IRS2573D データシートの表示（PDF） - International Rectifier
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IRS2573D Datasheet PDF : 28 Pages
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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
Fault Counter Characteristics
TCLK
CLK pin oscillation period
--- 12.0 --- ms CTCLK = 0.12uF
VTCLK+
VTCLK-
TCLK pin upper threshold voltage
TCLK pin lower threshold voltage
--- 4.0 ---
V
--- 2.0 ---
ITCLK
SOURCE
ITCLK
SINK
TCLK pin sourcing current
TCLK pin sinking current
--- 40 ---
VTCLK = 1.5V
uA
--- 40 ---
VTCLK = 4.5V
tGOOD GOOD COUNTER time
--- 2850 ---
CTIGN = 1uF,
VVSENSE = 0.8V
tUVFAULT
VSENSE pin under-voltage fault counter
time
187
197
207
sec CTCLK = 0.12uF,
VVSENSE < VOV(1/7.5)
tOVFAULT
VSENSE pin over-voltage fault counter
time
737 787 837
CTCLK = 0.12uF,
VVSENSE > VOV(2/5)
nEVENTS
VSENSE pin fast transient under-voltage
fault events
--- 16384 ---
VVSENSE = pulses
(ton=10us, toff=5us,
ampl.= 0.8V to COM)
VRST+
VRST-
RST pin rising threshold voltage
RST pin falling threshold voltage
---
1.5
---
---
2.5
---
V
MODE = FAULT
MODE = UVLO
Reference Current Characteristics
VIREF
IREF pin reference voltage
1.95 2.00 2.05 V
RIREF = 20kOhm
Voltage Sensing Characteristics
VOV
VOV(2/5)
VSENSE pin buck voltage limitation
threshold
VSENSE pin over-voltage threshold
2.3 2.55 2.8
0.92 1.05 1.18
V ROV = 50kOhm
VOV(1/7.5) VSENSE pin under-voltage threshold
0.298 0.35 0.403
Current Limitation Characteristics
VISENSE ISENSE pin current limitation threshold
460 520 580 mV ROC = 10kOhm
Gate Driver Output Characteristics (HO1, HO2, LO1, LO2, BUCK, IGN pins)
VOL
VOH
Low-Level output voltage
High-Level output voltage
--- COM ---
--- VCC ---
V IO = 0
Tr
Turn-On rise time
Tf
Turn-Off fall time
---
120 220
ns
--- 50 100
IO+
HO1, HO2, LO1, LO2, IGN Source
Current
--- 180 ---
IO-
HO1, HO2, LO1, LO2, IGN Sink Current
--- 260 --- mA
IO+
BUCK Source Current
--- 180 ---
VICOMP = VPCOMP = 10V
IO-
BUCK Sink Current
--- 400 ---
Bootstrap MOSFET Characteristics (VB1, VB2 pins)
VB_ON VB voltage when BS FET is on
13.0 13.7 ---
V
IB_CAP VB source current when BS FET is on
--- 55 ---
VBS=0V
IB_10V
VB source current when BS FET is on
---
12
---
mA VVB = 10V
CT = 0V, CT = 6V
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