TEXAS INSTRUMENTS PT4560 Technical data
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PT4560 Series
30-W 48-V Input
Isolated DC/DC Converter
Description
The PT4560 series is a single-output
isolated DC/DC converter, housed in a
19-pin space-saving package. These modules are UL, CSA, and VDE approved
for telecom applications, and rated at
30 watts or 8 A. Standard output voltages
range from 1.8 V to 15 V, each adjustable
by up to ±10% of nominal.
Operating features include a remote
on/off control, an under-voltage-lockout
(UVLO), and a differential remote sense.
The PT4560 series also incorporates
many protection features. These include
output current limit, short-circuit protection, and over-temperature shutdown.
PT4560 requires a 330µF of output
capacitance for proper operation.
Features
• Input Voltage Range:
36V to 75V
• 1500 VDC Isolation
• On/Off Control
Adjust
• V
o
• Differential Remote Sense
• Current Limit
• Short-Circuit Protection
• Over-Temperature Shutdown
Ordering Information
PT4561H = 3.3V/8A (26.4W)
PT4562H = 5.0V/6A
PT4563H = 12.0V/2.5A
PT4564H = 15.0V/2A
PT4565H = 2.0V/8A (16W)
PT4566H = 2.5V/8A (20W)
PT4567H = 1.8V/8A (14.4W)
PT4568H = 5.2V/6A
PT4571H = 9.0V/3.3A
PT Series Suffix
Case/Pin Order Package
Configuration Suffix Code *
Vertical N (END)
Horizontal A (ENA)
SMD C (ENC)
* Previously known as package styles 1400 &
1410.
(Reference the applicable package code drawing for the dimensions and PC board layout)
(PT1234x )
(Revised 3/14/2002)
• Undervoltage Lockout
• Space-Saving Package
• Solderable Copper Case
• UL1950 Recognized
• CSA 22.2 950 Certified
• EN60950 Approved
• VDE Licensed
• 4.9 x10
6
Hrs MTBF
• Meets FCC Class A
Radiated Limits
Pin-Out Information
Pin Function
1 Do Not Use
2 Remote On/Off †
3 Do Not Use
4-V
in
5-V
in
6-V
in
7+V
in
8+V
in
9+V
in
10 -V
o
11 -V
o
12 -V
o
13 -Remote Sense
14 +V
o
15 +V
o
16 +V
o
17 +V
o
18 Vo Adjust †
19 +Remote Sense
†For more information,
see application notes.
SLTS097C
Standard Application
For technical support and more information, see inside back cover or visit www.ti.com
VO Adjust
+V
IN
Inhibit
–V
IN
+REMOTE SENSE
19
18
+V
7, 8, 9 14-17
+
C
IN
R
1
C
1
Q
1
PT4560
4-6 10-1213
2
+
C
OUT
–REMOTE SENSE
O
L
O
A
D
–V
O
Cin= Optional 100µF/100V electrolytic
C
= Required 330µF electrolytic (See Notes)
out
Q1= N-Channel MOSFET
R1/C1= Optional (see application notes)
PT4560 Series
30-W 48-V Input
Isolated DC/DC Converter
Specifications (Unless otherwise stated, T
=25°C, Vin =48V, C
a
=330µF, and Io =Iomax)
out
PT4560 SERIES
Characteristic Symbol Conditions Min Typ Max Units
Output Current I
Input Voltage Range V
o
in
Over Vin range Vo = 15 V 0.1
Over Io Range 36.0 48.0 75.0 V
Set Point Voltage Tolerance Vo tol V
Temperature Variation Reg
Line Regulation Reg
Load Regulation Reg
Total Output Voltage Variation ∆V
temp
line
load
tot Includes set-point, line, load, V
o
–40° ≤Ta ≤ +85°C — ±0.5 — %V
Over Vin range V
Over I
range Vo ≥5.0V — ±0.4 ±1.0 %V
o
= 12 V 0.1
V
o
V
= 9.0V 0.1
o
=5.0V 0.25
V
o
V
≤ 3.3V 0.25
o
≥5.0V — ±1 ±1.5 %V
o
V
≤3.3V — ±33 ±50 mV
o
≥5.0V — ±0.2 ±1.0 %V
o
V
≤3.3V — ±7 ±33 mV
o
V
≤3.3V — ±13 ±33 mV
o
≥5.0V — ±2 — %V
o
(1)
(1)
(1)
(1)
(1)
— 2.0
— 2.5
— 3.3
— 6.0
— 8.0
–40° ≤Ta ≤ +85°C Vo ≤3.3V — ±67 — mV
Efficiency η V
Vo Ripple (pk-pk) V
Transient Response t
Short Circuit Current I
Switching Frequency ƒ
∆V
r
tr
tr
sc
s
Under-Voltage Lockout UVLO V
Remote On/Off Input (pin 2) Referenced to –Vin (pins 4–6)
Input High Voltage V
Input Low Voltage V
Input Low Current I
IH
IL
IL –3 –6 –10 µA
20MHz bandwidth V
0.1A/µs load step, 50% to 100% Iomax — 100 200 µs
Vo over/undershoot V
Over Vin range V
increasing — 34 —
in
Vin decreasing — 33 —
= 1 5V — 85 —
o
= 1 2V — 87 —
V
o
=9.0V — 84 —
V
o
=5.0V — 84 —
V
o
=3.3V — 80 —
V
o
Vo =1.8V — 69 —
≥ 5.0V — 1.0 2.0 %V
o
V
≤ 3.3V — 50 75 mV
o
≥ 5.0V — ±3.0 ±5.0 %V
o
V
≤ 3.3V — ±100 ±150 mV
o
— 2xIomax — A
≥10V 400 500 600
o
V
<10V 600 750 900
o
2.5 — 15
–0.2 — +0.8
(2)
Standby Input Current Iin standby pins 2 & 4 connected — 8 16 mA
Internal Input Capacitance C
External Output Capacitance C
Isolation Voltage Input-output/input-case 1500 — — Vdc
Capacitance Input-output — 1200 — pF
Resistance Input-output 10 — — MΩ
Operating Temperature Range T
Maximum Case Temperature T
Storage Temperature Range T
Reliability MTBF Per Bellcore TR-332
Mechanical Shock — Per Mil-Std-883D, method 2002.3,
Mechanical Vibration — Per Mil-Std-883D, method 2007.2,
in
out
a
c
s
Between +Vo and –V
o
V
≥ 9.0V 260 330 600
o
V
≤ 5.0V 260 330 1,000
o
Over Vin range -40
50% stress, Ta =40°C, ground benign
1mS, half-sine, mounted to a fixture
20-2000Hz, soldered in board
— 0.66 — µF
(3)
(3)
(4)
— +85
(5)
— — 100 °C
-40 — +125 °C
4.9 — — 10
— 500 — G’s
—20—G’s
Weight — — — 40 — grams
Flammability — Materials meet UL 94V-0
Notes: (1) The DC/DC converter will operate at no load with reduced specifications.
(2) The Remote On/Off input has an internal pull-up. If it is left open circuit the PT4560 will operate when input power is applied. A low-leakage
(<100nA) MOSFET is recommended to control this input. The open-circuit voltage is less than 10V. See application notes for interface considerations.
(3) Output capacitor values are absolute. Allowances must be made for any additional de-coupling capacitors and the total external capacitor tolerance.
The value of external capacitance is limited due to regulator startup current requirements. Consult the factory for further details.
(4) For operation below 0°C, the required external output capacitor must have temperature stable characteristics. E.g. Tantalum or Oscon® types.
(5) See Safe Operating Area curves or contact the factory for the appropriate thermal derating.
A
%
kHz
V
V
µF
°C
6
o
o
o
o
o
o
pp
o
Hrs
For technical support and more information, see inside back cover or visit www.ti.com
PT4560 Series
30-W 48-V Input
Isolated DC/DC Converter
T ypical Characteristics
PT4567, 1.8 VDC (See Note A)
Efficiency vs Output Current
80
75
70
65
60
Efficiency - %
55
50
02468
Ripple vs Output Current
20
16
12
8
Ripple - mV
4
0
02468
Iout (A)
Iout (A)
V
IN
36.0V
48.0V
60.0V
75.0V
V
IN
75.0V
60.0V
48.0V
36.0V
PT4561, 3.3 VDC (See Note A)
Efficiency vs Output Current
90
80
70
Efficiency - %
60
50
02468
Ripple vs Output Current
50
40
30
20
Ripple - mV
10
0
02468
Iout (A)
Iout (A)
V
IN
48.0V
36.0V
60.0V
75.0V
V
IN
75.0V
60.0V
48.0V
36.0V
PT4562, 5.0 VDC (See Note A)
Efficiency vs Output Current
90
80
70
60
Efficiency - %
50
40
0123456
Ripple vs Output Current
60
50
40
30
Ripple - mV
20
10
0
0123456
Iout (A)
Iout (A)
V
IN
48.0V
60.0V
36.0V
75.0V
V
IN
75.0V
60.0V
48.0V
36.0V
Power Dissipation vs Output Current
8
6
4
Pd - Watts
2
0
02468
Safe Operating Area, Vin =48V (See Note B)
90
80
70
60
50
40
30
Ambient Temperature (°C)
20
0.0 2.0 4.0 6.0 8.0
Note A: All data listed in the above graphs has been developed from actual products tested at 25°C. This data is considered typical data for the DC-DC Converter.
Note B: SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating temperature.
Iout (A)
Iout (A)
V
Airflow
200LFM
120LFM
60LFM
Nat Conv
IN
75.0V
60.0V
48.0V
36.0V
Power Dissipation vs Output Current
8
6
4
Pd - Watts
2
0
02468
Safe Operating Area, Vin =48V (See Note B)
90
80
70
60
50
40
30
Ambient Temperature (°C)
20
02468
Iout (A)
Iout (A)
Airflow
200LFM
120LFM
60LFM
Nat conv
V
IN
75.0V
60.0V
36.0V
48.0V
Power Dissipation vs Output Current
7
6
5
4
3
Pd - Watts
2
1
0
0123456
Safe Operating Area, Vin =48V (See Note B)
90
80
70
60
50
40
30
Ambient Temperature (°C)
20
0123456
Iout (A)
Iout (A)
Airflow
200LFM
120LFM
60LFM
Nat conv
V
IN
75.0V
36.0V
60.0V
48.0V
For technical support and more information, see inside back cover or visit www.ti.com
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