IR21593SPBF International Rectifier, IR21593SPBF Datasheet - Page 9

• Manufacturer Part Number: IR21593SPBF
• Description: IC BALLAST CONTROL DIM 16-SOIC
• Manufacturer: International Rectifier
• Type: Ballast Controllerr

Specifications of IR21593SPBF

• Frequency: 30 ~ 230 kHz
• Current - Supply: 10mA
• Voltage - Supply: 12.5 V ~ 15.6 V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / Rohs Status: RoHS Compliant part

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(Note:
Please refer to
"Typical Connection"
diagram, page 1)
External Components Selection Procedure
The minimum operating frequency must
be lower than f
lower). R
so R
Set R
on pin VDC will exceed 5.1 volts at the
desired line turn-on voltage.
R
which corresponds to the maximum
ignition voltage across the lamp.
R
corresponding to maximum lamp power
when V
after R
During preheat, an internal 1.3 µA
current source at pin CPH charges
external capacitor CCPH. Preheat
mode ends when VCPH exceeds 5.1
volts.
R
corresponding to minimum lamp
power when V
be set after R
The voltage at pin IPH is the reference
for amplitude current control during
preheat mode. R
R
CS
MAX
MIN
FMIN
FMIN
sets the maximum ignition current
sets the lower phase boundary
sets the upper phase boundary
VAC
.
FMIN
DIM
must be set first.
FMIN
and R
= 5 volts. R
and R
also programs I
FMIN
100%
DIM
VDC
MIN
.
= 0 volts. R
IPH
of f
such that the voltage
.
must be set after
IGN
MAX
(whichever is
must be set
MIN
MIN
and I
must
IPH
,
Calculate ϕ
Use Graph 1 or Graph 2
R
Select & Calculate R
Use Graph 8 to find I
VD
C
R
Calculate R
Find V
PULL
Find I
then calculate R
C
=
Use Equation 15
Calculate C
Calculate R
Calculate R
R
Calculate R
CPH
Calculate R
1
Select R
−
−
IP
H

 

UP
R
R
MIN
VAC
VAC
CS
MIN
=
MIN
BEGIN
=
MIN
=
(
=
IR21592/IR21593
I
2
(Equations 8 & 9)
VAC
=
I
6 .
(Graph 3)
5
5
H
P
(Graph 9)
TUR
TUR
1
IGN
1 .
1 .
N
N
I
V
PK
e
I
I
6 .
QCCUV
FMIN
PULL-UP
MIN
MIN
IP
H
−
PK
TURN
⋅
−
−
R
7
MAX
VDC
CPH
O
N
O
N
CS
MIN
)
C
S
−
t

 

IPH
PH
ON
R
IPH
:
VA
IPH
C
,
R
R
R
R
R
R
C
FMIN
VDC
CS
MIN
MAX
IPH
CPH
( S ) & ( PbF )
f
VAC
ϕ
I
MIN
ϕ
t
IGN
I
PH
PH
MIN
MAX
TURN-ON
P
P
V
V
LAMP
LAMP
IGN
PH
9