CAT3614 Datasheet, PDF (2/12 Pages) Catalyst Semiconductor – 4-Channel 1-Wire LED Driver in 3x3mm Package

CAT3614
ABSOLUTE MAXIMUM RATINGS
Parameter
Rating
Unit
VIN, LEDx voltage
6
V
VOUT, C1±, C2± voltage
7
V
EN/DIM voltage
VIN + 0.7V
V
Storage Temperature Range
-65 to +160
°C
Junction Temperature Range
-40 to +125
°C
Lead Temperature
300
°C
RECOMMENDED OPERATING CONDITIONS
Parameter
Range
Unit
VIN
3 to 5.5
V
Ambient Temperature Range
-40 to +85
°C
I_LED per LED pin
0 to 31
mA
Total Output Current
0 to 124
mA
Typical application circuit with external components are shown on page 1.
ELECTRICAL OPERATING CHARACTERISTICS (over recommended operating conditions
unless specified otherwise) VIN = 3.6V, EN = High, ambient temperature of 25ºC.
Symbol Parameter
Conditions
Min Typ Max
I_Q Quiescent Current
1x mode, no load
1.5x mode, no load
0.3
0.5
1
1
3
8
I_QSHDN Shutdown Current
V_EN = 0V
1
I_LED-ACC LED Current Accuracy
1mA ≤ I_LED ≤ 31mA
±3
±8
I_LED-DEV LED Channel Matching
(I_LED - I_LEDAVG) / I_LEDAVG
±3
±7
R_OUT Output Resistance (open loop)
1x mode, I_OUT = 100mA
1.5x mode, I_OUT = 100mA
0.4
1
2.6
7
F_OSC
Charge Pump Frequency
0.8
1
1.3
I_{SC_MAX} Output short circuit Current Limit VOUT < 0.5V
30
60
100
I_{IN_MAX}
I_EN/DIM
V_HI
V_LO
Input Current Limit
EN/DIM Pin
Input Leakage
Logic High Level
Logic Low Level
1x mode, VOUT > 1V
200
300
600
-1
1
1.3
0.4
T_SD
Thermal Shutdown
145
165
175
T_HYS
V_UVLO
Thermal Hysteresis
Undervoltage lock out (UVLO)
threshold
10
20
30
1.7
2
2.4
Unit
mA
mA
µA
%
%
Ω
Ω
MHz
mA
mA
µA
V
V
ºC
ºC
V
Doc. No. 25095, Rev. 01
2
© 2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice