Document
NMH SERIES
Isolated 2W Dual Output
features
p Full 2 Watt Output Power p Pin Compatible with NMA p 1kVDC Isolation p Dual Outputs p SIP & DIP package Styles p Efficiency to 80% p Power Density 1.42W/cm3 p 5V, 12V, 24V & 48V Input p 5V, 9V, 12V, and 15V Output p Footprint from 1.46 cm2 p UL 94V-0 Package Material p No Heatsink Required p Internal SMD Construction p Toroidal Magnetics p Fully Encapsulated p No External Components Required p MTTF up to 1.8 Million hours p PCB Mounting p Custom Solutions Available
pin connections
14 Pin DIP (top view)
VIN 14
1 GND
–V +V 0V 11 9 8
7 NC
7 Pin SIP
description
The NMH Series of DC-DC Converters offer the smallest footprint of any dual-output 2 Watt DC-DC Converter. Pin compatibility with the NMA series ensures minimal effort in upgrading distributed power systems. The devices are suited to any application where a dual rail supply is required in a minimum of pcb space.
12
456
VIN GND –V 0V +V
DC-DC Converters 1
NMH SERIES
Isolated 2W Dual Output
absolute maximum ratings over operating free air* temperature range
Input voltage VIN NMH05 types . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V Input voltage VIN NMH12 types . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Input voltage VIN NMH24 types . . . . . . . . . . . . . . . . . . . . . . . . . . 28V Input voltage VIN NMH48 types . . . . . . . . . . . . . . . . . . . . . . . . . . 54V Output power total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2W Short-circuit duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1s Isolation voltage (flash tested for 1 second) . . . . . . . . . . . . . . . . . 1000VDC Operating free air temperature range . . . . . . . . . . . . . . . . . . . 0°C to 70°C1 Storage temperature range . . . . . . . . . . . . . . . . . . . . . . --55°C to 150°C Lead temperature 1.5mm from case for 10 seconds . . . . . . . . . . . . . . . 300°C
electrical specifications
(measured at TA=25°C, at nominal input voltage)
Input voltage range NMH05 types . . . . . . . . . . . . . . . . . . . . . . 5V 10% Input voltage range NMH12 types . . . . . . . . . . . . . . . . . . . . . 12V 10% Input voltage range NMH24 types . . . . . . . . . . . . . . . . . . . . . 24V 10% Input voltage range NMH48 types . . . . . . . . . . . . . . . . . . . . . 48V 10% Load voltage regulation (10% to 100% full load)
5V output types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15% max. 9V, 12V and 15V output types . . . . . . . . . . . . . . . . . . . . . . 10% max. Line voltage regulation (10% to 100% full load) . . . . . . . . . . . . . 1.2%/1% of VIN Output voltage accuracy . . . . . . . . . . . . . . . . . See tolerance envelope graph Input reflected ripple (20MHz Band limited) . . . . . . . . . . . . . . 100mV p-p max. Output ripple (20MHz Band limited) . . . . . . . . . . . . . . . . . 150mV p-p max. Insulation resistance at 500VDC . . . . . . . . . . . . . . . . . . . . 1000M min. Efficiency at full load, 5V output type . . . . . . . . . . . . . . . . . . . . . 65% min. Efficiency at full load, 9V, 12V and 15V output type . . . . . . . . . . . . . . 70% min.
Temperature drift (VOUT) . . . . . . . . . . . . . . . . . . . . . . 0.01% per °C max. Temperature rise above ambient at full load . . . . . . . . . . . . . . . . 25°C max. Weight (typical) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.35 grams Switching frequency at full load (typical) . . . . . . . . . . . . . . . . . . . . . 75kHz No load power consumption (typical) . . . . . . . . . . . . . . . . . . . . . 180mW
* Free air -- requires a minimum of 10mm air space around the component. 1 See derating curve.
2
NMH SERIES
Isolated 2W Dual Output
selection guide 5V, 12V, 24V and 48V input types
Part Number
NMHXX05D NMHXX09D NMHXX12D NMHXX15D NMHXX05S NMHXX09S NMHXX12S NMHXX15S
Output Voltage (V) 5 9 12 15 5 9 12 15
Output Current Each Output (mA)
200 111 83 67 200 111 83 67
Package Style 1
2
typical isolation capacitance (pF)
Part Number
NMH05XXX NMH12XXX NMH24XXX NMH48XXX
05 29 43 42 40
Output Voltage (V) 09 12 37 41 57 73 64 81 60 79
Note : All data taken at TA=25°C.
15 44 81 98 94
DC-DC Converters 3
NMH SERIES
Isolated 2W Dual Output
typical characteristics NMH05, 12, 24 and 48 series
tolerance envelope
temperature derating graph
temperature test (under full load)
See application notes on page 2- 132
Note : All data taken at TA=25°C.
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NMH SERIES
Isolated 2W Dual Output
typical characteristics NMH05 series spectrum analysis (RBW=100kHz)
NMH12 series spectrum analysis (RBW=100kHz)
Note : All data taken at TA=25°C.
DC-DC Converters 5
NMH SERIES
Isolated 2W Dual Output
mean time to failure (MTTF) in thousands of hours
Part Number NMH0505 NMH0509 NMH0512 NMH0515 NMH1205 NMH1209 NMH1212 NMH1215 NMH2405 NMH2409 NMH2412 NMH2415 NMH4805 NMH4809 NMH4812 NMH4815
--25°C 1874 771 391 215 564 394 263 170 1080 569 319 185 236 197 155 115
25°C 1568 660 337 186 4.