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: 13/29页
文件大小: 800K
代理商: PTB48560AAH
www.ti.com
15
6
4
2
15
6
4
2
1
2
4
5
9
10
8
7
6
VOAdjust
VOBus
Track
+Sense
VOCOM
-Sense
+VI
-V I
PEN
PTB48560A
+VI
-V I
R1
14.3 k
W
U1
U2
3
C2
100 F
m
R2
698
W
C3
100 F
m
C5
100 F
m
C4
100 F
m
3
U3
VI
PTH05050W
VO
Track
Inhibit GND Adjust
VI
PTH05050W
VO
Track
Inhibit GND Adjust
R3
8.87 k
W
V BUS (5 V)
O
V(POL)1 (3.3 V)
V
2 (1.5 V)
(POL)
3
NEN
C1
47 F
m
PTB48560A, PTB48560B
PTB48560C
SLTS236A–MARCH 2005–REVISED OCTOBER 2005
Figure 21. Power-Up Sequencing With Nonisolated POL Modules
The output voltage of the PTB48560 must be set to a valid intermediate supply voltage. This depends on the
input voltage requirements of the downstream modules. For 5-V input modules, the PTB48560A is selected and
adjusted for an output of 5 V. For 12-V input modules, the PTB48560C is used and adjusted for an output of
12 V. U2 and U3, can be set to any voltage over their applicable adjustment range. In this example, they are set
to 3.3 V (R2 = 698 ) and 1.5 V (R3 = 8.87 k), respectively. Figure 22 shows the power-up waveforms from
Figure 21 when the Track control of all three modules are simply connected together.
The PTB48560 converter (U1) provides the required intermediate voltage from the VOBus output to power the
downstream modules, while holding the common Track control at ground potential. After allowing times for U2
and U3 to initialize, U1 removes the ground from the Track control, allowing this voltage to rise. The outputs from
the two nonisolated modules then rise simultaneously to their respective set-point voltages.
20
相关PDF资料
PDF描述
PTB48560BAS 1-OUTPUT 30 W DC-DC REG PWR SUPPLY MODULE
PTB48560BAH 1-OUTPUT 30 W DC-DC REG PWR SUPPLY MODULE
PTB48560CAS 1-OUTPUT 30 W DC-DC REG PWR SUPPLY MODULE
PTB48560AAZ 1-OUTPUT 30 W DC-DC REG PWR SUPPLY MODULE
PTB48580AAS 2-OUTPUT 30 W DC-DC REG PWR SUPPLY MODULE
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: