CAT3626 Datasheet, PDF (2/14 Pages) Catalyst Semiconductor – 6-Channel LED Driver with I2C Interface

CAT3626
ABSOLUTE MAXIMUM RATINGS
Parameter
VIN, LEDxx voltage
VOUT, C1±, C2± voltage
EN, SDA, SCL voltage
Storage Temperature Range
Junction Temperature Range
Lead Temperature
Rating
Unit
6
V
7
V
VIN + 0.7V
V
-65 to +160
ºC
-40 to +125
ºC
300
ºC
RECOMMENDED OPERATING CONDITIONS
Parameter
VIN
Ambient Temperature Range
LED forward voltage
I_LED per LED pin
Range
Unit
3 to 5.5
V
-40 to +85
ºC
Up to 4.2
V
0 to 32
mA
Typical application circuit with external components are shown on page 1.
ELECTRICAL OPERATING CHARACTERISTICS
VIN = 3.6V, EN = High, ambient temperature of 25ºC (over recommended operating conditions unless specified
otherwise)
Symbol Parameter
Conditions
Min Typ Max Unit
I_Q
Quiescent Current
1x mode, all LEDs Off
0.5
mA
1x mode, all LEDs On
2.2
mA
1.5x mode, all LEDs Off
3.5
mA
I_QSHDN Shutdown Current
V_EN = 0V
0
1
µA
I_LED
LED Current Range with 6 LEDs
0
32
mA
I_LED-ACC LED Current Accuracy
1mA ≤ I_LED ≤ 31mA
±3
%
I_LED-DEV LED Channel Matching
(I_LED - I_LEDAVG) / I_LEDAVG
±3
%
R_OUT
Output Resistance (open loop)
1x mode, I_OUT = 120mA
1.5x mode, I_OUT = 120mA
0.5
2.8
Ω
Ω
F_OSC
Charge Pump Frequency
0.8
1
1.3
MHz
I_{SC_MAX} Output short circuit Current Limit VOUT < 0.5V
60
mA
I_{IN_MAX} Input Current Limit
1x mode, VOUT > 1V
300
mA
EN Pin
I_EN
- Input Leakage
V_HI
- Logic High Level
V_LO
- Logic Low Level
-1
1.3
1
µA
V
0.4
V
T_SD
Thermal Shutdown
165
ºC
T_HYS
Thermal Hysteresis
20
ºC
V_UVLO
Undervoltage lock out (UVLO)
threshold
2
V
Doc. No. 5014 Rev. A
2
© 2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice