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www.murata-ps.com
OKY-T/10 & T/16-D12 Series
Programmable DOSA-SMT 10/16-Amp DC/DC Converters
Typical unit
FEATURES
Wide 8.3-14 VDC input range Non-isolated output adjustable from 0.7525 to
5.5 Volts up to 16 Amps DOSA-compatible SMT package Optional sequence/tracking operation Outstanding thermal performance and derating Short circuit protection On/Off control High efficiency up to 94.5% Over temperature protection Meets UL/EN/IEC 60950-1 safety approvals.
PRODUCT OVERVIEW
The OKY-T/10 and -T/16 series are miniature SMT non-isolated Point-of-Load (POL) DC/DC power converters for embedded applications. The module is fully compatible with Distributed-power Open Standards Alliance (DOSA) industry-standard specifications (www.dosapower.com). Applications include powering CPU’s, datacom/telecom systems, programmable logic and mixed voltage systems.
The wide input range is 8.3 to 14 Volts DC. Two maximum output currents are offered, 10 Amps (T/10 models) or 16 Amps (T/16 models). Based on fixed-frequency synchronous buck converter switching topology, the high power conversion
efficient Point of Load (POL) module features programmable output voltage and On/Off control. An optional Sequence/Tracking input allows controlled ramp-up and ramp-down outputs. The Sense input provides remote sense. These converters also include under voltage lock out (UVLO), output short circuit protection, over-current and over temperature protections.
These units are designed to meet all standard UL/EN/IEC 60950-1 safety and FCC EMI/RFI emissions certifications and RoHS-6 hazardous substance compliance.
Contents Description, Connection Diagram, Photograph Ordering Guide, Model Numbering Mechanical Specifications, Input/Output Pinout Detailed Electrical Specifications Output Voltage Adjustment, Soldering Guidelines Application Notes Performance Data – OKY2-T/10-D12 Performance Data and Oscillograms – OKY2-T/16-D12 Tape and Reel Information Product Label, MTBF Table
Page 1 2 3 4 5 6 9 11 16 17
+Vin
F1 On/Off Control
Controller
External DC Power Source
Open = On Closed = Off
(Positive On/Off)
Common
Sequence/Tracking (OKY2 only)
Simplified Block Diagram
t4XJUDIJOH t'JMUFST t$VSSFOU4FOTF
Reference and Error Amplifier
+Vout Sense
Trim
Figure 1. OKY-T/10, -T/16
Common
Note: Murata Power Solutions strongly recommends an external input fuse, F1. See specifications.
For full details go to www.murata-ps.com/rohs
www.murata-ps.com/support
MDC_OKY_T10T16.D12.A08 Page 1 of 17
OKY-T/10 & T/16-D12 Series
Programmable DOSA-SMT 10/16-Amp DC/DC Converters
Performance Specifications Summary and Ordering Guide
ORDERING GUIDE
Output
Input
Model Number ➂
VOUT (Volts)
IOUT R/N (mVp-p) Regulation (Max.) VIN
IIN, IIN, Efficiency
(Amps Power
Nom. Range no load full load
max) (Watts) Max. Line Load (Volts) (Volts) (mA) (Amps) Min. Typ.
OKY-T/10-D12P-C 0.7525-5.5 10 50
40 ±0.15% ±0.25% 12 8.3-14 80 4.41 93% 94.5% Pos. No
OKY-T/10-D12N-C 0.7525-5.5 10 50
40 ±0.15% ±0.25% 12 8.3-14 80 4.41 93% 94.5% Neg. No
On/Off Polarity Sequence/ Track
Package, C83
Case ➀
1.3x0.53x0.33 (33x13.5x8.4)
1.3x0.53x0.33 (33x13.5x8.4)
Pinout P66
P66
OKY2-T/10-D12P-C 0.7525-5.5 10 50
40
±0.15% ±0.25% 12 8.3-14 80
4.41
93% 94.5% Pos. Yes
1.3x0.53x0.33 (33x13.5x8.4)
P66
OKY2-T/10-D12N-C 0.7525-5.5 10 50
40
±0.15% ±0.25% 12 8.3-14 80
4.41
93% 94.5% Neg. Yes
1.3x0.53x0.33 (33x13.5x8.4)
P66
OKY-T/16-D12P-C 0.7525-5.5 16 80 OKY-T/16-D12N-C 0.7525-5.5 16 80 OKY2-T/16-D12P-C 0.7525-5.5 16 80 OKY2-T/16-D12N-C 0.7525-5.5 16 80
40
±0.22% ±0.25% 12 8.3-14 80
7.09 92.5% 94% Pos.
No
1.3x0.53x0.33 (33x13.5x8.4)
P66
40
±0.22% ±0.25% 12 8.3-14 80
7.09 92.5% 94% Neg. No
1.3x0.53x0.33 (33x13.5x8.4)
P66
40
±0.22% ±0.25% 12 8.3-14 80
7.09 92.5% 94% Pos. Yes
1.3x0.53x0.33 (33x13.5x8.4)
P66
40
±0.22% ±0.25% 12 8.3-14 80
7.09 92.5% 94% Neg. Yes
1.3x0.53x0.33 (33x13.5x8.4)
P66
➀ Dimensions are in inches (mm). ➁ The input voltage range must be 13.2 Volts max. for Vout >= 3.63 V. ➂ All specifications are at nominal line voltage, Vout=nominal (5V for D12 models) and full load, +25 deg.C.
unless otherwise noted.
Output capacitors are 1 μF ceramic and 10 μF electrolytic in parallel. Input cap is 22 μF. See detailed specifications.
I/O caps are necessary for our test equipment and may not be needed for your application.
Use adequate ground plane and copper thickness adjacent to the converter. Ripple and Noise (R/N) is shown at Vout=1V. See specs for details.
PART NUMBER STRUCTURE
OK Y 2 - T / 16 - D12 P - C
Okami Non-isolated PoL Surface Mount
RoHS Hazardous Substance Compliance
C = RoHS-6 (does not claim EU RoHS exemption 7b–lead in solder)
Sequence/tracking Blank=Not installed, delete seq/track contact 2=Installed, add seq/track contact
On/Off Polarity P = Positive Polarity N = Negative Polarity
Trimmable Output Voltage Range
D12 Models = 0.7525-5.5V
Input Voltage Range D12 = 8.3-14V
Maximum Rated Output Current.