LM2485 datasheet(2/8 Pages) NSC

2 / 8 page

Absolute Maximum Ratings (Notes 1,

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Supply Voltage, V

250V

Bias Voltage, V

15V

Input Voltage, V

-0.5V to +6.5V

Blanking Input Voltage, VB

-0.5V to +6.5V

Storage Temperature Range, T

STG

-65˚C to +150˚C

Lead Temperature (Soldering,

<10sec.)

300˚C

ESD Tolerance

Human Body Model

2 kV

Machine Model

200V

Max Junction Temperature

150˚C

JA (Max at 0 LFPM)

68˚C/W

Operating Ranges (Note 3)

170V to 230V

BB (Pin 12 floated)

7.5V to 8.5V

BB (Pin 12 grounded)

11.5V to 12.5V

0V to 5V

OUT

105V to 215V

0V to 5V

OUT (VCC = 220V)

40V to 80V

OUT (VCC = 180V)

25V to 65V

Ambient Temperature Range, T

-20˚C to T

AMAX

(Note 5)

Electrical Characteristics

(See Figure 2 and Figure 3 for Test Circuits)

Unless otherwise noted: V

CC = 220V, VBB = 8V, VIN = 2.5VDC,TA = 20˚C, Pin 12 floated, Pin 13 grounded.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Supply Current

All channels, not including pull-up

resistor currents

3.1

4.2

BB–8

Bias Supply Current

All channels, V

BB = 8V

6.0

10.0

BB–12

Bias Supply Current

All channels, Pin 12 grounded,

BB = 12V

9.0

13.0

OUT

Clamp Output Voltage

170

175

180

OUT-Range

Clamp Output Voltage

Range

IN-Range= 1.5V to 4.5V

Clamp Output DC Voltage

Gain

1.0V

≤ V

≤ 5.0V

–23

–25

–27

V/V

Clamp Output Linearity

Error

(Note 4)

OUT-High

Blanking Output High

Level

≤ 0.5V

OUT-Low1

Blanking Output Low

Level 1

≥ 4.5V, Pin 13 floated

OUT-Low2

Blanking Output Low

Level 2

≥ 4.5V

Blanking Output Rise

Time

IN = 0V–5V Logic Pulse at 8.6%

duty cycle (480p), VB

OUT = 40VP-P

(40V-80V)

2.0

Blanking Output Fall Time VB

IN = 0V–5V Logic Pulse at 8.6%

duty cycle (480p), VB

OUT = 40VP-P

(40V-80V)

4.5

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.

Note 2: Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and

the test conditions, see the Electrical Characteristics. Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis. The guaranteed

specifications apply only for the test conditions listed. Some performance characteristics may change when the device is not operated under the listed test

conditions.

Note 3: All voltages are measured with respect to GND, unless otherwise specified.

Note 4: Linearity Error is the variation in DC gain from VIN= 1.0V to 5.0V measured at the points 1.0V, 1.5V, 4.5V, and 5.0V.

Note 5: See Section THERMAL CONSIDERATIONS to calculate TAMAX.

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