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參數(shù)資料
| 型號： | PT7714 |
| 英文描述： | 200V Half Bridge Driver LED Buck Regulator in a 8-Pin SOIC Package; A IRS2540 packaged in a Lead-Free 8-Lead SOIC shipped on Tape and Reel |
| 中文描述： | 0.8V至1.575V 20A條3.3V的輸入可編程ISR的 |
| 文件頁數(shù)： | 5/8頁 |
| 文件大?。?/td> | 157K |
| 代理商： | PT7714 |
For technical support and more information, see inside back cover or visit www.ti.com
Application Notes
Increasing the Output of the PT7710 Family of
ISRs with a 20-A Compatible Current Booster
The output of PT7710 family of regulators (PT7711–
PT7716) can produce an additional 20-A output using a
compatible current booster module. Two booster modules
are available. They are the PT7744 and PT7745, which
are compatible with regulators that operate off 3.3-V
or 5-V input buses respectively. Refer to Table 2-1 for
regulator/booster compatiblity.
The booster modules are controlled directly by the regu-
lator and effectively add a parallel output stage. They
operate sychronously, to provide a low-noise solution.
Up to two booster modules can be connected to a PT771x
regulator. Each booster added increases the regulator’s
output current by 20A, for up to 60A of output current.
Current boosters are not stand-alone products, and can
only operate with a regulator. They are housed in the same
package as the regulator, and share the same mechanical
outline. Except for an increase in output current, the
overall performance of a regulator/booster combination
is identical to that of a stand-alone regulator. For more
details refer to the applicable regulator specifications.
PT7710 Series, PT7744, PT7745
Figure 1-1; Current Booster Application Schematic
C
IN
+
C
OUT
+
LOAD
V
IN
VID0
VID1
VID2
VID3
V
OUT
GND
GND
STBY*
L
IN
1μH
REMOTE SENSE (
–
)
REMOTE SENSE (+)
PROGRAMMING PINS
C
IN
+
L
IN
1μH
PT7744/45
Booster
20-25
13-19
27
7-11
V
O
V
IN
GND
Synch In
C
OUT
+
PT771x
6
4
3
2
1
26
20-25
12
5
13-19
27
7-11
V
O
V
IN
GND
SNS(+)
SNS(-)
Synch
Out
STBY
VID4 - VID0
Table 2-2; Booster Pin-Out Information
Pin Function
1
No Connect
2
No Connect
3
No Connect
4
No Connect
5
No Connect
6
No Connect
7
V
in
8
V
in
9
V
in
Pin Function
10 V
in
11 V
in
12 No Connect
13 GND
14 GND
15 GND
16 GND
17 GND
18 GND
Pin Function
19
GND
20
V
out
21
V
out
22
V
out
23
V
out
24
V
out
25
V
out
26
No Connect
27
Sync In
Notes:
1. Each booster requires the same amount of input and
output capacitance as recommended for a stand-alone
regulator. Consult the individual data sheet of the
applicable regulator, and the related application note
regarding capacitor selection for this product family.
2. The 1-μH filter choke located at the input of each
regulator and booster module (L
in
) is optional for most
applications. If specified, each inductor must be sized
to handle 20ADC at full output load.
3. The pin-out of the current booster modules include a
number pins identified, “No Connect” (see Table 2-2).
These pins are not connected internally to the module
but must be soldered to a pad to preserve the unit’s
mechanical integrity.
4. A similar PCB footprint and trace layout between the
regulator and each booster will facilitate current sharing
between all modules.
Table 2-1; Booster Compatibility
P7744 Booster
(3.3V Input Bus)
PT7745 Booster
(5V Input Bus)
Regulator
PT7711
PT7712
PT7713
PT7714
PT7715
PT7716
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PT7715 | Single High Side Driver, Noninverting Input. IN Voltage Threshold 9.5V & 6.0V; A IRS2118 packaged in a Lead-Free 8-Lead SOIC |
| PT7716 | 20-A 1.075V to 1.85V 3.3V-Input Programmable ISR |
| PT7721A | SMPS Controller |
| PT7721C | Single High Side Driver, Noninverting Input. IN Voltage Threshold 9.5V & 6.0V; A IRS2117 packaged in a Lead-Free 8-Lead SOIC shipped on Tape and Reel |
| PT7721N | SMPS Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PT7714A | 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 |
| PT7714C | 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 |
| PT7714N | 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 |
| PT7715 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:20-A 1.075V to 1.85V 5V-Input Programmable ISR |
| PT7715A | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 20A 1.075V-1.85V 5 Vin 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 |
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