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28 Watts

Bidirectional DC/DC Converter Single Output 4/26/2018 Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797 website: www.wallindustries.com • e-mail: sales@wallindustries.com Page 1 of 5

FEATURES

  • Bidirectional DC/DC Converter
  • High Efficiency
  • Constant Voltage and Constant Current Mode
  • Continuous Short Circuit Protection
  • 3KVDC Isolation
  • RoHS Compliant
  • EN62368-1 Safety Approval APPLICATIONS DESCRIPTION
  • Process Control
  • Electric Power Instrumentation
  • Super Cap. Application
  • Energy Storage Systems
  • Electric Vehicles
  • Battery Management Systems The DCCE24S22428-1000 model of bidirectional DC/DC converters offers 28 watts of output power in a very compact through hole package. This is a single output model with constant voltage and constant current mode and an input voltage of 15-36VDC. It features high efficiency, 3KVDC isolation, and short circuit protection. The DCCE24S2428- 1000 model is also RoHS compliant. Please note that this is a preliminary publication. Contact factory for ordering information. Size: 2in x 1in x 0.47in (50.8mm x 25.4mm x 12mm) MODEL SELECTION TABLE Model Number Direction Input Voltage Range CV Output Voltage CC Output Current Ripple & Noise Efficiency Output Power DCCE24S2428-1000 Forward 28VDC (15-36VDC) 24VDC 1000mA 200mVp-p 86% 28W Reverse 24VDC (15-36VDC) 28VDC 1000mA SPECIFICATIONS All specifications are based on 25°C after warm-up time, Nominal Input Voltage, and Full Load unless otherwise noted. We reserve the right to change specifications based on technological advances. SPECIFICATION TEST CONDITIONS Min Typ Max Unit INPUT SPECIFICATIONS Input Voltage Range Forward Nominal VIN=28VDC 15 36 VDC Reverse Nominal VIN=24VDC Start-Up Voltage Forward/Reverse 9 VDC No Load Input Voltage Forward 50 mA Reverse 70 Input Surge Voltage 0.1s Max. 50 VDC Disable Static Current EN pin to open 2 5 mA Input Filter Pi Type Under Voltage Lockout Forward/Reverse 8 VDC OUTPUT SPECIFICATIONS Output Voltage Range Forward 3 22.8 VDC Reverse 3 26.6 Voltage Accuracy (at CV mode) Forward Io=900mA ±5 % Reverse Io=900mA Current Accuracy (at CC mode) Forward Vo=22.8VDC ±10 % Reverse Vo=26.6VDC Voltage Load Regulation (at CV mode) Forward Io=0-900mA ±3 % Reverse Io=0-900mA Current Load Regulation (at CC mode) Forward Vo=3-22.8VDC ±5 % Reverse Vo=3-26.6VDC Voltage Line Regulation (LL-HL at CV mode) Forward Io=900mA ±2 % Reverse Io=900mA Current Line Regulation (LL-HL at CC mode) Forward Vo=22.8VDC ±2 % Reverse Vo=226.6VDC Output Current Range (at CV mode) Forward 0 900 mA Reverse 0 900 Minimum Load 0 % Operating Frequency 100% Load at all input range 400 KHz Ripple & Noise(1) 200 mVp-p Transient Response Recovery Time Start-Up Time Nominal Vin 100 150 mS Temperature Coefficient 0.05 %/ºC

Bidirectional DC/DC Converter Single Output 4/26/2018 Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797 website: www.wallindustries.com • e-mail: sales@wallindustries.com Page 2 of 5 SPECIFICATIONS All specifications are based on 25°C after warm-up time, Nominal Input Voltage, and Full Load unless otherwise noted. We reserve the right to change specifications based on technological advances. SPECIFICATION TEST CONDITIONS Min Typ Max Unit PROTECTION Short Circuit Protection Continuous, Automatic Recovery ENVIRONMENTAL SPECIFICATIONS Operating Temperature Natural Convection with Derating -40 85 ºC Storage Temperature -45 105 ºC Max. Case Temperature 100% Load at Nominal Vin 105 ºC Relative Humidity 5 95 %RH Vibration MIL-STD-202G MTBF TBD Hours GENERAL SPECIFICATIONS Efficiency Tested by nominal input and max. full load @25ºC See Table Isolation Voltage 1 minute, input to output 3 KVDC Isolation Resistance 500VDC 1000 MΩ Isolation Capacitance 500 pF PHYSICAL SPECIFICATIONS Weight 0.88oz (25g) Dimensions (L x W x H) 2in x 1in x 0.47in (50.8mm x 25.4mm x 12mm) Case Material Plastic Case Potting Material Epoxy Cooling Method Free Air Convection SAFETY CHARACTERISTICS Safety Approvals EN62368-1 NOTES 1. 20MHz BW at vin range CV-mode, 0~90% load 9 (contact MLCC 1µF). *Due to advances in technology, specifications subject to change without notice. DERATING CURVES

Bidirectional DC/DC Converter Single Output 4/26/2018 Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797 website: www.wallindustries.com • e-mail: sales@wallindustries.com Page 3 of 5 MECHANICAL DRAWINGS Pin Function 1 CD 2 EN

3 GND

Unit: mm

1 Type= 18pcs

Length: 520±2mm

Bidirectional DC/DC Converter Single Output 4/26/2018 Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797 website: www.wallindustries.com • e-mail: sales@wallindustries.com Page 4 of 5 CONTROL CHARACTERISTICS EN Pin CD Pin Working State Open Open None Work Open Gnd None Work Gnd Open Forward Gnd Gnd Reverse The control function requires a minimum operating voltage 3VDC at +Vin to GND RIPPLE & NOISE MEASURE METHOD

Bidirectional DC/DC Converter Single Output 4/26/2018 Wall Industries, Inc. • 37 Industrial Drive, Exeter, NH 03833 • Tel: 603-778-2300 • Toll Free: 888-597-9255 • Fax 603-778-9797 website: www.wallindustries.com • e-mail: sales@wallindustries.com Page 5 of 5 COMPANY INFORMATION Wall Industries, Inc. has created custom and modified units for over 50 years. Our in-house research and development engineers will provide a solution that exceeds your performance requirements on- time and on budget. Our ISO9001-2008 certification is just one example of our commitment to producing a high quality, well-documented product for our customers. Our past projects demonstrate our commitment to you, our customer. Wall Industries, Inc. has a reputation for working closely with its customers to ensure each solution meets or exceeds form, fit and function requirements. We will continue to provide ongoing support for your project above and beyond the design and production phases. Give us a call today to discuss your future projects. Contact Wall Industries for further information: Phone: (603)778-2300 Toll Free: (888)597-9255 E-mail: sales@wallindustries.com Web: www.wallindustries.com Address: 37 Industrial Drive Exeter, NH 03833