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IR3527 の電気的特性と機能

IR3527のメーカーはInternational Rectifierです、この部品の機能は「Dual Phase IC Combined」です。


製品の詳細 ( Datasheet PDF )

部品番号 IR3527
部品説明 Dual Phase IC Combined
メーカ International Rectifier
ロゴ International Rectifier ロゴ 




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IR3527 Datasheet, IR3527 PDF,ピン配置, 機能
IR3527
DATA SHEET
XPHASE3TM DUAL PHASE IC
DESCRIPTION
The IR3527 Dual Phase IC combined with an IR XPhase3TM Control IC provides a full featured and flexible
way to implement multiphase power solutions. The Control IC provides overall system control and interfaces
with any number of IR3527 Phase ICs which each drive and monitor 2 phases of a Synchronous Buck
converter.
The IR3527 implement an independent power savings function for each power stage and sequential phase
timing for use in single output multiphase converters. When power saving mode is enabled, the power stage
will disable its output thus eliminating its switching loss while proper converter operation is maintained by the
single power stage or in conjunction with other converter power stages. The IR3527 current sense amplifiers
remain active when in power savings to support adaptive voltage positioning.
FEATURES
x 7V/1.3A gate drivers (2.6A GATEL sink current)
x Converter output voltage up to 5.1 V (Limited to VCCL-1.4V)
x Loss-less inductor current sensing
x Feed-forward voltage mode control
x Integrated boot-strap synchronous PFET
x Self-calibration of PWM ramp, current sense amplifier, and current share amplifier
x Single-wire bidirectional average current sharing
x Only three external components per phase, plus common decoupling capacitors
x Power State Indicator (PSI) interface provides the capability to maximize the efficiency at light loads.
x Debugging function isolates phase from the converter
x Small thermally enhanced 24L 4 x 4mm MLPQ package
x RoHS compliant
VIN (12V)
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CCS1
RCS1
CCS2
RCS2
3 Wire
Analog
Bus
Power
Savings
Control
3 Wire
Digital
Phase
Timing
IC Bias
(7V)
Page 1 of 20
1 CSIN1+
2 EAIN
3 ISHARE
4 DACIN
5 PSI1
6 PSI2
IR3527 DUAL
PHASE IC
BOOST2
VCCL2
GATEL2
PGND
GATEL1
VCCL1
18
17
16
15
14
13
CBST2
CBST1
L2
L1
CVCCL
Figure 1 – IR3527 Application Circuit
VOUT+
C OU T
VOUT-
CIN
V3.0

1 Page





IR3527 pdf, ピン配列
IR3527
19 GATEH2 Phase2 High-side driver output and input to GATEL2 non-overlap comparator.
20 SW2 Return for Phase2 high-side driver and reference for GATEL2 non-overlap
comparator.
21 VCC Supply for internal IC circuits. Input to PWM feed-forward.
22 CSIN2+ Phase2 current sense amplifier non-inverting input and input to debug comparator
23 CSIN2- Phase2 current sense amplifier inverting input
24 CSIN1- Phase1 current sense amplifier inverting input
25 LGND Ground for internal IC circuits. IC substrate is connected to this pin.
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed below may cause permanent damage to the device. These are stress ratings only
and functional operation of the device at these or any other conditions beyond those indicated in the operational
sections of the specifications are not implied. All voltages are absolute voltages referenced to the LGND pin.
Operating Junction Temperature…………….. 0 to 150oC
Storage Temperature Range………………….-65oC to 150oC
MSL Rating………………………………………2
Reflow Temperature…………………………….260oC
PIN #
1
2
3
4
5
6
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8
9
10
11
12
13
14
15
16
17
18
PIN NAME
CSIN1+
EAIN
ISHARE
DACIN
PSI1
PSI2
PHSIN
PHSOUT
CLKIN
SW1
GATEH1
BOOST1
VCCL1
GATEL1
PGND
GATEL2
VCCL2
BOOST2
Page 3 of 20
VMAX
8V
8V
8V
3.3V
8V
8V
8V
8V
8V
34V
40V
40V
8V
8V
0.3V
8V
8V
40V
VMIN
-0.3V
-0.3V
-0.3V
-0.3V
-0.3V
-0.3V
-0.3V
-0.3V
-0.3V
-0.3V DC, -5V for
100ns
-0.3V DC, -5V for
100ns
-0.3V
-0.3V
-0.3V DC, -5V for
100ns
-0.3V
-0.3V DC, -5V for
100ns
-0.3V
-0.3V
ISOURCE
1mA
1mA
1mA
1mA
1mA
1mA
1mA
2mA
1mA
3A for 100ns,
100mA DC
3A for 100ns,
100mA DC
1A for 100ns,
100mA DC
n/a
5A for 100ns,
200mA DC
5A for 100ns,
200mA DC
5A for 100ns,
200mA DC
n/a
1A for 100ns,
100mA DC
ISINK
1mA
1mA
1mA
1mA
1mA
1mA
1mA
2mA
1mA
n/a
3A for 100ns,
100mA DC
3A for 100ns,
100mA DC
5A for 100ns,
200mA DC
5A for 100ns,
200mA DC
n/a
5A for 100ns,
200mA DC
5A for 100ns,
200mA DC
3A for 100ns,
100mA DC
V3.0


3Pages


IR3527 電子部品, 半導体
IR3527
Current Sense Amplifiers
CSINx+/- Bias Current
CSINx+/- Bias Current
Mismatch
Note 1
Input Offset Voltage
CSINx+ = CSINx- = DACIN. Measure input
referred offset from DACIN
Gain
0.5V ” 9 '$&,1  9
Unity Gain Bandwidth
Slew Rate
C(ISHARE)=10pF. Measure at ISHARE.
Note 1
Note 1
Differential Input Range
Differential Input Range
0.8V ” 9 '$&,1 ” 9 1RWH 
0.5V ” 9 '$&,1  0.8V, Note 1
Common Mode Input
Range
Rout at TJ = 25 oC
Rout at TJ = 125 oC
ISHARE Source Current
Note 1
Note 1
ISHARE Sink Current
Share Adjust Amplifiers
Input Offset Voltage
Note 1
Gain
CSINx+ = CSINx- = DACIN.
Unity Gain Bandwidth
Note 1
PWM Ramp Floor Voltage
ISHARE unconnected
Measured Relative to DACIN
Maximum PWM Ramp
Floor Voltage
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Minimum PWM Ramp Floor
Voltage
ISHARE = DACIN - 200mV
Measured relative to FLOOR with ISHARE
unconnected
ISHARE = DACIN + 200mV
Measured relative to FLOOR with ISHARE
unconnected
Synchronous Rectification Disable Comparators
Threshold Voltage
The ratio of V(CSINx-) / V(DACIN), below
which V(GATELx) is always low.
Negative Current Comparators
Input Offset Voltage
Note 1
Propagation Delay Time
Bootstrap Diodes
Apply step voltage to V(CSINx+) – V(CSINx-).
Measure time to V(GATELx)< 1V.
Forward Voltage
I(BOOSTx) = 30mA, VCCL=6.5V
Debug Comparators
Threshold Voltage
Compare to V(VCCLx)
-200
-50
-1
30
4.8
-10
-5
0
2.3
3.6
.5
.5
-3
3.6
4
-116
120
-220
66
-16
100
360
-250
0
0
32.5
6.8
6
3.0
4.7
1.7
1.7
0
4.7
8.5
0
180
-160
75
0
200
520
-150
200 nA
50 nA
1 mV
35 V/V
8.8 MHz
50
50
Note2
V/Ps
mV
mV
V
3.7 kŸ
5.4 kŸ
2.9 mA
2.9 mA
3
5.8
17
+116
240
mV
V/V
kHz
mV
mV
-100 mV
86 %
16 mV
400 ns
960 mV
-50 mV
Page 6 of 20
V3.0

6 Page



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