参数资料
型号: SC493ULTRT
厂商: Semtech
文件页数: 5/28页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM MLPQ-20
标准包装: 1
系列: EcoSpeed®, SmartDrive™
PWM 型: 控制器
输出数: 1
频率 - 最大: 1MHz
电源电压: 3 V ~ 5.5 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 20-MLPQ
包装: 标准包装
其它名称: SC493ULTRTDKR
SC493
Electrical Characteristics (continued)
Parameter
Symbol
Condition
Min
Typ
Max
Units
Digital Input Electrical Specifications (A0, A1, A2, EN)
Input High Threshold
Input Low Threshold
V IH
V IL
V VDD(1) = 5.5V
V VDD(1) = 3.0V
1.6
0.4
V
V
Input High Current
Input Low Current
I IH
I IL
V VDD(1) = 5.5V
V VDD(1) = 5.5V
-1
-1
+1
+1
μA
μA
I 2 C Interface
Interface complies with slave mode I 2 C interface as described by Philips I 2 C specifications version 2.1 dated January, 2000
Digital Input Voltage Low
Digital Input Voltage High
V B-IL
V B-IH
1.6
0.4
V
V
SDA Output Low Level
Digital Input Current
Hysteresis of Schmitt Trigger Inputs
Maximum Glitch Pulse
Rejection
I/O Pin Capacitance
V SDA_LOW
I B-IN
V HYS
t SP
C IN
I DN (SDA) ≤ 3mA
-0.2
0.1
50
10
0.4
+0.2
V
μA
V
ns
pF
I 2 C Timing
Clock Frequency
SCL Low Period (2)
SCL High Period (2)
Data Hold Time (2)
Data Setup Time (2)
Setup Time for Repeated START
Condition (2)
Hold Time for Repeated START
Condition (2)
Setup Time for STOP Condition (2)
Bus-Free Time Between STOP and START
(2)
f SCL
t LOW
t HIGH
t HD_DAT
t SU_DAT
t SU_STA
t HD_STA
t SU_STO
t BUF
1300
600
0
100
600
600
600
1300
400
440
kHz
ns
ns
ns
ns
ns
ns
ns
ns
5
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