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MAX9929FABT+T

Current Sense Amplifiers .1-28V uPower Current Sense Amp

器件类别：模拟混合信号IC    放大器电路   

厂商名称：Maxim(美信半导体)

厂商官网：https://www.maximintegrated.com/en.html

器件标准：

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参数 预览 参数对比
器件参数
参数名称
属性值
是否无铅
不含铅
是否Rohs认证
符合
厂商名称
Maxim(美信半导体)
零件包装代码
BGA
包装说明
VFBGA, BGA6,2X3,20
针数
6
Reach Compliance Code
compliant
ECCN代码
EAR99
Factory Lead Time
21 weeks
放大器类型
OPERATIONAL AMPLIFIER
最大平均偏置电流 (IIB)
6 µA
标称共模抑制比
72 dB
最大输入失调电压
3000 µV
JESD-30 代码
R-PBGA-B6
长度
1.52 mm
湿度敏感等级
1
功能数量
1
端子数量
6
最高工作温度
125 °C
最低工作温度
-40 °C
封装主体材料
PLASTIC/EPOXY
封装代码
VFBGA
封装等效代码
BGA6,2X3,20
封装形状
RECTANGULAR
封装形式
GRID ARRAY, VERY THIN PROFILE, FINE PITCH
峰值回流温度（摄氏度）
NOT SPECIFIED
电源
3.3 V
认证状态
Not Qualified
座面最大高度
0.69 mm
最大压摆率
0.2 mA
供电电压上限
6 V
标称供电电压 (Vsup)
3.3 V
表面贴装
YES
技术
BICMOS
温度等级
AUTOMOTIVE
端子形式
BALL
端子节距
0.5 mm
端子位置
BOTTOM
处于峰值回流温度下的最长时间
NOT SPECIFIED
宽度
1 mm
文档预览
EVALUATION KIT AVAILABLE
MAX9928/MAX9929
-0.1V to +28V Input Range, Micropower,
Uni-/Bidirectional, Current-Sense Amplifiers
General Description
The MAX9928/MAX9929 low-cost, uni-/bidirectional,
high-side, current-sense amplifiers are ideal for monitor-
ing battery charge and discharge currents in notebooks,
cell phones, and other portable equipment. These devices
feature a wide -0.1V to +28V input common-mode voltage
range, low 20μA supply current with V
OS
less than 0.4mV,
and a gain accuracy better than 1.0%. The input common-
mode range is independent of the supply voltage, ensur-
ing that the current-sense information remains accurate
even when the measurement rail is shorted to ground.
The MAX9928F features a current output with a transcon-
ductance ratio of 5μA/mV. An external resistor converts
the output current to a voltage, allowing adjustable gain
so that the input sense voltage can be matched to the
maximum ADC input swing. The MAX9929F has a volt-
age output and integrates a 10kΩ output resistor for a
fixed voltage gain of 50V/V.
A digital SIGN output indicates direction of current flow, so
the user can utilize the full ADC input range for measuring
both charging and discharging currents.
The MAX9928/MAX9929 are fully specified over the
-40°C to +125°C automotive temperature range, and
available in 6-bump UCSP™ (1mm x 1.5mm) and 8-pin
μMAX
®
packages. The UCSP package is bump-to-bump
compatible with the MAX4372_EBT.
UCSP is a trademark and μMAX is a registered trademark of
Maxim Integrated Products, Inc.
Features
● Wide -0.1V to +28V Common-Mode Range,
Independent of Supply Voltage
●
2.5V to 5.5V Operating Supply Voltage
● 20μA Quiescent Supply Current
● 0.4mV (max) Input Offset Voltage
● Gain Accuracy Better than 1% (max)
● SIGN Output Indicates Current Polarity
●
Transconductance and Gain Versions Available
• 5μA/mV (MAX9928F)
• 50V/V (MAX9929F)
● Pin Compatible with the MAX4372 in UCSP
● Available in Ultra-Small, 3x2 UCSP
(1mm x 1.5mm) and 8-Pin μMAX Packages
Applications
● Monitoring Charge/Discharge Currents in Portable/
Battery-Powered Systems
● Notebook Computers
● General-System/Board-Level Current Monitoring
● Smart-Battery Packs/Chargers
● Precision Current Sources
● Smart Cell Phones
● Super Capacitor Charge/Discharge
Pin Configurations and Typical Operating Circuit appear at
end of data sheet.
Ordering Information
PART
MAX9928FAUA+
MAX9928FABT+T
MAX9929FAUA+
MAX9929FABT+T
OUTPUT TYPE
Current
Current
Voltage
Voltage
GAIN
G
m
= 5μA/mV
G
m
= 5μA/mV
AV = 50V/V
AV = 50V/V
PIN-PACKAGE
8 μMAX
3x2 UCSP
8 μMAX
3x2 UCSP
TOP MARK
—
+AAF
—
+ADI
Note:
All devices are specified over the -40°C to +125°C operating temperature range.
+Denotes
a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
19-4251; Rev 4; 9/14
MAX9928/MAX9929
-0.1V to +28V Input Range, Micropower,
Uni-/Bidirectional, Current-Sense Amplifiers
Absolute Maximum Ratings
V
CC
, SIGN to GND
.................................................-0.3V to +6V
RS+, RS- to GND
..................................................-0.3V to +30V
OUT to GND
.............................................
-0.3V to (V
CC
+ 0.3V)
Differential Input Voltage (V
RS+
- V
RS-
)
..............................±30V
OUT, SIGN Short Circuit to V
CC
or GND
..................Continuous
Current into Any Pin
.........................................................±20mA
Continuous Power Dissipation (T
A
= +70°C)
6-Bump 1mm x 1.5mm UCSP
(derate 3.9mW/°C above +70°C)
..........................308.3mW
8-Pin μMAX (derate 4.8mW/°C above +70°C)
............388mW
Operating Temperature Range
.........................
-40°C to +125°C
Storage Temperature Range
............................
-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s)
.................................
+300°C
Soldering Temperature (reflow)
.......................................+260°C
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
RS+
= -0.1V to +28V, V
CC
= 3.3V, V
SENSE
= (V
RS+
- V
RS-
) = 0V, R
OUT
= 10kΩ for MAX9928F, T
A
= -40°C to +125°C, unless oth-
erwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
T
A
= +25°C
T
A
= -40°C to +125°C
T
A
= +25°C
T
A
= -40°C to +125°C
-0.1
T
A
= +25°C
T
A
= -40°C to +125°C
T
A
= +25°C
T
A
= -40°C to +125°C
93
87
60
54
±50
50
T
A
= +25°C
T
A
= +25°C
T
A
= -40°C to +125°C
5
T
A
= +25°C
T
A
= +25°C
±0.3
±0.3
0
-80
±0.05
±0.2
0.05
1.6
±1.0
±2.5
±1.0
±2.8
6
+6
±1
±2
1.0
µA
µA
µA
%
T
A
= -40°C to +125°C
T
A
= -40°C to +125°C
±0.3
±0.3
±1.0
±2.5
±1.0
±2.8
µA/mV
%
T
A
= -40°C to +125°C
mV
V/V
72
104
dB
±0.6
MIN
TYP
±0.1
MAX
±0.4
±0.8
±1.0
±3.0
+28
V
mV
UNITS
AMPLIFIER DC ELECTRICAL CHARACTERISTICS
V
RS+
= 3.6V
Input Offset Voltage (Note 2)
V
OS
V
RS+
= -0.1V
Common-Mode Input Range
V
CMR
(Note 3)
2V ≤ V
RS+
≤ 28V
Common-Mode Rejection Ratio
CMRR
-0.1V ≤ V
RS+
≤
+2V
MAX992_F
MAX9929F
MAX9929F,
V
RS+
= 3.6V
MAX9929F,
V
RS+
= -0.1V
G
M
MAX9928F
MAX9928F,
V
RS+
= 3.6V
MAX9928F,
V
RS+
= -0.1V
I
RS+
, I
RS-
I
OS
I
RS+
, I
RS-
2V ≤ V
RS+
≤ 28V
-0.1V ≤ V
RS+
≤ +2V
2V ≤ V
RS+
≤ 28V
-0.1V ≤ V
RS+
≤ +2V
V
CC
= 0V, V
RS+
= V
RS-
= 28V (Note 5)
Full-Scale Sense Voltage (Note 2)
Gain (Note 2)
V
SENSE
A
V
Gain Accuracy (Notes 2, 6)
Transconductance (Note 2)
Transconductance Accuracy
(Note 2)
Input Bias Current (Note 4)
Input Offset Bias Current (Note 4)
Input Leakage Current
www.maximintegrated.com
Maxim Integrated │
2
MAX9928/MAX9929
-0.1V to +28V Input Range, Micropower,
Uni-/Bidirectional, Current-Sense Amplifiers
Electrical Characteristics (continued)
(V
RS+
= -0.1V to +28V, V
CC
= 3.3V, V
SENSE
= (V
RS+
- V
RS-
) = 0V, R
OUT
= 10kΩ for MAX9928F, T
A
= -40°C to +125°C, unless oth-
erwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
Output Resistance
SYMBOL
R
OUT
MAX9928F
MAX9929F
MAX9928F, R
OUT
= 10kΩ
MAX9929F
MAX9929F
MAX9928F
T
A
= +25°C
T
A
= -40°C to +125°C
T
A
= +25°C
T
A
= -40°C to +125°C
T
A
= +25°C
T
A
= -40°C to +125°C
T
A
= +25°C
T
A
= -40°C to +125°C
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
-0.1
2V ≤ V
RS+
≤ 28V
-0.1V ≤ V
RS+
≤ +2V
I
SINK
= 100µA
102
74
0.03
(V
CC
-
0.01)
1
0.1
(V
CC
-
0.04)
-1.6
-2.15
-2.5
-4.6
-1.8
-1.8
0.6
+28
-1.2
-1.2
0.025
6.4
CONDITIONS
MIN
TYP
5
10
(V
CC
-
0.1)
(V
CC
-
0.1)
0.25
13.6
(V
CC
-
0.45)
(V
CC
-
0.45)
2.0
15
0.2
1.5
-0.5
-0.15
+0.25
+2.3
mV
mV
V
dB
V
V
MΩ
mV
MAX
UNITS
MΩ
kΩ
V
Output High Voltage (Note 6)
V
OH
Minimum Output Voltage (Note 7)
Minimum Output Current (Note 7)
V
OL
I
OL
mV
µA
SIGN COMPARATOR DC ELECTRICAL CHARACTERISTICS
Discharge to Charge Trip Point
(Note 8)
V
RS+
= 3.6V
V
TDC
V
RS+
= -0.1V
V
TCD
V
HYS
V
CMR
CMRR
V
OL
V
OH
R
PULL-UP
T
A
= +25°C
T
A
= -40°C to +125°C
V
RS+
= 3.6V
V
RS+
= -0.1V
V
RS+
= 3.6V
V
RS+
= -0.1V
2V ≤ V
RS+
≤ 28V
-0.1V ≤ V
RS+
< +2V
2.5
2.8
72
66
90
86
90
86
20
115
30
200
V
RS+
= 3.6V
V
RS+
= -0.1V
V
RS+
= 3.6V, -0.1V
Charge to Discharge Trip Point
(Note 8)
Hysteresis Width
Common-Mode Input Range
(Note 9)
Common-Mode Rejection Ratio
(Note 9)
Output Low Voltage
Output High Voltage
Internal Pullup Resistor
POWER SUPPLY
Supply Voltage Range (Note 10)
Amplifier Power-Supply Rejection
Ratio (Note 10)
Comparator Power-Supply
Rejection Ratio
Quiescent Supply Current
V
CC
PSRR
A
PSRR
C
I
CC
5.5
5.5
V
dB
dB
µA
www.maximintegrated.com
Maxim Integrated │
3
MAX9928/MAX9929
-0.1V to +28V Input Range, Micropower,
Uni-/Bidirectional, Current-Sense Amplifiers
Electrical Characteristics (continued)
(V
RS+
= -0.1V to +28V, V
CC
= 3.3V, V
SENSE
= (V
RS+
- V
RS-
) = 0V, R
OUT
= 10kΩ for MAX9928F, T
A
= -40°C to +125°C, unless oth-
erwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
-3dB Bandwidth
SYMBOL
BW
CONDITIONS
MAX992_F, V
SENSE
= 50mV
V
RS+
= 3.6V,
C
LOAD
= 10pF,
R
OUT
= 10kΩ for
MAX9928F
Overdrive = 1mV
Overdrive = 5mV
Overdrive = 1mV
Overdrive = 5mV
V
SENSE
= 50mV for MAX992_F,
V
RS+
= 3.6V, C
LOAD
= 10pF
100mV ≤ V
SENSE
P 50mV for MAX992_F,
V
RS+
= 3.6V, C
LOAD
= 10pF
MAX992_F, V
SENSE
=
5mV to 50mV step
MAX992_F, V
SENSE
=
50mV to 5mV step
MIN
TYP
150
6
µs
15
80
30
50
13
50
4
µs
µs
µs
ms
MAX
UNITS
kHz
AC ELECTRICAL CHARACTERISTICS
OUT Settling to 1% of Final Value
tSET
SIGN Comparator Propagation
Delay (Low to High)
SIGN Comparator Propagation
Delay (High to Low)
Power-Up Time to 1% of Final
Value
Saturation Recovery Time
Note 1:
Note 2:
t
PROP_LH
t
PROP_HL
Note
Note
Note
Note
Note
Note
Note
Note
All devices are 100% production tested at T
A
= +25°C. All temperature limits are guaranteed by design.
V
OS
is extrapolated from two point transconductance and gain accuracy tests. Measurements are made at V
SENSE
= +5mV
and V
SENSE
= +50mV for MAX992_F. These measurements are also used to test the full-scale sense voltage, transcon-
ductance, and gain. These V
OS
specifications are for the trimmed direction only (V
RS+
> V
RS-
). For current flowing in the
opposite direction (V
RS-
> V
RS+
), V
OS
is ±1mV (max) at +25°C and ±1.8mV (max) over temperature, when V
RS+
is at 3.6V.
See the
Detailed Description
for more information.
3:
Guaranteed by common-mode rejection ratio. Extrapolated V
OS
as described in Note 2 is used to calculate common-mode
rejection ratio.
4:
Includes input bias current of SIGN comparator.
5:
Leakage in to RS+ or RS- when V
CC
= 0V. Includes input leakage current of SIGN comparator. This specification does not
add to the bias current.
6:
Output voltage should be 650mV below V
CC
to achieve full accuracy.
7:
I
OL
is the minimum output current in the V
SENSE
- I
OUT
transfer characteristics. V
OL
is the minimum output voltage in the
V
SENSE
- V
OUT
transfer characteristic.
8:
V
SENSE
voltage required to switch comparator.
9:
Discharge to charge trip point is functionally tested at V
CM
= -0.1V, +3.6V, and +28V.
10:
Guaranteed by PSRR test. Extrapolated V
OS
as described in Note 2 is used to calculate the power-supply rejection ratio.
V
SENSE
has to be such that the output voltage is 650mV below V
CC
to achieve full accuracy.
www.maximintegrated.com
Maxim Integrated │
4
MAX9928/MAX9929
-0.1V to +28V Input Range, Micropower,
Uni-/Bidirectional, Current-Sense Amplifiers
Typical Operating Characteristics
V
OS
HISTOGRAM
MAX9928 toc01
(V
CC
= 3.3V, V
RS+
= 12V, T
A
= +25°C, unless otherwise noted.)
GAIN ACCURACY
HISTOGRAM
MAX9928 toc02
40
35
FREQUENCY (%)
30
25
20
15
10
5
0
A
V
= 50V/V
A
V
= 50V/V
25
FREQUENCY (%)
20
15
10
5
0
1.5
OFFSET VOLTAGE (mV)
1.0
0.5
0
-0.5
-1.0
-1.5
-0.40 -0.30 -0.20 -0.10 0 0.10 0.20 0.30 0.40
V
OS
(mV)
-1.0 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1.0
GAIN ACCURACY (%)
-2.0
-1
0
1
2
3
28
COMMON-MODE VOLTAGE (V)
MAX9928 toc04
MAX9928 toc05
0.8
OFFSET VOLTAGE (mV)
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
V
CM
= 3.6V
V
SENSE
= 0V
V
RS+
= 0V
125
SUPPLY CURRENT (µA)
100
75
50
25
0
SUPPLY CURRENT (µA)
120
90
60
30
0
V
CC
= 2.5V
V
CC
= 5.5V
V
RS+
= 3.6V
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
2.5
3.0
3.5
4.0
4.5
5.0
5.5
-0.5
0
0.5
1.0
1.5
2.0
28
SUPPLY VOLTAGE (V)
COMMON-MODE VOLTAGE (V)
SUPPLY CURRENT
vs. TEMPERATURE
MAX9928 toc07
V
SENSE
= 0V
V
RS+
= 0V
100
75
50
25
0
V
RS+
= 3.6V
INPUT BIAS CURRENT (µA)
125
SUPPLY CURRENT (µA)
0
-10
-20
-30
-40
-50
-60
-70
-50
-25
0
25
50
75
100
125
-80
TEMPERATURE (°C)
-2 -0.1 0
2
4
6
8
10
28
COMMON-MODE VOLTAGE (V)
www.maximintegrated.com
Maxim Integrated │
5
MAX9928 toc08
150
INPUT BIAS CURRENT
vs. COMMON-MODE VOLTAGE
10
MAX9928 toc06
1.0
OFFSET VOLTAGE vs. TEMPERATURE
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
150
150
SUPPLY CURRENT
vs. COMMON-MODE VOLTAGE
MAX9928 toc03
45
30
2.0
OFFSET VOLTAGE
vs. COMMON-MODE VOLTAGE
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参数对比
与MAX9929FABT+T相近的元器件有：MAX9929FABT+TG45、MAX9929FAUA+。描述及对比如下：
型号 MAX9929FABT+T MAX9929FABT+TG45 MAX9929FAUA+
描述 Current Sense Amplifiers .1-28V uPower Current Sense Amp Current Sense Amplifiers -0.1V to +28V Input Range, Micropower, Uni-/Bidirectional, Current-Sense Amplifiers Current Sense Amplifiers .1-28V uPower Current Sense Amp
是否Rohs认证 符合 符合 符合
厂商名称 Maxim(美信半导体) Maxim(美信半导体) Maxim(美信半导体)
包装说明 VFBGA, BGA6,2X3,20 VFBGA, ROHS COMPLIANT, MO-187AA, USOP-8
Reach Compliance Code compliant compliant compliant
ECCN代码 EAR99 EAR99 EAR99
Factory Lead Time 21 weeks 21 weeks 16 weeks
放大器类型 OPERATIONAL AMPLIFIER OPERATIONAL AMPLIFIER OPERATIONAL AMPLIFIER
最大平均偏置电流 (IIB) 6 µA 6 µA 6 µA
标称共模抑制比 72 dB 104 dB 72 dB
最大输入失调电压 3000 µV 3000 µV 3000 µV
JESD-30 代码 R-PBGA-B6 R-PBGA-B6 S-PDSO-G8
长度 1.52 mm 1.52 mm 3 mm
功能数量 1 1 1
端子数量 6 6 8
最高工作温度 125 °C 125 °C 125 °C
最低工作温度 -40 °C -40 °C -40 °C
封装主体材料 PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
封装代码 VFBGA VFBGA TSSOP
封装形状 RECTANGULAR RECTANGULAR SQUARE
封装形式 GRID ARRAY, VERY THIN PROFILE, FINE PITCH GRID ARRAY, VERY THIN PROFILE, FINE PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度） NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
座面最大高度 0.69 mm 0.67 mm 1.1 mm
供电电压上限 6 V 6 V 6 V
标称供电电压 (Vsup) 3.3 V 3.3 V 3.3 V
表面贴装 YES YES YES
技术 BICMOS BICMOS BICMOS
温度等级 AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE
端子形式 BALL BALL GULL WING
端子节距 0.5 mm 0.5 mm 0.65 mm
端子位置 BOTTOM BOTTOM DUAL
处于峰值回流温度下的最长时间 NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
宽度 1 mm 1 mm 3 mm
是否无铅 不含铅 - 不含铅
零件包装代码 BGA - TSSOP
针数 6 - 8
湿度敏感等级 1 - 1
封装等效代码 BGA6,2X3,20 - TSSOP8,.19
电源 3.3 V - 3.3 V
认证状态 Not Qualified - Not Qualified
最大压摆率 0.2 mA - 0.2 mA
数字信号的载波传输
数字信号的载波传输 数字信号处理之数字信号的载波传输，介绍了载波传输的方式 数字信号的载波传输 ...
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