LTC2916 Linear Technology, LTC2916 Datasheet - Page 4

• Manufacturer Part Number: LTC2916
• Description: Voltage Supervisor
• Manufacturer: Linear Technology

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LTC2915/LTC2916
ELECTRICAL CHARACTERISTICS
SYMBOL
Reset Timer Control (RT)
I
I
I
V
Reset Output (RST)
t
t
t
V
I
Manual Reset Input (LTC2916)
V
V
R
t
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.
4
temperature range, otherwise specifi cations are at T
TIMING DIAGRAM
RT(UP)
RT(DOWN)
RT(INT)
RST(INT)
RST(EXT)
UV
OH(RST)
PW
RT(INT,LH)
OL
IL
IH
PU
PARAMETER
RT Pull-Up Current
RT Pull-Down Current
Internal RT V
RT Internal Timer Threshold
Internal Reset Timeout Period
Adjustable Reset Timeout Period
VM Undervoltage Detect to RST
Asserted
Output Voltage Low RST
RST Output Voltage High Leakage
Input Low Voltage
Input High Voltage
Pull Up Resistance
Pulsewidth
CC
Detect Current
RST
VM
V
MTx
1V
A
= 25°C. V
CONDITIONS
V
V
V
V
V
C
VM Less Than Reset Threshold
V
V
V
V
RST = V
RT
RT
RT
RT
RT
RT
MTX
CC
CC
CC
Monitor Input Timing
t
UV
The
= 0.25V
= 1.1V
= V
Rising, Referenced to V
= V
= 2.2nF
= 3.3V, I
= 1V, I
= 0.8V, I
by More Than 5%
CC
CC
CC
l
CC
RST
denotes the specifi cations which apply over the full operating
= 2.5V, unless otherwise noted. (Note 2)
RST
RST
= 100μA
Note 3: V
V
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 confi guration of the SEL
pins.
= 2.5mA
= 15μA
CC
pin has an internal 6.2V shunt regulator, a low impedance supply
t
RST
CC
CC
maximum pin voltage is limited by input current. Since the
29156 TD01
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
0.8 • V
–100
MIN
150
250
–2
16
10
50
2
CC
–160
0.15
0.15
0.05
TYP
200
100
–3
20
80
3
1
0.2 • V
–300
MAX
260
150
150
0.4
0.3
0.2
–4
25
±1
4
8
CC
UNITS
29156fa
mV
ms
ms
kΩ
μA
μA
μA
μA
μs
ns
V
V
V
V
V