IRS2548D Ver la hoja de datos (PDF) - International Rectifier
Número de pieza
componentes Descripción
Fabricante
IRS2548D Datasheet PDF : 22 Pages
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IRS2548D
Electrical Characteristics (cont’d)
VCC = VBS = VBIAS=14V +/- 0.25V, CLO = CHO = CPFC = 1000pF, RFMIN = 42.2kOhm,
VENN = VCOMP = VCS = VOC = VBUS = VZX = 0V, TA=25C unless otherwise specified.
Symbol
Definition
Min Typ Max Units Test Conditions
Floating Supply Characteristics
IBS
VBS Supply Current
---
VBSUV+
VBS Supply Undervoltage Positive Going
Threshold
8.0
VBSUV-
VBS Supply Undervoltage Negative
Going Threshold
7.0
ILKVS VS Offset Supply Leakage Current
---
0.9 1.3 mA MODE=RUN
9.0 10.0
8.0 9.0
VBS rising from
V
0V
VBS falling from
14V
---
50
uA VB = VS = 600V
PFC Error Amplifier Characteristics
ICOMP COMP Pin OTA Error Amplifier Output
SOURCE Current Sourcing
ICOMP COMP Pin OTA Error Amplifier Output
SINK Current Sinking
VCOMPOH
OTA Error Amplifier Output Voltage
Swing (high state)
VCOMPOL
OTA Error Amplifier Output Voltage
Swing (low state)
VCOMPFLT
OTA Error Amplifier Output Voltage in
Fault Mode
--- 30 ---
--- -30 ---
--- 12.5 ---
--- 0.4 ---
---
0
---
MODE = RUN
uA VVBUS = 3.5V
VCOMP=4.0V
MODE = RUN
VVBUS = 4.5V
VCOMP=4.0V
VBUS=3.5V
V ICOMP=ICOMP_
SOURCE - 5uA
VBUS=5.0V
ICOMP=ICOMP_
SINK + 5uA
VBUS=4.0V
PFC Control Characteristics
VVBUS
REG
VBUS Internal Reference Voltage
VVBUSOV
VVBUSOV
HYS
VZX
VBUS Over-voltage Comparator
Threshold
VBUS Over-voltage Comparator
Hysteresis
ZX Pin Threshold Voltage
VZXhys ZX pin Comparator Hysteresis
VZXclamp ZX pin Clamp Voltage (high state)
tBLANK OC pin current-sensing blank time
tWD PFC Watch-dog Pulse Interval
3.93 4.03 4.13
4.1 4.3 4.5
V VCOMP = 4.0V
50 150 300 mV
1.8 2.0 2.2 V
--- 300 --- mV
--- 6.7 ---
--- 300 ---
--- 400 ---
V IZX = 1mA
ns
VBUS=4.0V
VCOMP=4.0V
us
ZX = 0, VCOMP
= 4.0V
PFC Protection Circuitry Characteristics
VOCTH+ OC Pin Over-current Sense Threshold
1.1 1.2 1.3
VBUS=VCOMP
=4.0V
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