SC415 Semtech Corporation, SC415 Datasheet - Page 6

• Manufacturer Part Number: SC415
• Description: Dual Synchronous Buck Controller
• Manufacturer: Semtech Corporation

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Electrical Characteristics (continued)
Notes:
1) RTON = 1Meg.
2) Guaranteed by design.
3) Semtech’s SmartDrive™ FET drive fi rst pulls DH high with a pull-up resistance of 10Ω (typical) until LX = 1.5V (typical). At this point, an additional pull-up device is
activated, reducing the resistance to 2Ω (typical). This negates the need for an external gate or boost resistor.
Parameter
PGDx Leakage
Fault Protection
VDD1 Under-Voltage Lockout
VOUTx Under-Voltage Fault
VOUTx Under-Voltage Fault Delay
VOUTx Over-Voltage Fault
VOUTx Over-Voltage Fault Delay
Thermal Shutdown
Inputs/Outputs
EN1, EN2 Input Low Voltage
ENx Input -
Forced Continuous Mode Operation
ENx Input High Voltage
ENx Input Resistance
FBx Input Low Voltage
FBx Input High Voltage
Power Good Output Low Voltage
Gate Drivers
Shoot-Thru Protection Delay
DLx Pull-Down Resistance
DLx Sink Current
DLx Pull-Up Resistance
DLx Source Current
DHx Pull-Down Resistance
DHx Pull-Up Resistance
DHx Sink/Source Current
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
R
Power Save Enabled
VOUTx Falling Edge
R Pull Down to RTN
VDD1 Falling Edge
PGDx
DHx or DLx Rising
R Pull Up to VDDx
>10°C Hysteresis
VOUTx Disabled
VOUTx Enabled,
BSTx - LXx = 5V
BSTx - LXx = 5V
Conditions
ENx = Open
= 10kΩ to VDDx
V
V
V
DHx High,
DLx High
DHx Low,
Latching,
DHx
DLx
DLx
DL Low
= 2.5V
= 2.5V
= 2.5V
Min
25°C
Typ
160
-30
4.0
2.0
1.5
0.8
3.1
1.3
1.3
20
0.3
30
8
5
1
2
2
2
Max
VDDx -0.7
Min
+17
3.7
-35
3.1
-40° to 85°C
Max
4.35
+23
-25
1.2
0.4
1.6
4
4
4
1
SC415
Units
μsec
nsec
clks
MΩ
MΩ
μA
°C
%
%
Ω
Ω
Ω
Ω
V
V
V
V
V
V
V
A
A
A
6