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CAT3604V
Table 3. ELECTRICAL OPERATING CHARACTERISTICS
(over recommended operating conditions unless specified otherwise) V IN = 3.6 V, EN = High, T AMB = 25 ° C.
Symbol
I Q
Quiescent Current
Name
Conditions
1x mode, no load
Min
Typ
1.0
Max
Units
mA
1.33x mode, no load
1.5x mode, no load
2x mode, no load
1.7
2.2
2.4
I QSHDN
I LED ? ACC
I LED ? DEV
I LED
Shutdown Current
LED Current Accuracy
LED Channel Matching
Programmed LED Current
V EN = 0 V
I LEDAVG / I LEDAVG ? NOMINAL
(I LED ? I LEDAVG ) / I LEDAVG
R SET = 34.0 k W
± 2
± 1.5
2.4
1
m A
%
%
mA
R SET = 5.23 k W
R SET = 2.67 k W
15
30
V RSET
R OUT
RSET Regulated Voltage
Output Resistance (open loop)
1x mode
0.58
0.6
0.8
0.62
V
W
1.33x mode, V IN = 3 V
1.5x mode, V IN = 2.7 V
2x mode, V IN = 2.4 V
5
5
10
F OSC
Charge Pump Frequency
1.33x and 2x mode
0.8
1
1.3
MHz
1.5x mode
1
1.3
1.6
I SC_MAX
I IN_MAX
LED TH
V HYS
Output short circuit Current Limit
Input Current Limit
1x to 1.33x, 1.33x to 1.5x or 1.5x to 2x
Transition Thresholds at any LED pin
1x Mode Transition Hysteresis
V OUT < 0.5 V
V OUT > 1 V
50
250
130
400
mA
mA
mV
mV
EN Pin
R EN
V HI
V LO
T SD
T HYS
? Internal Pull ? down Resistor
? Logic High Level
? Logic Low Level
Thermal Shutdown
Thermal Hysteresis
1.3
100
150
20
0.4
k W
V
V
° C
° C
V UVLO
Undervoltage lockout (UVLO) threshold
1.6
1.8
2.0
V
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