UPC1555C datasheet(2/12 Pages) NEC

2 / 12 page

µPC1555

ABSOLUTE MAXIMUM RATINGS (TA = 25

°C)

Notes 1. Be sure to use the product within the Power dissipation.

2. For TA

≥ 25°C, the total loss is derated at TJ MAX = 125°C and –6 mW/°C.

(See the PT-TA characteristic curve.)

3. For TA

≥ 25°C, the total loss is derated at TJ MAX = 125°C and –4.4 mW/°C.

(See the PT-TA characteristic curve.)

4. This is an external voltage that can be applied to the output pin without deteriorating the quality of the

product or causing damage to the product.

Be sure to use the product within the rated value under any conditions where coils are inserted or power

is turned on or off. The output voltage that can be obtained during normal operation is within the output

saturation voltage range.

RECOMMENDED OPERATING CONDITIONS (TA = 25

°C)

Parameter

Symbol

Conditions

MIN.

MAX.

Unit

Supply voltage

VCC

4.5

Oscillation frequency

VCC = 5 to 15 V

0.1

100 k

Output pulse width

tW (OUT)

VCC = 5 to 15 V

Sec

Input voltage (trigger, threshold)

VIN

0VCC

Input voltageNote 5 (control)

VIN

3.0

VCC • 1.5

Reset voltage (high level)

Vreset H

VCC = 5 to 15 V

1.0

VCC

Reset voltage (low level)

Vreset L

VCC = 5 to 15 V

0.4

Note 5.

This parameter defines the voltage that can be applied when a PWM mode application circuit is

configured by applying an external voltage to the control pin. Usually, a capacitance of 0.01

µF is

connected as shown in the application circuit.

Rated value

Parameter

Symbol

µPC1555C

µPC1555G

Unit

Supply voltage

VCC

–0.3 to +18

Input voltage

VIN

–0.3 to VCC + 0.3

(trigger, threshold, reset, control)

Applicable output voltageNote 4

–0.3 to VCC + 0.3

(output and discharge)

Output current

200Note 1

Power dissipation

600Note 2

440Note 3

Operating temperature

–20 to +80

°C

Storage temperature

Tstg

–55 to +125

°C

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