- 您现在的位置：买卖IC网 > PDF目录97637 > PT4484N (TEXAS INSTRUMENTS INC) 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE PDF资料下载
参数资料
| 型号： | PT4484N |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | SIP-26 |
| 文件页数： | 4/8页 |
| 文件大小： | 176K |
| 代理商： | PT4484N |
For technical support and more information, see inside back cover or visit www.ti.com
Application Notes
Increasing the Output Current of the PT4484
with the PT4498 Compatible Current Booster
The PT4498 is a 20-A “Current Booster” module
designed specifically for the PT4484 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 PT4484 converter. Each booster
module increases the available output current by
20A. A combination of one PT4484 converter and
two PT4498 booster modules can supply up to 60A
of output current; enough to supply a large multi-
processor system. Figure 1-1 shows the connection
schematic for the regulator and current 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 PT4484 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 150F of output capacitance is required
across the output of each PT4498 booster for proper
operation. A value greater than 150F 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.
PT4484, PT4498
PT4498
PT4484
1
2
8 - 13
–V
IN
-V
OUT
+V
OUT
20
7
REMOTE SENSE (+)
REMOTE SENSE (-)
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
14-19
2
4526
20
4526
C
OUT
150F
Optional
+
C
OUT
150F
Required 3
+
相关PDF资料 |
PDF描述 |
|---|---|
| PT4484A | 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| PT4484C | 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| PT4494A | 1-OUTPUT 100 W DC-DC BOOSTER MODULE |
| PT4474N | 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| PT5103S | SWITCHING REGULATOR, 875 kHz SWITCHING FREQ-MAX, SFM3 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PT4485 | 制造商:TI 制造商全称:Texas Instruments 功能描述:100-W 30-A Programmable Isolated DC/DC Converter |
| PT4485A | 功能描述:直流/直流开关转换器 100W 48V-Input 12V Output Iso DC/DC RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| PT4485C | 功能描述:CONV DC 12VADJ 48VIN 8.5A HZ SMD RoHS:是 类别:电源 - 板载 >> DC DC Converters 系列:PT4480 标准包装:10 系列:PT4570 类型:隔离 输出数:1 电压 - 输入（最小）:36V 电压 - 输入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出（最大）:3.3A 电源（瓦） - 制造商系列:30W 电压 - 隔离:1.5kV（1500V） 特点:- 安装类型:表面贴装 封装/外壳:19-SIP SMD 模块 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包装:托盘 工作温度:-40°C ~ 85°C 效率:84% 电源（瓦特）- 最大:30W |
| PT4485N | 功能描述:直流/直流开关转换器 100W 48V-Input 12V Output Iso DC/DC RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| PT4486 | 制造商:TI 制造商全称:Texas Instruments 功能描述:100-W 30-A Programmable Isolated DC/DC Converter |
发布紧急采购，3分钟左右您将得到回复。