UTC51494 Просмотр технического описания (PDF) - Unisonic Technologies

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UTC51494

Linear Integrated Circuit

Unisonic Technologies 

UTC 51494 LINEAR INTEGRATED CIRCUIT

PARAMETER

Power Good Section

Power Good Delay Time

Power Fail Lead Time

Output High Voltage

Output Saturation Voltage

Output Leakage Current

SYMBOL

TEST CONDITIONS

tpd

Tp1

Voh

Vsat

Ioh

Cd = 1µ

Cd = 0.47µ

Vpinn = 5V, IL = 1mA

Vpinn = 5V, Isink = 4mA

MIN TYP MAX UNIT

230 280 330 ms

108 130 160

4

ms

4.75

V

0.4

V

100 µA

PIN DESCRIPTION

PIN NAME

FUNCTION

1

EA1+ Error amplifier noninverting input, same as pin 1 of 494

2

EA1- Error amplifier inverting input, same as pin 2 of 494

3

EA0 Error amplifier output and feedback, same as pin 3 of 494

4

DT Dead time control input, same as pin 4 of 494

5

CT Connect capacitor to oscillator circuit for operating frequency, same as pin 5 of 494

6

RT Connect resistor to oscillator circuit for operating frequency, same as pin 6 of 494

7

GND Ground terminal of IC, same as pin 7 of 494

8

C1 Collector of output transistor one, same as pin 8 of 494

9

GND Ground terminal of IC

10

Cpg Terminal for capacitor to determine power good delay time

11

C2 Collector of output transistor two, same as pin 11 of 494

12

Vcc Supply voltage, same as pin 12 of 494

13

P.G. Output for power good signal

14

Vref Reference voltage output, same as pin 14 of 494

15

EA2- Error amplifier inverting input, same as pin 15 of 494

16

EA+ Error amplifier noninverting input, same as pin 16 of 494

UTC UNISONIC TECHNOLOGIES CO. LTD 3

QW-R103-005,A

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