LR645

DS20005384B-page 3

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1.0

ELECTRICAL CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS†

Input Voltage ........................................................................................................................................................... 450V

Output voltage........................................................................................................................................................ 15.5V

Operating and storage temperature ...................................................................................................... -55°C to +150°C

1.1

ELECTRICAL SPECIFICATIONS

†Notice: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage

to the device. This is a stress rating only and functional operation of the device at those or any other

conditions, above those indicated in the operational listings of this specification, is not implied. Exposure

to maximum rating conditions for extended periods may affect device reliability.

TABLE 1-1:

ELECTRICAL CHARACTERISTICS 1

1

Symbol

Parameter

Min

Typ

Max

Units Conditions

VOUT

Output voltage

9.3

10

10.7

V

No load

Output voltage over temperature2

2

9.0

10

11.5

V

TJ = -40 to +125°C, No load

ΔVOUT

Line regulation

—

40

200

mV

VIN = 15 to 400V, No load

Load regulation

—

150

400

mV

VIN = 50V, IOUT = 0 to 3.0 mA

VIN

Operating input voltage range

15

—

450

V

IINQ

Input quiescent current

—

50

150

µA

No Load

IOFF

VIN off-state leakage current

—

0.1

10

µA

VAUX ≥ VOUT +1V applied to VOUT pin

IAUX

Input current to VOUT

——

200

µA

VAUX ≥ VOUT +1V applied to VOUT pin

ΔVOUT/ΔVIN Ripple rejection ratio2

50

60

—

dB

120 Hz, No Load

en

Noise voltage2

—

25

—

µV

0.01 to 100 kHz

IPEAK

Output peak current3

3

—30—

mA

COUT = 10 µF, VIN = 400V

VAUX

External voltage applied to VOUT

——

13.2

V

8-lead, adjustable voltage version only

VOUT

Output regulation trim range2

8

—

12

V

No load

ΔVOUT

Load regulation at 8V trim2

—

200

400

mV

VIN = 15V, IOUT = 0 to 1.0 mA

Load regulation at 12V trim

—

100

400

mV

VIN = 50V, IOUT = 0 to 3.0 mA

Note 1: Test2 Conditions unless otherwise specified: TA = 25°C, VIN = 15V-450V, COUT = 0.01 µF.

2: Ensured by design.

3: Pulse test duration <1.0 msec, duty cycle <2%Determined by characterization, not production tested.

TABLE 1-2:

THERMAL CHARACTERISTICS1

1

Package

θja

Power Dissipation @TA=25°C

8-lead SOIC

101°C/W

0.31

TO-92

132°C/W

0.74

TO-220

29°C/W

1.8

TO-243AA (SOT-89)

133°C/W

1.6

Note 1: Mounted on FR5 board; 25mm x 25mm x 1.57mm. Significant PD increase possible on ceramic substrate.