LTC1921IMS8 Linear Technology, LTC1921IMS8 Datasheet - Page 3

• Manufacturer Part Number: LTC1921IMS8
• Description: IC DUAL PWR SUPPLY MONITOR 8MSOP
• Manufacturer: Linear Technology

Specifications of LTC1921IMS8

• Applications: Dual Power Supply Monitor
• Voltage - Supply: 10 V ~ 80 V
• Current - Supply: 160µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Voltage - Input: -

ELECTRICAL CHARACTERISTICS
PARAMETER
Output Switch Off Leakage
Output Switch Resistance in Undervoltage Lockout,
OUT F, OUT A, OUT B
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Transient voltage for less than 10 s. This parameter is not 100%
tested. Voltage should not exceed 200V between any two pins.
Note 3: The LTC1921C and LTC1921I are guaranteed functional over the
operating temperature range of –40 C to 85 C.
TYPICAL PERFOR A CE CHARACTERISTICS
temperature range, otherwise specifications are at T
FUSE B = –48V, unless otherwise noted.
–42.5
–42.6
–42.7
–42.8
–42.9
–43.0
–43.1
–43.2
–43.3
–43.4
–43.5
400
350
300
250
200
150
100
50
0
–50
Supply Current vs Supply Voltage
0
Undervoltage Recovery Threshold
vs Temperature
V
A
10
= V
–30
B
20
= V
–10
SUPPLY VOLTAGE (V)
FUSEA
30
TEMPERATURE ( C)
40
= V
10
FUSEB
50
30
60
70
50
W
80
70
90
1921 G01
1921 G04
U
100
90
–68.0
–68.5
–69.0
–69.5
–70.0
–70.5
–71.0
–71.5
–72.0
120
180
160
140
100
80
60
40
20
0
–50
–50
CONDITIONS
V
V
V
A
Supply Current vs Temperature
Overvoltage Threshold
vs Temperature
A
A
A
V
V
V
V
= 25 C. (Note 5) RTN = 0V, V
A
B
FUSEA
FUSEB
= V
= –10V, V
= 0V, V
= –48V
= –48V
–30
–30
B
The
= –10V, I
= –48V
= –48V
B
–10
–10
= –10V, I
TEMPERATURE ( C)
TEMPERATURE ( C)
B
denotes specifications which apply over the full operating
= 0V, I
10
10
OUT
I
I
A
A
Note 4: The LTC1921C is guaranteed to meet specified performance from
0 C to 70 C. The LTC1921C is designed, characterized and expected to
meet specified performance from –40 C to 85 C but is not tested or QA
sampled at these temperatures. The LTC1921I is guaranteed to meet
specified performance from –40 t0 85 C.
Note 5: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to RTN unless otherwise
specified.
+ I
, I
OUT
= 10mA
OUT
B
B
30
30
= 10mA
= 10mA
50
50
70
70
1921 G02
A
1921 G05
= –48V, V
90
90
B
–37.5
–37.7
–37.9
–38.1
–38.3
–38.5
–38.7
–38.9
–39.1
–39.3
–39.5
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.15
1.10
1.05
1.00
= –48V, FUSE A = –48V,
–50
–50
Undervoltage Threshold
vs Temperature
Overvoltage Hysteresis
vs Temperature
MIN
–30
–30
–10
–10
TEMPERATURE ( C)
TEMPERATURE ( C)
TYP
500
10
10
LTC1921
30
30
MAX
60
80
80
50
50
70
70
UNITS
1921 G06
1921 G04
3
1921f
pA
90
90