CAT3636 Datasheet, PDF (2/15 Pages) Catalyst Semiconductor – 6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3

CAT3636
ABSOLUTE MAXIMUM RATINGS
Parameter
VIN, LEDx, C1±, C2± voltage
VOUT voltage
EN/SET voltage
Storage Temperature Range
Junction Temperature Range
Lead Temperature
Rating
Unit
6
V
7
V
VIN + 0.7V
V
-65 to +160
°C
-40 to +125
°C
300
°C
RECOMMENDED OPERATING CONDITIONS
Parameter
Rating
Unit
VIN
2.5 to 5.5
V
Ambient Temperature Range
-40 to +85
°C
I_LED per LED pin
0 to 32
mA
Total Output Current
0 to 192
mA
Typical application circuit with external components is shown on page 1.
ELECTRICAL OPERATING CHARACTERISTICS
(over recommended operating conditions unless specified otherwise) VIN = 3.6V, EN = High, T_AMB = 25°C
Symbol
I_Q
I_QSHDN
I_LED-ACC
I_LED-DEV
R_OUT
F_OSC
I_{SC_MAX}
LED_TH
V_HYS
T_DF
I_{IN_MAX}
I_EN/DIM
V_HI
V_LO
T_SD
T_HYS
V_UVLO
Name
Quiescent Current
Shutdown Current
LED Current Accuracy
LED Channel Matching
Output Resistance (open loop)
Charge Pump Frequency
Output short circuit Current Limit
1x to 1.33x or 1.33x to 1.5x or
1.5x to 2x Transition Thresholds
at any LEDxx pin
1.33x to 1x Transition Hysteresis
Transition Filter Delay
Input Current Limit
EN/DIM Pin
• Input Leakage
• Logic High Level
• Logic Low Level
Thermal Shutdown
Thermal Hysteresis
Undervoltage lockout (UVLO)
threshold
Conditions
1x mode, no load
1.33 x mode, no load
1.5x mode, no load
2x mode, no load
V_EN = 0V
1mA ≤ I_LED ≤ 31mA
I_LED − I_LEDAVG
I_LED
1x mode, I_OUT = 100mA
1.33x mode, I_OUT = 100mA
1.5x mode, I_OUT = 100mA
2x mode, I_OUT = 100mA
1.33x and 2x mode
1.5x mode
V_OUT < 0.5V
V_OUT > 1V
Min
0.6
0.8
-1
1.3
Typ Max
0.5
3.5
3
2.5
1
±3
±1
0.5
4.5
3.5
6
0.8 1.1
1.1 1.4
80
Units
mA
mA
mA
mA
µA
%
%
Ω
Ω
Ω
Ω
MHz
MHz
mA
150
mV
400
mV
500
µs
450
mA
1
µA
V
0.4
V
150
°C
20
°C
2
V
Doc. No. 5020 Rev. A
2
© 2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice