Additional Resources: Product Page date 09/21/2016 page 1 of 34 MODEL: NDM3Z-90 DESCRIPTION: AUTO COMPENSATED, DIGITAL DC-DC POL CONVERTER GENERAL CHARACTERISTICS FEATURES 7.5~14 V input range compact package 0.6~1.8 V programmable output vertical: high efficiency 50.8 x 9.51 x 19.05 mm voltage tracking (2.0 x 0.37 x 0.75 in) voltage margining horizontal: active current sharing 50.8 x 19.05 x 10.0 mm Snapshot parametric capture (2.0 x 0.75 x 0.39 in) voltage/current/temperature monitoring 90 A output synchronization and phase spreading adaptive algorithms remote differential voltage sense cycle-by-cycle charge management programmable soft start and soft stop dual phase architecture fault management SMBus interface PMBus compatible TM Architects of Modern Power input voltage output voltage output current output wattage MODEL max max (Vdc) (Vdc) (A) (W) NDM3Z-90 7.5~14 0.6~1.8 90 162 PART NUMBER KEY NDM3Z-90 X - X - XXX Base Number Module Orientation and Pin Style: Firmware Configuration: HT = horizontal, through hole mount 000~ZZZ HS = horizontal, surface mount Pin Configuration: V = vertical A = HT 3.56 mm pin length (HT) V 4 mm pin length (V) B = V 5.5 mm pin length (V) S = surface mount pins Example part number: NDM3Z-90V-A-002 vertical module * HS and HT modules are delivered on tape and reel 4.0 mm pin length firmware configuration 002 * V modules are delivered in trays CONTENTS Pin Descriptions................................................2 Mechanical Drawings.....................................14~15 Absolute Maximum Ratings.................................4 PMBus Interface.................................................17 Product Electrical Specifications...........................4 Operating Information.........................................20 cui.comAdditional Resources: Product Page CUI Inc MODEL: NDM3Z-90 DESCRIPTION: AUTO COMPENSATED, DIGITAL DC-DC POL CONVERTER date 09/21/2016 page 2 of 34 INTERNAL CIRCUIT DIAGRAM POWER CONNECTIONS symbol pin IO type description VIN 1A, 1B, 1C, 1D Power Input voltage GND 2A, 2B, 2C, 2D Ground Power ground VOUT 3A, 3B, 3C, 3D Power Output voltage N/C 11, 12 N/A No connect on module COMMUNICATION CONNECTIONS symbol pin IO type description +S 4A Analog Output voltage positive sense input, N/C if not used -S 4B Analog Output voltage negative sense input, N/C if not used VSET 5A Digital Output voltage pin-strap VTRK 5B Analog Voltage tracking input, N/C if not used SLRT 6A Digital SMBus alert, N/C if not used SDA 6B Digital SMBus data, pull-up resistor required even if not used SCL 7A Digital SMBus clock, pull-up resistor required even if not used Module fault indicator, N/C if module is stand-alone, FAULT 7B Digital tied together if modules are current share configured SA 8A Digital SMBus address pinstrap SYNC 8B Digital Synchronization I/O, N/C if not used PG 9A Digital Power good, pull-up resistor or configured as push-pull CTRL 9B Digital Remote control or enable, N/C if not used, internal pull-up resistor Digital-DC Communications bus, pull-up resistor or DDC 10A Digital configured as push-pull (stand-alone only) required PREF 10B Ground Pin-strap ground cui.com