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MAX8834Y/MAX8834Z
Adaptive Step-Up Converters
with 1.5A Flash Driver
ABSOLUTE MAXIMUM RATINGS
IN, OUT, NTC to AGND .........................................-0.3V to +6.0V
V DD to AGND.........................................................-0.3V to +4.0V
SCL, SDA, LED_EN, GSMB to AGND ........-0.3V to (V DD + 0.3V)
FLED1, FLED2, INDLED to FGND ............-0.3V to (V OUT + 0.3V)
COMP to AGND ...........................................-0.3V to (V IN + 0.3V)
PGND, FGND to AGND .........................................-0.3V to +0.3V
Continuous Power Dissipation (T A = +70°C)
(derate 17.5mW/°C above +70°C) .............................1410mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Bump Temperature* (soldering) ......................................+260°C
I LX Current (rms) ......................................................................3A
*This device is constructed using a unique set of packaging techniques that impose a limit on the thermal profile the device can be exposed to during board
level solder attach and rework. This limit permits only the use of the solder profiles recommended in the industry-standard specification, JEDEC 020A, para-
graph 7.6, Table 3 for IR/VPR and Convection reflow. Preheating is required. Hand or wave soldering is not allowed.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V IN = 3.6V, V AGND = V PGND = V FGND = 0V, V DD = 1.8V, T A = -40°C to +85°C, unless otherwise noted. Typical values are at
T A = +25°C.) (Note 1)
PARAMETER
IN Operating Voltage
V DD Operating Range
V DD Undervoltage Lockout
(UVLO) Threshold
V DD falling
CONDITIONS
MIN
2.5
1.62
1.25
TYP
1.4
MAX
5.5
3.6
1.55
UNITS
V
V
V
V DD UVLO Hysteresis
50
mV
IN UVLO Threshold
V IN falling
2.15
2.3
2.45
V
IN UVLO Hysteresis
50
mV
IN Standby Supply Current
V SCL = V SDA = V DD , V IN = 5.5V, I 2 C ready
1
μA
V DD Standby Supply Current
(All Outputs Off, I 2 C Enabled)
V SCL = V SDA = V DD = 3.6V, I 2 C ready
4
7
μA
LOGIC INTERFACE
LED_EN, GSMB
1.4
Logic Input-High Voltage
V DD = 1.62V to 3.6V
SCL, SDA
0.7 x
V DD
V
LED_EN, GSMB
0.4
Logic Input-Low Voltage
V DD = 1.62V to 3.6V
SCL, SDA
0.3 x
V DD
V
LED_EN Minimum High Time
(LED_EN is Internally Sampled
by a 1MHz Clock)
1
μs
LED_EN Propagation Delay
From LED_EN going high to rising edge on current
regulator
3
μs
LED_EN and GSMB Pulldown
Resistor
400
800
1600
k
Logic Input Current (SCL, SDA)
V IL = 0V or V IH = 3.6V
T A = +25 ° C
T A = +85 ° C
-1
0.01
0.1
+1
μA
2
Maxim Integrated
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