Nexperia

NEX8080 series

Wide Vcc range multi-mode flyback controller

8.4. Electrical characteristics

Table 7. Electrical characteristics

Where VCC = 10 V to 90 V; TJ = -40 °C to 125 °C; typical values are measured at VCC = 20 V, TJ = 25 °C (unless otherwise

noted).

Symbol

Parameter

Conditions

Min

Typ

Max Unit

Supply (VCC pin)

VCC_ON

VCC on threshold voltage

-

17

18 V

VCC_OFF

VCC off threshold voltage

-

8.4

-

V

VCC_HOLD

VCC hold threshold voltage

-

9

9.4 V

VCC_OVP

VCC OVP threshold voltage

83.5

89

93 V

VCC_DIS

VCC discharge threshold voltage

-

94

99 V

VCC_DIS_HYS VCC discharge threshold hysteresis

voltage

-

5

-

V

IDISCHARGE

VCC discharge current

-

5

-

mA

ISTARTUP

VCC startup current

-

5

8

μA

NEX80801, NEX80805, NEX80808

FSW = 65 kHz, VCC = 20 V,

1 nF at DRV pin

-

1.25

1.75 mA

INORMAL

VCC normal operating current

NEX80809

FSW = 85 kHz, VCC = 20 V,

1 nF at DRV pin

-

1.6

2.24 mA

IBURST

VCC current in burst mode

-

270

350 μA

Feedback input (FB pin)

VFB_OPEN

FB pin open-circuit voltage

-

5

-

V

RFB

FB internal pull-up resistor

-

28

-

kΩ

VFB_BURST_OFF FB voltage when DRV pulse is

skipped

-

0.3

-

V

VFB_BURST_ON FB voltage when DRV pulse is

resumed

-

0.35

-

V

VFB_OLP

overload protection threshold

voltage

-

3.5

-

V

tD_OLP

overload protection deglitch time

-

50

-

ms

KFB

divider ratio from FB to CS

-

5

-

V/V

tSS

soft start time

0 V to 0.4 V VCS

-

4.3

-

ms

Current sense input (CS pin)

tLEB_PWM

leading edge blanking for PWM

comparator

-

320

-

ns

VCS_PWM_MAX maximum current limit threshold for

PWM comparator

0.365

0.4

0.43 V

tLEB_OCF

leading edge blanking for OC fault

protection

-

90

-

ns

VCS_OCF

secondary rectifier (SR) short=circuit

fault protection

0.61

0.65

0.7 V

tD_OCF

SR short-circuit fault deglitch cycles

-

3

-

cycles

VCS_SHORT

CS pin short detection threshold

-

0.04

-

V

tBLK_CS_SHORT CS pin short detection blanking time

Iline = 90 μA

-

4.5

-

μs

tD_CS_SHORT CS pin short fault deglitch cycles

-

3

-

cycles

NEX8080_series

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Nexperia B.V. 2024. All rights reserved

Product data sheet

Rev. 1 — 30 September 2024

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