L6598 datasheet(4/17 Pages) STMICROELECTRONICS

Numer części	L6598

Szczegółowy opis	HIGH VOLTAGE RESONANT CONTROLLER

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Producent	STMICROELECTRONICS [STMicroelectronics]

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L6598

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Table 6. Electrical Characteristcs

(VS = 12V; VBOOT - VOUT = 12V; Tamb = 25°C)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

SUPPLY VOLTAGE

Vsuvp

12

VS Turn On Threshold

10

10.7

11.4

V

Vsuvn

VS Turn Off Threshold

7.3

8

8.7

V

Vsuvh

Supply Voltage Under Voltage

hysteresis

2.7

V

Vcl

Supply Voltage Clamping

14.6

15.6

16.6

V

Isu

Start Up Current

Vs < Vsuvn

250

µA

Iq

Quiescent Current, fout =

60kHz, no load

Vs > Vsuvp

23

mA

HIGH VOLTAGE SECTION

Ibootleak

16

BOOT pin Leakage Current

VBOOT = 580V

5

µA

Ioutleak

14

OUT pin Leakage Current

VOUT = 562V

5

µA

Rdon

16

Bootstrap Driver On Resistance

100

150

300

Ω

HIGH/LOW SIDE DRIVERS

Ihvgso

15

High Side Driver Source Current VHVG-VOUT = 0

170

250

mA

Ihvgsi

High Side Driver Sink Current

VHVG-VBOOT = 0

300

450

mA

Ilvgso

11

Low Side Driver Source Current

VLVG-GND = 0

170

250

mA

Ilvgsi

Low Side Driver Sink Current

VLVG - VS = 0

300

450

mA

trise

15,11

Low/High Side Output Rise

Time

Cload = 1nF

80

120

ns

tfall

Cload = 1nF

40

80

ns

OSCILLATOR

DC

14

Output Duty Cycle

48

50

52

%

fmin

Minimum Output Oscillation

Frequency

Cf = 470pF; Rfmin = 50k

58.2

60

61.8

kHz

fstart

Soft Start Output Oscillation

Frequency

Cf = 470pF; Rfmin = 50k;

Rfstart = 47k

114

120

126

kHz

Vref

2, 4

Voltage to Current Converters

Threshold

1.922.1

V

td

14

Dead Time between Low and

High Side Conduction

0.2

0.27

0.35

µs

TIMING SECTION

kss

1

Soft Start Timing constant

Css = 330nF

0.115

0.15

0.185

s/

µF

SENSE OP AMP

lIB

6, 7

Input Bias Current

0.1

µA

Vio

Input Offset Voltage

-10

10

mV

Rout

5

Output Resistance

200

300

Ω

Iout-

Source Output Current

Vout = 4.5V

1

mA

Iout+

Sink Output Current

Vout = 0.2V

1

mA

Vic

6,7

OP AMP input common mode

range

-0.2

3

V

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