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LTC2970CUFD-1 PDF预览

LTC2970CUFD-1

更新时间: 2024-11-23 12:05:03
品牌 Logo 应用领域
凌特 - Linear 电源电路电源管理电路监视器
页数 文件大小 规格书
36页 372K
描述
Dual I2C Power Supply Monitor and

LTC2970CUFD-1 技术参数

是否Rohs认证:不符合生命周期:Transferred
零件包装代码:QFN包装说明:HVQCCN, LCC24,.16X.2,20
针数:24Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.11Is Samacsys:N
可调阈值:NO模拟集成电路 - 其他类型:POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码:R-PQCC-N24JESD-609代码:e0
长度:5 mm湿度敏感等级:1
信道数量:2功能数量:1
端子数量:24最高工作温度:70 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:HVQCCN封装等效代码:LCC24,.16X.2,20
封装形状:RECTANGULAR封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):235电源:5 V
认证状态:Not Qualified座面最大高度:0.8 mm
子类别:Power Management Circuits最大供电电流 (Isup):5 mA
最大供电电压 (Vsup):5.75 V最小供电电压 (Vsup):4.5 V
标称供电电压 (Vsup):5 V表面贴装:YES
技术:CMOS温度等级:COMMERCIAL
端子面层:Tin/Lead (Sn/Pb)端子形式:NO LEAD
端子节距:0.5 mm端子位置:QUAD
处于峰值回流温度下的最长时间:20宽度:4 mm
Base Number Matches:1

LTC2970CUFD-1 数据手册

 浏览型号LTC2970CUFD-1的Datasheet PDF文件第2页浏览型号LTC2970CUFD-1的Datasheet PDF文件第3页浏览型号LTC2970CUFD-1的Datasheet PDF文件第4页浏览型号LTC2970CUFD-1的Datasheet PDF文件第5页浏览型号LTC2970CUFD-1的Datasheet PDF文件第6页浏览型号LTC2970CUFD-1的Datasheet PDF文件第7页 
LTC2970/LTC2970-1  
2
Dual I C Power  
Supply Monitor and  
Margining Controller  
U
DESCRIPTIO  
FEATURES  
The LTC®2970 is a dual power supply monitor and  
margining controller with an SMBus compatible I C bus  
Less Than ±±0.5 Total Unadjusted Error 14-Bit ΔΣ  
2
ADC with On-Chip Reference  
Dual, 8-Bit IDACs with 1x Voltage Buffers  
interface. A low-drift, on-chip reference and 14-bit ΔΣ A/D  
converterallowprecisemeasurementsofsupplyvoltages,  
load currents or internal die temperature. Fault manage-  
ment allows ALERT to be asserted for configurable over  
and under voltage fault conditions. Two voltage buffered,  
8-bit IDACs allow highly accurate programming of DC/DC  
converter output voltages. The IDACs can be configured  
to automatically servo the power supplies to the desired  
voltages using the ADC. The LTC2970-1 adds a tracking  
feature that can be used to turn multiple power supplies  
on or off in a controlled manner.  
Linear, Voltage Servo Adjusts Supply Voltages by  
Ramping IDAC Outputs Up/Down  
2
I C™ Bus Interface (SMBus Compatible)  
Extensive, User Configurable Fault Monitoring  
On-Chip Temperature Sensor  
Available in 24-Lead 4mm × 5mm QFN Package  
U
APPLICATIO S  
Dual Power Supply Voltage Servo  
Monitoring Supply Voltage and Current  
Programmable Power Supplies  
Programmable Reference  
The bus address is set to 1 of 9 possible combinations by  
pin strapping the ASEL0 and ASEL1 pins. The LTC2970/  
LTC2970-1 are packaged in the 24-lead, 4mm × 5mm  
QFN package.  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
U
TYPICAL APPLICATIO  
Dual Power Supply Monitor and Controller (One of Two Channels Shown)  
ADC Total Unadjusted Error  
vs Temperature  
8V TO 15V  
0.50  
0.25  
0
15 PARTS MOUNTED ON PCB  
0.1μF  
0.1μF  
12V  
IN  
V
V
DD  
IN  
OUT  
IN  
1/2 LTC2970  
GPIO_CFG  
I+  
I–  
V
V
V
IN0_BM  
IN0_BP  
OUT0  
ALERT  
SCL  
DC/DC  
2
I C BUS  
SMBUS  
COMPATIBLE  
CONVERTER  
–0.25  
SDA  
V
I
(
)
IN0_AP  
ADC V = 5V  
IN  
RUN/SS FB  
GPIO_0  
REF  
LOAD  
OUT0  
–0.50  
–25  
0
50  
–50  
75  
100  
25  
TEMPERATURE (°C)  
V
SGND  
GND  
IN0_AM  
29701 TA01b  
GND ASEL0 ASEL1  
0.1μF  
29701 TA01  
29701fc  
1

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