Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking:
http://www.linear.com/leadfree/
*The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
SYMBOL
V
SHUNT
ΔV
SHUNT
V
CC
V
CC(MIN)
PARAMETER
V
CC
Shunt Regulator Voltage
V
CC
Shunt Regulator Load Regulation
Supply Voltage
Minimum V
CC
Output Valid
The
●
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 3.3V, Vn = 0.55V, SEL = V
CC
, DIS = OPEN unless otherwise noted.
(Note 2)
CONDITIONS
I
CC
= 5mA
I
CC
= 2mA to 10mA
DIS = 0V
●
●
●
●
MIN
6.2
2.3
TYP
6.6
200
MAX
6.9
300
V
SHUNT
1
UNITS
V
mV
V
V
2910fb
2
LTC2910
ELECTRICAL CHARACTERISTICS
SYMBOL
V
CC(UVLO)
ΔV
CC(UVHYST)
I
CC
V
REF
V
RT
t
PROP
I
VN
t
RST
V
DIS(VIH)
V
DIS(VIL)
I
DIS
I
TMR(UP)
I
TMR(DOWN)
V
TMR(DIS)
V
OH
V
OL
PARAMETER
Supply Undervoltage Lockout
Supply Current
Reference Output Voltage
Vn Input Voltage Threshold
Vn Input Threshold to Output Delay
Vn Input Current
Reset Timeout Period
DIS Input Threshold Voltage High
DIS Input Threshold Voltage Low
DIS Input Current
TMR Pull-Up Current
TMR Pull-Down Current
Timer Disable Voltage
Output Voltage High RST/
⎯
R
⎯
S
⎯
T
Output Voltage Low RST/
⎯
R
⎯
S
⎯
T
V
DIS
> 0.5V
V
TMR
= 0V
V
TMR
= 1.6V
Referenced to V
CC
V
CC
= 2.3V, I
⎯
R
⎯
S
⎯
T/RST
= –1µA
V
CC
= 2.3V, I
⎯
R
⎯
S
⎯
T/RST
= 2.5mA
V
CC
= 1V, I
⎯
R
⎯
S
⎯
T
= 100µA
C
TMR
= 1nF
V
n
= V
RT
– 5mV
The
●
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 3.3V, Vn = 0.55V, SEL = V
CC
, DIS = OPEN unless otherwise noted.
(Note 2)
CONDITIONS
V
CC
Rising, DIS = 0V
V
CC
= 2.3V to 6V
I
VREF
= ±1mA
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
MIN
1.9
5
0.985
492
50
6
1.2
TYP
2
25
70
1
500
125
8.5
MAX
2.1
50
100
1.015
508
500
±15
12.5
0.8
UNITS
V
mV
µA
V
mV
µs
nA
ms
V
V
µA
µA
µA
mV
V
Supply Undervoltage Lockout Hysteresis DIS = 0V
1
–1.3
1.3
–180
1
2
–2.1
2.1
–270
0.1
0.01
3
–2.8
2.8
0.3
0.15
0.4
V
V
V
V
V
µA
µA
Three-State Input SEL
V
IL
V
IH
V
Z
I
SEL
I
SEL(MAX)
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
SEL tied to either V
CC
or GND
I
SEL
= ±10µA
●
●
●
●
●
1.4
0.7
0.9
1.1
±25
±30
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 6.5V 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
微控制器 MCU
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