MAX8834Y(2009) 데이터 시트보기 (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
ABSOLUTE MAXIMUM RATINGS
IN, OUT, NTC to AGND .........................................-0.3V to +6.0V
VDD to AGND.........................................................-0.3V to +4.0V
SCL, SDA, LED_EN, GSMB to AGND ........-0.3V to (VDD + 0.3V)
FLED1, FLED2, INDLED to FGND ............-0.3V to (VOUT + 0.3V)
COMP to AGND ...........................................-0.3V to (VIN + 0.3V)
PGND, FGND to AGND .........................................-0.3V to +0.3V
ILX Current (rms) ......................................................................3A
Continuous Power Dissipation (TA = +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
*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
(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
MIN TYP MAX UNITS
IN Operating Voltage
VDD Operating Range
2.5
5.5
V
1.62
3.6
V
VDD Undervoltage Lockout
(UVLO) Threshold
VDD falling
1.25
1.4
1.55
V
VDD UVLO Hysteresis
IN UVLO Threshold
IN UVLO Hysteresis
VIN falling
50
mV
2.15
2.3
2.45
V
50
mV
IN Standby Supply Current
VSCL = VSDA = VDD, VIN = 5.5V, I2C ready
1
μA
VDD Standby Supply Current
(All Outputs Off, I2C Enabled)
VSCL = VSDA = VDD = 3.6V, I2C ready
4
7
μA
LOGIC INTERFACE
Logic Input-High Voltage
Logic Input-Low Voltage
VDD = 1.62V to 3.6V
VDD = 1.62V to 3.6V
LED_EN, GSMB
SCL, SDA
LED_EN, GSMB
SCL, SDA
1.4
0.7 x
VDD
V
0.4
0.3 x
V
VDD
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
Logic Input Current (SCL, SDA)
VIL = 0V or VIH = 3.6V
TA = +25°C
TA = +85°C
400
800 1600
k
-1
0.01
+1
μA
0.1
2 _______________________________________________________________________________________
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