參數(shù)資料
型號(hào)： PT7706A
英文描述： Dimming Ballast Control, Brown-out Protection, Programmable Preheat Time, 1.8us Deadtime in a 16-lead SOIC Narrow package; Similar to IR21592S with Lead Free Packaging
中文描述： 模擬IC
文件頁數(shù)： 1/5頁
文件大小： 202K
代理商： PT7706A
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
Standard Application
For STBY* pin;
open = output enabled
ground = output disabled.
Pin-Out Information
Pin Function
1
VID0
2
VID1
3
VID2
4
VID3
5
STBY* - Stand-by
6
VID4
7
V
in
8
V
in
9
V
in
Pin Function
10
V
in
11
V
in
12
Remote Sense Gnd
13
GND
14
GND
15
GND
16
GND
17
GND
PT7705—5V
The PT7705 is a series of high-
performance, 18 Amp Integrated
Switching Regulators (ISRs) housed in
a 27-pin SIP package. The 18A capa-
bility allows easy integration of the
latest high-speed, low-voltage μPs and
bus drivers into existing 5V systems.
The PT7705 series has been de-
signed to work in parallel with one or
more of the PT7749 - 18A current
boosters for increased I
out
in incre-
ments of 18A.
The output voltage of the PT7705
can be easily programmed from 1.3V
to 3.5V with a 5 bit input compatible
with Intel’s Pentium
II Processor.
A differential remote sense is also
provided which automatically com-
pensates for any voltage drop from the
ISR to the load.
1200μF of output capacitance are
required for proper operation.
Cin= Required 1200μF electrolytic
Cout= Required 1200μF electrolytic
= Optional 1μH input choke
PT7705
7 - 11
13 - 19
20 - 25
27
V
IN
GND
1μH
GND
V
OUT
C
OUT
+
C
IN
+
12
26
1
L1
SYNC OUT
LOAD
REMOTE SENSE (+)
REMOTE SENSE (-)
VID1
PROGRAMMING PINS
VID0
2
3
4
STBY*
5
6
18 Amp “Big-Hammer” Programmable
Integrated Switching Regulator
Pin Function
18
GND
19
GND
20
V
out
21
V
out
22
V
out
23
V
out
24
V
out
25
V
out
26
Remote Sense V
out
27
Sync Out
SLTS045A
(Revised 6/30/2000)
Specifications
Characteristics
(T
a
= 25°C unless noted)
Output Current
PT7705 SERIES
Typ
—
—
—
Symbols
I
o
Conditions
T
a
= +60°C, 200 LFM, pkg N
T
a
= +25°C, natural convection
0.1A
≤
I
o
≤
15A
V
= +5V, I
= 15A
0°C
≤
T
a
≤
+65°C
4.5V
≤
V
in
≤
5.5V, I
o
= 15A
V
in
= +5V, 0.1
≤
I
o
≤
15A
V
in
= +5V, I
o
= 15A
I
o
step between 7.5A and 15A
V
o
over/undershoot
V
in
= +5V, I
o
= 10A
Min
0.1
(1)
0.1
(1)
4.5
(3)
Max
18
(2)
15
(2)
5.5
Units
A
Input Voltage Range
Output Voltage Tolerance
V
in
V
o
V
V
o
-0.03
—
V
o
+0.03
V
Line Regulation
Load Regulation
V
o
Ripple/Noise
Transient Response
with C
out
= 1200μF
Efficiency
Reg
line
Reg
load
V
n
t
tr
V
os
η
—
—
—
—
—
—
—
—
—
—
±10
±10
50
100
200
89
87
85
79
77
—
—
—
—
—
—
—
—
—
—
mV
mV
mV
μSec
mV
V
o
= 3.3V
V
o
= 2.9V
V
o
= 2.5V
V
o
= 1.8V
V
o
= 1.5V
%
Switching Frequency
o
4.5V
≤
V
in
≤
5.5V
0.1A
≤
I
o
≤
15A
Over V
in
Range
650
700
750
kHz
Absolute Maximum
Operating Temperature Range
Storage Temperature
Mechanical Shock
T
a
0
—
+85
(4)
°C
T
s
—
Per Mil-STD-883D, Method 2002.3
1 msec, Half Sine, mounted to a fixture
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, Soldered in a PC board
Vertical/Horizontal
-40
—
+125
°C
—
500
—
G’s
Mechanical Vibration
—
10
—
G’s
Weight
—
—
31/41
—
grams
Notes:
(1) ISR will operate down to no load with reduced specifications. Please note that this product is not short-circuit protected.
(2) The PT7705 series can be easily paralleled with one or more of the PT7749 Current Boosters to provide increased output current in increments of 18A.
(3) The minimum input voltage is 4.5V or Vout+1.2V, whichever is greater.
(4) See SOA curves or consult the factory for the appripriate derating.
Output Capacitors:
The PT7705 series requires a minimum ouput capacitance of 1200μF for proper operation. Do not use Oscon type capacitors. The maximum
allowable output capacitance is 15,000μF. See Capacitor Application Note.
Input Filter:
An input filter is optional for most applications. The input inductor must be sized to handle 15ADC with a typical value of 1μH. The input capacitance must
be rated for a minimum of 1.3Arms of ripple current. For transient or dynamic load applications, additional capacitance may be required.
相關(guān)PDF資料
PDF描述
PT7706C Dimming Ballast Control, Brown-out Protection, Programmable Preheat Time, 1.8us Deadtime in a 16-lead SOIC Narrow package; Similar to IR21592STR with Lead Free Packaging.
PT7706N Self-Oscillating Half Bridge Driver, 1.1us Deadtime in a 8-pin DIP package; Similar to IRS2153DPBF with standard packaging and deadtime rating of 0.6 microseconds
PT7707A Analog IC
PT7707C One Cycle Control PFC IC designed to operate in continuous conduction mode (CCM), designed and qualified for the Consumer market; One Cycle Control PFC IC designed to operate in continuous conduction mode (CCM) with Tape and Reel packaging
PT7707N One Cycle Control PFC IC designed to operate in continuous conduction mode (CCM), designed and qualified for the Industrial market.; One Cycle Control PFC IC designed to operate in continuous conduction mode (CCM) in Tape and Reel Packaging.
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PT7706C 功能描述:REGU 15A 1.3-2.05V 4BIT SMD RoHS:否 類別:電源 - 板載 >> DC DC Converters 系列:PT7700 標(biāo)準(zhǔn)包裝:10 系列:PT4570 類型:隔離 輸出數(shù):1 電壓 - 輸入（最?。?36V 電壓 - 輸入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 電流 - 輸出（最大）:3.3A 電源（瓦） - 制造商系列:30W 電壓 - 隔離:1.5kV（1500V） 特點(diǎn):- 安裝類型:表面貼裝 封裝/外殼:19-SIP SMD 模塊 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包裝:托盤 工作溫度:-40°C ~ 85°C 效率:84% 電源（瓦特）- 最大:30W
PT7706N 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 PROGRAMMABLE ISR RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
PT7707 制造商:TI 制造商全稱:Texas Instruments 功能描述:18 AMP “BIG-HAMMER” PROGRAMMABLE INTEGRATED SWITCHING REGULATOR
PT7707A 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 PROGRAMMABLE ISR RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
PT7707C 功能描述:DC/DC轉(zhuǎn)換器 PROGRAMMABLE ISR RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸:
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