SC4250 查看數據表（PDF） - Semtech Corporation
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SC4250 Datasheet PDF : 12 Pages
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SC4250
POWER MANAGEMENT
Absolute Maximum Ratings
Exceeding the specifications below may result in permanent damage to the device or device malfunction. Operation outside of the parameters
specified in the Electrical Characteristics section is not implied.
Parameter
Symbol
Maximum
Units
Supply Voltage
DRAIN, PWRGD/ PWRGD
VCC
-0.3 to 100
V
-0.3 to 100
V
SENSE, GATE
-0.3 to 20
V
UV, OV
-0.3 to 60
V
Thermal Resistance Junction to Ambient
Thermal Resistance Junction to Case
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering) 10 sec
Electrical Characteristics
Unless specified: TA = 25°C, VCC = 48V, VEE = 0V.
Values in bold apply over full operating temperature range.
θJA
θJC
TJ
TSTG
TLEAD
168
°C
38.8
°C
-40 to 125
°C
-65 to 150
°C
300
°C
Parameter
DC Characteristics
Supply Operating Range
Supply Current
Circuit Breaker Trip Voltage
Gate Pin Pull-up Current
Gate Pin Pull-down Current
Sense Pin Current
External Gate Drive
Symbol
VCC
ICC
VCB
IPU
IPD
ISENSE
∆VGATE
UV Pin High Threshold Voltage
UV Pin Low Threshold Voltage
UV Pin Hystersis
UV Pin Input Current
OV Pin High Threshold Voltage
OV Pin Low Threshold Voltage
OV Pin Hystersis
OV Pin Input Current
2005 Semtech Corp.
VUVH
VUVL
VUVHY
IINUV
VOVH
VOVL
VOVHY
IINOV
Test Conditions
UV = 3V, 0V = VEE, SENSE = VEE
VCB = (VSENSE - VEE)
Gate drive ON, VGATE = VEE
Any fault condition
VSENSE = 50mV
(VGATE -VEE), 20V < VDD ≤ 80V
(VGATE -VEE), 10V ≤ VDD ≤ 20V
UV Low to High transition
UV High to Low transition
VUV = VEE
OV Low to High transition
OV High to Low transition
VOV ≥ 1.5V
2
Min Typ Max Units
10
80
V
3
5
mA
50
60
70 mV
-50
µA
40
mA
-0.05
µA
9
13
16
V
8
1.241 1.273 1.305 V
1.192 1.223 1.253 V
50
mV
-0.1
µA
1.192 1.223 1.253 V
1.153 1.188 1.223 V
35
mV
-0.05
µA
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