IR21571S International Rectifier, IR21571S Datasheet - Page 3

• Manufacturer Part Number: IR21571S
• Description: IC BALLAST CONTROL 16-SOIC
• Manufacturer: International Rectifier
• Type: Ballast Controllerr

Specifications of IR21571S

• Frequency: 45.5 ~ 50.5 kHz
• Current - Supply: 5.5mA
• Current - Output: 500mA
• Voltage - Supply: 11.4 V ~ 15.6 V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 16-SOIC (3.9mm Width)
• Package: 16-lead SOIC Narrow
• Circuit: Fluorescent Ballast IC
• Offset Voltage (v): 625
• Output Source Current Min (ma): 250
• Output Sink Current Min (ma): 400
• Vcc Range (v): 10-25V with UVLO
• Output Voltage Min (v): 10
• Output Voltage Max (v): 25
• Special Ic: Fully Integrated
• Pbf: PbF Option Available
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *IR21571S

Electrical Characteristics
V
R
Note 2:
Note 3:
www.irf.com
Recommended Operating Conditions
For proper operation the device should be used within the recommended conditions.
Symbol Definition
Supply Characteristics
I
V
V
Symbol
CC
DT
QCCUV
V
I
I
CCUV+
I
CLAMP
QCCFLT
QCC
VBSMIN
CC50K
UVHYS
R
I
I
V
V
V
R
= 6.1k , R
RPH
RUN
= V
I
I
I
V
C
I
T
CC
SD
CS
RT
CC
DC
OC
BS
DT
S
T
J
BS
Enough current should be supplied into the VCC lead to keep the internal 15.6V zener clamp diode on this lead
regulating its voltage.
Due to the fact that the RT input is a voltage-controlled current source, the total RT lead current is the sum of all
the parallel current sources connected to that lead. For optimum oscillator current mirror performance, this total
current should be kept between 50 A and 500 A. During the preheat mode, the total current flowing out of the RT
lead consists of the RPH lead current plus the current due to the RT resistor. During the run mode, the total RT lead
current consists of the RUN lead current plus the current due to the RT resistor.
= V
UVLO mode quiescent current
Fault-mode quiescent current
V
V
Quiescent V
V
V
threshold
CC
CC
CC
CC
BIAS
Definition
OC
High side floating supply voltage
Steady state high side floating supply offset voltage
Supply voltage
Supply current
V
C
Deadtime resistance
Over-current (CS+) threshold programming resistance
R
RPH lead current (Note 3)
RUN lead current (Note 3)
Shutdown lead current
Current sense lead current
Junction temperature
Minimum required VBS voltage for proper HO functionality
zener clamp voltage
supply undervoltage lockout hysteresis
supply current, f= 50kHz
DC
T
T
supply undervoltage positive going
= 20.0k
lead capacitance
lead current (Note 3)
= 14V +/- 0.25V, R
lead voltage
CC
supply current
V
CS
= 0.5V, V
T
= 40.0k , C
SD
= 0.0V, C
T
= 470 pF, RPH and RUN leads no connection, V
L
Min.
= 1000pF, T
10.5
1.5
50
75
2.9
4.0
14.5
Typ.
11.4
1.8
150
200
3.8
5.5
15.6
A
= 25
IR21571 (S) & (PbF)
o
Max.
C unless otherwise specified.
12.4
2.2
300
300
4.3
7.0
16.5
V
V
Note 2
CC
Min.
CCUV+
-500
-3.0
220
-40
1.0
—
—
-1
-1
0
0
0
- 0.7
Units
mA
V
A
V
V
V
V
Test Conditions
R
5.6k , C
R
Max.
CLAMP
CLAMP
VCC
CC
I
connected to COM
600
450
450
125
T
-50
V
SD=5V, CS = 2V or
Tj > T
T
CC
—
10
50
—
1
1
5
CC
no connection, C
=36k , R
rising from 0V
= 10mA
CPH
< V
SD
T
=220pF
CCUV-
= 0.0V,
DT
Units
mA
k
uA
mA
pF
o
V
V
V
C
=
T
3