15 Amp 24V Input 鈥淏ig Hammer III鈥?/div>
Programmable ISR
SLTS053A
(Revised 6/30/2000)
The PT7750 series is a +24V in-
put, 15 Amp output, high-
performance Integrated Switching
Regulator (ISR) housed in a 27-pin
SIP package. The 15A capability
allows easy integration of the latest
high-speed, low-voltage 碌Ps and bus
drivers into +24V distributed power
systems.
The PT7750 series has been de-
signed to work in parallel with one or
more of the PT7747 current boosters
for increased Iout in increments of 15A.
The output voltage of the PT7750
series can be easily programmed over
a wide range with a 5-bit input. A
differential remote sense is provided
which automatically compensates for
any voltage drop from the ISR to the
load.
2000碌F of output capacitance is
required for proper operation.
Pin-Out Information
Pin Function
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
Remote Sense Vout
Features
鈥?/div>
+24V bus input
鈥?/div>
High Efficiency
鈥?/div>
Differential Remote
Sense
鈥?/div>
27-pin SIP Package
鈥?/div>
Parallelable with
PT7747 15A current boosters
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
SYNC OUT
GND
STBY*
C
OUT
+
LOAD
GND
REMOTE SENSE (-)
C in = Required 560碌F electrolytic
(See input filter note)
Cout = Required 2000碌F electrolytic
L1 = Optional 1碌H input choke
1
2
3
4
5
6
7
8
9
10
11
12
13
VID0
VID1
VID2
VID3
STBY* - Stand-by
VID4
V
in
V
in
V
in
V
in
V
in
Remote Sense Gnd
GND
For STBY* pin:
open = output enabled
ground = output disabled.
Sync Out
Specifications
Characteristics
(T
a
= 25擄C unless noted)
Output Current
Input Voltage Range
Undervoltage Lockout Threshold
Output Voltage T
olerance
Line Regulation
Load Regulation
V
o
Ripple/Noise
Transient Response
with C
out
= 2000碌F
Efficiency
PT7750 SERIES
Symbols
I
o
V
in
V
uvl
鈭哣
o
Reg
line
Reg
load
V
n
t
tr
V
os
Conditions
T
a
=
+60擄C, 200 LFM
T
a
=
+25擄C, natural convection
0.1A
鈮?/div>
I
o
鈮?/div>
I
o
max
0.1A
鈮?/div>
I
o
鈮?/div>
I
o
max
V
in
= +24V, I
o
= 15A PT7751
0擄C
鈮?/div>
T
a
鈮?/div>
+55擄C
PT7756
20V
鈮?/div>
V
in
鈮?/div>
28V, I
o
= I
o
max (w/remote sense)
V
in
= +24V, 0.1
鈮?/div>
I
o
鈮?/div>
I
o
max (w/remote sense)
V
in
= +24V, I
o
= I
o
max
I
o
step between 7.5A and 15A
V
o
over/undershoot
V
in
= +24V, I
o
= 10A
20V
鈮?/div>
V
in
鈮?/div>
28V
0.1A
鈮?/div>
I
o
鈮?/div>
15A
鈥?/div>
鈥?/div>
Vertical/Horizontal
V
o
= 5.0V
V
o
= 3.3V
V
o
= 2.5V
Min
0.1
0.1
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
300
0
-40
鈥?/div>
(1)
(1)
Typ
鈥?/div>
鈥?/div>
鈥?/div>
18.7
鈥?/div>
鈥?/div>
鹵15
鹵10
75
100
200
88
84
80
350
鈥?/div>
鈥?/div>
53/66
Max
15
(2)
15
(2)
28.0
鈥?/div>
鹵80
鹵160
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
400
+85
(3)
+125
鈥?/div>
Units
A
V
V
mV
mV
mV
mV
碌Sec
mV
%
kHz
擄C
擄C
grams
20.0
畏
Switching Frequency
Absolute Maximum
Operating T
emperature Range
Storage T
emperature
Weight
茠
o
Ta
T
s
鈥?/div>
Notes
(1) ISR-will operate down to no load with reduced specifications. Please note that this product is not short-circuit protected.
(2) The PT7750 series can be easily paralleled with one or more of the PT7747 Current Boosters to provide increased output current in increments of 15A
(3) See safe operating area curves or contact the factory to determine the appropriate derating.
Output Capacitors:
The PT7750 series requires a minimum output capacitance of 2000碌F for proper operation. Do not use Oscon type capacitors. The maximum allow-
able output capacitance is (42,000
梅
Vout)碌F for the PT7751, (96,000
梅錚?/div>
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
engineer for input capacitor selection for applications at other output voltages and output currents.
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
next
標(biāo)準(zhǔn)包裝 6
類別 電源 - 板載
家庭 DC DC Converters
系列 PT7750
類型 非隔離（POL）
輸出數(shù) 1
電壓 - 輸入（最?。?/label>20V
電壓 - 輸入（最大） 28V
Voltage - Output 1 2.5 ~ 5.6 V
Voltage - Output 2 -
Voltage - Output 3 -
電流 - 輸出（最大） 15A
電源（瓦） - 制造商系列 84W
電壓 - 隔離 -
特點(diǎn) -
安裝類型 通孔，直角
封裝/外殼 27-SIP 模塊
尺寸/尺寸 -
包裝 托盤
工作溫度 0°C ~ 85°C
效率 88%
電源（瓦特）- 最大 84W
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
3
4
5
6
