參數(shù)資料
型號: MAX9937EVKIT+
廠商: Maxim Integrated Products
文件頁數(shù): 1/11頁
文件大小: 0K
描述: EVAL KIT FOR MAX9937
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 1
每 IC 通道數(shù): 1 - 單
放大器類型: 電流檢測
輸出類型: 單端
-3db帶寬: 350kHz
電流 - 輸出 / 通道: 22mA
工作溫度: -40°C ~ 125°C
電流供應(yīng)(主 IC): 20µA
電壓 - 電源,單路/雙路(±): 2.7 V ~ 5.5 V
板類型: 完全填充
已供物品:
已用 IC / 零件: MAX9937
General Description
The MAX9937 is a tiny automotive grade current-sense
amplifier designed for unidirectional high-side current-
sense applications. This device addresses major areas
of concern for automotive applications including load-
dump protection up to +40V, reverse-battery protec-
tion, and filtering for EMI and transient performance.
The MAX9937 also features a low input offset voltage of
±1.2mV (max) at +25°C with a low temperature drift of
just 1V/°C (typ).
The MAX9937 is available in a 5-pin SC70 package and
is rated over the -40°C to +125°C temperature range.
Applications
Automotive Battery Current Sense
Fuse Box Current Sense
ECU Current Monitor
Features
Reverse Battery and Load-Dump Protection
-20V to +40V
+4V to +28V Input Common-Mode Range
Flexible EMI Filtering
Low VOS: ±1.2mV (max)
Low VOS Drift: 1V/°C (typ)
20A Supply Current
350kHz, 3dB Small Signal Bandwidth
MAX9937
Automotive Current-Sense Amplifier
with Reverse-Battery Protection
________________________________________________________________
Maxim Integrated Products
1
19-4233; Rev 0; 8/08
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
LOAD
MICROCONTROLLER
ADC
RSENSE
GND
OUT
VCC
RS+
RS-
RRSN
499
Ω
RRSP
499
Ω
ROUT
10k
Ω
5V
RSP
RSN
BIAS
BLOCK
VBAT = 4V
TO 28V
MAX9937
GAIN = VOUT
VSENSE
= ROUT
RRSP
Typical Application Circuit
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX9937AXK+T
-40°C to +125°C
5 SC70
+ATB
+
Denotes a lead-free/RoHS-compliant package.
T = Tape and reel.
Pin Configuration appears at end of data sheet.
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