IR21571 Просмотр технического описания (PDF) - International Rectifier

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производитель

IR21571

FULLY INTEGRATED BALLAST CONTROL IC

International Rectifier 

IR21571(S)

Electrical Characteristics (cont.)

VCC = VBS = VBIAS = 14V +/- 0.25V, RT = 40.0kΩ, CT = 470 pF, RPH and RUN leads no connection, VCPH = 0.0V,

RDT = 6.1kΩ, ROC = 20.0kΩ, VCS = 0.5V, VSD = 0.0V, CL = 1000pF, TA = 25oC unless otherwise specified.

RUN Characteristics

Symbol Definition

IRUNLK Open circuit RUN lead leakage current

VRUNFLT Fault-mode RUN lead voltage

Min.

—

—

Typ.

0.01

0

Max.

0.1

50

Units

µA

mV

Test Conditions

VRUN = 5V

SD = 5V, CS = 2V,

or Tj > TSD

Protection Circuitry Characteristics

Symbol Definition

VSD+

VSDHYS

VCS+

VCS-

TCS

VDC+

VDC-

TSD

Rising shutdown lead threshold voltage

Shutdown pin threshold hysteresis

Over-current sense threshold voltage

Under-current sense threshold voltage

Over-current sense propogation delay

Low VBUS/rectified line input upper threshold

Low VBUS/rectified line input lower threshold

Thermal shutdown junction temperature

Gate Driver Output Characteristics

Min.

1.85

100

0.99

0.15

100

5.0

2.85

150

Typ.

2.0

150

1.10

0.2

160

5.20

3.0

160

Max.

2.2

300

1.21

0.25

400

5.6

3.2

170

Units Test Conditions

V

mV

V

nsec Delay from CS to LO

V

oC

Note 4

Symbol Definition

VOL

VOH

tr

tf

Low-level output voltage

High level output voltage

Turn-on rise time

Turn-off fall time

Min.

—

—

55

35

Typ.

0

0

85

45

Max.

100

100

150

100

Units Test Conditions

mV

Io = 0

VBIAS - VO, Io = 0

nsec

Note 4: When the IC senses an overtemperature condition (Tj > 160ºC), the IC is latched off. In order to reset this

Fault Latch, the SD lead must be cycled high and then low, or the VCC supply to the IC must be cycled below

the falling undervoltage lockout threshold (VCCUV-).

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