CAT4101_12 Datasheet, PDF (2/9 Pages) ON Semiconductor – 1 A Constant-Current LED Driver

CAT4101
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter
Rating
Units
VIN, RSET, EN/PWM Voltages
6
V
LED Voltage
25
V
Storage Temperature Range
−65 to +150
_C
Junction Temperature Range
−40 to +150
_C
Lead Temperature
300
_C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
Table 2. RECOMMENDED OPERATING CONDITIONS
Parameter
Rating
VIN Voltage
3.0 to 5.5
LED Pin Voltage
device enabled, continuous operation
device disabled or transient when enabled
Up to 6
Up to 25
Ambient Temperature Range
−40 to +85
LED Pin Current
Up to 1
NOTE: Typical application circuit with external components is shown on page 1.
1. For additional temperature options, please contact your nearest ON Semiconductor Sales office.
Units
V
V
_C
A
Table 3. ELECTRICAL OPERATING CHARACTERISTICS (Min and Max values in bold are over recommended operating
conditions unless specified otherwise. Typical values are at V_IN = 5.0 V, T_AMB = 25°C)
Symbol
Parameter
Conditions
Min
Typ
Max Units
I_LED−ACC
LED Current Accuracy
V_DOUT
V_RSET
I_Q
Dropout Voltage
RSET Pin Voltage
Quiescent Current
V_LED = 1 V, RSET = 1.47 kW
V_LED = 1 V, RSET = 750 W
V_LED = 1 V, RSET = 549 W
I_LED = 1 A
No LED, RSET = Floating
No LED, RSET = 549 W
315
350
385
mA
700
1000
500
mV
1.17 1.20 1.23
V
0.8
mA
8.0
I_QSHDN
R_EN/PWM
V_HI
V_LO
Shutdown Current
EN/PWM Pin
− Pull−down resistance
− Logic High Level
− Logic Low Level
V_EN = 0 V
1
mA
200
kW
1.3
V
0.4
V
T_SD
T_HYS
I_LED/I_RSET
V_UVLO
Thermal Shutdown
Thermal Hysteresis
RSET to LED Current gain ratio
Undervoltage lockout (UVLO) Threshold
100 mA LED current
150
_C
20
_C
400
2.0
V
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