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LTC1840IGN 数据表(PDF) 2 Page - Linear Technology

部件名 LTC1840IGN
功能描述  Dual Fan Controller with 2-Wire Interface
PDF  12 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC1840IGN 数据表(HTML) 2 Page - Linear Technology

  LTC1840IGN Datasheet HTML 1Page - Linear Technology LTC1840IGN Datasheet HTML 2Page - Linear Technology LTC1840IGN Datasheet HTML 3Page - Linear Technology LTC1840IGN Datasheet HTML 4Page - Linear Technology LTC1840IGN Datasheet HTML 5Page - Linear Technology LTC1840IGN Datasheet HTML 6Page - Linear Technology LTC1840IGN Datasheet HTML 7Page - Linear Technology LTC1840IGN Datasheet HTML 8Page - Linear Technology LTC1840IGN Datasheet HTML 9Page - Linear Technology Next Button
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background image
LTC1840
2
1840f
TOP VIEW
GN PACKAGE
16-LEAD PLASTIC SSOP
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
SCL
SDA
A1
A0
FAULT
GPIO1
GPIO2
GND
VCC
IDACOUTA
IDACOUTB
BLAST
TACHB
TACHA
GPIO4
GPIO3
VCC to GND .................................................... –0.3 to 6V
A0, A1 ............................................. –0.3 to (VCC + 0.3V)
IDACOUTA, IDACOUTB ............................. –0.3 to (VCC + 0.75V)
All other pins ................................................. –0.3 to 6V
Operating Temperature
LTC1840C ............................................... 0
°C to 70°C
LTC1840I .............................................–40
°C to 85°C
Storage Temperature Range ..................–65
°C to 125°C
Lead Temperature (Soldering, 10 sec).................. 300
°C
ORDER PART
NUMBER
GN PART
MARKING
TJMAX = 125°C, θJA = 110°C/W
Consult LTC marketing for parts specified with wider operating temperature ranges.
1840
1840I
LTC1840CGN
LTC1840IGN
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
(Note 1)
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 3V
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
DACs
n
Resolution
8
Bits
DNL
Differential Nonlinearity
VDACOUT = 1.1V, Guaranteed Monotonic
q
±0.9
LSB
INL
Integral Nonlinearity
VDACOUT = 1.1V
± 4LSB
ZSE
Zero-Scale Error
VDACOUT = 1.1V
–0.2
0.1
2
µA
Output Voltage Rejection
1.1V< VDACOUT < 3.75V
±1LSB
Output Voltage Rejection
VCC = 5.75V, 1.1V < VDACOUT < 6.5V
±2LSB
IDACOUTA(FS),
Full-Scale Current
Sinking
97
103
µA
IDACOUTB(FS)
VDACOUT = 1.1V
q
95
105
µA
Power Supply
VCC
Positive Supply Voltage
q
2.7
5.75
V
ICC
Supply Current
VCC = 3V, A0 and A1 Floating
400
600
µA
VCC = 5V, A0 and A1 Floating
500
750
µA
VUVLO
UVLO/POR Voltage
q
2.1
2.4
2.69
V
VUVHYS
UVLO/POR Voltage Hysteresis
(Note 2)
20
90
160
mV
Oscillator Performance
fOSC
Oscillator Frequency
q
47
50
53
kHz
PSRR
Supply Sensitivity
2.7V < VCC < 5.75V
0.1
0.5
%/V
GPIO Performance
IO
Output Current Sink
VGPIOX = 0.7V, Internal Pull-Down Enabled
q
10
mA
VIL
Digital Input Low Voltage
Internal Pull-Down Disabled
q
0.3VCC
V
VIH
Digital Input High Voltage
Internal Pull-Down Disabled
q
0.7VCC
V
VIHYST
Input Hysteresis
(Note 2)
50
mV
ILEAK
Leakage
Internal Pull-Down Disabled
±1
µA



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