LTC1921

2

1921f

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1) All voltages referred to RTN

Supply Voltage

(Note 2) ........................................................ 0V to 200V

(Note 2) ...................................................... 0V to –200V

OUT A, OUT B, OUT F Pins ......................... 0.3V to – 8V

ORDER PART

NUMBER

LTC1921CMS8

LTC1921IMS8

MS8 PART MARKING

LTZV

LTZU

Consult LTC Marketing for parts specified with wider operating temperature ranges.

FUSE B = –48V, unless otherwise noted.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Power Supply

q

10

80

V

–160

–250

µA

q

–300

µA

Supply Monitor

Undervoltage Threshold

q

–39.5

–37.5

V

Undervoltage Recovery Threshold

q

–43.5

–42.5

V

Overvoltage Threshold

q

–71.5

–68.5

V

Overvoltage Threshold Hysteresis

q

1

1.6

V

Fuse Monitor

Input Resistance, FUSE A, FUSE B

11

M

Ω

V

LTC1921C

q

0.9

4.5

V

LTC1921I

q

0.5

4.5

V

Output

Propagation Delay

220

µs

Output Switch Resistance, OUT F, OUT A, OUT B

25

Ω

q

50

Ω

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

ORDER PART

NUMBER

LTC1921CS8

LTC1921IS8

S8 PART MARKING

1921

1921I

ELECTRICAL CHARACTERISTICS

1

2

3

4

FUSE A

RTN

OUT F

8

7

6

5

FUSE B

OUT B

OUT A

TOP VIEW

MS8 PACKAGE

8-LEAD PLASTIC MSOP

1

2

3

4

8

7

6

5

TOP VIEW

FUSE B

OUT B

OUT A

FUSE A

RTN

OUT F

S8 PACKAGE

8-LEAD PLASTIC SO