LTC2915C/LTC2916C ............................... 0°C to 70°C
LTC2915I/LTC2916I.............................. –40°C to 85°C
LTC2915H/LTC2916H ......................... –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
TS8 Lead Temperature (Soldering, 10 sec) ........... 300°C
PIN CONFIGURATION
TOP VIEW
TOP VIEW
VM 1
SEL1 2
TOL/MR 3
GND 4
8 V
CC
7 SEL2
6 RT
5
RST
GND 1
TOL/MR 2
SEL1 3
VM 4
9
8
7
6
5
RST
RT
SEL2
V
CC
TS8 PACKAGE
8-LEAD PLASTIC TSOT-23
TOL FOR LTC2915
MR
FOR LTC2916
T
JMAX
= 150°C,
θ
JA
= 250°C/W
DDB PACKAGE
8-LEAD (3mm 2mm) PLASTIC DFN
TOL FOR LTC2915
MR
FOR LTC2916
T
JMAX
= 150°C,
θ
JA
= 76°C/W
EXPOSED PAD (PIN 9) PCB GND CONNECTION OPTIONAL
ORDER INFORMATION
LEAD FREE FINISH
LTC2915CTS8-1#PBF
LTC2915ITS8-1#PBF
LTC2915HTS8-1#PBF
LTC2915CDDB-1#PBF
LTC2915IDDB-1#PBF
LTC2915HDDB-1#PBF
LEAD FREE FINISH
LTC2916CTS8-1#PBF
LTC2916ITS8-1#PBF
LTC2916HTS8-1#PBF
LTC2916CDDB-1#PBF
LTC2916IDDB-1#PBF
LTC2916HDDB-1#PBF
TAPE AND REEL
LTC2915CTS8-1#TRPBF
LTC2915ITS8-1#TRPBF
LTC2915HTS8-1#TRPBF
LTC2915CDDB-1#TRPBF
LTC2915IDDB-1#TRPBF
LTC2915HDDB-1#TRPBF
TAPE AND REEL
LTC2916CTS8-1#TRPBF
LTC2916ITS8-1#TRPBF
LTC2916HTS8-1#TRPBF
LTC2916CDDB-1#TRPBF
LTC2916IDDB-1#TRPBF
LTC2916HDDB-1#TRPBF
PART MARKING*
LTCVQ
LTCVQ
LTCVQ
LCVR
LCVR
LCVR
PART MARKING*
LTDCW
LTDCW
LTDCW
LDCX
LDCX
LDCX
PACKAGE DESCRIPTION
8-Lead TSOT-23
8-Lead TSOT-23
8-Lead TSOT-23
8-Lead (3mm
×
2mm) Plastic DFN
8-Lead (3mm
×
2mm) Plastic DFN
8-Lead (3mm
×
2mm) Plastic DFN
PACKAGE DESCRIPTION
8-Lead TSOT-23
8-Lead TSOT-23
8-Lead TSOT-23
8-Lead (3mm
×
2mm) Plastic DFN
8-Lead (3mm
×
2mm) Plastic DFN
8-Lead (3mm
×
2mm) Plastic DFN
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/
29156fa
2
LTC2915/LTC2916
ELECTRICAL CHARACTERISTICS
SYMBOL
V
CC(MIN)
V
CC(UVLO)
V
CC(SHUNT)
I
CC
PARAMETER
Supply Undervoltage Lockout
Shunt Regulation Voltage
V
CC
Pin Current
I
VCC
= 0.5mA
SEL1, SEL2, TOL,
MR
= Open
SEL1, SEL2, TOL = GND (LTC2915)
MR
= V
CC
(LTC2916)
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 2.5V, unless otherwise noted. (Note 2)
CONDITIONS
l
l
l
l
l
MIN
0.8
TYP
MAX
1.5
UNITS
V
V
V
μA
μA
Supply Voltage for Guaranteed
RST
Low
RST
Driven Low
5.7
6.2
30
45
7.0
50
80
Monitor Input (VM)
V
MT120
12V, 5% Reset Threshold
12V, 10% Reset Threshold
12V, 15% Reset Threshold
5V, 5% Reset Threshold
5V, 10% Reset Threshold
5V, 15% Reset Threshold
3.3V, 5% Reset Threshold
3.3V, 10% Reset Threshold
3.3V, 15% Reset Threshold
2.5V, 5% Reset Threshold
2.5V, 10% Reset Threshold
2.5V, 15% Reset Threshold
1.8V, 5% Reset Threshold
1.8V, 10% Reset Threshold
1.8V, 15% Reset Threshold
1.5V, 5% Reset Threshold
1.5V, 10% Reset Threshold
1.5V, 15% Reset Threshold
1.2V, 5% Reset Threshold
1.2V, 10% Reset Threshold
1.2V, 15% Reset Threshold
1V, 5% Reset Threshold
1V, 10% Reset Threshold
1V, 15% Reset Threshold
ADJ (0.5V), 5% Reset Threshold
ADJ (0.5V), 10% Reset Threshold
ADJ (0.5V), 15% Reset Threshold
VM Input Impedance (Note 4)
ADJ Input Current
Low Level Input Voltage
High Level Input Voltage
Pin Voltage when Open
Allowable Leakage in Open State
Pin Input Current
V
TPIN
= 0V, V
CC
I
TPIN
= 0μA
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
11.04
10.44
9.84
4.600
4.350
4.100
3.036
2.871
2.706
2.300
2.175
2.050
1.656
1.566
1.476
1.380
1.305
1.230
1.104
1.044
0.984
0.920
0.870
0.820
460.0
435.0
410.0
0.5
11.22
10.62
10.02
4.675
4.425
4.175
3.086
2.921
2.756
2.338
2.213
2.088
1.683
1.593
1.503
1.403
1.328
1.253
1.122
1.062
1.002
0.935
0.885
0.835
467.5
442.5
417.5
11.40
10.80
10.20
4.750
4.500
4.250
3.135
2.970
2.805
2.375
2.250
2.125
1.710
1.620
1.530
1.425
1.350
1.275
1.140
1.080
1.020
0.950
0.900
0.850
475.0
450.0
425.0
8
±15
0.5
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
mV
mV
mV
MΩ
nA
V
V
V
V
MT50
V
MT33
V
MT25
V
MT18
V
MT15
V
MT12
V
MT10
V
MTADJ
R
VM
I
VM(ADJ)
V
TPIN,LOW
V
TPIN,HIGH
V
TPIN,Z
I
TPIN,Z
I
TPIN,H/L
Fixed Threshold Modes
VM = 0.5V
l
l
l
l
Three-State Inputs (SEL1, SEL2), (TOL, LTC2915)
1.4
0.9
±5
±20
μA
μA
29156fa
3
LTC2915/LTC2916
ELECTRICAL CHARACTERISTICS
SYMBOL
I
RT(UP)
I
RT(DOWN)
I
RT(INT)
V
RT(INT,LH)
Reset Output (RST)
t
RST(INT)
t
RST(EXT)
t
UV
V
OL
Internal Reset Timeout Period
Adjustable Reset Timeout Period
VM Undervoltage Detect to
RST
Asserted
Output Voltage Low
RST
V
RT
= V
CC
C
RT
= 2.2nF
VM Less Than Reset Threshold
V
MTX
by More Than 5%
V
CC
= 3.3V, I
RST
= 2.5mA
V
CC
= 1V, I
RST
= 100μA
V
CC
= 0.8V, I
RST
= 15μA
RST
= V
CC
l
l
l
l
l
l
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 2.5V, unless otherwise noted. (Note 2)
PARAMETER
RT Pull-Up Current
RT Pull-Down Current
Internal RT V
CC
Detect Current
RT Internal Timer Threshold
CONDITIONS
V
RT
= 0.25V
V
RT
= 1.1V
V
RT
= V
CC
V
RT
Rising, Referenced to V
CC
l
l
l
l
MIN
–2
2
–100
150
16
10
TYP
–3
3
1
–160
200
20
80
0.15
0.15
0.05
MAX
–4
4
8
–300
260
25
150
0.4
0.3
0.2
±1
0.2 • V
CC
UNITS
μA
μA
μA
mV
ms
ms
μs
V
V
V
μA
V
V
kΩ
ns
Reset Timer Control (RT)
I
OH(RST)
V
IL
V
IH
R
PU
t
PW
RST
Output Voltage High Leakage
Input Low Voltage
Input High Voltage
Pull Up Resistance
Pulsewidth
Manual Reset Input (LTC2916)
l
l
l
l
0.8 • V
CC
50
250
100
150
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
All currents into pins are positive; all voltages are referenced to
GND unless otherwise noted.
Note 3:
V
CC
maximum pin voltage is limited by input current. Since the
V
CC
pin has an internal 6.2V shunt regulator, a low impedance supply
which exceeds 5.7V may exceed the rated terminal current. Operation
from higher voltage supplies requires a series dropping resistor. See
Applications Information.
Note 4:
Input impedance is dependent on the configuration of the SEL
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