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参数资料
| 型号： | DS2252T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | Microcontroller |
| 英文描述： | 8-BIT, MICROCONTROLLER, SMA40 |
| 封装： | SIMM-40 |
| 文件页数： | 10/12页 |
| 文件大小： | 132K |
| 代理商： | DS2252T |
MAX764/MAX765/MAX766
-5V/-12V/-15V or Adjustable,
High-Efficiency, Low IQ DC-DC Inverters
_______________________________________________________________________________________
7
CIRCUIT OF FIGURE 2, V+ = 5V, VOUT = -5V, ILOAD = 80mA
A: OUTPUT RIPPLE, 100mV/div
B: INDUCTOR CURRENT, 500mA/div
C: LX WAVEFORM, 10V/div
5
s/div
DISCONTINUOUS CONDUCTION AT
HALF CURRENT LIMIT
A
B
0A
C
0V
CIRCUIT OF FIGURE 2, V+ = 5V, VOUT = -5V, ILOAD = 240mA
A: OUTPUT RIPPLE, 100mV/div
B: INDUCTOR CURRENT, 500mA/div
C: LX WAVEFORM, 10V/div
5
s/div
CONTINUOUS CONDUCTION AT
FULL CURRENT LIMIT
A
B
0A
C
0V
______________________________________________________________Pin Description
Ground
GND
5
Positive Power-Supply Input. Must be tied together. Place a 0.1F input bypass capacitor as close to
the V+ and GND pins as possible.
V+
6, 7
Drain of the Internal P-Channel Power MOSFET. LX has a peak current limit of 0.75A.
LX
8
1.5V Reference Output that can source 100A for external loads. Bypass to ground with a 0.1F capacitor.
REF
4
Active-High Shutdown Input. With SHDN high, the part is in shutdown mode and the supply current is less
than 5A. Connect to ground for normal operation.
SHDN
3
PIN
Feedback Input. Connect FB to REF to use the internal voltage divider for a preset output. For adjustable-
output operation, use an external voltage divider, as described in the section
Setting the Output Voltage.
FB
2
Sense Input for Fixed-Output Operation (VFB = VREF). OUT must be connected to VOUT.
OUT
1
FUNCTION
NAME
____________________________Typical Operating Characteristics (continued)
(V+ = 5V, VOUT = -5V, TA = +25°C, unless otherwise noted.)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2252T_06 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Soft Microcontroller Module |
| DS2252T_1 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Secure Microcontroller Module |
| DS2252T08-08 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| DS2252T128-08 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microcontroller |
| DS2252T-128-12 | 功能描述:模块化系统 - SOM RoHS:否 制造商:Digi International 外观尺寸:ConnectCore 9P 处理器类型:ARM926EJ-S 频率:150 MHz 存储容量:8 MB, 16 MB 存储类型:NOR Flash, SDRAM 接口类型:I2C, SPI, UART 工作电源电压:3.3 V 最大工作温度:+ 85 C 尺寸:1.97 in x 1.97 in x 6.1 in |
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