CAT4101TV-T75 Datasheet, PDF (2/11 Pages) ON Semiconductor – 1 A Constant-Current LED Driver with PWM Dimming

CAT4101
ABSOLUTE MAXIMUM RATINGS
Parameter
VIN, RSET, EN/PWM
LED Voltage
Storage Temperature Range
Junction Temperature Range
Lead Temperature
Rating
6
25
-65 to +160
-40 to +150
300
Units
V
V
°C
°C
°C
RECOMMENDED OPERATING CONDITIONS
Parameter
VIN
Ambient Temperature Range
LED Pin Current
Rating
3.0 to 5.5
-40 to +85
Up to 1
Units
V
°C
A
Typical application circuit with external components is shown on page 1.
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
I_LED-ACC
V_DOUT
V_RSET
I_Q
I_QSHDN
R_EN/PWM
V_HI
V_LO
T_SD
T_HYS
I_LED/I_RSET
V_UVLO
Name
LED Current Accuracy
Dropout Voltage
RSET Pin Voltage
Quiescent Current
Shutdown Current
EN/PWM Pin
• Pull-down resistance
• Logic High Level
• Logic Low Level
Thermal Shutdown
Thermal Hysteresis
RSET to LED Current gain ratio
Undervoltage lockout (UVLO)
Threshold
Conditions
V_LED = 1 V, RSET = 1.47 kΩ
V_LED = 1 V, RSET = 750 Ω
V_LED = 1 V, RSET = 549 Ω
I_LED = 1 A
No LED, RSET = Floating
No LED, RSET = 549 Ω
V_EN = 0 V
100 mA LED current
Min
315
1.17
1.3
Typ
350
700
1000
500
1.20
0.8
8.0
200
150
20
400
2.0
Max
385
1.23
1
0.4
Units
mA
mV
V
mA
µA
kΩ
V
V
°C
°C
V
Doc. No. MD-5036, Rev. D
2
© 2009 SCILLC. All rights reserved.
Characteristics subject to change without notice