MAX8834Y(2009) Просмотр технического описания (PDF) - Maxim Integrated
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MAX8834Y Datasheet PDF : 43 Pages
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Adaptive Step-Up Converters
with 1.5A Flash Driver
ELECTRICAL CHARACTERISTICS (continued)
(VIN = 3.6V, VAGND = VPGND = VFGND = 0V, VDD = 1.8V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at
TA = +25°C.) (Note 1)
PARAMETER
CONDITIONS
Shutdown Leakage Current
I2C INTERFACE
SDA Output Low Voltage
I2C Clock Frequency
IN and VDD in UVLO,
VLED_EN = VGSMB = 0V
ISDA = 3mA
TA = +25°C
TA = +85°C
Bus-Free Time Between STOP
and START
tBUF
Hold Time Repeated START
Condition
tHD_STA
SCL Low Period
SCL High Period
tLOW
tHIGH
Setup Time Repeated START
Condition
tSU_STA
SDA Hold Time
SDA Setup Time
Setup Time for STOP Condition
STEP-UP DC-DC CONVERTER
tHD_DAT
tSU_DAT
tSU_STO
OUT Voltage Range
100mV steps
OUT Voltage Accuracy
OUT Overvoltage Protection
No load, VOUT = 5V
When running in adaptive mode
Adaptive Output Voltage
Regulation Threshold
IFLED1 = IFLED2 = 492.24mA setting, IINDLED = 16mA
PGOOD Window Comparator
Line Regulation
Load Regulation
nFET Current Limit
VOUT = 5V, in programmable mode
VIN = 2.5V to 4.2V
IOUT = 0mA to 1500mA
LX nFET On-Resistance
LX pFET On-Resistance
LX to PGND, ILX = 200mA
LX to OUT, ILX = 200mA
LX Leakage
VLX = 5.5V
Input Current Limit Range During
GSMB Trigger
TA = +25°C
TA = +85°C
Input Current Limit Step Size
During GSMB Trigger
Input Current Limit Accuracy
Operating Frequency, No Load
IILIM = 100mA, in dropout mode
MAX8834Y
TA = +25°C
TA = -40°C to +85°C
MAX8834Z
TA = +25°C
TA = -40°C to +85°C
MIN TYP MAX UNITS
-1
0.01
+1
μA
0.1
0.03 0.4
V
400 kHz
1.3
μs
0.6
0.1
μs
1.3
0.2
μs
0.6
0.2
μs
0.6
0.1
μs
0
-0.01
μs
100
50
ns
0.6
0.1
μs
3.7
5.2
V
-2.75 ±0.5 +2.75 %
5.2
5.35
5.5
V
150
mV
-15 -12.5 -10
%
0.1
%/V
0.5
%/A
3.6
A
0.055 0.130
0.12 0.200
0.1
1
μA
0.1
50
800
mA
50
mA
-15
+15
%
1.8
2
2.2
1.6
2.4
MHz
3.6
4
4.4
3.2
4.8
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