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SC310 PDF даташит

Спецификация SC310 изготовлена ​​​​«Semtech» и имеет функцию, называемую «High-Side Current-Sense Amplifier».

Детали детали

Номер произв SC310
Описание High-Side Current-Sense Amplifier
Производители Semtech
логотип Semtech логотип 

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SC310 Даташит, Описание, Даташиты
SC310
High-Side Current-Sense Amplifier
with Low Impedance Vwwowl.tDaatagSeheeOt4Uu.ctomput
POWER MANAGEMENT
Description
Features
The SC310 is a high-side current sense amplifier ideal for
any application where precision current monitoring is
needed. Possible uses include battery-powered products
such as cellphones and notebooks, as well as industrial
and data acquisition applications. The wide 2.7V to 25V
common mode input range is independent of supply range,
providing complete flexibility in battery sensing applica-
tions.
The Current-Sense Amplifier offers three gain versions,
SC310A (gain 20 V/V), SC310B (gain 50 V/V) and
SC310C (gain 100 V/V). An external shutdown pin
(SHDN) enables turn off for the IC. A buffered output
with low impedance renders the overall gain immune to
load resistance. Output range is from 0V to Vcc - 1.7V.
Other features include tiny SOT-23-6 packaging, very low
supply current, and wide supply voltage range (3V to 25V).
The SC310 is rated for operation over the Industrial Tem-
perature range (-40°C to +125°C).
Three gain versions (20V/V, 50V/V, 100V/V)
available
2.7V to 25V input common mode range
3V to 25V supply voltage range
270 μA supply current
1% typical accuracy
Buffered low impedance voltage output
Industrial temperature range (-40°C to +125°C)
Small, lead-free SOT23-6 Package
Applications
Notebook and Tablet PCs
Data Acquisition
Battery Packs
Charging Applications
Industrial and Embedded Applications
Typical Application Circuit
2.7V to 25V
RSENSE
ILOAD
3V - 25V
0.1uF
VCC OUT
VOUT
Load/
Battery
0.1uF
June 4, 2007
www.semtech.com
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SC310 Даташит, Описание, Даташиты
SC310
POWER MANAGEMENT
Absolute Maximum Ratings
www.DataSheet4U.com
Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters
specified in the Electrical Characteristics section is not implied.
Parameter
Supply Voltage
Differential Input Voltage
Thermal Resistance Junction
Thermal Resistance Junction to Case
Operating Temperature Range
Storage Temperature Range
Junction Temperature Range
Lead Temperature (Soldering) 10s
CS+ Voltage
CS- Voltage
SHDN Voltage
ESD Rating (Human Body Model)
Symbol
VCC
VCS+ - VCS-
θJA
θJC
TA
TSTG
TJ
TLEAD
VCS+
VCS-
VSHDN
VESD
Min Max Units
-0.3 28
V
0.5 V
230 °C/W
81 °C/W
-40 +125
°C
-65 +150
°C
-65 +150
°C
260
-0.3 VCC + 0.3
°C
V
-0.3 VCC + 0.3
V
-0.3 VCC + 0.3
V
2 kV
Electrical Characteristics
VCS+ = 2.7V to 25V, VCC = 3V to 25V, VSENSE = 0, TA = TJ = -40°C to +125°C , unless otherwise specified
Parameter
Symbol
Conditions
Operating Voltage Range
Common-Mode Input Range
Common-Mode Rejection
VCC
VCMR
CMR
0°C TA +125°C
-40°C TA < 0°C
Supply Current
Input Bias Current
Full-Scale Sense Voltage
Total OUT Voltage Error
© 2005 Semtech Corp.
ICC
ICS+
ICS-
VSENSE
VCS+ > 2.7V, VCC = 12V
VCS+ > +2.7V
VCS+ > +2.7V
VSENSE = VCS+ - VCS-
VSENSE= +100mV, VCC = 12V,
VCS+ = 12V, -40°C TA 85°C
VSENSE= +100mV, VCC = 12V,
VCS+ = 12V, TA = 125°C
VSEVNCSSE+==++11020Vm,V,TAVC=C
= 12V,
+25º
VCVS+SE=NSE2=5+V,1-0400m°VC,
VCTCA=
25V,
85°C
2
Min
3
2.7
3
0
Typ
90
0.27
150
1
1
1
1
Max
25
25
25
1
1
150
4.25
Units
V
V
dB
mA
μA
mV
%
4.5
3.25
4.5
www.semtech.com









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SC310 Даташит, Описание, Даташиты
SC310
POWER MANAGEMENT
Electrical Characteristics (Cont.)
www.DataSheet4U.com
VCS+ = 2.7V to 25V, VCC = 3V to 25V, VSENSE = 0, TA = TJ = -40°C to +125°C , unless otherwise specified
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Total OUT Voltage Error
OUT High Voltage
3dB Bandwidth
GAIN
VCC - VOH
BW
AV
VSENSE= +100mV, VCC = 25V,
VCS+ = 25V, TA = 125°C
VSENSE= +6.25mV, VCC =
12V, VCS+ = 12V, -40°C
TA 125°C
-5°C TA +125°C
SC310A, VSENSE = +100mV
SC310B, VSENSE = +100mV
SC310C, VSENSE = +100mV
SC310A
SC310B
1
+/- 7.5
4.75
%
1.7 V
2
1.4 MHz
0.9
20 V/V
50
SC310C
100
Gain Accuracy
VSENSE = +100mV,
SC310A/B/C
4.0 %
OUT Output Resistance (1)
ROUT
VSENSE = +16mV
60 Ω
Power-Supply Rejection
OUT Settling Time to 1% of
the Final Value
PSRR
VVSCESN+SE>=
16mV
+2.7V
VCC = +12V
VCS+ = +12V
C =LOAD 5pF
VSENSE=
+6.25mV
to
+100mV
60
70
2
dB
μS
VSENSE=
+100mV
to
+6.25mV
2
Power-Up Time to 1% of the
Final Value (2)
Input bias current for SHDN
VSHDN Threshold (device on)
VSHDN Threshold (device off)
Supply Current for SHDN
ISHDN
VSHDN_TH_ON
VSHDN_TH_OFF
ICC
VSENSE= +100 mV,
C =LOAD 5pF,VCC = +12V
VCS+ = +12V
VSHDN = +5V
3V Vcc 25V
3V Vcc 25V
Vcc = 12V, VSHDN = +5V
2
50 μS
7 μA
350 mV
V
11 μA
Note (1): SC310 has a low impedence output. However the maximum output drive capability is limited to 500uA
Note (2): Defined with respect to Shutdown signal. Time taken for output to go high as VSHDN switches from 5V to 0V
© 2005 Semtech Corp.
3
www.semtech.com










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