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LTC3350 Datasheet(PDF) 6 Page - Linear Technology

Part # LTC3350
Description  High Current Supercapacitor Backup Controller and System Monitor
PDF  46 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3350 Datasheet(HTML) 6 Page - Linear Technology

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LTC3350
6
3350fc
For more information www.linear.com/LTC3350
elecTrical characTerisTics The
l
denotes the specifications which apply over the specified operating
junction temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = VOUT = 12V, VDRVCC = VINTVCC unless otherwise
noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Analog-to-Digital Converter
VRES
Measurement Resolution
16
Bits
VGPI
General Purpose Input Voltage Range
Unbuffered
Buffered
0
0
5
3.5
V
V
IGPI
General Purpose Input Pin Leakage Current
Buffered Input
1
μA
RGPI
GPI Pin Resistance
Buffer Disabled
2.5
MΩ
Measurement System Error
VERR
Measurement Error (Note 5)
VIN = 0V
VIN = 30V
100
1.5
mV
%
VOUTSP = 5V
VOUTSP = 30V
100
1.5
mV
%
VCAP = 0V
VCAP = 10V
100
1.5
mV
%
VGPI = 0V, Unbuffered
VGPI = 3.5V, Unbuffered
2
1
mV
%
VCAP1 = 0V
VCAP1 = 2V
2
1
mV
%
VCAP2 = 0V
VCAP2 = 2V
2
1
mV
%
VCAP3 = 0V
VCAP3 = 2V
2
1
mV
%
VCAP4 = 0V
VCAP4 = 2V
2
1
mV
%
VSNSI = 0mV
VSNSI = 32mV
200
2
µV
%
VSNSC = 0mV
VSNSC = 32mV
200
2
µV
%
CAP1 to CAP4
RSHNT
Shunt Resistance
0.5
Ω
DVCAPMAX
Maximum Capacitor Voltage with Shunts Enabled
2 or More Capacitors in Stack
3.6
V
Programming Pins
VITST
ITST Voltage
RTST = 121Ω
1.185
1.197
1.209
V
I2C/SMBus – SDA, SCL, SMBALERT
IIL,SDA,SCL
Input Leakage Low
–1
1
µA
IIH,SDA,SCL
Input Leakage High
–1
1
µA
VIH
Input High Threshold
1.5
V
VIL
Input Low Threshold
0.8
V
fSCL
SCL Clock Frequency
400
kHz
tLOW
Low Period of SCL Clock
1.3
µs
tHIGH
High Period of SCL Clock
0.6
µs
tBUF
Bus Free Time Between Start and Stop Conditions
1.3
µs
tHD,STA
Hold Time, After (Repeated) Start Condition
0.6
µs
tSU,STA
Setup Time After a Repeated Start Condition
0.6
µs



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