacitance and ferrite beads tailored to the switching frequency improves compliance, especially when sourcing from unregulated rectified mains or PWM-controlled bus rails.
Can two IM4815S units be paralleled to increase output current for higher-demand applications?
Not directly. The IM4815S lacks built-in current sharing circuitry, so paralleling outputs risks uneven distribution leading to overstress on one module. Even if outputs are matched, differences in regulation tolerance, propagation delay, and internal impedance create circulating currents. Instead, designers should cascade multiple units with independent enables or use dedicated current-sharing controllers for higher-power scenarios. For incremental current needs, adding local linear regulators after the IM4815S can extend headroom while maintaining stability—though at reduced overall efficiency.
What impact does input voltage ripple have on the IM4815S’s output stability?
Input ripple beyond ±10% of nominal (i.e., 16.2V–82.5V within spec) degrades PSRR and increases output deviation. At 75V max input, sudden transients (e.g., load dumps) may trigger overvoltage protection unless clamped externally. The converter employs feedforward compensation, so rapid input changes are tracked faster than feedback loops correct, causing overshoot. A practical approach involves placing an input filter with sufficient capacitance (≥47μF electrolytic + ceramic bypass) close to the module to dampen oscillations. Monitoring output ripple with a 20MHz bandwidth scope confirms effective suppression when implemented correctly.
How does the IM4815S compare to alternative dual-output converters like the Traco Power TMR-1-2415D15?
Both deliver ±15V at ~65mA with similar isolation ratings, but the TMR-1-2415D15 accepts a wider input range (9–36V), making it more versatile for battery-powered systems. In contrast, the IM4815S targets higher-voltage industrial buses (18–75V), trading flexibility for optimized switching frequency at elevated voltages. Efficiency curves show the IM4815S slightly outperforming the TMR variant above 36V input due to better core material utilization, while the latter excels at lower voltages. Cost-per-unit and lead times vary significantly by region, so procurement strategy influences selection alongside electrical characteristics.
Are there any known limitations regarding transient response during sudden load steps?
Yes. Under step changes exceeding 30mA on either rail, the IM4815S exhibits undershoot or overshoot lasting several milliseconds before settling within ±2%. This stems from limited dynamic response bandwidth of its voltage-mode control loop. Applications involving sensitive analog frontends may require post-regulation with LDOs to meet tighter tolerances. Alternatively, reducing load capacitance or pre-bias conditions can improve stability. Always validate transient behavior with actual loads mimicking end-use conditions rather than relying solely on datasheet graphs derived from resistive loads.
What role does the “Remote On/Off” feature play in system-level power management?
The remote enable pin allows centralized control of the IM4815S’s activation state, supporting sleep/wake cycles in energy-efficient devices. Since it’s active-low, interfacing with microcontroller GPIOs requires inversion logic or open-drain configuration. Proper implementation prevents brownout scenarios where partial startup causes undefined behavior. Additionally, disabling the unit reduces quiescent current to near zero, extending battery life in portable equipment—critical for meeting ENERGY STAR or similar standards. Ensure enable timing aligns with other subsystems to avoid race conditions during boot sequences.
How should the IM4815S be handled during ESD events according to IEC 61000-4-2?
Although the module itself isn’t rated for direct contact discharges, its internal diodes and layout provide some protection. Standard handling procedures include grounding wrist straps, using anti-static mats, and avoiding plastic tools near pins. During field service, ensure input/output lines aren’t left floating, as high-impedance nodes attract ESD energy easily. Post-deployment testing per IEC 61000-4-2 Level 2 (±4kV contact, ±8kV air) validates robustness, but adding TVS diodes at input/output ports offers added margin, particularly in harsh environments.
What documentation supports safety certification for the IM4815S?
The IM4815S complies with UL 62368-1 and CSA C22.2 No. 62368-1, supported by test reports available upon request. These cover dielectric strength (1.5 kV RMS, 1 minute), leakage current (<0.5 mA), and fire hazard assessments. Manufacturer-provided certificates of conformity and traceability data facilitate audit trails in regulated industries. Note that end-product integration must still undergo complete system evaluation—the module alone doesn’t confer full product safety approval. Always consult latest edition requirements, as standards evolve periodically.
How does input-to-output capacitance influence EMI performance in switch-mode applications?
The IM4815S has inherent parasitic capacitance across the isolation barrier (~10–20 pF), which couples high-frequency noise. While acceptable for most ITE applications, stringent EMI regulations may demand external mitigation. Techniques include minimizing PCB trace lengths between input capacitors and the module, using shielded cables, and ensuring return paths don’t create large current loops. Measurement results show dominant noise emissions occur at 1–2 MHz harmonics; adding RC snubbers or optimizing transformer winding geometry (if accessible) yields measurable improvements without altering the module itself.
Can the IM4815S replace older linear-isolated converters in new designs?
Yes, provided the efficiency and size constraints are acceptable. Older linear solutions waste significant power as heat, especially at wide input ranges, whereas the IM4815S’s 84% efficiency reduces thermal burden. However, linear isolators often offer superior output ripple and transient response due to inherent filtering—trade-offs must be evaluated. For many digital-heavy commercial products, switching benefits outweigh these drawbacks. Migration is straightforward if footprint and pinout align, though decoupling strategies differ slightly due to high-frequency switching artifacts.
What factors determine whether the IM4815S meets RoHS3 compliance in global markets?
RoHS3 compliance hinges on material composition, including exemptions for lead in soldering, mercury in switches, and cadmium in plating. The IM4815S meets all restricted substance thresholds (<1000 ppm for Pb, Cd, Hg, etc.), but supplier declarations must accompany procurement to confirm consistency across batches. Regional variations exist—e.g., China RoHS vs EU RoHS—so verifying labeling against local regulations prevents customs delays. End-of-life disposal protocols also benefit from documented compliance status, aiding corporate sustainability reporting.

Parts with Similar Specifications

The three parts on the right have similar specifications to XP Power IM4815S

Product Attribute IM4815SA IM4805SA IM4812S IM4812SA
Part Number IM4815SA IM4805SA IM4812S IM4812SA
Manufacturer XP Power XP Power XP Power XP Power
Efficiency - - - -
Type - - - -
Series - - - -
Voltage - Output 3 - - - -
Features - - - Simultaneous Sampling
Voltage - Input (Max) - - - -
Standard Number - - - -
Control Features - - - -
Applications - - - -
Current - Output (Max) - - - -
Voltage - Output 2 - - - -
Voltage - Output 1 - - - -
Size / Dimension - - - -
Voltage - Input (Min) - - - -
Power (Watts) - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Voltage - Isolation - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Base Product Number - DAC34H84 MAX500 ADS62P42
Mounting Type - Surface Mount Through Hole Surface Mount
Number of Outputs - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

IM4815S Datasheet PDF

Download IM4815S pdf datasheets and XP Power documentation for IM4815S - XP Power.

Datasheets
IM Series, 2 W Datasheet.pdf
Environmental Information
Declaration of Conformity IM Series.pdf RoHS Statement.pdf

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    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

  • Andr***PCBLab
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IM4815S Image

IM4815S

XP Power
98D-IM4815S

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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