Datasheet

LTC2913
3
2913fb
ELECTRICAL CHARACTERISTICS
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.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
SHUNT
V
CC
Shunt Regulator Voltage I
CC
= 5mA
l
6.2 6.6 6.9 V
–40ºC < T
A
< 125ºC
l
6.2 6.6 7.0 V
ΔV
SHUNT
V
CC
Shunt Regulator Load Regulation I
CC
= 2mA to 10mA
l
200 300 mV
V
CC
Supply Voltage (Note 3)
l
2.3 V
SHUNT
V
V
CCR(MIN)
Minimum V
CC
Output Valid DIS = 0V
l
1V
V
CC(UVLO)
Supply Undervoltage Lockout DIS = 0V, V
CC
Rising
l
1.9 2 2.1 V
ΔV
CC(UVHYST)
Supply Undervoltage Lockout Hysteresis DIS = 0V
l
52550 mV
I
CC
Supply Current V
CC
= 2.3V to 6V
l
44 80 μA
V
UOT
Undervoltage/Overvoltage Threshold
l
492 500 508 mV
t
UOD
Undervoltage/Overvoltage Threshold to
Output Delay
VHn = V
UOT
– 5mV or VLn = V
UOT
+ 5mV
l
50 125 500 μs
I
VHL
VHn, VLn Input Current
l
±15 nA
–40ºC < T
A
< 125ºC
l
±30 nA
t
UOTO
UV/OV Time-Out Period C
TMR
= 1nF
l
6 8.5 12.5 mS
–40ºC < T
A
< 125ºC
l
6 8.5 14 mS
V
LATCH(VIH)
OV Latch Clear Input High
l
1.2 V
V
LATCH(VIL)
OV Latch Clear Input Low
l
0.8 V
I
LATCH
LATCH Input Current V
LATCH
> 0.5V
l
±1 μA
V
DIS(VIH)
DIS Input High
l
1.2 V
V
DIS(VIL)
DIS Input Low
l
0.8 V
I
DIS
DIS Input Current V
DIS
> 0.5V
l
123 μA
I
TMR(UP)
TMR Pull-Up Current V
TMR
= 0V
l
–1.3 –2.1 –2.8 μA
–40ºC < T
A
< 125ºC
l
–1.2 –2.1 –2.8 μA
I
TMR(DOWN)
TMR Pull-Down Current V
TMR
= 1.6V
l
1.3 2.1 2.8 μA
–40ºC < T
A
< 125ºC
l
1.2 2.1 2.8 μA
V
TMR(DIS)
Timer Disable Voltage Referenced to V
CC
l
–180 –270 mV
V
OH
Output Voltage High UV/OV V
CC
= 2.3V, I
UV/OV
= –1μA
l
1V
V
OL
Output Voltage Low UV/OV V
CC
= 2.3V, I
UV/OV
= 2.5mA
V
CC
= 1V, I
UV
= 100μA
l
l
0.1
0.01
0.3
0.15
V
V
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
CC
= 3.3V, VLn = 0.45V, VHn = 0.55V, LATCH = V
CC
,
DIS = Open unless otherwise noted. (Note 2)
Note 3: V
CC
maximum pin voltage is limited by input current. Since the
V
CC
pin has an internal 6.5V shunt regulator, a low impedance supply that
exceeds 6V may exceed the rated terminal current. Operation from higher
voltage supplies requires a series dropping resistor. See Applications
Information.