鈥?/div>
23-pin SIP Package
Application Notes
Mechanical Outline
Product Selector Guide
Revised 11/12/98
The PT6900 is a new series of plus to
minus high- performance, 12 watt voltage
converters housed in a 23-pin SIP package.
The PT6900 is designed to supply
regulated negative voltages for power-
ing the latest ECL (-5.2V) and
GaAs (-2.0V) ICs used in high-speed
fiber optic communications. A 330碌F
electrolytic capacitor is required on the
input and output for proper operation.
Pin-Out Information
Pin Function
1
Do not connect
Ordering Information
Pin
13
14
15
16
17
18
19
20
21
22
23
Function
GND
GND
GND
V
out
V
out
V
out
V
out
V
out
V
out
Remote Sense V
out
Do not connect
PT6901t
= -2.0 Volts
t
PT6902t
= -5.2 Volts
t
Standard Application
V
ADJ
Remote Sense
2
3-7
22
16-21
2
3
4
5
-V
OUT
+
Cout
V
out
Adjust
V
in
V
in
V
in
V
in
V
in
Remote Sense GND
PT Series Suffix
(PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
+V
IN
+
Cin
PT6900
9-15
8
6
7
8
9
10
11
12
N
A
C
GND
Remote Sense
GND
GND
GND
GND
GND
(For dimensions and PC board layout,
see Package Styles 1100 and 1110.)
C in = Required 330碌F electrolytic
C out = Required 330碌F electrolytic
Note:
Case must be connected to
ground pins for proper operation
Specifications
Characteristics
(T
a
= 25擄C unless noted)
Output Current
PT6900 SERIES
Symbols
I
o
Conditions
T
a
=
+60擄C, 200 LFM, pkg N
V
o
= -2.0V
V
o
= -5.2V
Min
0.1
0.1
*
0.1
*
0.1
*
4.75
V
o
-0.05
鈥?/div>
鈥?/div>
V
o
= -2.0V
V
o
= -5.2V
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
500
0
0
-40
鈥?/div>
*
Typ
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鹵0.5
鹵0.5
40
100
100
100
200
70
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
28/33
Max
6
2.5
6
2.5
5.5
V
o
+0.05
鹵1.0
鹵1.0
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
+85
+60
+125
鈥?/div>
Units
A
A
A
A
V
V
%
%
mV
mV
碌Sec
mV
mV
%
kHz
擄C
擄C
擄C
grams
T
a
=
+25擄C, natural convection V
o
= -2.0V
V
o
= -5.2V
Input Voltage Range
Output Voltage Tolerance
Line Regulation
Load Regulation
V
o
Ripple/Noise
Transient Response
with C
out
= 330碌F
Efficiency
Switching Frequency
Absolute Maximum
Operating Temperature Range
Recommended Operating
Temperature Range
Storage Temperature
Weight
V
in
鈭哣
o
Reg
line
Reg
load
V
n
t
tr
V
os
畏
茠
o
T
a
T
a
T
s
鈥?/div>
0.1A
鈮?/div>
I
o
鈮?/div>
I
max
V
in
= +5V, I
o
= I
max
0擄C
鈮?/div>
T
a
鈮?/div>
+60擄C
4.75V
鈮?/div>
V
in
鈮?/div>
5.5V, I
o
= I
max
V
in
= +5V, 0.1
鈮?/div>
I
o
鈮?/div>
I
max
V
in
= +5V, I
o
= I
max
I
o
step between 0.5xI
max
and I
max
V
o
over/undershoot
V
o
= -2.0V
V
o
= -5.2V
V
in
= +5V, I
o
= 0.5xI
max,
4.75V
鈮?/div>
V
in
鈮?/div>
5.5V
0.1A
鈮?/div>
I
o
鈮?/div>
I
max
鈥?/div>
Forced airflow = 200 LFM
Over V
in and
I
o
Ranges
鈥?/div>
Vertical/Horizontal
V
o
= -2.0V
* ISR-will operate down to no load with reduced specifications. Please note that this product is not short-circuit protected.
28
Power Trends, Inc.
27715 Diehl Road, Warrenville, IL 60555
(800) 531-5782
Fax: (630) 393-6902
http://www.powertrends.com
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