![](http://datasheet.mmic.net.cn/120000/PT3344C_datasheet_3409871/PT3344C_1.png)
For technical support and more information, see inside back cover or visit www.ti.com
PT3340 Series
30-W 24/48-V Input
Isolated DC/DC Converter
Standard Application
Cin
= Optional 100F/100V electrolytic
Cout = Required 330F electrolytic (See Notes)
Q
1
= N-Channel MOSFET
R
1/C1 = Optional (see application notes)
PT3340
2
19
7, 8, 9
14-17
4-6
10-12
13
L
O
A
D
C
IN
+
V
O Adjust
+V
IN
Inhibit
+REMOTE SENSE
–REMOTE SENSE
+V
O
–V
O
–V
IN
Q
1
C
OUT
+
18
R
1
C
1
Features
Input Voltage Range:
18V to 60V
1500 VDC Isolation
On/Off Control
Vo Adjust
Differential Remote Sense
Current Limit
Short-Circuit Protection
Over-Temperature Shutdown
Description
The PT3340 series is a single-output
isolated DC/DC converter, housed in a
19-pin aluminum SIP package. These
modules are UL, CSA, and VDE ap-
proved for telecom applications, and
rated at 30W or 8A. The 18V to 60V
input range allows easy integration into
many distributed power applications which
utilize 24V bus architectures.
Standard output voltages range from
1.8V to 15V, and are each adjustable by
up to ±10%. Operating features include
a Remote On/Off control, an under-voltage
lockout (UVLO), and a differential re-
mote sense. Protection features include
an output current limit, short-circuit
protection, and over-temperature shut-
down.
A 330F output capacitor is required
for proper operation.
Ordering Information
PT3341
H = 3.3V/8A (26.4W)
PT3342
H = 5.0V/6A
PT3343
H = 12.0V/2.5A
PT3344
H = 15.0V/2A
Pin-Out Information
Pin Function
1
Do Not Use
2
Remote On/Off
3
Do Not Use
4-Vin
5-Vin
6-Vin
7+Vin
8+Vin
9+Vin
10
-Vo
11
-Vo
12
-Vo
13
-Remote Sense
14
+Vo
15
+Vo
16
+Vo
17
+Vo
18
Vo Adjust
19
+Remote Sense
For more information,
see application notes.
SLTS019B
(Revised 4/9/2002)
Undervoltage Lockout
Flexible SIP Package
UL1950 Recognized
CSA 22.2 950 Certified
EN60950 Approved
VDE Licensed
5 x106 Hrs MTBF
Meets FCC Class A
Radiated Limits
PT Series Suffix (PT1234 x )
Case/Pin
Order
Package
Configuration
Suffix
Code *
Vertical
N
(EHG)
Horizontal
A
(EHH)
SMD
C
(EHJ)
* Previously known as package styles 840 &
850.
(Reference the applicable package code draw-
ing for the dimensions and PC board layout)