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参数资料
| 型号： | PTB48560AAH |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 30 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT PACKAGE-11 |
| 文件页数： | 9/29页 |
| 文件大小： | 800K |
| 代理商： | PTB48560AAH |
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V Seq
O
V Bus
O
+Sense
Track
V Com
O
To
Internal
Error Amplifier
Note: The shaded functions are only available with the PTB48560B (3.3-V output).
Smart Sense
R
24.9 k
(TRK)
W
C
1F
(TRK)
m
20-mS
Delay
Supply
Supervisor
Notes:
PTB48560A, PTB48560B
PTB48560C
SLTS236A–MARCH 2005–REVISED OCTOBER 2005
Figure 18. Block Diagram of Auto-Track Features
1. Auto-Track compatible modules incorporate a Track input that can take direct control of the output voltage
during power-up transistions. The control relationship is on a volt-for-volt basis and is active between the 0 V
and the module set-point voltage. Once the Track input is above the set-point voltage, the module remains at
its set-point. Connecting the Track input of a number of such modules together allows their outputs to follow
a common control voltage during power up.
2. When +Sense is connected to the VOSeq output of the PTB48560B, the VOSeq output is tightly regulated to
the set-point voltage. In this configuration, the voltage at the VOBus output is up to 100 mV higher.
3. The VOSeq output on the PTB48560B cannot sink load current. This constraint does not allow the module to
coordinate a sequenced power down.
4. The slew rate for the Track input signal must be between 0.1 V/ms and 1 V/ms. Above this range, the VOSeq
output may no longer accurately follow the Track input voltage. A slew rate below this range may thermally
stress the converter. These slew rate limits are automatically met whenever the Track voltage is controlled by
the internal R-C time constant of the modules being sequenced.
5. If an external voltage is used to control the Track terminal, the source current must be limited. A resistance
value of 2.74-k is recommended for this purpose. This is necessary to protect the internal transistor to the
converter. This transistor holds the track control voltage at ground potential for 20 ms after the VOBus output
is in regulation.
17
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PTB48560AAS | 功能描述:DC/DC转换器 30-W 3.6V to 5.5V Adj DC/DC Converter 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: |
| PTB48560AAZ | 功能描述:DC/DC转换器 30-W 3.6V to 5.5V Adj DC/DC Converter 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: |
| PTB48560B | 制造商:TI 制造商全称:Texas Instruments 功能描述:30-W, 48-V INPUT DC/DC CONVERTERS WITH AUTO-TRACK TM SEQUENCING |
| PTB48560BAH | 功能描述:DC/DC转换器 30-W 1.8V to 3.6V Adj DC/DC Converter 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: |
| PTB48560BAS | 功能描述:DC/DC转换器 30-W 1.8V to 3.6V Adj DC/DC Converter 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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