SC604A
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
VIN
VOUT
SC
Maximum
-0.3 to +7.0
-0.3 to +7.0
Indefinite
40
Units
V
Supply Voltage
Output Voltage
V
VOUT Short Circuit Duration
Thermal Resistance, Junction to Ambient
Operating Ambient
s
(1)
°C/W
°C
°C
°C
°C
°C
θJA
TA
-40 to +85
-40 to +150
-65 to +150
240
Junction Temperature Range
Storage Temperature Range
IR Reflow Temperature SC604AIMLTR
TJ
TSTG
TLEAD
TLEAD
IR Reflow Temperature SC604AIMLTRT
260
Note: (1) By JESD51 standards
Electrical Characteristics
Unless specified: TA = -40°C to 85°C, VIN= 2.85V to 5.5V, C1 = C2 = 1.0µF (ESR = 0.03Ω). Typical values @ TA=25°C, LED VF = 3.4V.
This device is ESD sensitive. Use of standard ESD handling precautions is required.
Parameter
Symbol
VIN
Conditions
Min
Typ
Max
Units
Input Supply Voltage
2.5
6.5
V
Current into LEDs
1, 2, 3 and 4
ILED
RSET = 24.0kΩ
RSET = 94.0kΩ
20
mA
mA
mA
mA
µA
µA
%
5.0
2.7V < VIN < 5.5V
3.1V < VIN < 5.5V
IOUT = 5mA
0.5
0.5
20
30
Quiescent Current
IQ
1500
1
2000
7
Enable = 0V
ILED Accuracy
ILED-ERR
ILED-LED-ERR
VTRANS1X
0.5mA ≤ ILED ≤ 30mA
0.5mA ≤ ILED ≤ 30mA
VLED = 3.6V, IOUT = 80mA, ILED = 20mA
± 5
Current Matching
± 3
%
1x mode to 1.5x mode
3.796
V
transition voltage (VIN falling)
1.5x mode to 2x mode
transition voltage (VIN falling)
VTRANS1.5X
VLED = 3.6V, IOUT = 80mA, ILED = 20mA
3.320
250
V
Oscillator Frequency
Output Over Voltage
fOSC
212.5
5.0
287.5
kHz
V
VOVP
Open circuit at any LED that is
programmed to be in the On state
(1)
Protection
2005 Semtech Corp.
www.semtech.com
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SEMTECH [ SEMTECH CORPORATION ]
