MAX8834Y(2009) View Datasheet(PDF) - Maxim Integrated
Part Name
Description
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MAX8834Y Datasheet PDF : 43 Pages
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Adaptive Step-Up Converters
with 1.5A Flash Driver
Typical Operating Characteristics (continued)
(Circuit of Figure 1, VIN = 3.6V, VOUT = 3.8V, VDD = 3.0V, TA = +25°C, unless otherwise noted.)
VOUT
VLX
ILX
VCOMP
SHUTDOWN WAVEFORM
(MAX8834Y, VOUT = 5V)
MAX8834Y/Z toc15
5V
2V/div
2V/div
VOUT = 5V
ILED1 = 31.25mA
500mA/div
1V/div
400μs/div
SHUTDOWN WAVEFORM
(MAX8834Y, ADAPTIVE MODE)
MAX8834Y/Z toc16
VOUT
2V/div
VLX
2V/div
ADAPTIVE MODE
ILX
ILED1 = 31.25mA 500mA/div
VCOMP
400μs/div
1V/div
VOUT
VLX
ILX
VCOMP
SHUTDOWN WAVEFORM
(MAX8834Z, VOUT = 5V)
MAX8834Y/Z toc17
5V
2V/div
2V/div
VOUT = 5V
ILED1 = 31.25mA
500mA/div
400μs/div
1V/div
SHUTDOWN WAVEFORM
(MAX8834Z, ADAPTIVE MODE)
MAX8834Y/Z toc18
VOUT
2V/div
VLX
2V/div
ILX
VCOMP
ADAPTIVE MODE
ILED1 = 31.25mA 500mA/div
400μs/div
1V/div
LIGHT-LOAD SWITCHING WAVEFORMS
(MAX8834Y)
MAX8834Y/Z toc19
LIGHT-LOAD SWITCHING WAVEFORMS
(MAX8834Z)
MAX8834Y/Z toc20
VLX
2V/div
VLX
2V/div
0V
0V
ILX
VOUT
AC RIPPLE
0mA
200mA/div
VOUT = 5V
IOUT = 16mA 20mV/div
400ns/div
ILX
VOUT
AC RIPPLE
0mA
200mA/div
VOUT = 5V
IOUT = 16mA
20mV/div
400ns/div
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