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MAX4372FESA+T

current sense amplifiers upower high-side current-sense amp

器件类别：电源/电源管理    电源电路   

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
零件包装代码
SOIC
包装说明
SOP, SOP8,.25
针数
8
Reach Compliance Code
compli
ECCN代码
EAR99
Factory Lead Time
6 weeks
可调阈值
NO
模拟集成电路 - 其他类型
POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码
R-PDSO-G8
JESD-609代码
e3
长度
4.9 mm
湿度敏感等级
1
信道数量
1
功能数量
1
端子数量
8
最高工作温度
85 °C
最低工作温度
-40 °C
封装主体材料
PLASTIC/EPOXY
封装代码
SOP
封装等效代码
SOP8,.25
封装形状
RECTANGULAR
封装形式
SMALL OUTLINE
峰值回流温度（摄氏度）
260
电源
2.7/28 V
认证状态
Not Qualified
座面最大高度
1.75 mm
最大供电电流 (Isup)
0.06 mA
最大供电电压 (Vsup)
28 V
最小供电电压 (Vsup)
2.7 V
标称供电电压 (Vsup)
12 V
表面贴装
YES
技术
BICMOS
温度等级
INDUSTRIAL
端子面层
Matte Tin (Sn)
端子形式
GULL WING
端子节距
1.27 mm
端子位置
DUAL
处于峰值回流温度下的最长时间
30
宽度
3.9 mm
Base Number Matches
1
文档预览
AVAILAB
LE
MAX4372T/F/H
Low-Cost, UCSP/SOT23, Micropower, High-Side
Current-Sense Amplifier with Voltage Output
General Description
The MAX4372 low-cost, precision, high-side current-
sense amplifier is available in a tiny, space-saving
SOT23-5-pin package. Offered in three gain versions
(T = 20V/V, F = 50V/V, and H = 100V/V), this device
operates from a single 2.7V to 28V supply and con-
sumes only 30µA. It features a voltage output that elimi-
nates the need for gain-setting resistors and is ideal for
today’s notebook computers, cell phones, and other
systems where battery/DC current monitoring is critical.
High-side current monitoring is especially useful in bat-
tery-powered systems since it does not interfere with
the ground path of the battery charger. The input com-
mon-mode range of 0 to 28V is independent of the sup-
ply voltage and ensures that the current-sense
feedback remains viable even when connected to a
2-cell battery pack in deep discharge.
The user can set the full-scale current reading by
choosing the device (T, F, or H) with the desired volt-
age gain and selecting the appropriate external sense
resistor. This capability offers a high level of integration
and flexibility, resulting in a simple and compact cur-
rent-sense solution. For higher bandwidth applications,
refer to the MAX4173T/F/H data sheet.
o
30µA Supply Current
o
2.7V to 28V Operating Supply
o
0.18% Full-Scale Accuracy
o
0.3mV Input Offset Voltage
o
Low 1.5Ω Output Impedance
o
Three Gain Versions Available
20V/V (MAX4372T)
50V/V (MAX4372F)
100V/V (MAX4372H)
o
High Accuracy
+2V
to +28V Common-Mode
Range, Functional Down to 0V, Independent of
Supply Voltage
o
Available in a Space-Saving 5-Pin SOT23 Package
and 3 x 2 UCSP™ (1mm x 1.5mm) Package
Features
o
Low-Cost, Compact Current-Sense Solution
Ordering Information
PART
MAX4372TEUK-T
MAX4372TEUK+T
MAX4372TESA+T
MAX4372TEBT-T
MAX4372TEBT+T
TEMP RANGE PIN-PACKAGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
5 SOT23-5
8 SO
3 x 2 UCSP
TOP
MARK
ADIU
—
ACX
Applications
Power-Management Systems
General-System/Board-Level Current Monitoring
Notebook Computers
Portable/Battery-Powered Systems
Smart-Battery Packs/Chargers
Cell Phones
Precision-Current Sources
Functional Diagrams
+Denotes
a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Note:
Gain values are as follows: 20V/V for the T version, 50V/V
for the F version, and 100V/V for the H version.
Ordering Information continued at end of datasheet.
Typical Operating Circuit
I
LOAD
GND
RS-
Pin Configurations
TOP VIEW
+
GND
1
5
RS-
A
V
CC
GND
OUT
TOP VIEW
(BUMPS ON BOTTOM)
1
2
3
OUT
2
MAX4372T/F/H
A/D
CONVERTER
MAX4372T/F/H
OUT
R
SENSE
V
SENSE
LOAD/
BATTERY
MAX4372T/F/H
B
RS+
RS-
4
RS+
V
CC
3
V
CC
+2.7V TO +28V
0.1µF
V
CC
RS+
V
IN
0 TO 28V
Pin Configurations appear at end of data sheet.
SOT23-5
Functional Diagrams continued at end of data sheet.
Pin Configurations continued at end of datasheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
UCSP
UCSP is a trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-1548; Rev 5; 5/11
MAX4372T/F/H
Low-Cost, UCSP/SOT23, Micropower, High-Side
Current-Sense Amplifier with Voltage Output
ABSOLUTE MAXIMUM RATINGS
V
CC
, RS+, RS- to GND ...........................................-0.3V to +30V
OUT to GND ...........................................................-0.3V to +15V
Differential Input Voltage (V
RS+
- V
RS-
) ..............................±0.3V
Current into Any Pin..........................................................±10mA
Continuous Power Dissipation (T
A
= +70°C)
5-Pin SOT23 (derate 3.9mW/°C above +70°C)..........312.6mW
8-Pin SO (derate 7.4mW/°C above +70°C)................588.2mW
3 x 2 UCSP (derate 3.4mW/°C above +70°C) ...........273.2mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s). ................................+300°C
Soldering Temperature (reflow). ......................................+300°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 to 28V, V
CC
= 2.7V to 28V, V
SENSE
= 0V, R
LOAD
= 1M , T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 1)
PARAMETER
Operating Voltage Range
(Note 2)
Common-Mode Input Range
(Note 3)
Common-Mode Rejection
Supply Current
Leakage Current
SYMBOL
V
CC
V
CMR
CMR
I
CC
I
RS+
, I
RS-
I
RS+
Input Bias Current
I
RS-
Full-Scale Sense Voltage
(Note 4)
Input Offset Voltage
(Note 5)
Full-Scale Accuracy
(Note 5)
V
SENSE
V
RS+
> 2V
V
RS+
> 2V, V
SENSE
= 5mV
V
CC
= 0V, V
RS+
= 28V
V
RS+
> 2V
V
RS+
≤
2V
V
RS+
> 2V
V
RS+
≤
2V
Gain = 20V/V or 50V/V
Gain = 100V/V
T
A
= +25°C
V
CC
= V
RS+
= 12V
T
A
= T
MIN
to T
MAX
V
CC
= V
RS+
= 12V
MAX4372_ESA
MAX4372_EUK, _EBT
MAX4372_ESA
MAX4372_EUK, _EBT
±0.18
0
-25
0
-50
150
100
0.3
0.3
±0.8
±1.3
±1.1
±1.9
±3
±6
±0.15
±1
±0.15
±7
%
±28
%
mV
CONDITIONS
MIN
2.7
0
85
30
0.05
60
1.2
1
2
2
2
mV
µA
TYP
MAX
28
28
UNITS
V
V
dB
µA
µA
V
OS
V
SENSE
= 100mV, V
CC
= 12V,
V
RS+
= 12V, T
A
= +25°C (Note 7)
V
SENSE
= 100mV, V
CC
= 12V,
V
RS+
= 12V (Note 7)
Total OUT Voltage Error
(Note 6)
V
SENSE
= 100mV, V
CC
= 28V,
V
RS+
= 28V (Note 7)
V
SENSE
= 100mV, V
CC
= 12V,
V
RS+
= 0.1V (Note 7)
V
SENSE
= 6.25mV, V
CC
= 12V,
V
RS+
= 12V (Note 8)
2
Maxim Integrated
MAX4372T/F/H
Low-Cost, UCSP/SOT23, Micropower, High-Side
Current-Sense Amplifier with Voltage Output
ELECTRICAL CHARACTERISTICS (continued)
(V
RS+
= 0 to 28V, V
CC
= 2.7V to 28V, V
SENSE
= 0V, R
LOAD
= 1M , T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 1)
PARAMETER
OUT Low Voltage
(MAX4372T, MAX4372F)
OUT Low Voltage
(MAX4372H)
OUT High Voltage
SYMBOL
V
OL
V
OL
V
CC
- V
OH
CONDITIONS
V
CC
= 2.7V,
V
SENSE
= -10mV
V
RS+
= 28V
V
CC
= 2.7V,
V
SENSE
= -10mV
V
RS+
= 12V
I
OUT
= 10µA
I
OUT
= 100µA
I
OUT
= 10µA
I
OUT
= 100µA
MIN
TYP
2.6
9
2.6
9
0.1
275
200
110
50
20
50
100
±0.25
±2.5
±5.5
20
µs
20
1000
1.5
75
85
0.5
0.1
dB
ms
ms
pF
%
V/V
65
0.25
65
MAX
UNITS
mV
mV
V
V
RS+
= 28V, V
CC
= 2.7V, I
OUT
= -500µA,
V
SENSE
= 250mV
V
SENSE
= 20mV,
gain = 20V/V
-3dB Bandwidth
BW
V
RS
+ = 12V,
V
CC
= 12V,
C
LOAD
= 10pF
V
SENSE
= 20mV,
gain = 50V/V
V
SENSE
= 20mV,
gain = 100V/V
V
SENSE
= 6.25mV
kHz
MAX4372T
Gain
MAX4372F
MAX4372H
Gain Accuracy
T
A
= +25°C
V
SENSE
= 20mV
to 100mV,V
RS+
=12V T
A
= -40°C to +85°C
Gain = 20V/V,
V
CC
= 12V,
V
RS+
= 12V,
C
LOAD
= 10pF
R
OUT
PSR
V
SENSE
= 100mV
V
OUT
= 2V, V
RS+
> 2V
V
CC
= 12V, V
RS+
= 12V,
V
SENSE
= 100mV, C
LOAD
= 10pF
V
CC
= 12V, V
RS+
= 12V, C
LOAD
= 10pF
V
SENSE
= 6.25mV to
100mV
V
SENSE
= 100mV to
6.25mV
OUT Settling Time to 1% of
Final Value
Capacitive-Load Stability
OUT Output Resistance
Power-Supply Rejection
Power-Up Time to 1% of
Final Value
Saturation Recovery Time
(Note 9)
No sustained oscillations
Note 1:
All devices are 100% production tested at T
A
= +25°C. All temperature limits are guaranteed by design.
Note 2:
Guaranteed by PSR test.
Note 3:
Guaranteed by OUT Voltage Error test.
Note 4:
Output voltage is internally clamped not to exceed 12V.
Note 5:
V
OS
is extrapolated from the gain accuracy tests.
Note 6:
Total OUT voltage error is the sum of gain and offset voltage errors.
Note 7:
Measured at I
OUT
= -500µA (R
LOAD
= 4k for gain = 20V/V, R
LOAD
= 10k for gain = 50V/V, R
LOAD
= 20k
100V/V).
Note 8:
6.25mV = 1/16 of 100mV full-scale voltage (C/16).
Note 9:
The device will not reverse phase when overdriven.
for gain =
Maxim Integrated
3
MAX4372T/F/H
Low-Cost, UCSP/SOT23, Micropower, High-Side
Current-Sense Amplifier with Voltage Output
Typical Operating Characteristics
(V
CC
= 12V, V
RS+
= 12V, V
SENSE
= 100mV, T
A
= +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX4372 toc01
SUPPLY CURRENT vs. TEMPERATURE
MAX4372T toc02
SUPPLY CURRENT
vs. COMMON-MODE VOLTAGE
A
V
= +100V/V
31.5
SUPPLY CURRENT (μA)
31.0
30.5
30.0
29.5
A
V
= +20V/V
29.0
28.5
V
SENSE
= 5mV
0
4
8
12
16
20
24
28
A
V
= +50V/V
MAX4372 toc03
35.0
40
35
SUPPLY CURRENT (μA)
30
25
20
15
10
5
32.0
SUPPLY CURRENT (μA)
32.5
A
V
= +100V/V
30.0
A
V
= +50V/V
A
V
= +20V/V
27.5
V
SENSE
= 5mV
25.0
0
4
8
12
16
20
24
28
0
-40
V
SENSE
= 5mV
-15
10
35
60
85
28.0
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
COMMON-MODE VOLTAGE (V)
TOTAL OUTPUT ERROR
vs. SUPPLY VOLTAGE
MAX4372 toc04
TOTAL OUTPUT ERROR vs. V
SENSE
MAX4372T toc05
POWER-SUPPLY REJECTION
vs. FREQUENCY
-45
-50
-55
MAX4372T toc06
0.6
0.4
0.2
OUTPUT ERROR (%)
0
-0.2
-0.4
-0.6
-0.8
-1.0
-1.2
0
5
10
15
20
25
G = +50V/V
G = +20V/V
G = +100V/V
1.5
-40
1.0
OUTPUT ERROR (%)
A
V
= +100V/V
A
V
= +50V/V
PSR (dB)
0.5
-60
-65
-70
-75
0
A
V
= +20V/V
-0.5
-80
-85
30
-1.0
0
50
100
150
V
SENSE
(mV)
200
250
300
-90
100
1k
10k
100k
SUPPLY VOLTAGE (V)
FREQUENCY (Hz)
TOTAL OUTPUT ERROR
vs. COMMON-MODE VOLTAGE
MAX4372T toc07
GAIN ACCURACY vs. TEMPERATURE
-0.1
-0.2
GAIN ACCURACY (%)
-0.3
-0.4
-0.5
-0.6
-0.7
-0.8
-0.9
A
V
= +50V/V
A
V
= +100V/V
A
V
= +20V/V
MAX4372T toc08
TOTAL OUTPUT ERROR vs. TEMPERATURE
0.8
TOTAL OUTPUT ERROR (%)
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
A
V
= +20V/V
A
V
= +100V/V
A
V
= +50V/V
MAX4372T toc09
1.6
1.4
OUTPUT ERROR (%)
1.2
1.0
0.8
0.6
0.4
0.2
0
0
5
G = +20V/V
G = +50V/V
G = +100V/V
0
1.0
10
15
20
25
30
-1.0
-40
-15
10
35
TEMPERATURE (°C)
60
85
-40
-15
10
35
60
85
COMMON-MODE VOLTAGE (V)
TEMPERATURE (°C)
4
Maxim Integrated
MAX4372T/F/H
Low-Cost, UCSP/SOT23, Micropower, High-Side
Current-Sense Amplifier with Voltage Output
Typical Operating Characteristics (continued)
(V
CC
= 12V, V
RS+
= 12V, V
SENSE
= 100mV, T
A
= +25°C, unless otherwise noted.)
MAX4372T
SMALL-SIGNAL TRANSIENT RESPONSE
MAX4372T toc10
MAX4372F
SMALL-SIGNAL TRANSIENT RESPONSE
MAX4372T toc11
MAX4372H
SMALL-SIGNAL TRANSIENT RESPONSE
MAX4372T toc12
30mV
V
SENSE
10mV
V
SENSE
30mV
V
SENSE
30mV
10mV
10mV
600mV
V
OUT
200mV
V
OUT
1.5V
V
OUT
0.5V
3V
1V
20μs/div
20μs/div
20μs/div
MAX4372T
LARGE-SIGNAL TRANSIENT RESPONSE
MAX4372T toc13
MAX4372F
LARGE-SIGNAL TRANSIENT RESPONSE
MAX4372T toc14
V
SENSE
150mV
V
SENSE
150mV
50mV
3V
50mV
7.5V
V
OUT
1V
20μs/div
V
OUT
2.5V
20μs/div
MAX4372H
LARGE-SIGNAL TRANSIENT RESPONSE
MAX4372T toc15
SMALL-SIGNAL GAIN vs. FREQUENCY
2
MAX4372T toc16
3
100mV
1
0
GAIN (dB)
0
10V
-1
-2
-3
-4
-5
-6
0
-7
-8
1k
V
SENSE
= 20mV
10k
100k
G = 100V/V
V
SENSE
G = 50V/V
G = 20V/V
V
OUT
20μs/div
1M
FREQUENCY (Hz)
Maxim Integrated
5
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参数对比
与MAX4372FESA+T相近的元器件有：MAX4372HEUK+T、MAX4372FESA+、MAX4372TEBT+TG45、MAX4372HEBT+T、MAX4372HESA+T、MAX4199EUA+。描述及对比如下：
型号 MAX4372FESA+T MAX4372HEUK+T MAX4372FESA+ MAX4372TEBT+TG45 MAX4372HEBT+T MAX4372HESA+T MAX4199EUA+
描述 current sense amplifiers upower high-side current-sense amp current sense amplifiers upower high-side current-sense amp current sense amplifiers upower high-side current-sense amp current sense amplifiers upower high-side current-sense amp current sense amplifiers upower high-side current-sense amp current sense amplifiers upower high-side current-sense amp special purpose amplifiers max4199eua+
是否Rohs认证 符合 符合 符合 符合 符合 符合 符合
包装说明 SOP, SOP8,.25 LSSOP, TSOP5/6,.11,37 SOP, SOP8,.25 VFBGA, VFBGA, BGA6,2X3,20 SOP, SOP8,.25 TSSOP, TSSOP8,.19
Reach Compliance Code compli compli compli compli compli compli compli
ECCN代码 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
JESD-30 代码 R-PDSO-G8 R-PDSO-G5 R-PDSO-G8 R-PBGA-B6 R-PBGA-B6 R-PDSO-G8 S-PDSO-G8
长度 4.9 mm 2.9 mm 4.9 mm 1.52 mm 1.52 mm 4.9 mm 3 mm
功能数量 1 1 1 1 1 1 1
端子数量 8 5 8 6 6 8 8
最高工作温度 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C
最低工作温度 -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C
封装主体材料 PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
封装代码 SOP LSSOP SOP VFBGA VFBGA SOP TSSOP
封装形状 RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR SQUARE
封装形式 SMALL OUTLINE SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE GRID ARRAY, VERY THIN PROFILE, FINE PITCH GRID ARRAY, VERY THIN PROFILE, FINE PITCH SMALL OUTLINE SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度） 260 260 260 NOT SPECIFIED 260 260 260
座面最大高度 1.75 mm 1.45 mm 1.75 mm 0.67 mm 0.67 mm 1.75 mm 1.1 mm
标称供电电压 (Vsup) 12 V 12 V 12 V 12 V 12 V 12 V 5 V
表面贴装 YES YES YES YES YES YES YES
温度等级 INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
端子形式 GULL WING GULL WING GULL WING BALL BALL GULL WING GULL WING
端子节距 1.27 mm 0.95 mm 1.27 mm 0.5 mm 0.5 mm 1.27 mm 0.65 mm
端子位置 DUAL DUAL DUAL BOTTOM BOTTOM DUAL DUAL
处于峰值回流温度下的最长时间 30 30 30 NOT SPECIFIED 30 30 30
宽度 3.9 mm 1.625 mm 3.9 mm 1 mm 1 mm 3.9 mm 3 mm
是否无铅 不含铅 不含铅 不含铅 - 不含铅 不含铅 不含铅
零件包装代码 SOIC SOIC SOIC - BGA SOIC SOIC
针数 8 5 8 - 6 8 8
Factory Lead Time 6 weeks 6 weeks 6 weeks - 1 week 6 weeks 6 weeks
可调阈值 NO NO NO NO NO NO -
模拟集成电路 - 其他类型 POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT -
JESD-609代码 e3 e3 e3 - - e3 e3
湿度敏感等级 1 1 1 - 1 1 1
信道数量 1 1 1 1 1 1 -
封装等效代码 SOP8,.25 TSOP5/6,.11,37 SOP8,.25 - BGA6,2X3,20 SOP8,.25 TSSOP8,.19
电源 2.7/28 V 2.7/28 V 2.7/28 V - 2.7/28 V 2.7/28 V 3/5 V
认证状态 Not Qualified Not Qualified Not Qualified - Not Qualified Not Qualified Not Qualified
最大供电电流 (Isup) 0.06 mA 0.06 mA 0.06 mA - 0.06 mA 0.06 mA -
最大供电电压 (Vsup) 28 V 28 V 28 V 28 V 28 V 28 V -
最小供电电压 (Vsup) 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V -
技术 BICMOS BICMOS BICMOS BICMOS BICMOS BICMOS -
端子面层 Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) - - Matte Tin (Sn) Matte Tin (Sn)
Base Number Matches 1 1 1 1 1 1 -
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A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DZ
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