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MAX34407EWE+T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
General Description
The MAX34407 is a current and voltage monitor that
is specialized for determining power consumption. The
device has a wide dynamic range to allow it to accurately
measure power in systems that consume small to large
amounts of power. The device is configured and moni-
tored with a standard I
2
C/SMBus serial interface. The
unidirectional current sensor offers precision high-side
operation with a low full-scale sense voltage. The device
automatically collects the current-sense and voltage
samples. The samples are then multiplied to obtain a
power value and the power values are then accumulated.
Upon a command from the host, the device transfers the
accumulated power samples as well as the accumulation
count to a set of registers that the host can access. This
transfer occurs without missing a sample and allows the
host to retrieve the data not in real time, but at any time
interval.
Applications
● Tablets
● Ultra Notebooks
● Smartphones
Features and Benets
● Enables Code Optimization to Minimize Power
Consumption in Portable Platforms
• Four Power Monitors with Wide 66dB Dynamic
Range
• Measures Both Current and Voltage
• Low Power Consumption
• Slow Mode for Reduced Power Consumption
• Power-Down Mode
● Minimizes Processor Overhead with Autonomous
Operation
• Per Channel 48-Bit Power Accumulators Capture
17 Minutes of Data at 1024 Samples per Second
• Per Channel 12-Bit Voltage Registers
● High-Integration Solution Minimizes Parts Count,
PCB Space, and BOM Cost
• Wide Current Common-Mode Range of 2.5V to 15V
• Low Full-Scale, Current-Sense Voltage of 100mV
• I
2
C/SMBus Interface
• Temperature Range: -40°C to +85°C
• Small, 2.285mm x 2.185mm Footprint WLP Package
with 16 Bumps at 0.5mm Pitch
● Ease of Development
• Evaluation Kit with Advanced GUI Available
(MAX34407EVKIT#)
• Windows Driver Available
Ordering Information appears at end of data sheet.
19-7431; Rev 0; 11/14
MAX34407 SMBus 4-Channel Wide Dynamic Range
Power Accumulator
V
DD
IN+
AUTOMATIC
SEQUENCING
CHANNEL 1
CHANNEL 2
CHANNEL 3
CHANNEL 4
ADC
(12 BIT)
V
REF
CURRENT
(16 BIT)
VOLTAGE
(12 BIT)
OSCILLATOR
POWER
RESULT
(28 BIT)
POWER
ACCUMULATOR
(48 BIT
)
REGISTERS
SMBUS
INTERFACE
DIGITAL
CONTROL
INTERFACE
POWER
CONTROL
IN-
R
SENSE
CURRENT
FLOW
GND
V
IO
SDA
PDN
SLOW
ADDR
SCL
R
ADDR
1.6V TO
3.6V
2.7V TO 3.6V
X
1/X16
MUX
MAX34407
Typical Application Circuit and Block Diagram
MAX34407 SMBus 4-Channel Wide Dynamic Range
Power Accumulator
www.maximintegrated.com
Maxim Integrated
│
2
IN+ and IN- to GND ............................................... -0.3V to +16V
Differential Input Voltage, IN+ to IN- ...................................±16V
V
DD
or V
IO
to GND .................................................-0.3V to +4V
SDA or SCL to GND ................................................-0.3V to +4V
All Other Pins ..............-0.3V to V
IO
+ 0.3V (not to exceed +4V)
Operating Temperature Range ........................... -40°C to +85°C
Storage Temperature Range ............................ -55°C to +125°C
Soldering Temperature ................................ See the IPC/JEDEC
J-STD-020A Specification
WLP
Junction-to-Ambient Thermal Resistance (θ
JA
) ..........49°C/W
(Note 1)
(V
DD
= 2.7V to 3.6V, V
IO
= 1.6V to 3.6V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V
DD
Operating Range 2.7 3.6 V
V
DD
Average Supply Current
(Note 2)
I
DD
PDN = V
IO
and SLOW = GND 300 450 µA
PDN = V
IO
and SLOW = V
IO
2.4 4 µA
PDN = GND 0.7 2 µA
V
IO
Operating Range 1.6 3.6 V
V
IO
Average Supply Current
(Note 2)
I
IO
0.2 1 µA
Common-Mode Voltage Range
(Note 3)
V
CM
2.5 15 V
IN+ Average Input Bias Current
(Note 3)
PDN = GND or SLOW = V
IO
1
µA
V
CM
= 2.5V and V
SENSE
= 0mV
PDN = V
IO
and SLOW = GND
3.1
V
CM
= 1.5V and V
SENSE
= 0mV
PDN = V
IO
and SLOW = GND
4.8
Per Channel Current and Voltage
Sample Rate
SLOW = GND 1024 sps
SLOW = V
IO
8 sps
Per Channel Power Calculation
Rate
SLOW = GND 1024 sps
SLOW = V
IO
8 sps
Current Sample Resolution V
SENSE
< 4mV 16 Bits
Voltage Sample Resolution 12 Bits
Current-Sense Full Scale 100 mV
Voltage-Sense Full Scale 16 V
Power Measurement Accumulation
Accuracy (1 Sigma Error Range
with > 1000 Accumulations)
(Note 4)
V
SENSE
= 97mV ±0.8
%
V
SENSE
= 10mV ±1
V
SENSE
= 1mV ±1.5
V
SENSE
= 100µV ±8
V
SENSE
= 50µV ±15
MAX34407 SMBus 4-Channel Wide Dynamic Range
Power Accumulator
www.maximintegrated.com
Maxim Integrated
│
3
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
Absolute Maximum Ratings
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.
Package Thermal Characteristics
Electrical Characteristics
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

MAX34407EWE+T

Mfr. #:
Buy MAX34407EWE+T
Manufacturer:
Maxim Integrated
Description:
Current & Power Monitors & Regulators SMBUS 4 CHANNEL WIDE DYNAMIC RANGE
Lifecycle:
New from this manufacturer.
Delivery:
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