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参数资料
| 型号： | ISL25700FRUZ-TK |
| 厂商： | Intersil |
| 文件页数： | 3/18页 |
| 文件大小： | 441K |
| 描述： | IC TEMP SWITCH MFET DRVR 10TQFN |
| 标准包装： | 1,000 |
| 功能： | 温度监控系统（传感器），温度开关 |
| 传感器类型： | 外部 |
| 感应温度： | 40°C ~ 110°C 跳变点 |
| 精确度： | ±3°C |
| 拓扑： | 比较器，电压基准 |
| 输出类型： | 电压 |
| 输出警报： | 无 |
| 输出风扇： | 无 |
| 电源电压： | 3 V ~ 15 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-UFQFN |
| 供应商设备封装： | 10-UTQFN（2.1x1.6） |
| 包装： | 带卷 (TR) |
ISL25700
3
FN6885.0
September 3, 2010
Pin Configuration
ISL25700
(10 LD 糡QFN)
TOP VIEW
9
8
7
6
1
2
3
4
R
TH
GND
ISENSE
VOUT
CCOMP
VDD
SDA
SCL
O
VDAC
NC
Pin Descriptions
糡QFN PIN
SYMBOL
DESCRIPTION
1
VDD
Power supply. This pins supplies the power necessary to operate the chip.
2
SCL
I
2
C interface input clock. This input is the serial clock of the I
2
C serial interface.
SCL requires an external pull-up resistor. It has an internal pull-down resistor of ~3M?to
prevent a floating input if the pin will be left unconnected.
3
SDA
Open Drain Serial Data Input/Output for the I
2
C interface. The SDA is a bidirectional serial
data input/output pin for I
2
C interface. It receives device address, operation code and data
from an I
2
C external master device at the rising edge of the serial clock SCL, and it shifts out
data after each falling edge of the serial clock.
The SDA pin requires an external pull-up resistor. It has an internal pull-down resistor of
~3M?to prevent a floating input if the pin will be left unconnected.
4
GND
Ground. Bias and reference ground of the chip.
5
R
TH
External NTC thermistor. An external NTC thermistor makes one shoulder of the Wheatstone
bridge and must be connected between the R
TH
pin and GND.
6
VDAC
DAC Output. This is the output of the precision 8-bit DAC. Default DAC output is in the range
of 0V to 2V. The DAC output range can be extended with a gain of 2 by setting the DAC Gain
bit.
7
VOUT
Output voltage that controls an external P-MOSFET. This pin drives an external P-MOSFET
proportional to unbalanced condition of the Wheatstone bridge.
8
ISENSE
Current Sense input. This pin monitors voltage drop over an external current sense resistor
RSENSE. Power dissipation of the P-MOSFET will be limited when ISENSE exceeds the voltage
drop limit set in the Current Sense Register.
9
CCOMP
Compensation capacitor. A compensation ceramic capacitor must be added between CCOMP
and GND to increase chip stability. This capacitor provides a negative feedback for the
operational amplifier and its value can be from 30pF to 1000pF.
10
NC
Not internally connected.
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