SLTS021A Datasheet, PDF (1/3 Pages) Texas Instruments – 15 Watt Isolated DC-DC Converter

PT4100—48V
15 Watt Isolated DC-DC Converter
SLTS021A
(Revised 1/16/2001)
• 15W Output Power ⁽¹⁾
• Input Voltage Range:
36V to 75V
• 1500 VDC Isolation
• Low-Profile
• Current Limit
• Short-Circuit Protection
• Over-Temperature Shutdown
• UL1950 recognized
• CSA 22.2 950 certified
• Meets EN60950
The PT4100—48V series of dc/dc
converters provide up 18 Watts/in³ of
isolated power in a single low-profile
module. Designed to operate from a
standard 48V telecom bus, these modules
employ switching frequencies of up to
850kHz, planar magnetics, and surface-
mount construction. They are designed
for Telecom, Industrial, Computer, Medical,
and other distributed power applications
that require input-to-output isolation.
Specifications
Characteristics
(Ta=25°C unless noted)
Output Current
Symbols
Io
On/Off Standby Current
Short Circuit Current
I_{in standby}
I_sc
Inrush Current
Iir
tir
Input Voltage Range
Vin
Output Voltage Tolerance ∆Vo
Line Regulation
Load Regulation
V_o Ripple/Noise
Regline
Regload
V_n
Transient Response
t_tr
Efficiency
η
Switching Frequency
ƒ_o
Recommended Operating T_a
Temperature Range
Thermal Resistance
θ_ja
Case Temperature
T_c
Storage Temperature
T_s
Mechanical Shock
—
Mechanical Vibration
—
Weight
Isolation
Capacitance
Resistance
Flammability
Remote On/Off
—
—
—
—
—
On (3)
Off
Conditions
Over Vin range
Vo = 3.3V
Vo = 5V
Vo = 12V
Vo = 15V
Vin = 48V, Pin 1 = -Vin
Vin = 48V
Vo ≤ 5.2V
Vo = 12V
Vo = 15V
Vin = 48V @ max Io
On start-up
Io = 0.1 to max Io
Over Vin Range
T_A= -40°C to +85°C
Over Vin range @ max Io
10% to 100% of Io max
V_in=48V, I_o=4.0A,
Vin=48V, Io=3.0A,
Vin=48V, Io=1.25A,
Vin=48V, Io=1.0A,
V_o=3.3V
Vo=5V
Vo=12V
Vo=15V
50% load change
Vo over/undershoot
Vin=48V, Io=4.0A,
Vin=48V, Io=3.0A,
Vin=48V, Io=1.25A,
Vin=48V, Io=1A,
Vo = 3.3V
Vo = 5V
Vo=12V
Vo=15V
Over Vin and Io, Vo≤5.2V
Vo=12V/15V
Vin = 48V @ max Io
Free air convection, (40-60LFM)
PT4110 with 200 LFM airflow
Free Air Convection, (40-60LFM)
@ Thermal shutdown
—
Per Mil-STD-202F, Method 213B,
6mS, Half-sine, mounted to a PCB
Per Mil-STD-202F, Method 204D,
10-500Hz, Soldered in a PCB
—
—
—
—
Materials meet UL 94V-0
Referenced to –Vin
PT4100—48V SERIES
Min
Typ
Max
0
—
4.0 ⁽¹⁾
0
—
3.0
0
—
1.25
0
—
1.0
—
7
10
—
5.5
—
—
3.5
—
—
2.0
—
—
0.6
1.0
—
1.0
5.0
36.0 48.0 75.0
—
±1.0 ±2.0
—
±0.2 ±1.0
—
±0.4 ±1.0
—
70
90
—
75
100
—
120
150
—
100
200
—
100
200
—
3.0
5.0
—
75
—
—
80
—
—
81
—
—
82
—
800
850
900
600
650
700
-40
—
0
—
—
14
—
—
-40
—
+85 ⁽²⁾
+70 ⁽¹⁾
—
100
110
—
50
—
—
10
—
—
28
—
1500 —
—
—
1100 —
10
—
—
2.5
7.0
0
0.8
Units
A
mA
A
A
mSec
V
%Vo
%Vo
%Vo
mVpp
µSec
%Vo
%
kHz
°C
°C/W
°C
°C
G’s
G’s
grams
V
pF
MΩ
V
Notes: (1) The PT4110 is limited to 13.2W output over the temperature range of 0–70°C with 200LFM airflow.
(2) See thermal derating curves
(3) If pin 2 is left open, the converter will operate when input power is applied
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
Standard Application
On/Off
+Vin
-Vin
1
3
5
PT4100
2
4
+Vout
-Vout
Pin-Out Information
Pin Function
1
Remote
ON/OFF
2
-Vin
3
+Vin
4
-Vout
5
+Vout
6
Do not connect
Ordering Information
Through-Hole
PT4101A = 5 Volts
PT4102A = 12 Volts
PT4103A = 15 Volts
(1) _{PT4110A = 3.3 Volts}
PT4117A = 5.2 Volts
Surface Mount
PT4101C = 5 Volts
PT4102C = 12 Volts
PT4103C = 15 Volts
(1) PT4110C = 3.3 Volts
PT4117C = 5.2 Volts
(For dimensions and PC
board layout, see Package
Style 710.)