FEATURES
1
/
3
•
OUTPUT CURRENT UP TO 16A
•
SMALL SIZE AND LOW PROFILE :
1.30”
X
0.53”
X
0.30” (SMD) ; 2.00”
X
0.50”
X
0.28” (SIP)
•
HIGH EFFICIENCY - 92% @ 3.3V FULL LOAD
•
INPUT RANGE FROM 8.3VDC TO 14.0VDC
•
FIXED SWITCHING FREQUENCY (300KHZ)
•
SMD & SIP PACKAGES
•
OUTPUT VOLTAGE PROGRAMMABLE FROM 0.75VDC TO 5.0VDC
VIA EXTERNAL RESISTOR
•
INPUT UNDER-VOLTAGE LOCKOUT
•
UL60950-1, EN60950-1 AND IEC60950-1 LICENSED
•
ISO9001 CERTIFIED MANUFACTURING FACILITIES
•
COMPLIANT TO RoHS EU DIRECTIVE 2002/95/EC
APPLICATIONS
Wireless Network
Telecom/Datacom
Industry Control System
Distributed Power Architectures
Semiconductor Equipment
Microprocessor Power Applications
OPTIONS
Positive Logic Remote on/off
DESCRIPTION
DOS16-12T (SMD type), DOH16-12T (for Vertical Mounting SIP type) and
DOH16-12TA (for Horizontal Mounting SIP type) are non-isolated DC/DC
converters that can deliver up to 16A of output current with full load efficiency of
92% at 3.3V output.
T E C H N I C A L S P E C I F I C AT I O N
OUTPUT SPECIFICATIONS
Output current
Voltage accuracy
Minimum load
Line regulation
Load regulation
Vin=Vin(min.) to Vin(max.)
at Full Load
No Load
to Full Load
Full load and Vin(nom.)
All specifications are typical at nominal input, full load and 25ºC otherwise noted
INPUT SPECIFICATIONS
16A max.
± 2%Vo(set)
0%
± 0.3%Vo(set),typ.
± 0.4%Vo(set),typ.
30mVrms,max.
75mVp-p,max.
±0.4%,
typ.
Input voltage range
Maximum input current
Input filter (Note 5)
Input no load current
(Vin=12V, Io=0, module enabled)
Input under voltage lockout
Input reflected ripple current
Vo(set) =0.75Vdc
Vo(set) =5.0Vdc
Start-up voltage
Shutdown voltage
Vo(set)
≦3.63V
Vin(nom.) =12V
Vo(set) >3.63V
Vin=8.3 to 14.0Vdc; Io=Io(max.)
8.3 – 14VDC
8.3 – 13.2VDC
10A
C filter
40mA,typ.
100mA,typ.
7.9V,typ.
7.8V,typ.
30mAp-p
Ripple and noise (Note2) 20MHz bandwidth
Temperature coefficient
ΔIo
/Δt = 2.5A/μS ,Vin(nom.)
Dynamic load
Load change step
response
(50% to 100% or
(Note 2)
100% to 50% of Io(max.))
ΔIo
/Δt = 2.5A/μS ,Vin(nom.)
Dynamic load
Load change step
response
(50% to 100% or
(Note 3)
100% to 50% of Io(max.))
Output current limit
Output short-circuit current
5~20MHz, 1μH source impedance
Peak deviation 200mV,typ.
Setting time
(Vo<10%peak
25μS,typ.
deviation)
Peak deviation 100mV,typ.
Setting time
(Vo<10%peak
50μS,typ.
deviation)
180%
ENVIRONMENTAL SPECIFICATIONS
Operating ambient temperature
Storage temperature range
Thermal shock
Over temperature protection
–40ºC ~ +85ºC(with derating)
–55ºC ~ +125ºC
MIL-STD-810F
125ºC,typ
FEATURE SPECIFICATIONS
Remote ON/OFF(Note 6)
Negative logic(standard)
ON = 0V < Vr < 0.3V
OFF
=
2.5V < Vr < Vin(max)
Positive logic(option)
ON = (Vin-4) < Vr < Vin(max)
OFF=0V < Vr < 0.3V
Input current of Remote control pin
Remote off state input current Nominal Vin
Remote sense range
I
IN
=10μA,max
I
IN
=1mA,max
I
IN
=10μA,max
I
IN
=1mA,max
10μA~1.0mA
2.0mA,typ
0.5V,max.
6ms,max.
3ms,typ.
3ms,typ.
Hiccup, automatics recovery
ESR≧1mΩ
1000μF,max.
External load capacitance
5000μF,max.
ESR≧10mΩ
Vin=Vin(min.) to Vin(max)
Output voltage overshoot-startup
1%Vo(set)
F.L.
Voltage adjustability (see fig.1)
(Note 4)
0.7525V ~ 5.0V
GENERAL SPECIFICATIONS
Efficiency
Isolation voltage
Switching frequency
Approvals and standard
SMD
Dimensions
Weight
MTBF (Note 1)
BELLCORE TR-NWT-000332
MIL-HDBK-217F
SIP
See table
None
300KHz, typ.
IEC60950-1, UL60950-1, EN60950-1
1.30 X 0.53 X 0.30 Inch
(33.0 X 13.5 X 7.7 mm)
2.00 X 0.50 X 0.28 Inch
(50.8 X 12.7 X 7.2 mm)
6.0g(0.22oz)
7
1.409 x 10 hrs
5
6.704 x 10 hrs
Rise time
Time for Vo to rise from 10% to 90%of Vo(set)
Case 1 (Note 7)
Case 2 (Note 8)
Turn-on delay time
2
Model Name
DOS16-12T
DOS16-12T-P
DOH16-12T
DOH16-12T-P
DOH16-12TA
DOH16-12TA-P
/
3
ON/OFF
Logic
Negative
Positive
Negative
Positive
Negative
Positive
Package
SMD
Vertical Mounting
SIP
Horizontal Mounting
SIP
Input Voltage
Vo(set)≦3.63V
Vin = 8.3-14Vdc
Output Voltage
Output Current
Min. Load
Max. Load
Efficiency (%)
12Vin, 3.3Vdc@16A
0.75 ~ 5.0Vdc
Vo(set)＞3.63V
Vin = 8.3-13.2Vdc
0A
16A
92%
Note
1. BELLCORE TR-NWT-000332. Case 1: 50% Stress, Temperature at 40ºC.
MIL-HDBK-217F Notice2 @Ta=25 ºC, Full load(Ground, Benign, controlled environment).
2. External with C
out
= 1μF ceramic//10μF tantalum capacitors.
3. External with C
out
= 2×150μF polymer capacitors.
4. Output voltage programmable from 0.7525V to 5V by connecting a single resistor (shown as Rtrim in Table 1) between the TRIM and GND pins of the
module.To calculate the value of the resistor
Rtrim
for a particular output voltage
Vo,
use the following equation:
Rtrim
=
5.
[
10500
Vo
– 0.7525
-1000
]
Ω
It’s necessary to equip the external input capacitors at the input of the module. The capacitors should connect as close as possible to the input
terminals that ensuring module stability. The external C
in
is 6×47μF ceramic capacitors at least.
6. Device code with suffix “-P” – Positive logic(On/Off is open collector/drain logic input; Signal referenced to GND )
Device code with no suffix – Negative logic (On/Off pin is open collector/drain logic input with external pull –up resistor; signal referenced to GND)
7. Case 1 :On/Off input is set to logic low (module on) and then input power is applied (delay from instant at which Vin=Vin(min) until Vo=10% of Vo(set))
8. Case 2 :Input power is applied for at least one second and then the On/Off input is set to logic low (delay form instant at which Von/off=0.3V until
Vo=10% of Vo(set))
CAUTION:
This power module is not internally fused. An input line fuse must always be used.
DOS16-12T, Vo=3.3V, Derating Curve
18
OUTPUT CURRENT,Io(A)
16
14
12
10
8
6
4
2
0
20
30
40
50
60
70
80
90
AMBIENT TEMPERATURE,TA(
℃
)
Fig. 1
Table 1
Vo(set) (V)
0.7525
1.2
1.5
1.8
2.5
3.3
5
Rtrim (KΩ)
Open
22.46
13.05
9.024
5.009
3.122
1.472
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