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參數(shù)資料
| 型號(hào)： | PT4486C |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 電源模塊 |
| 英文描述： | 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | SIP-26 |
| 文件頁(yè)數(shù)： | 4/8頁(yè) |
| 文件大?。?/td> | 202K |
| 代理商： | PT4486C |
For technical support and further information, visit http://power.ti.com
Application Notes
Increasing the Output Current of the PT4486
with the PT4497 Compatible Current Booster
The PT4497 is a 8.5-A “Current Booster” module
designed specifically for the PT4486 programmable
DC/DC converter. The booster is controlled directly
by the regulator, and effectively adds an additional
output stage that operates in parallel. This allows
the system to run sychronously, providing a low
noise solution. Up to two booster modules can be
connected to a PT4486 converter. Each booster
module increases the available output current by
8.5 A. A combination of one PT4486 converter and
two PT4497 booster modules can supply up to 25.5 A
of output current; enough power to supply a moder-
ately sized rack-mounted system. Figure 1-1 shows
the connection schematic for the regulator and cur-
rent booster combination.
A current booster is not a stand-alone product, and
can only operate with a regulator. It is housed in
the same package as its compatible regulator, and
shares the same mechanical outline. Except for an
increase in output current, the overall performance
of a converter/booster combination is identical to
that of a stand-alone converter.
Figure 1-1; Current Booster Application Schematic
Table 1-1; Booster Pin-Out Information
Pin
Function
Pin Function
1+Vin
10 +Vout
19 –Vout
2–Vin
11 +Vout
20 (–)Vsense
3
Do not connect
12 +Vout
21 Do not connect
4Vr
13 +Vout
22 Do not connect
5Va
14 –Vout
23 Do not connect
6
Do not connect
15 –Vout
24 Do not connect
7
Do not connect
16 –Vout
25 Do not connect
8+Vout
17 –Vout
26 DRV
9+Vout
18 –Vout
Notes:
1. Refer to the PT4486 specification table for the
performance of the regulator/booster combination.
2. The pin-out of the current booster modules include a
number pins identified, “Do not connect” (see Table 1-1).
These pins are not connected internally to the module
but must be soldered to a pad to preserve the unit’s
mechanical integrity.
3. A minimum of 33 F of output capacitance is required
across the output of each PT4497 booster for proper
operation. A value greater than 33 F will further
reduce transients due to large and/or fast load steps.
4. The converter and all boosters must be located on
the same printed circuit board. A similar footprint
and trace layout for each module will also facilitate
current sharing.
PT4486, PT4497
PT4497
PT4486
1
2
8 - 13
–V
IN
-V
OUT
+V
OUT
20
7
REMOTE SENSE (+)
REMOTE SENSE (-)
VID0
VID1
VID2
VID3
PROGRAMMING PINS
Inhibit
3
C
IN
33F
Optional
+
C
IN
33F
Optional
+
LOAD
1
8 - 13
14 - 19
+V
IN
25
VID4
24
23
22
21
14-19
2
4526
20
4526
C
OUT
33F
Optional
+
C
OUT
33F
Required 3
+
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| PT4486N | 功能描述:CONV DC-DC 12VADJ 48VIN 8.5A VRT RoHS:是 類(lèi)別:電源 - 板載 >> DC DC Converters 系列:PT4480 標(biāo)準(zhǔn)包裝:10 系列:PT4570 類(lèi)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(lèi)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(pán) 工作溫度:-40°C ~ 85°C 效率:84% 電源（瓦特）- 最大:30W |
| PT4493 | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:100-W 8.5-A Programmable Isolated DC/DC Converter |
| PT4493A | 功能描述:BOOSTER(PT4476) 8.5A 24VIN HRZ RoHS:是 類(lèi)別:電源 - 板載 >> 配件 系列:PT4470 標(biāo)準(zhǔn)包裝:1 系列:- 附件類(lèi)型:測(cè)試板 適用于相關(guān)產(chǎn)品:- |
| PT4493C | 功能描述:BOOSTER(PT4476)8.5A 24VIN HZ SMD RoHS:是 類(lèi)別:電源 - 板載 >> 配件 系列:PT4470 標(biāo)準(zhǔn)包裝:1 系列:- 附件類(lèi)型:測(cè)試板 適用于相關(guān)產(chǎn)品:- |
| PT4493N | 功能描述:BOOSTER(PT4476) 8.5A 24VIN VRT RoHS:是 類(lèi)別:電源 - 板載 >> 配件 系列:PT4470 標(biāo)準(zhǔn)包裝:1 系列:- 附件類(lèi)型:測(cè)試板 適用于相關(guān)產(chǎn)品:- |
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