LTC2914 Linear Technology, LTC2914 Datasheet - Page 3

• Manufacturer Part Number: LTC2914
• Description: Quad UV/OV Positive/Negative Voltage Monitor
• Manufacturer: Linear Technology

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SYMBOL
V
ΔV
V
V
V
ΔV
I
V
V
t
I
t
V
V
I
V
V
I
I
I
V
V
V
Three-State Input SEL
V
V
V
I
I
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.
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
DIS = Open unless otherwise noted. (Note 2)
CC
UOD
VHL
UOTO
LATCH
DIS
TMR(UP)
TMR(DOWN)
SEL
SEL(MAX)
SHUNT
CC
CCR(MIN)
CC(UVLO)
REF
UOT
LATCH(IH)
LATCH(IL)
DIS(IH)
DIS(IL)
TMR(DIS)
OH
OL
IL
IH
Z
SHUNT
CC(UVHYST)
PARAMETER
V
V
Supply Voltage (Note 3)
Minimum V
Supply Undervoltage Lockout
Supply Undervoltage Lockout Hysteresis
Supply Current
Reference Output Voltage
Undervoltage/Overvoltage Voltage Threshold
Undervoltage/Overvoltage Voltage Threshold
to Output Delay
VHn, VLn Input Current
UV/OV Time-Out Period
OV Latch Clear Input High
OV Latch Clear Threshold Input Low
LATCH Input Current
DIS Input High
DIS Input Low
DIS Input Current
TMR Pull-Up Current
TMR Pull-Down Current
Timer Disable Voltage
Output Voltage High UV/OV
Output Voltage Low UV/OV
Low Level Input Voltage
High Level Input Voltage
Pin Voltage when Left in Hi-Z State
SEL High, Low Input Current
Maximum SEL Input Current
CC
CC
Shunt Regulator Voltage
Shunt Regulator Load Regulation
CC
Output Valid
A
= 25°C. V
CONDITIONS
I
I
DIS = 0V
V
DIS = 0V
V
I
VHn = V
C
V
V
V
V
Referenced to V
V
V
V
I
SEL Tied to Either V
CC
CC
VREF
SEL
CC
CC
TMR
LATCH
DIS
TMR
TMR
CC
CC
CC
= 5mA
= 2mA to 10mA
The
Rising, DIS = 0V
= 2.3V to 6V
= 2.3V, I
= 2.3V, I
= 1V, I
= ±10µA
> 0.5V
= ±1mA
= 1nF
= 0V
= 1.6V
> 0.5V
UOT
●
CC
UV
denotes the specifi cations which apply over the full operating
– 5mV or VLn = V
= 3.3V, VLn = 0.45V, VHn = 0.55V, LATCH = V
UV/OV
UV/OV
= 100µA
CC
Note 3: V
V
exceeds 6V may exceed the rated terminal current. Operation from higher
voltage supplies requires a series dropping resistor. See Applications
Information.
CC
= –1µA
= 2.5mA
CC
pin has an internal 6.5V shunt regulator, a low impedance supply that
or GND
CC
maximum pin voltage is limited by input current. Since the
UOT
+ 5mV
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
0.985
–180
MIN
–1.3
492
6.2
2.3
1.9
1.2
1.2
1.3
1.4
0.7
50
5
6
1
1
–270
–2.1
0.01
TYP
200
500
125
6.6
8.5
2.1
0.1
0.9
25
70
CC
2
1
2
, SEL = V
LTC2914
V
1.015
MAX
SHUNT
12.5
–2.8
0.15
300
100
508
500
±15
±25
±30
6.9
2.1
0.8
0.8
2.8
0.3
0.4
1.1
50
±1
1
3
CC
,
UNITS
3
2914f
mV
mV
mV
mV
ms
µA
nA
µA
µA
µA
µA
µA
µA
µs
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V