LTC1921CS8 查看數據表（PDF） - Linear Technology
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LTC1921CS8 Datasheet PDF : 12 Pages
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LTC1921
ABSOLUTE AXI U RATI GS
(Note 1) All voltages referred to RTN
Supply Voltage
(VA, VB, FUSE A, FUSE B) ....................... 100V to –100V
Transient Voltage (VA, VB, FUSE A, FUSE B)
(Note 2) ........................................................ 0V to 200V
Transient Voltage (VA, VB, FUSE A, FUSE B)
(Note 2) ...................................................... 0V to –200V
OUT A, OUT B, OUT F Pins ......................... 0.3V to – 8V
UW U
PACKAGE/ORDER I FOR ATIO
Maximum Junction Temperature ......................... 150°C
Operating Temperature Range (Note 3)
LTC1921C/LTC1921I .......................... – 40°C to 85°C
Specified Temperature Range (Note 4)
LTC1921C/LTC1921I .......................... – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
TOP VIEW
VA 1
FUSE A 2
RTN 3
OUT F 4
8 VB
7 FUSE B
6 OUT B
5 OUT A
MS8 PACKAGE
8-LEAD PLASTIC MSOP
TJMAX = 150°C, θJA = 300°C/W
ORDER PART
NUMBER
LTC1921CMS8
LTC1921IMS8
MS8 PART MARKING
LTZV
LTZU
Consult LTC Marketing for parts specified with wider operating temperature ranges.
TOP VIEW
VA 1
FUSE A 2
RTN 3
OUT F 4
8 VB
7 FUSE B
6 OUT B
5 OUT A
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 190°C/W
ORDER PART
NUMBER
LTC1921CS8
LTC1921IS8
S8 PART MARKING
1921
1921I
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 5) RTN = 0V, VA = –48V, VB = –48V, FUSE A = –48V,
FUSE B = –48V, unless otherwise noted.
PARAMETER
CONDITIONS
MIN TYP MAX
Power Supply
Supply Voltage Range (RTN – VA, RTN –␣ VB)
Supply Current (IA + IB)
q 10
q
80
–160 –250
– 300
Supply Monitor
Undervoltage Threshold
q –39.5
– 37.5
Undervoltage Recovery Threshold
q –43.5
– 42.5
Overvoltage Threshold
q –71.5
– 68.5
Overvoltage Threshold Hysteresis
q1
1.6
Fuse Monitor
Input Resistance, FUSE A, FUSE B
11
Fuse Comparison Threshold |VFUSEA – VA|, |VFUSEB – VB|
LTC1921C
LTC1921I
q 0.9
4.5
q 0.5
4.5
Output
Propagation Delay
COUT = 100pF, Overdrive = 1V
Output Switch Resistance, OUT F, OUT A, OUT B
VA = VB = –35V, VFUSEA = VFUSEB = 0V
IOUT = 10mA
q
220
25
50
2
UNITS
V
µA
µA
V
V
V
V
MΩ
V
V
V
µs
Ω
Ω
1921f
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