cui.com

date 11/07/2014

│ page 3 of 14

CUI Inc

│ MODEL: NDM2Z-12H │ DESCRIPTION: AUTO COMPENSATED, DIGITAL DC-DC POL CONVERTER

POWER / EFFICIENCY

parameter

conditions/description

min

typ

max

units

output power

V

0

66

W

efficiency

I

V

V

V

V

85.3

89.8

92.7

94.2

%

I

V

V

V

V

81.1

86.6

90.9

93.3

%

idle power

V

V

V

V

CTRL deasserted

0.45

0.58

0.94

1.78

0.13

W

switching frequency

320

kHz

FAULT PROTECTION

parameter

conditions/description

min

typ

max

units

output over voltage protection

(OVP) adjustable via PMBus commands

5.6

V

output over current protection

(OCP) adjustable via PMBus commands

TBD

A

input under voltage protection

adjustable via PMBus commands

4.5

V

input over voltage protection

adjustable via PMBus commands

14

V

over temperature protection

(OTP) measured on the module

125

°C

thermal protection hysteresis

difference between temperature fault and warning

15

°C

POWER CONNECTIONS

symbol

pin

IO type

description

VIN

1A

Power

Input voltage

GND

2A

Ground

Power ground

VOUT

3A

Power

Output voltage

COMMUNICATION CONNECTIONS

symbol

pin

IO type

description

VTRK/PG

4A

Analog/Digital

Voltage tracking input or power good output

PREF

4B

Ground

Pin-strap ground

+S

5A

Analog

Output voltage positive sense input

-S

5B

Analog

Output voltage negative sense input

SA0

6A

Digital

SMBus address pinstrap

DDC

6B

Digital

Digital-DC Communications bus (equivalent to Ericsson Power GCB)

SCL

7A

Digital

SBMBus clock

SDA

7B

Digital

SMBus data

VSET

8A

Digital

Output voltage pin-strap

SYNC

8B

Digital

Synchronization I/O

SALRT

9A

Digital

SMBus alert

CTRL

9B

Digital

Remote control or enable pin

For more information, please visit the product page.