15 AMP 鈥淐URRENT BOOSTER鈥?/div>
FOR PT7750 SERIES
The PT7747 is a new high-perfor-
mance 15 Amp 鈥淐urrent Booster鈥?for
the PT7750 Series housed in a 27-pin
SIP package. Multiple PT7747 boost-
ers will operate in parallel with the
PT7750 Series boosting output current
in increments of 15A . Combinations
of PT7750s and PT7747 current
boosters can easily supply enough
power for virtually any multiple
megaprocessor application.
Application Notes
Mechanical Outline
Product Selector Guide
A PT7747 current booster adds a parallel
output stage driven by the PT7750. As such,
the system runs in perfect sychronization
providing a low noise solution.
The PT7747 only operates in combina-
tion with the PT7750 series and is not a
stand-alone product. Therefore please refer
the PT7750 series data sheet for perfor-
mance specifications. The PT7747 also has
the same mechanical dimensions and pack-
age options as the PT7750 series.
Pin-Out Information
Pin Function
1
2
3
Do not connect
Do not connect
Do not connect
Do not connect
Do not connect
Do not connect
Ordering Information
Pin Function
14
15
16
17
18
19
20
21
22
23
24
25
26
27
GND
GND
GND
GND
GND
GND
V
out
V
out
V
out
V
out
V
out
V
out
Do not connect
Sync In
PT7747t
t
Features
15A Current Boost
Automatically Tracks Vout of PT7750
High Efficiency
Input Voltage Range:
20V to 28V
鈥?/div>
Synchronized with PT7750
鈥?/div>
27-pin SIP Package
鈥?/div>
Run up to 4 in Parallel - 60 Amps
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
4
5
6
7
8
9
10
11
12
13
PT Series Suffix
(PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
V
in
V
in
V
in
V
in
V
in
Do not connect
N
A
C
GND
(For dimensions and PC board layout,
see Package Styles 1000 and 1010.)
Standard Application
PROGRAMMING PINS
VID0
VID1
VID2
VID3
VID4
REMOTE SENSE (+)
6 4 3 2 1
26
V
IN
L1
7 - 11
1碌H
+
27
PT7750
13 - 19
5
12
20 - 25
V
OUT
C
IN
STBY*
GND
C
OUT
+
LOAD
GND
REMOTE SENSE (-)
27
L1
7 - 11
1碌H
+
PT7747
13 - 19
20 - 25
Cin = Required 560碌F electrolytic
C out = Required 2000碌F electrolytic
L1 = Optional 1碌H input choke
C
IN
C
OUT
+
Output Capacitors:
The PT7750/PT7747 series requires a minimum output capacitance of 2000碌F for proper operation. Do not use Oscon type capacitors. The maximum
allowable output capacitance is (42,000
4
Vout)碌F for the PT7751, (96,000
4
Vout)碌F for the PT7756, or 15,000碌F, whichever is less.
Input Filter:
An input inductor is optional for most applications. The input inductor must be sized to handle 9ADC with a typical value of 1碌H. The input capacitance
must be rated for a minimum of 8.0 Arms of ripple current when operated at maximum output current and maximum output voltage. Contact an applications engi-
neer for input capacitor selection for applications at other output voltages and output currents.
58
Power Trends, Inc.
27715 Diehl Road, Warrenville, IL 60555
(800) 531-5782
Fax: (630) 393-6902
http://www.powertrends.com
next
型號(hào)
版本
描述
廠商
下載
英文版
15 AMP HIGH-PERFORMANCE BIG HAMMER PROGRAMMABLE ISR
TI
英文版
15 AMP HIGH-PERFORMANCE BIG HAMMER PROGRAMMABLE ISR
TI [Texas ...
英文版
15 AMP HIGH-PERFORMANCE BIG HAMMER PROGRAMMABLE ISR
TI
英文版
15 AMP HIGH-PERFORMANCE BIG HAMMER PROGRAMMABLE ISR
TI [Texas ...
英文版
15 AMP HIGH-PERFORMANCE BIG HAMMER PROGRAMMABLE ISR
TI
英文版
15 AMP HIGH-PERFORMANCE BIG HAMMER PROGRAMMABLE ISR
TI [Texas ...
英文版
18 AMP “BIG-HAMMER” PROGRAMMABLE INTEGRATED SWITCHING REGU...
TI
英文版
18 AMP “BIG-HAMMER” PROGRAMMABLE INTEGRATED SWITCHING REGU...
TI [Texas ...
英文版
18 AMP “BIG-HAMMER” PROGRAMMABLE INTEGRATED SWITCHING REGU...
TI
英文版
18 AMP “BIG-HAMMER” PROGRAMMABLE INTEGRATED SWITCHING REGU...
TI [Texas ...
英文版
18 AMP “BIG-HAMMER” PROGRAMMABLE INTEGRATED SWITCHING REGU...
TI
英文版
18 AMP “BIG-HAMMER” PROGRAMMABLE INTEGRATED SWITCHING REGU...
TI [Texas ...
英文版
20 Amp Programmable Next Generation Big Hammer
TI
英文版
20 Amp Programmable Next Generation Big Hammer
TI [Texas ...
英文版
20 Amp Programmable Next Generation Big Hammer
TI
英文版
20 Amp Programmable Next Generation Big Hammer
TI [Texas ...
英文版
20-A Programmable Integrated Switching Regulator
TI [Texas ...
英文版
20 Amp 3.3V-Input Next Generation ＇Big Hammer＇ Programmabl...
ETC
英文版
20 Amp Programmable Next Generation ig hammer
英文版
20-A 1.8V to 2.55V 3.3V-Input Programmable ISR
ETC
1
2
