W-6137 Datasheet, PDF (3/16 Pages) Copal Electronics – CMOS Boost Converter

W-6137
Table 3. ELECTRICAL OPERATING CHARACTERISTICS
(V_IN = 3.6 V, ambient temperature of 25$C (over recommended operating conditions unless otherwise specified))
Symbol
Parameter
Conditions
Min
Typ
I_Q
Operating Current
V_FB = 0.3 V
0.4
V_FB = 0.4 V (not switching)
0.1
I_SD
Shutdown Current
V_FB
FB Pin Voltage
I_FB
FB pin input leakage
I_LED
Programmed LED Current
V_SHDN = 0 V
3 LEDs with I_LED = 20 mA
R1 = 10
R1 = 15
R1 = 20
0.1
285
300
0.1
28.5
30
19
20
14.25
15
V_IH
SHDN Logic High
V_IL
SHDN Logic Low
Enable Threshold Level
Shutdown Threshold Level
0.8
0.4
0.7
F_SW
I_LIM
R_SW
I_LEAK
T_SD
T_HYS
Switching Frequency
Switch Current Limit
Switch “On” Resistance
Switch Leakage Current
Thermal Shutdown
Thermal Hysteresis
Efficiency
I_SW = 100 mA
Switch Off, V_SW = 5 V
Typical Application Circuit
0.7
1.0
250
300
1.0
1
150
20
86
V_UVLO
Undervoltage Lockout (UVLO) Threshold
1.9
V_OV-SW
Output Clamp Voltage
“Open LED” fault
29
Max Unit
1.5
mA
0.3
1
A
315
mV
1
A
31.5
mA
21
15.75
1.5
V
1.3
MHz
400
mA
2.0
5
A
$C
$C
%
V
V
3