參數(shù)資料
型號(hào): IRU3073
廠商: International Rectifier
英文描述: SYNCHRONOUS PWM CONTROLLER WITH OVER-CURRENT PROTECTION / LDO CONTROLLER
中文描述: 同步PWM控制器,帶有過電流保護(hù)/ LDO控制器
文件頁數(shù): 2/21頁
文件大?。?/td> 236K
代理商: IRU3073
2
Rev. 1.0
09/17/03
IRU3073
www.irf.com
ABSOLUTE MAXIMUM RATINGS
Vcc Supply Voltage ................................................... -0.5 - 25V
VcL, VcH Supply Voltage .......................................... -0.5 - 25V
Storage Temperature Range ...................................... -65°C To 150°C
Operating Junction Temperature Range ..................... 0°C To 125°C
CAUTION:
Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device.
PARAMETER
Feedback Voltage
Fb Voltage
Fb Voltage Line Regulation
Reference Voltage
Ref Voltage Initial Accuracy
Drive Current
UVLO
UVLO Threshold - Vcc
UVLO Hysteresis - Vcc
UVLO Threshold - VcH
UVLO Hysteresis - VcH
UVLO Threshold - Fb1
UVLO Hysteresis - Fb1
Supply Current
Vcc Dynamic Supply Current
Vc Dynamic Supply Current
Vcc Static Supply Current
Vc Static Supply Current
Soft-Start Section
Charge Current
SYM TEST CONDITION MIN TYP MAX UNITS
5<Vcc<12
Note 1
Supply Ramping Up
Supply Ramping Up
Fb Ramping Down
Freq=200KHz, C
L
=1500pF
Freq=200KHz, C
L
=1500pF
SS=0V
SS=0V
SS=0V
0.784
0.784
3.9
3.3
0.3
10
0.8
0.2
0.8
2
4.4
0.25
3.5
0.2
0.4
0.1
5
5
3.5
3
25
0.816
0.625
0.816
4.8
3.7
0.5
10
15
10
5
30
V
%
V
μ
A
V
V
V
V
V
V
mA
mA
mA
mA
μ
A
θ
JA
=112
8
C/W
4
3
2
1
7
6
5
11
13
12
14
10
15
9
16
8
Fb2
Drv2
Rt
SS/SD
Comp
Fb1
V
P1
V
REF
OCSet
VcH
HDrv
Gnd
PGnd
LDrv
VcL
Vcc
PACKAGE INFORMATION
16-PIN PLASTIC QSOP NB (Q)
V
FB
L
REG
V
REF
I
REF
UVLO V
CC
UVLO V
C
H
UVLO Fb1
Dyn I
CC
Dyn I
C
I
CCQ
I
CQ
SS I
B
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over Vcc=5V, VcL=VcH=12V and T
A
=0°C to 70°C. Low duty
cycle pulse testing is used which keeps junction and case temperatures equal to the ambient temperature.
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