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参数资料
| 型号： | PT6322B |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 3 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDFM12 |
| 封装： | PLASTIC, SIP-12 |
| 文件页数： | 10/16页 |
| 文件大小： | 717K |
| 代理商： | PT6322B |
For assistance or to order, call (800) 531-5782
3
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
Application
Notes
PT6100/6120/6210/6220/6300/6320 Series
Adjusting the Output Voltage of Power Trends’
Wide Input Range Bus ISRs
The output voltage of the Power Trends’ Wide Input Range
Series ISRs may be adjusted higher or lower than the factory
trimmed pre-set voltage with the addition of a single external
resistor. Table 1 accordingly gives the allowable adjustment
range for each model for either series as Va (min) and Va (max).
Adjust Up:
An increase in the output voltage is obtained by
adding a resistor R2, between pin 12 (Vo adjust) and pins 5-8
(GND).
Adjust Down:
Add a resistor (R1), between pin 12 (Vo adjust)
and pins 9-11(Vout).
Refer to Figure 1 and Table 2 for both the placement and value
of the required resistor; either (R1) or R2 as appropriate.
Notes:
1. Use only a single 1% resistor in either the (R1) or R2 loca-
tion. Place the resistor as close to the ISR as possible.
2. Never connect capacitors from Vo adjust to either GND or
Vout. Any capacitance added to the Vo adjust pin will affect
the stability of the ISR.
4. Adjustments to the output voltage may place additional
limits on the maximum and minimum input voltage for the
part. The revised maximum and minimum input voltage
limits must comply with the following requirements. Note
that the minimum input voltage limits are also model depen-
dant.
Vin (max) = (8 x Va)V or *30/38V,
whichever is less.
*Limit is 30V when inhibit function is active.
PT6x0x/PT6x1x series:
Vin (min) = (Va + 4)V or 9V,
whichever is greater.
PT6x2x series:
Vo <10V;
Vin (min) = (Va + 2.0)V or 7.0V,
whichever is greater.
Vo ≥10V;
Vin (min) = (Va + 2.5)V
Figure 1
The values of (R1) [adjust down], and R2 [adjust up], can
also be calculated using the following formulae.
Ro (Va – 1.25)
(R1)
=
Vo – Va
k
1.25 Ro
k
R2
=
Va – Vo
Where: Vo = Original output voltage
Va = Adjusted output voltage
Ro = The resistance value fromTable 1
Table 1
ISR ADJUSTMENT RANGE AND FORMULA PARAMETERS
1Adc Rated
PT6102
PT6101
PT6103
PT6122
PT6121
2Adc Rated
PT6213
PT6212
PT6214
PT6223
PT6222
3Adc Rated
PT6303
PT6302
PT6304
PT6323
PT6322
Vo (nom)
3.3
5.0
12.0
Va (min)
1.89
1.88
2.18
2.43
Va (max)
6.07
11.25
8.5
22.12
Ro (k
)
66.5
150.0
90.9
243.0
R2
Adjust Up
C1
1
F Ceramic
(Optional)
C2
100
F
(Req'd)
Vo
COM
Vin
+
(R1)
Adj Down
PT6100/6200/6300
9,10,11
12
5,6,7,8
2,3,4
Vin
V o
G N D
Vo(adj)
More Application Notes
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相关代理商/技术参数 |
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| PT6322C | 功能描述:开关变换器、稳压器与控制器 5V 3A Wide-Inp LDO Adj Step-Down ISR RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| PT6322G | 功能描述:REGULATOR 5V 3A HORZ HZ HT RoHS:是 类别:电源 - 板载 >> DC DC Converters 系列:PT6320 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 |
| PT6322N | 功能描述:开关变换器、稳压器与控制器 5V 3A Wide-Inp LDO Adj Step-Down ISR RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| PT6322R | 功能描述:DC/DC转换器 5V 3A Wide-Inp LDO Adj Step-Down ISR 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: |
| PT6323 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:3.3V 3A Wide-Input Low Drop-Out Adjustable Step-Down ISR |
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