SC4505 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'SC4505' PDF : 15 Pages View PDF
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Unless specified: VIN = 3.6V, -40°C < TA = TJ < 85°C, , RO1SET=6.98KΩ RO2SET=1.54KΩ
Parameter
Test Conditions
EN_FL, FL_TRB, EN_BL
Input Current
VEN_FL = 0V to 4.7V
EN_BL PWM Dimming
Control Frequency
Note 1
EN_BL PWM Dimming
Control Duty Cycle
FPWM=32kHz , Note 1
FTO Sourcing Current
EN_FL = FL_TRB = 1
FTO Trip Threshold Voltage
FTO Pull Down Current
EN_FL = 1, FL_TRB = 0
Overvoltage Protection
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
Backlight Current Accuracy ( I O1 )
Max Backlight Current ( I O1 )
Flash Current Accuracy ( I O2 )
Max Flash Current ( I O2 )
Torch Output Current ( I O2 )
IO1 Off Leakage Current
IO2 Off Leakage Current
VO Pulldown in Overvoltage Fault
Note 1: Guaranteed by Design
EN_BL = 1
TJ = 25°C, RO1SET =6.98KΩ
EN_FL = FL_TRB = 1
TJ = 25°C, RO2SET =1.54KΩ
EN_FL=1, FL_TRB=0
TJ = 25°C, RO2SET =1.54KΩ
VIO1 =28V
VIO2 =28V
SC4505
Min
Typ
Max Unit
0.01
1
µA
50
50K
Hz
12
100
%
1.2
µA
1.25
V
2.6
mA
28
V
155
°C
10
°C
19
20
21
mA
75
mA
92
100
108
mA
125
mA
18
mA
0.1
1
µA
0.1
1
µA
7
KΩ
2007 Semtech Corp.
3
www.semtech.com
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