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LTC1923 Datasheet(PDF) 2 Page - Linear Technology

Part # LTC1923
Description  High Efficiency Thermoelectric Cooler Controller
PDF  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1923 Datasheet(HTML) 2 Page - Linear Technology

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LTC1923
1923f
VDD to GND................................................. – 0.3V to 6V
SDSYNC, RSLEW ......................................... – 0.3V to 6V
FB, CNTRL, VTHRM, ILIM, VSET..................... – 0.3V to 6V
CS +, CS –, TEC+, TEC – .................................– 0.3V to 6V
ORDER PART
NUMBER
LTC1923EGN
TJMAX = 125°C, θJA = 120°C/W
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.
VDD = 5V, RSLEW = VDD, SDSYNC = VDD, RT = 10k, CT = 330pF unless otherwise noted.
ELECTRICAL CHARACTERISTICS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
GN PACKAGE
28-LEAD PLASTIC SSOP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
PLLLPF
RSLEW
SDSYNC
CNTRL
EAOUT
FB
AGND
SS
ILIM
VSET
FAULT
VTHRM
H/C
VTEC
RT
CT
VREF
PDRVB
NDRVB
VDD
PGND
NDRVA
PDRVA
CS+
CS–
ITEC
TEC+
TEC–
Consult LTC Marketing for parts specified with wider operating temperature ranges.
(Note 1)
FAULT, H/C ................................................. – 0.3V to 6V
Operating Temperature Range (Note 2) .. – 40
°C to 85°C
Storage Temperature Range ................. – 65
°C to 125°C
Lead Temperature (Soldering, 10 sec).................. 300
°C
ORDER PART
NUMBER
LTC1923EUH
32 31 30 29 28 27 26 25
9
10 11 12 13 14 15 16
17
18
19
20
21
22
23
24
8
7
6
5
4
3
2
1
CNTRL
EAOUT
FB
AGND
NC
SS
ILIM
VSET
PDRVB
NDRVB
VDD
VDD
PGND
NDRVA
PDRVA
CS +
UH PACKAGE
32-LEAD PLASTIC QFN
PIN 1
TOP VIEW
TJMAX = 125°C, θJA = 34°C/W
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Supply
VDD
Operating Supply Voltage
q
2.7
5.5
V
UVLO
Undervoltage Lockout
Low to High Threshold
q
2.6
2.7
V
UVHYST
Hysteresis
High to Low
q
50
130
mV
IDD
Operating Supply Current
No Output Load, Outputs Not Switching
2
4
mA
IDDSHDN
Shutdown IDD
SDSYNC = 0V
10
25
µA
SHDNTH
Shutdown Threshold
Measured at PDRVA, PDRVB
0.3
0.8
1.4
V



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