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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
I Q
Parameter
Quiescent Current
Conditions
1x mode, all LEDs Off
Min
Typ
0.5
Max
Unit
mA
1x mode, all LEDs On
1.5x mode, all LEDs Off
2.2
3.5
I QSHDN
Shutdown Current
V EN = 0 V
0
1
m A
I LED
I LED ? ACC
I LED ? DEV
R OUT
LED Current Range with 6 LEDs
LED Current Accuracy
LED Channel Matching
Output Resistance (open loop)
1 mA ≤ I LED ≤ 31 mA
(I LED ? I LEDAVG ) / I LEDAVG
1x mode, I OUT = 120 mA
0
± 3
± 3
0.5
31
mA
%
%
W
1.5x mode, I OUT = 120 mA
2.2
F OSC
I SC_MAX
I IN_MAX
Charge Pump Frequency
Output short circuit Current Limit
Input Current Limit
V OUT < 0.5 V
1x mode, V OUT > 1 V
0.8
1
60
300
1.3
MHz
mA
mA
EN/DIM Pin
I EN/DIM
V HI
V LO
T SD
T HYS
V UVLO
? Input Leakage
? Logic High Level
? Logic Low Level
Thermal Shutdown
Thermal Hysteresis
Undervoltage lock out (UVLO) threshold
? 1
1.3
165
20
2
1
0.4
m A
V
V
° C
° C
V
Table 4. RECOMMENDED EN, ENM AND ENS TIMING
(For 3 V ≤ VI N ≤ 5.5 V, over full ambient temperature range ? 40 to +125 ° C.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
T SETP
EN setup from shutdown
10
m s
T LO
T HI
T OFF
T D
T DEC
ENM, ENS program low time
ENM, ENS program high time
EN low time to shutdown
LED current enable
LED current decrement
0.3
0.3
1.5
40
0.1
200
m s
m s
ms
m s
m s
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