OKX
T/10 & T/16-D12 Series
Adjustable DOSA 10/16-Amp SIP DC/DC Converters
Performance and Functional Specifications
See Note 1
Input
Short Circuit Duration
Prebias Startup
Input Voltage Range
Start-Up Voltage
Undervoltage Shutdown (see Note 15)
Overvoltage Shutdown
Reflected (Back) Ripple Current (Note 2)
Internal Input Filter Type
Recommended External Fuse
Reverse Polarity Protection
Input Current:
Full Load Conditions
Inrush Transient
Shutdown Mode (Off, UV, OT)
Output in Short Circuit
No Load
Low Line (Vin=Vmin, Vout=Vnom)
Remote On/Off Control (Note 5)
Negative Logic (“N” model suffix)
Positive Logic (“P” model suffix)
Current
Tracking/Sequencing (OKX “2” models)
Slew Rate
Tracking accuracy, rising input
Tracking accuracy, falling input
See Ordering Guide and Note 7.
7.75V
7.50V
None
25 mA pk-pk
Capacitive
15A
N/A. See fuse information
See Ordering Guide
0.4 A
2
Sec.
5 mA
100 mA
80 mA
10.2 A. (OKX-T/16-D12),
6.34A (OKX-T/10-D12)
ON = Ground pin to +0.3V. max.
OFF =+2.5V min. to + Vin (max)
ON = Open pin to +Vin max.
OFF = Ground pin to +0.3V. max.
1 mA max.
2 Volts per millisecond, max.
Vout = +/-100 mV of Sequence In
Vout = +/-200 mV of Sequence In
Continuous, no damage
(output shorted to ground)
Converter will start up if the external
output voltage is less than Vset
Dynamic Load Response
75 μSec max. to within ±2% of final value
(50-100% load step, di/dt=2.5A/μSec)
Environmental
Operating Temperature Range (Ambient)
See derating curves
-40 to +85 deg. C. with derating (Note 9)
Operating PC Board Temperature
-40 to +100 deg. Celsius max.,
no derating (12)
Storage Temperature Range
-55 to +125 deg. C.
Thermal Protection/Shutdown
+130 deg. Celsius
Relative Humidity
to 85%RH/+85 deg. C., non-condensing
Physical
Outline Dimensions
Weight
Electromagnetic Interference
Restriction of Hazardous Substances
See Mechanical Specifications
0.2 ounces (5.6 grams)
Designed to meet FCC part 15, class B,
EN55022 and CISPR22 class B conducted
and radiated (may need external filter)
RoHS6
(does
not claim EU RoHS
exemption 7b–lead in solder)
Absolute Maximum Ratings
Input Voltage (Continuous or transient)
On/Off Control
Input Reverse Polarity Protection
Output Current (Note 7)
General and Safety
Efficiency
Switching Frequency
See Ordering Guide
300 KHz ± 25 kHz
Start-Up Time (Vin on to Vout regulated) 8 mSec for Vout=nominal
(On/Off to Vout regulated)
8 mSec for Vout=nominal
Isolation
Not isolated
Designed to meet UL/cUL 60950-1,
CSA-C22.2 No. 60950-1, IEC/EN 60950-1
Calculated MTBF per Telcordia SR-232 (4a) 6.54 mHRS (OKX2-T/16-D12P)
Calculated MTBF per MIL-HDBK-217F (4b) 5.3 mHRS (OKX2-T/16-D12P)
Output
Storage Temperature
Lead Temperature
0 V.to +15 Volts max. (D12 models)
0 V. min. to +Vin max.
See Fuse section
Current-limited. Devices can withstand a
sustained short circuit without damage.
The outputs are not intended to accept
appreciable reverse current.
-55 to +125 deg. C.
See soldering specifications
Safety
Absolute maximums are stress ratings. Exposure of devices to greater than any of any
of these conditions may adversely affect long-term reliability. Proper operation under
conditions other than those listed in the Performance/Functional Specifications Table is
not implied nor recommended.
Specification Notes:
(1)
Specifications are typical at +25 deg.C, Vin=nominal (+12V. for D12 models), Vout=nominal (+5V for D12
models), full load, external caps and natural convection unless otherwise indicated. Extended tests at higher
power must supply substantial forced airflow.
All models are tested and specified with external 1 μF paralleled with 10 μF ceramic/tantalum output
capacitors and a 22 μF external input capacitor. All capacitors are low ESR types. These capacitors are
necessary to accommodate our test equipment and may not be required to achieve specified performance
in your applications. However, Murata Power Solutions recommends installation of these capacitors. All
models are stable and regulate within spec under no-load conditions.
(2)
(3)
Input Back Ripple Current is tested and specified over a 5 Hz to 20 MHz bandwidth. Input filtering is
Cin=2 x 100 μF tantalum, Cbus=1000 μF electrolytic, Lbus=1 μH.
Note that Maximum Power Derating curves indicate an average current at nominal input voltage. At higher
temperatures and/or lower airflow, the DC/DC converter will tolerate brief full current outputs if the total
RMS current over time does not exceed the Derating curve.
Output Voltage Range
Minimum Loading
Accuracy (50% load, untrimmed)
Voltage Output Range (Note 13)
Overvoltage Protection (Note 16)
Temperature Coefficient
Ripple/Noise (20 MHz bandwidth)
Line/Load Regulation
Maximum Capacitive Loading (Note 14)
Cap-ESR=0.001 to 0.01 Ohms
Cap-ESR >0.01 Ohms
Current Limit Inception (Note 6)
(98% of Vout setting, after warm up)
Short Circuit Mode
Short Circuit Current Output
Protection Method
See Ordering Guide
No minimum load
±2 % of Vnominal
See Ordering Guide
None
±0.02% per oC of Vout range
See Ordering Guide and note 8
See Ordering Guide and note 10
1,000 μF
5,000 μF
30 Amps (OKX2-T/16-D12)
25 Amps (OKX2-T/10-D12)
2A
Hiccup autorecovery upon overload
removal. (Note 7)
(4a) Mean Time Before Failure is calculated using the Telcordia (Belcore) SR-332 Method 1, Case 3, ISSUE 2,
ground fixed controlled conditions, Tambient=+25 deg.C, full output load, natural air convection.
(4b) Mean Time Before Failure is calculated using MIL-HDBK-217F, GB ground benign, Tambient=+25 deg.C, full
output load, natural air convection.
(5)
The On/Off Control Input should use either a switch or an open collector/open drain transistor referenced to
-Input Common. A logic gate may also be used by applying appropriate external voltages which not exceed
+Vin.
Short circuit shutdown begins when the output voltage degrades approximately 2% from the selected
setting.
(6)
www.murata-ps.com
Technical enquiries
email: sales@murata-ps.com, tel:
+1 508 339 3000
MDC_MDC_OKX2_T10T16.A03
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