SC4609EVB Ver la hoja de datos (PDF) - Semtech Corporation
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SC4609EVB Datasheet PDF : 18 Pages
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SC4609
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Unless otherwise specified, VCC = 3.3V, CT = 270pF, TA = -40°C to 85°C, TA=TJ
Parameter
Test Conditions
Error Amplifier (Cont.)
Slew Rate (1)
VOUT High
VOUT Low
Oscillator
ICOMP = -5.5mA
ICOMP = 5.5mA
Initial Accuracy
Voltage Stability
Temperature Coefficient
Minimum Operation Frequency (1)
TA = 25°C
TA = 25°C, VCC = 2.7V to 5.5V
TA = -40°C to 85°C
Maximum Operation Frequency (1)
Ramp Peak to Valley
Ramp Peak Voltage
Ramp Valley Voltage
Sleep, Soft Start, Current Limit
Sleep Threshold
Measured at FSET
Sleep Input Bias Current
Programmable Soft Start Time (1)
VSYNC = 0V
C = 20nF
Soft Start Charge Current
ISET Bias Current
Temperature Coefficient of ISET
TA = 25°C
TJ = 25°C
Current Limit Blank Time (1)
Gate Drive
DRVH Minimum OFF Time
Peak Source (DRVH)
Peak Sink (DRVH)
Peak Source (DRVL) (1)
Peak Sink (DRVL)
Output Rise Time
Output Fall Time
Minimum Non-Overlap (1)
TA = 25°C, VSENSE = 0
Vgs = 3.3V, ISOURCE = 100mA
Vgs = 3.3V, ISINK = 100mA
Vgs = 3.3V, ISOURCE = 100mA
Vgs = 3.3V, ISINK = 100mA
Vgs = 3.3V, COUT = 4.7nF
Vgs = 3.3V, COUT = 4.7nF
2006 Semtech Corp.
3
Min
Typ
VCC - 0.5
2.4
VCC - 0.3
0.3
525
575
0.05
0.02
50
1
1.3
0.3
-1
1.75
-5.75
-45
-50
0.28
130
160
2.7
1.8
2.2
1.5
35
27
40
Max
Unit
V/µs
V
0.45
625
kHz
%/V
%/°C
kHz
1M
Hz
V
V
V
75
mV
µA
ms
µA
-55
µA
%/°C
ns
200
ns
Ω
Ω
Ω
Ω
ns
ns
ns
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