IRS2573DSPBF_15 Datasheet, PDF (8/28 Pages) International Rectifier – HID BALLAST CONTROL IC

IRS2573D
Electrical Characteristics
VCC = VB1S1 = VB2S2 = VBBSB = VBIAS = 14V +/- 0.25V, CLO1 = CLO2 = CIGN = CHO1 = CHO2 = _BUCK =
1000pF, RIREF = 20kOhm, ROC = 10kOhm, ROV = 50kOhm, VRST = COM, CS = VSB, CT = TIGN = TCLK =
VSENSE = ISENSE = PCOMP = ICOMP = ZX = TOFF = COM, TA = 25C unless otherwise specified.
Symbol
Definition
Min Typ Max Units Test Conditions
Buck Control Characteristics
IPCOMP OTA1 Error Amplifier Output Current
SOURCE Sourcing
28 40 52
VPCOMP=7V
VVSENSE = VISENSE =
VVSENSE _PCOMP=0uA – 0.3V
IPCOMP
SINK
OTA1 Error Amplifier Output Current Sinking
28
IICOMP OTA2 Error Amplifier Output Current
SOURCE Sourcing
28
40
40
VPCOMP=7V
52
VVSENSE = VISENSE =
uA
VVSENSE_PCOMP=0uA + 0.3V
VICOMP=7V
52
VISENSE =
VISENSEICOMP=0uA – 0.5V
IICOMP
SINK
OTA2 Error Amplifier Output Current Sinking
28
40
52
VCOMPOH
OTA1,2 Error Amplifier Output Voltage
Swing (high state)
--- 12.5 ---
VICOMP=7V
VISENSE =
VISENSEICOMP=0uA + 0.5V
IPCOMP =
V
IPCOMP_SOURCE – 10uA,
or IICOMP =
IICOMP_SOURCE – 10uA
KMULT
Internal Multiplier Gain
K_MULT = VIREF/ ( 2x VVSENSE x VISENSE )
---
2.0
---
VVSENSE =
VVSENSE(PCOMP = 0uA),
VISENSE = 500mV
PSENSE VVSENSE x VISENSE
0.465 0.50 0.535
VVSENSE = 1V
VISENSE = 500mV
VPCOMPTH PCOMP pin buck on/off threshold voltage
--- 0.2 ---
VICOMP = 2V
VICOMPTH- _{ICOMP pin buck off threshold voltage}
VICOMPTH+ _{ICOMP pin buck on threshold voltage}
--- 0.2 ---
--- 0.5 ---
V
VPCOMP = 2V
VPCOMP = 2V
VZX
ZX pin Comparator Threshold Voltage
--- 2.0 ---
VPCOMP = VICOMP = 7V
VZXhys ZX pin Comparator Hysteresis
---
400
---
mV VPCOMP = VICOMP = 7V
VZXclamp ZX pin Clamp Voltage (high state)
--- 6.5 ---
V IZX = 5mA
ITOFF
TOFF pin Output Current
91 110 129 uA VBUCK = VSB
VTOFF
TOFF pin Comparator Threshold Voltage 1.93 2.05 2.17
V
VPCOMP = VICOMP = 7V
CTOFF = 1nF
Full-Bridge Oscillator Characteristics
fOSC
Full-Bridge oscillator frequency
160 200 240 Hz
d
tdLO1,2
tdHO1,2
Oscillator duty cycle
LO1, LO2 output deadtime
HO1, HO2 output deadtime
49
0.8
50
1.2
51
1.5
% _{CCT = 47nF}
us
0.8 1.2 1.5
VCT+
VCT-
CT pin upper threshold voltage
CT pin lower threshold voltage
--- 4.0 ---
V
--- 2.0 ---
ICT
SOURCE
ICT
SINK
CT pin sourcing current
CT pin sinking current
--- 80 ---
VCT = 1.5V
uA
--- 80 ---
VCT = 4.5V
Ignition Timer Characteristics
TIGNON IGN pin on-time
TIGNOFF IGN pin off-time
18
57
21
64
24
71
sec
CTIGN = 1uF
MODE = IGN
VTIGN+
VTIGN-
TIGN pin upper threshold voltage
TIGN pin lower threshold voltage
--- 4.0 ---
V
--- 2.0 ---
ITIGN
SOURCE
ITIGN
SINK
TIGN pin sourcing current
TIGN pin sinking current
---
6
---
VTIGN = 1.5V
uA
---
6
---
VTIGN = 4.5V
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