LTC2926IUFD データシートの表示（PDF） - Linear Technology
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LTC2926IUFD Datasheet PDF : 28 Pages
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LTC2926
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 3.3V unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Supply Voltage
VCC
ICC
VCC(UVLO)
ΔVCC(UVLO)
Input Supply Voltage
Input Supply Current
Input Supply Undervoltage Lockout
Input Supply Undervoltage Lockout
Hysteresis
Operating Range
ITRACKn = 0mA, IFBn = 0mA,
IRAMPBUF = 0mA
ITRACKn = –1mA, IFBn = –1mA,
IRAMPBUF = –3mA
VCC Rising
● 2.9
3.3
5.5
V
● 1.5
2.5
3.5
mA
● 8.5
9.5
10.5
mA
● 2.2
2.4
2.6
V
● 15
50
75
mV
Control and I/O
VON(TH)
ΔVON(TH)
ION
VON(CLR)
tCLR
VON(ARM)
tARM
VFAULT(TH)
IFAULT(UP)
VFAULT(OL)
VFAULT(OH)
VPGI(TH)
ON Pin Threshold Voltage
VON Rising
ON Pin Threshold Voltage Hysteresis
● 1.20 1.23 1.26
V
● 40
75
110
mV
ON Pin Input Current
VON = 1.2V, VCC = 5.5V
●
0
±100
nA
ON Pin Fault Clear Threshold Voltage VON Falling
● 0.465 0.500 0.535
V
Fault Clear Delay
VON Falling
●
1
3
10
µs
ON Pin Fault Arm Threshold Voltage VON Rising
● 0.565 0.600 0.635
V
Fault Arm Delay
VON Rising
●
1
4.5
10
µs
FAULT Pin Input Threshold Voltage VFAULT Falling
● 0.465 0.500 0.535
V
FAULT Pin Pull-up Current
Fault Latch Clear, VFAULT = 1.5V
● –3.0 –8.5 –13
µA
FAULT Pin Output Low Voltage
Fault Latch Set, IFAULT = 5mA, VCC = 2.7V
●
100
400
mV
FAULT Pin Output High Voltage
(VCC – VFAULT)
Fault Latch Clear, IFAULT = –1µA
● 300
550
900
mV
STATUS/PGI Pin Input Threshold
Voltage
VSTATUS/PGI Rising
● 1.10 1.23 1.36
V
ΔVPGI(TH)
STATUS/PGI Pin Input Threshold
Voltage Hysteresis
● 30
75
150
mV
IPGI(UP)
STATUS/PGI Pin Pull-Up Current
STATUS/PGI On, VSTATUS/PGI = 1.5V
● –7
–10
–13
µA
VSTATUS(OL)
STATUS/PGI Pin Output Low Voltage VON Low, ISTATUS/PGI = 5mA, VCC = 2.7V
●
200
400
mV
VSTATUS(OH)
STATUS/PGI Pin Output High Voltage ISTATUS/PGI = –1µA
(VSTATUS/PGI – VCC)
● 5.0
5.5
6.0
V
VPGTMR(TH)
PGTMR Pin Threshold Voltage
VPGTMR Rising
● 1.10 1.23 1.36
V
IPGTMR(UP)
PGTMR Pin Pull-Up Current
ON High, VPGTMR = 1V
● –8
–10
–12
µA
IPGTMR(DN)
PGTMR Pin Pull-Down Current
ON Low, VPGTMR = 0.1V, VCC = 2.7V
● 0.5
4
10
mA
VPGTMR(CLR)
PGTMR Pin Clear Threshold Voltage VPGTMR Falling
● 50
100
150
mV
Ramp Buffer
IRAMP(IN)
RAMP Pin Input Current
0V < VRAMP < 5.5V, VCC = 5.5V
●
VRAMPBUF(OS)
Ramp Buffer Offset Voltage
VRAMP = 1/2 VCC, IRAMPBUF = 0mA
●
VRAMPBUF(OL)
RAMPBUF Pin Output Low Voltage IRAMPBUF = 3mA
●
0
±1
µA
0
±10
mV
32
60
mV
2926fa
3
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