IR21571_15 Datasheet, PDF (4/18 Pages) International Rectifier – FULLY INTEGRATED BALLAST CONTROL IC

IR21571(S) & (PbF)
Electrical Characteristics (cont.)
V_CC = V_BS = V_BIAS = 14V +/- 0.25V, R_T = 40.0kΩ, C_T = 470 pF, RPH and RUN leads no connection, V_CPH = 0.0V,
R_DT = 6.1kΩ, R_OC = 20.0kΩ, V_CS = 0.5V, V_SD = 0.0V, C_L = 1000pF, T_A = 25^oC unless otherwise specified.
Floating Supply Characteristics
Symbol Definition
I_QBS0 Quiescent V_BS supply current
I_QBS1 Quiescent V_BS supply current
I_LK Offset supply leakage current
Min. Typ. Max. Units Test Conditions
0
0
15
µA
V_HO = V_S
5
35
65
V_HO = V_B
—
—
50
µA
V_B = V_S = 600V
Oscillator I/O Characteristics
Symbol Definition
fosc
Oscillator frequency
d
VCT+
VCT-
VCTFLT
Oscillator duty cycle
Upper CT ramp voltage threshold
Lower CT ramp voltage threshold
Fault-mode CT lead voltage
V_RT
RT lead voltage
VRTFLT Fault-mode RT lead voltage
tdlo
tdho
LO output deadtime
HO output deadtime
Min.
45.5
49.5
3.7
1.85
—
Typ.
48
50
4.0
2.0
0
1.85 2.0
—
0
2
2.3
2
2.3
Max.
50.5
50.5
4.3
2.15
50
2.15
50
2.5
2.5
Units Test Conditions
kHz ^{RT = 16.9kΩ, RDT =}
6.1kΩ, C_T=470pF
%
V
mV
V
mV
µsec
SD = 5V, CS = 2V,
or Tj > TSD
SD = 5V, CS = 2V,
or Tj > TSD
Preheat Characteristics
Symbol Definition
I_CPH
CPH lead charging current
V_CPHIGN CPH lead lgnition mode threshold voltage
V_CPHRUN CPH lead run mode threshold voltage
V_CPHCLMP CPH lead clamp voltage
V_CPHFLT Fault-mode CPH lead voltage
Min.
0.72
3.7
4.7
9.0
—
Typ.
0.85
4.0
5.15
9.5
0
Max.
0.98
4.3
5.45
10.5
300
Units Test Conditions
µA
V_CPH = 5.3V
V
I_CPH = 1mA
mV
SD = 5V, CS = 2V,
or Tj > TSD
RPH Characteristics
Symbol Definition
I_RPHLK Open circuit RPH lead leakage current
V_RPHFLT Fault-mode RPH lead voltage
Min.
—
—
Typ.
0.01
0
Max.
0.1
50
Units Test Conditions
µA V_RPH= 5V,V_RPH= 6V
mV
SD = 5V, CS = 2V,
or Tj > TSD
4
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