iru3048 International Rectifier Corp., iru3048 Datasheet - Page 2

• Manufacturer Part Number: iru3048
• Description: Dual Synchronous Pwm Controller Circuitry And Ldo Controller
• Manufacturer: International Rectifier Corp.

IRU3048
ABSOLUTE MAXIMUM RATINGS
Vcc Supply Voltage .................................................. 25V
VcH1=VcH2 Supply Voltage ......................................
Storage Temperature Range ...................................... -65°C To 150°C
Operating Junction Temperature Range .....................
PACKAGE INFORMATION
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over Vcc=5V, VcH1=VcH2=12V, T
values refer to T
the ambient temperature.
PARAMETER
Reference Voltage
Fb Voltage
Fb Voltage Line Regulation
UVLO
UVLO Threshold - Vcc
UVLO Hysteresis - Vcc
UVLO Threshold - VcH1
UVLO Hysteresis - VcH1
UVLO Threshold - VcH2
UVLO Hysteresis - VcH2
UVLO Threshold - Fb
UVLO Hysteresis - Fb
Supply Current
Vcc Dynamic Supply Current
VcH1 Dynamic Supply Current
VcH2 Dynamic Supply Current
Vcc Static Supply Current
VcH1 Static Supply Current
VcH2 Static Supply Current
Soft-Start Section
Charge Current
2
16-PIN PLASTIC TSSOP (F)
Comp1
Comp2
HDrv2
LDrv2
PGnd
VcH2
Gnd
Fb2
1
2
3
4
5
6
7
8
u
A
JA
=25°C. Low duty cycle pulse testing is used which keeps junction and case temperatures equal to
TOP VIEW
=908C/W
16
15
14
13
12
10
11
9
Fb1
SS
Fb3
V
VcH1
HDrv1
LDrv1
Vcc
OUT3
UVLO
UVLO
UVLO
Dyn I
Dyn I
UVLO
Dyn I
I
I
SYM
C
C
L
SS
I
V
H1Q
H2Q
CCQ
REG
FB
V
V
C
C
IB
V
CC
H1
H2
FB
C
C
CC
H1
H2
5<Vcc<12
Supply Ramping Up
Supply Ramping Up
Supply Ramping Up
Fb Ramping Down
Freq=200KHz, C
Freq=200KHz, C
Freq=200KHz, C
SS=0V
SS=0V
SS=0V
SS=0V
16-PIN PLASTIC SOIC NB (S)
www.irf.com
TEST CONDITION
Comp1
Comp2
HDrv2
LDrv2
PGnd
VcH2
Gnd
Fb2
u
0°C To 125°C
30V (not rated for inductive load)
1
2
3
4
5
6
7
8
JA
TOP VIEW
=858C/W
L
L
L
=1500pF
=1500pF
=1500pF
16
15
14
13
12
11
10
9
Fb1
SS
Fb3
V
VcH1
HDrv1
LDrv1
Vcc
OUT3
1.225
MIN
15
1.250
TYP
0.25
0.2
4.2
3.5
0.2
3.5
0.2
0.6
0.1
3.5
25
5
7
7
2
2
A
=0 to 70°C. Typical
1.275
MAX
30
UNITS
09/12/02
Rev. 1.7
mA
mA
mA
mA
mA
mA
mA
%
V
V
V
V
V
V
V
V
V