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参数资料
| 型号： | PTN78060HAH |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 45 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | DIP-7 |
| 文件页数： | 2/28页 |
| 文件大小： | 1948K |
| 代理商： | PTN78060HAH |
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APPLICATION INFORMATION
Adjusting the Output Voltage of the PTN78060 Wide-Output Adjust Power Modules
General
R
= 54.9 k
SET
W
1.25 V
V
- V
O
min
- R
P
(1)
Input Voltage Considerations
PTN78060W, PTN78060H
SLTS229A – NOVEMBER 2004 – REVISED APRIL 2005
A resistor must be connected between the VO Adjust control (pin 4) and GND (pin 1) to set the output voltage.
The adjustment range is from 2.5 V to 12.6 V for PTN78060W. The adjustment range is from 11.85 V to 22 V for
PTN78060H. If pin 4 is left open, the output voltage defaults to the lowest value.
Table 2 gives the standard resistor value for a number of common voltages, and with the actual output voltage
that the value produces. For other output voltages, the resistor value can either be calculated using Equation 1
and the constants for the applicable product in Table 1. Alternatilvey, RSET can be simply selected from the range
Table 1. RSET Formula Constants
PRODUCT
VMIN
RP
PTN780x0W
2.5 V
6.49 k
PTN780x0H
11.824 V
6.65 k
The PTN78060 is a step-down switching regulator. In order that the output remains in regulation, the input
voltage must exceed the output by a minimum differential voltage.
Another consideration is the pulse width modulation (PWM) range of the regulator's internal control circuit. For
stable operation, its operating duty cycle should not be lower than some minimum percentage. This defines the
maximum advisable ratio between the regulator input and output voltage magnitudes.
For satisfactory performance, the operating input voltage range of the PTN78060x must adhere to the following
requirements.
1. For PTN78060W output voltages lower than 10 V, the minimum input voltage is (VO+ 2 V ) or 7 V, whichever
is higher.
2. For PTN78060W output voltages equal to 10 V and higher, the minimum input voltage is (VO+ 2.5 V ).
3. The maximum input voltage for PTN78060W is (10
× V
O ) or 36 V, whichever is less.
4. For PTN78060H output voltages lower than 19 V, the minimum input voltage is (VO + 3 V) or 15 V, whichever
is higher.
5. For PTN78060H output voltages equal to 19 V and higher, the minimum input voltage is (VO+ 4 V ) .
As an example, Table 2 gives the operating input voltage range for the common output bus voltages. In addition,
the Electrical Characteristics table defines the available output voltage adjust range for various input voltages.
Table 2. Standard Values of Rset for Common Output Voltages
VO
RSET
VO
Operating
PRODUCT
(Required)
(Standard Value)
(Actual)
VI Range
2.5 V
Open
2.5 V
7 V to 25 V
3.3 V
78.7 k
3.306 V
7 V to 33 V
PTN780x0W
5 V
21 k
4.996 V
7 V to 36 V
12 V
732
12.002 V
14.5 V to 36 V
12 V
383 k
12.000 V
15 V to 36 V
15 V
15 k
14.994 V
18 V to 36 V
PTN780x0H
18 V
4.42 k
18.023 V
21 V to 36 V
22 V
95.3
21.998 V
26 V to 36 V
10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PTN78060HAH | 制造商:Texas Instruments 功能描述:ISR HORIZONTAL 3A ADJ O/P 78060 |
| PTN78060HAH | 制造商:Texas Instruments 功能描述:DC-DC CONV LINEAR REG 1 O/P 45W 3A 制造商:Texas Instruments 功能描述:DC-DC CONV, LINEAR REG, 1 O/P, 45W, 3A |
| PTN78060HAS | 功能描述:DC/DC转换器 3A Wide-In Wide Output Adj 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: |
| PTN78060HAST | 功能描述:DC/DC转换器 3A Wide-In Wide Output Adj 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: |
| PTN78060HAZ | 功能描述:DC/DC转换器 3A Wide-In Wide Output Adj 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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