LTC2924C(RevA) データシートの表示（PDF） - Linear Technology
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LTC2924C Datasheet PDF : 20 Pages
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LTC2924
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 3V to 6V, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
TMR Characteristics
ITMR
Timer Pin Output Current
VTH(HI)
Timer High Voltage Threshold
PGT Characteristics
Timer On, VTMR ≤ 0.9V
VCC = 5V
●4
5
6
µA
0.93
1
1.07
V
IPGT
Power Good Timer Pin Output Current
Power Good Timer On, VPGT ≤ 0.9V ● 4
5
6
µA
VPGT
Power Good Timer Fault Detected
VCC = 5V
Voltage Threshold
0.93
1
1.07
V
DONE Characteristics
RD(LO)
DONE Pin Pull-Down Resistance to GND
DONE = Low, I = 2mA
●
ID(HI)
DONE Pin Off Leakage Current
DONE = High
●
FAULT Characteristics
100
Ω
15
µA
RFAULT (LO)
FAULT Pin Pull-Down Resistance to GND
FAULT Being Pulled Low Internally, ●
I = 2mA
400
Ω
IFAULT(HI)
VFAULT(HI)
FAULT Pin Off Leakage Current
Voltage Above Which an Externally Generated
FAULT Condition Will Not be Detected
FAULT High
●
● 1.6
2
µA
V
VFAULT(LO)
Voltage Below Which an Externally Generated
FAULT Condition Will be Detected
●
0.6
V
RF(EXT)
tFAULT
External Pull-Up Resistance
Externally Commanded FAULT Below VFAULT(LO)
to OUT1-OUT4 Pull-Down On Delay
● 10
●
kΩ
1
µs
tFAULT(MIN)
Externally Commanded FAULT Minimum Time (Note 4)
Below VFAULT(LO)
1
µs
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Hysteresis current must be 500nA minimum. Hysteresis current
Note 4: Determined by design, not production tested. External circuits
pulling down on the FAULT pin must maintain the signal below VFAULT(LO)
for ≥1µs.
may exceed 50µA, but accuracy is not guaranteed.
Note 5: Internal circuits may drive the OUTn pins higher than the Absolute
Note 3: HYS/CFG pin must be pulled to GND or VCC with an external
resistor. See Applications Information for details.
Maximum Ratings.
Note 6: RIN is the parallel combination of the two resistors forming the
resistive divider connected to the ON and IN1-IN4 pins.
TYPICAL PERFOR A CE CHARACTERISTICS
ICC vs VCC
2.3
IOUT1-4 = –10µA
2.1 RHYS = 51k
1.9
ON HIGH
1.7
1.5
1.3
ON LOW
1.1
0.9
3 3.5
4 4.5 5
VCC (V)
5.5 6
2924 G01
VOUT(EN) vs IOUT
14
12
VCC = 6V
10
VCC = 3V
8
6
4
2
ONE OUTPUT DRIVING CURRENT
0
02
4
6
8
IOUT (µA)
10 12
2924 G02
VOUT(EN) vs VCC
12 IOUT1-4 < 1µA
11
10
9
8
7
2
3
4
5
6
VCC (V)
2924 G03
2924fa
3
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