参数资料
型号: SC419ULTRT
厂商: Semtech
文件页数: 5/24页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM 20-MLPQ
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 ~ 28 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: SC419ULTRTDKR
SC419
Electrical Characteristics (continued)
Parameter
Conditions
Min
Typ
Max
Units
Logic Inputs/Outputs
Logic Input High Voltage - EN
1.0
V
Logic Input High Voltage - PSV
Logic Input Low Voltage - EN
Forced continuous mode (PSV pulled to VDDA);
PSV with respect to VDDA
With respect to VDDA
-0.4
0.4
V
V
EN Input Bias Current
FB Input Bias Current
PSV Input Bias Current
EN = VDDA or AGND
FB = VDDA or AGND
PSV = VDDA
-10
-1
1
+10
+1
μA
μA
μA
High-Side Driver (DH, BST, LX)
Peak Current (1)
2.0
A
R DH_PULL-UP , LX < 0.5V
3.0
6.0
?
On Resistance
Rise Time (1)
Fall Time (1)
R DH_PULL-UP , LX > 0.5V
R DH_PULL-DOWN
C DH-LX = 3nF
C DH-LX = 3nF
1.0
0.6
22
12
2.0
1.2
?
?
ns
ns
Propagation Delay (1)
Shoot-thru Protection Delay (1)
From FB Comparator Input to DH
30
10
45
20
60
30
ns
ns
Bootstrap Switch On Resistance
Low-Side Driver (DL, VDDP, PGND)
Peak Current (1)
10
4.0
Ω
A
On Resistance
Rise Time (1)
Fall Time (1)
R DL_PULL-UP
R DL_PULL-DOWN
C DL = 3nF
C DL = 3nF
1.3
0.50
7
3.5
2.1
0.86
?
?
ns
ns
Notes:
(1) Guaranteed by design.
5
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