LTC2931CF#PBF Linear Technology, LTC2931CF#PBF Datasheet - Page 3

• Manufacturer Part Number: LTC2931CF#PBF
• Description: IC 6 PWR SUPPLY MONITOR 20TSSOP
• Manufacturer: Linear Technology

Specifications of LTC2931CF#PBF

• Applications: Six Power Supply Monitor
• Voltage - Supply: 1 V ~ 7 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Voltage - Input: -

ELECTRICAL CHARACTERISTICS
SYMBOL
V
V
I
I
I
I
I
I
I
I
t
t
V
I
V
V
I
I
t
V
V
t
I
temperature range, otherwise specifi cations are at 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.
Note 3: The greater of V1, V2 is the internal supply voltage (V
VPG
V1
V2
V3
V4
V5
CRT(UP)
CRT(DN)
RST
UV
COMPn
CWT(UP)
CWT(DN)
WD
WP
WDI
REF
PG
OL
OL
OH
IH
IL
, I
V6
PARAMETER
Reference Voltage
Mode Selection Voltage Range
VPG Input Current
V1 Input Current
V2 Input Current
V3 Input Current
V4 Input Current
V5, V6 Input Current
CRT Pull-Up Current
CRT Pull-Down Current
Reset Timeout Period
V
COMP
Voltage Output Low RST, COMP
COMP
Voltage Output Low WDO
Voltage Output High RST, WDO, COMP
(Note 5)
CWT Pull-Up Current
CWT Pull-Down Current
Watchdog Timeout Period
WDI Input Threshold High
WDI Input Threshold Low
WDI Input Pulse Width
WDI Pull-Up Current
n
Undervoltage Detect to RST or
n
n
Pull-Up Current
n
A
n
CC
= 25°C. V
).
CONDITIONS
V
C
V
V
V1 = 5V, I
V2 = 3.3V
V3 = 2.5V
V3 = 0.55V (ADJ Mode)
V4 = 1.8V
V4 = 0.55V (ADJ Mode)
V4 = –0.02V (–ADJ Mode)
V5, V6 = 0.55V
V
V
C
V
than 1%
I
I
V
I
I
V
V
C
V
V
V
V
SINK
SINK
SINK
SOURCE
WDI
CC
REF
CC
PG
CRT
CRT
RT
n
COMPn
CWT
CWT
WT
CC
CC
CC
Less Than Reset Threshold by More
The
≥ 2.3V, I
≥ V
= 1500pF
= 3.3V to 5.5V
= 3.3V to 5.5V
= 3.3V
= V
= 1500pF
≤ 1000pF
= GND
= 1.3V
= 3mA, V
= 100μA, V
= 3mA
= 1V
= GND
= 1.3V
CCMINP
REF
= GND
= –1μA
●
CC
VREF
denotes the specifi cations which apply over the full operating
= 5V, unless otherwise specifi ed. (Note 3)
VREF
= 12μA (Note 4)
CC
Note 4: Under static no-fault conditions, V1 will necessarily supply quiescent
current. If at any time V2 is larger than V1, V2 must be capable of supplying
the quiescent current, programming (transient) current and reference load
current.
Note 5: The output pins RST, WDO, and COMP
pull-ups to V2 of typically 6μA. However, external pull-up resistors may be used
when faster rise times are required or for V
CC
= ±1mA,
= 3V
= 1V
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
1.192
V2-1
MIN
–1.4
–1.4
–15
–15
–15
–15
150
1.6
10
–2
10
20
–4
0
2
OH
n
voltages greater than V2.
1.210
have diode protected internal
0.52
0.34
0.15
0.05
0.15
TYP
150
–10
0.8
52
–2
20
–6
–2
20
30
3
LTC2931
1.228
MAX
V
–2.6
–2.6
±20
–12
–16
1.2
0.8
0.4
0.3
0.4
0.4
75
15
15
15
15
30
30
40
REF
2
4
UNITS
2931fb
3
ms
ms
nA
μA
μA
μA
nA
μA
nA
nA
nA
μA
μA
μA
μA
μA
μA
μs
ns
V
V
V
V
V
V
V
V