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PDF PDT012A0X Data sheet ( Hoja de datos )
| Número de pieza | PDT012A0X | |
| Descripción | 12A Digital Pico DLynxTM: Non-Isolated DC-DC Power Modules | |
| Fabricantes | Lineage Power | |
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Preliminary Data Sheet
February 1, 2011
12A Digital Pico DLynxTM: Non-Isolated DC-DC Power Modules
3Vdc –14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A Output Current
Features
Compliant to RoHS EU Directive 2002/95/EC (Z
versions)
Compatible in a Pb-free or SnPb reflow
environment (Z versions)
DOSA based
Wide Input voltage range (3Vdc-14.4Vdc)
RoHS Compliant
Output voltage programmable from 0.6Vdc to
5.5Vdc via external resistor
Digital interface through the PMBusTM # protocol
Tunable LoopTM to op timize dynamic output
voltage response
Applications
Distributed power architectures
Intermediate bus voltage applications
Telecommunications equipment
Flexible output voltage sequencing EZ-
SEQUENCE
Power Good signal
Fixed switching frequency with capability of
external synchronization
Servers and storage applications
Output overcurrent protection (non-latching)
Networking equipment
Overtemperature protection
Industrial equipment
Vin+
Cin
GND
Q1
VIN
PGOOD
VOUT
VS+
MODULE
SEQ
CLK
DATA
TRIM
SMBALRT#
ADDR0
ADDR1
ON/OFF
SIG_GND
GND VS-
RTUNE
CTUNE
RTrim
RADDR1 RADDR0
Vout+
Co
Remote On/Off
Ability to sink and source current
Cost efficient open frame design
Small size: 12.2 mm x 12.2 mm x 8.5 mm
(0.48 in x 0.48 in x 0.335 in)
Wide operating temperature range [-40°C to
85°C]
UL* 60950-1Recognized, CSA† C22.2 No.
60950-1-03 Certified, and VDE‡ 0805:2001-12
(EN60950-1) Licensed
ISO** 9001 and ISO 14001 certified
manufacturing facilities
Description
The 12A Digital Pico DLynxTM power modules are non-isolated dc-dc converters that can deliver up to 12A of output
www.DataSheet4Ucu.croremnt. These modules operate over a wide range of input voltage (VIN = 3Vdc-14.4Vdc) and provide a precisely
regulated output voltage from 0.6Vdc to 5.5Vdc, programmable via an external resistor. Features include a digital
interface using the PMBus protocol, remote On/Off, adjustable output voltage, over current and overtemperature
protection. The PMBus interface supports a range of commands to both control and monitor the module. The
module also includes the Tunable LoopTM feature that allows the user to optimize the dynamic response of the
converter to match the load with reduced amount of output capacitance leading to savings on cost and PWB area.
* UL is a registered trademark of Underwriters Laboratories, Inc.
† CSA is a registered trademark of Canadian Standards Association.
‡ VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
** ISO is a registered trademark of the International Organization of Standards
Document No: DS10-009 ver. 0.27
1 page  
Preliminary Data Sheet
February 1, 2011
12A Digital Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current
Feature Specifications (cont.)
Parameter
Turn-On Delay and Rise Times
(VIN=VIN, nom, IO=IO, max , VO to within ±1% of steady state)
Case 1: On/Off input is enabled and then input power is
applied (delay from instant at which VIN = VIN, min until Vo =
10% of Vo, set)
Case 2: Input power is applied for at least one second and
then the On/Off input is enabled (delay from instant at
which Von/Off is enabled until Vo = 10% of Vo, set)
Output voltage Rise time (time for Vo to rise from
10% of Vo, set to 90% of Vo, set)
Output voltage overshoot (TA = 25oC
VIN= VIN, min to VIN, max,IO = IO, min to IO, max)
With or without maximum external capacitance
Over Temperature Protection
(See Thermal Considerations section)
PMBus Over Temperature Warning Threshold
Tracking Accuracy
(Power-Up: 2V/ms)
(Power-Down: 2V/ms)
(VIN, min to VIN, max; IO, min to IO, max VSEQ < Vo)
Input Undervoltage Lockout
Turn-on Threshold
Turn-off Threshold
Hysteresis
PMBus Adjustable Input Under Voltage Lockout Thresholds
Resolution of Adjustable Input Under Voltage Threshold
PGOOD (Power Good)
Signal Interface Open Drain, Vsupply ≤ 5VDC
Overvoltage threshold for PGOOD ON
Overvoltage threshold for PGOOD OFF
Undervoltage threshold for PGOOD ON
Undervoltage threshold for PGOOD OFF
Pulldown resistance of PGOOD pin
Device Symbol Min Typ Max Units
All
Tdelay
― 1.1
― msec
All
Tdelay
― 700 ―
μsec
All
Trise
― 3.1 ― msec
All Tref
All TWARN
All VSEQ –Vo
All VSEQ –Vo
3.0 % VO, set
145
130
100
100
°C
°C
mV
mV
All
2.475
3.025
Vdc
All 2.25 2.75 Vdc
All 0.25
Vdc
All 2.5 14 Vdc
All 500 mV
108
%VO, set
105
%VO, set
110
%VO, set
90 %VO, set
All 50 Ω
www.DataSheet4U.com
LINEAGE POWER
5
5 Page 
Preliminary Data Sheet
February 1, 2011
12A Digital Pico DLynxTM: Non-isolated DC-DC Power Modules
3 – 14.4Vdc input; 0.6Vdc to 5.5Vdc output; 12A output current
Characteristic Curves
The following figures provide typical characteristics for the 12A Digital Pico DLynxTM at 3.3Vo and 25oC.
100
95
90
85
Vin =4.5V
Vin=14V Vin=12V
80
75
70
0 2 4 6 8 10 12
OUTPUT CURRENT, IO (A)
Figure 25. Converter Efficiency versus Output Current.
12
10
NC
8
6
4
2
0
0.5m/s
(100LFM)
Standard
Part (85°C)
Ruggedized (D)
Part (105°C)
1m/s
(200LFM)
1.5m/s
(300LFM)
2m/s
(400LFM)
55 65 75 85 95 105
AMBIENT TEMPERATURE, TA OC
Figure 26. Derating Output Current versus Ambient
Temperature and Airflow.
TIME, t (1μs/div)
Figure 27. Typical output ripple and noise (CO=22μF
ceramic, VIN = 12V, Io = Io,max, ).
TIME, t (20μs /div)
Figure 28 Transient Response to Dynamic Load
Change from 50% to 100% at 12Vin, Cout=
1x47uF+1x330uF,CTune=2700pF & RTune=330ohms
www.DataSheet4U.com
TIME, t (2ms/div)
Figure 29. Typical Start-up Using On/Off Voltage (Io =
Io,max).
TIME, t (2ms/div)
Figure 30. Typical Start-up Using Input Voltage (VIN =
12V, Io = Io,max).
LINEAGE POWER
11
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