LTC2910 데이터 시트보기 (PDF) - Linear Technology
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LTC2910 Datasheet PDF : 16 Pages
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LTC2910
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 3.3V, Vn = 0.55V, SEL = VCC, DIS = OPEN unless otherwise noted.
(Note 2)
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VCC(UVLO)
Supply Undervoltage Lockout
VCC Rising, DIS = 0V
ΔVCC(UVHYST)
Supply Undervoltage Lockout Hysteresis DIS = 0V
ICC
Supply Current
VCC = 2.3V to 6V
VREF
Reference Output Voltage
IVREF = ±1mA
VRT
Vn Input Voltage Threshold
tPROP
Vn Input Threshold to Output Delay
Vn = VRT – 5mV
IVN
Vn Input Current
tRST
Reset Timeout Period
CTMR = 1nF
VDIS(VIH)
DIS Input Threshold Voltage High
VDIS(VIL)
DIS Input Threshold Voltage Low
IDIS
DIS Input Current
VDIS > 0.5V
ITMR(UP)
TMR Pull-Up Current
VTMR = 0V
ITMR(DOWN)
TMR Pull-Down Current
VTMR = 1.6V
VTMR(DIS)
Timer Disable Voltage
Referenced to VCC
VOH
Output Voltage High RST/⎯R⎯S⎯T
VCC = 2.3V, I⎯R⎯S⎯T/RST = –1µA
VOL
Output Voltage Low RST/⎯R⎯S⎯T
VCC = 2.3V, I⎯R⎯S⎯T/RST = 2.5mA
VCC = 1V, I⎯R⎯S⎯T = 100µA
Three-State Input SEL
● 1.9
2
2.1
V
●
5
25
50
mV
●
70
100
µA
● 0.985
1
1.015
V
● 492
500
508
mV
● 50
125 500
µs
●
±15
nA
●
6
8.5
12.5
ms
● 1.2
V
●
0.8
V
●
1
2
3
µA
● –1.3 –2.1 –2.8
µA
● 1.3
2.1
2.8
µA
● –180 –270
mV
●
1
V
●
0.1
0.3
V
0.01 0.15
V
VIL
VIH
VZ
ISEL
ISEL(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
ISEL = ±10µA
SEL tied to either VCC or GND
●
0.4
V
● 1.4
V
● 0.7
0.9
1.1
V
●
±25
µA
●
±30
µA
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: VCC maximum pin voltage is limited by input current. Since the
VCC 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.
2910fb
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