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| 型号： | PT5405C |
| 厂商： | Texas Instruments |
| 文件页数： | 8/15页 |
| 文件大小： | 0K |
| 描述： | REG 1.5V 6A 5/3.3VIN SMD |
| 标准包装： | 30 |
| 系列： | PT5400 |
| 类型： | 非隔离（POL） |
| 输出数： | 1 |
| 电压 - 输入（最小）： | 3.1V |
| 电压 - 输入（最大）： | 5.5V |
| Voltage - Output 1： | 1.5V |
| 电流 - 输出（最大）： | 5.5A |
| 电源（瓦） - 制造商系列： | 8W |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 5-SIP SMD 模块 |
| 尺寸/尺寸： | 1.11" L x 0.90" W x 0.31" H（28.2mm x 22.9mm x 7.9mm） |
| 包装： | 托盘 |
| 工作温度： | -40°C ~ 85°C |
| 效率： | 85% |
| 电源（瓦特）- 最大： | 8.3W |
| 其它名称： | 296-32688 PT5405C-ND |
Application Notes
PT5400 Series
Using the Inhibit Control of the PT5400 SWIFT ?
Series of Power Modules
For applications requiring output voltage On/Off control,
the PT5400 series of SWIFT power modules incorporate
an inhibit function. This function can be used wherever
there is a requirement for the module to be switched
off. The On/Off function is provided by the Inhibit
(pin 1) control.
The ISR functions normally with Pin 1 open-circuit,
providing a regulated output whenever a valid source
voltage is applied to V in , (pin 2). When a low-level 2
ground signal is applied to pin 1, the regulator output
will be disabled.
Figure 3-1 shows an application schematic, which details
the typical use of the Inhibit function. Note the discrete
transistor (Q1). The Inhibit control has its own internal
pull-up to +V in potential. An open-collector or open-drain
device is required to control this input 1 . The Inhibit pin
control thresholds are given in Table 3-1.
Table 3-1; Inhibit Control Requirements
Turn-On Time: In the circuit of Figure 3-1, turning Q 1
on applies a low-voltage to the Inhibit control (pin 1)
and disables the regulator output. Correspondingly,
turning Q 1 off allows the ISR to execute a soft-start
power up. The soft-start power up consists of a short
delay, t d , followed by a period, t (SS) , in which the output
voltage rises from zero to its full regulation voltage.
(See the section on Soft-Start Power Up). The module
produces a fully regulated output voltage within 25msec.
Figure 3-2 shows the typical rise in both output voltage
and input current for a PT5404 (1.8V), following the
turn-off of Q 1 . The turn off of Q 1 corresponds to the
drop in the Q 1 Vgs waveform. The time periods, t d and
t (SS) , are indicated. The waveforms were measured with
a 5Vdc input voltage, and 0.7- ? resistive load.
Figure 3-2
Parameter
Enable (VIH)
Min
Vin – 0.5
Max
Open
HORIZ SCALE: 5ms/Div
Disable (VIL)
–0.2V
+0.5V
Vout (1V/Div)
Iin (0.5A/Div)
Figure 3-1
+V IN
2
Vin
PT5401
Vo
4
+V O
Q1 Vgs (10V/Div)
INH
GND
Inhibit
C 1
1 0 0 μ F
Q1
BSS138
1
3
t d
t (SS)
COM
COM
Notes:
1. Use an open-collector device (preferably a discrete
transistor) for the Inhibit input. A pull-up resistor is not
necessary. To disable the output voltage, the control pin
should be pulled low to less than +0.5VDC.
For technical support and further information, visit http://power.ti.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PT5405N | 功能描述:DC/DC转换器 1.5V 6A 3.3/5V Input Adj SWIFT Module RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| PT5406 | 制造商:TI 制造商全称:Texas Instruments 功能描述:6-A 5-V/3.3-V Input Adjustable SWIFT Power Module |
| PT5406A | 功能描述:DC/DC转换器 1.2V 6A 3.3/5V Input Adj SWIFT Module RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| PT5406C | 功能描述:DC/DC转换器 1.2V 6A 3.3/5V Input Adj SWIFT Module RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| PT5406N | 功能描述:DC/DC转换器 1.2V 6A 3.3/5V Input Adj SWIFT Module RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
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