FAN7621SSJX データシートの表示（PDF） - Fairchild Semiconductor

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FAN7621SSJX

PFM Controller for Half-Bridge Resonant Converters

Fairchild Semiconductor 

Electrical Characteristics (Continued)

TA=25°C and LVCC=17V unless otherwise specified.

Symbol

Parameter

Test Conditions

Min.

Protection Section

VCssH

VCssL

VOVP

VAOCP

tBAO

Beginning Voltage to Discharge CSS

Beginning Voltage to Charge CSS and

Reset Protections

LVCC Over-Voltage Protection

AOCP Threshold Voltage

AOCP Blanking Time(2)

LVCC > 21V

ΔV/Δt=-0.1V/µs

VCS < VAOCP;

ΔV/Δt=-0.1V/µs

0.9

0.16

21

-1.0

VOCP OCP Threshold Voltage

ΔV/Δt=-1V/µs

-0.64

tBO

OCP Blanking Time(2)

VCS < VOCP;

ΔV/Δt=-1V/µs

1.0

tDA

Delay Time (Low-Side) Detecting from

VAOCP to Switch Off(2)

ΔV/Δt=-1V/µs

TSD

Thermal Shutdown Temperature(2)

110

Dead-Time Control Section

DT

Dead Time(3)

Notes:

2. These parameters, although guaranteed, are not tested in production.

3. These parameters, although guaranteed, are tested only in EDS (wafer test) process.

Typ.

1.0

0.20

23

-0.9

50

-0.58

1.5

250

130

350

Max.

1.1

0.24

25

-0.8

-0.52

2.0

400

150

Unit

V

V

V

V

ns

V

μs

ns

°C

ns

© 2009 Fairchild Semiconductor Corporation

FAN7621S • Rev. 1.0.1

6

www.fairchildsemi.com

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