CAT3616 Datasheet, PDF (3/14 Pages) Catalyst Semiconductor – 6-Channel Charge Pump LED Driver with EZDimTM

CAT3616
Table 3. ELECTRICAL OPERATING CHARACTERISTICS
VIN = 3.6 V, EN = High, ambient temperature of 25°C (over recommended operating conditions unless specified otherwise)
Symbol
Parameter
Conditions
Min
Typ
Max
I_Q
Quiescent Current
1x mode, all LEDs Off
0.5
1x mode, all LEDs On
2.2
1.5x mode, all LEDs Off
3.5
I_QSHDN
I_LED
I_LED−ACC
I_LED−DEV
R_OUT
Shutdown Current
LED Current Range with 6 LEDs
LED Current Accuracy
LED Channel Matching
Output Resistance (open loop)
F_OSC
I_{SC_MAX}
I_{IN_MAX}
I_EN/DIM
V_HI
V_LO
Charge Pump Frequency
Output short circuit Current Limit
Input Current Limit
EN/DIM Pin
− Input Leakage
− Logic High Level
− Logic Low Level
V_EN = 0 V
1 mA ≤ I_LED ≤ 31 mA
(I_LED − I_LEDAVG) / I_LEDAVG
1x mode, I_OUT = 120 mA
1.5x mode, I_OUT = 120 mA
V_OUT < 0.5 V
1x mode, V_OUT > 1 V
0
1
0
31
±3
±3
0.5
2.2
0.8
1
1.3
60
300
−1
1
1.3
0.4
T_SD
Thermal Shutdown
165
T_HYS
Thermal Hysteresis
20
V_UVLO
Undervoltage lock out (UVLO) threshold
2
Table 4. RECOMMENDED EN, ENM AND ENS TIMING
(For 3 V ≤ VIN ≤ 5.5 V, over full ambient temperature range −40 to +125°C.)
Symbol
Parameter
Conditions
T_SETP
T_LO
T_HI
T_OFF
T_D
T_DEC
EN setup from shutdown
ENM, ENS program low time
ENM, ENS program high time
EN low time to shutdown
LED current enable
LED current decrement
Min
Typ
Max
10
0.3
200
0.3
1.5
40
0.1
Unit
mA
mA
mA
%
%
W
MHz
mA
mA
mA
V
V
°C
°C
V
Unit
ms
ms
ms
ms
ms
ms
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