參數(shù)資料
型號(hào): IRS2548DSPBF
廠商: International Rectifier
文件頁數(shù): 7/22頁
文件大小: 320K
描述: IC PFC
特色產(chǎn)品: IRS2548D LED Driver
標(biāo)準(zhǔn)包裝: 55
系列: *
   
IRS2548D
 
 
www.irf.com
?2011 International Rectifier
7
Electrical Characteristics (contd)
V
CC
= V
BS
= V
BIAS
=14V +/- 0.25V, C
LO
= C
HO
= C
PFC
= 1000pF, RFMIN = 42.2kOhm,
VENN
 
= V
COMP
= V
CS
= V
OC
= VBUS = VZX = 0V, T
A
=25C unless otherwise specified. 
Symbol
Definition
Min     Typ
Max   Units   Test Conditions
Floating Supply Characteristics 
I
BS
 
V
BS
 Supply Current
---
0.9
1.3
mA    MODE=RUN
V
BSUV+
 
V
BS
 Supply Undervoltage Positive Going
Threshold
8.0
9.0     10.0
V
BS
 rising from
0V
V
BSUV-
 
V
BS
 Supply Undervoltage Negative
Going Threshold
7.0
8.0
9.0
V
V
BS
 falling from
14V
I
LKVS
     V
S
Offset Supply Leakage Current
---
---
50
uA     V
B
 = V
S
 = 600V
PFC Error Amplifier Characteristics 
ICOMP
SOURCE
 
COMP Pin OTA Error Amplifier Output
Current Sourcing
---
30
---
uA
MODE = RUN
V
VBUS
= 3.5V
VCOMP=4.0V
I
COMP
SINK
 
COMP Pin OTA Error Amplifier Output
Current Sinking
---
-30
---
 
MODE = RUN
V
VBUS
= 4.5V
VCOMP=4.0V
V
COMPOH
 
OTA Error Amplifier Output Voltage
Swing (high state)
---
12.5
---
V
VBUS=3.5V
ICOMP=ICOMP_
SOURCE - 5uA
V
COMPOL
 
OTA Error Amplifier Output Voltage
Swing (low state)
---
0.4
---
 
VBUS=5.0V
ICOMP=ICOMP_
SINK + 5uA
VCOMPFLT
OTA Error Amplifier Output Voltage in
Fault Mode
---
0
---
 
VBUS=4.0V
PFC Control Characteristics
 
V
VBUS
REG
 
VBUS Internal Reference Voltage
3.93    4.03    4.13
V
VBUSOV
 
VBUS Over-voltage Comparator
Threshold
4.1
4.3
4.5
 
V
V
VBUSOV
HYS
 
VBUS Over-voltage Comparator
Hysteresis
50
150     300     mV
V
COMP
= 4.0V
V
ZX
 
ZX Pin Threshold Voltage
1.8
2.0
2.2
V     
V
ZXhys
     ZX pin Comparator Hysteresis
---
300
---
mV    
V
ZXclamp
   ZX pin Clamp Voltage (high state)
---
6.7
---
V     I
ZX
 = 1mA
t
BLANK
     OC pin current-sensing blank time
---
300
---
ns
VBUS=4.0V
VCOMP=4.0V
t
WD
 
PFC Watch-dog Pulse Interval
---
400
---
us
ZX = 0, V
COMP
 
= 4.0V
PFC Protection Circuitry Characteristics
 
V
OCTH+
    OC Pin Over-current Sense Threshold
1.1
1.2
1.3
 
VBUS=VCOMP
=4.0V
 
 
 
 
 
 
 
 
 
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