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IR2177SPBF の電気的特性と機能

IR2177SPBFのメーカーはInternational Rectifierです、この部品の機能は「Phase Current Sensor IC」です。


製品の詳細 ( Datasheet PDF )

部品番号 IR2177SPBF
部品説明 Phase Current Sensor IC
メーカ International Rectifier
ロゴ International Rectifier ロゴ 




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IR2177SPBF Datasheet, IR2177SPBF PDF,ピン配置, 機能
Data Sheet No. PD60233 revB
IR2277S/IR2177S(PbF)
Phase Current Sensor IC for AC motor control
Features
Floating channel up to 600 V for IR2177 & 1200 V for
IR2277
Synchronous sampling measurement system
High PWM noise (ripple) rejection capability
Digital PWM output
Fast Over Current detection
Suitable for bootstrap power supplies
Low sensing latency (<7.5 µsec @20kHz)
Ratiometric analog output suitable for DSP A/D interface
Product Summary
VOFFSET (max) IR2277
1200 V
IR2177 600 V
Vin range
±250mV
Bootstrap supply range
8-20 V
Floating channel quiescent
current (max)
Sensing latency (max)
Throughput
Over Current threshold
(max)
2.2 mA
7.5 µsec
(@20kHz)
40ksample/sec
(@20kHz)
±470 mV
Description
IR2177/IR2277 is a high voltage, high speed, single phase current
sensor interface for AC motor drive applications. The current is
sensed by an external shunt resistor. The IC converts the analog
voltage into a time interval through a precise circuit that also
performs a very good ripple rejection showing small group delay.
The time interval is level shifted and given to the output both as a
PWM signal (PO) and analog voltage (OUT). The analog voltage is
proportional to the measured current and is ratio metric with respect
to an externally provided voltage reference. The max throughput is
40 ksample/sec suitable for up to 20 kHz asymmetrical PWM
modulation and max delay is <7.5 µsec (@20kHz). Also a fast over
current signal is provided for IGBT protection.
Typical Connection
Package
(Please refer to
Lead Assignments
for correct pin
configuration. This
diagram shows
electrical
connections only)
1
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1 Page





IR2177SPBF pdf, ピン配列
IR2277S/IR2177S(PbF)
Static Electrical Characteristics
VCC, VBS = 15V unless otherwise specified. Temp=27°C; Vin=Vin+ - Vin.
Pin: VCC, VSS, VB, VS
Symbol
Definition
Min. Typ.
Max.
IQBS Quiescent VBS supply current
1 2.2
IQCC Quiescent VCC supply current
IR2277
ILK Offset supply leakage current
IR2177
6
50
50
Units
mA
mA
µA
Test
Conditions
fsync = 10kHz,
20kHz
fsync = 10kHz,
20kHz
VB = VS =
1200V
VB = VS = 600V
Pin: Vin+, Vin-, Sync, G0, G1, OC
Symbol
Definition
Vinmax
Vinmin
VIH
VIL
Vhy
Ivinp
Maximum input voltage before saturation
Minimum input voltage before saturation
Sync Input High threshold
Sync Input Low threshold
Sync Input Hysteresis
Vin+ input current
Ipu
|Vocth|
RSync
RonOC
G0, G1 pull-up Current
Over Current Activation Threshold
SYNC to VSS internal pull-down
Over Current On Resistance
Min.
2.2
0.2
-18
-20
300
6
25
Typ.
250
-250
Max.
0.8
-6
-8
470
12
75
Units
mV
mV
V
V
V
µA
µA
mV
k
Test
Conditions
See Figure 1
See Figure 1
See Figure 1
fsync = 4kHz to
20kHz
G1, G0 = VB-
5V
@ I = 2mA
See Figure 3
VIL VIH
Vhy
Figure 1: Sync input thresholds
SYNC
Schmitt trigger
VSS
Rsync
Figure 2: Sync input circuit
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3Pages


IR2177SPBF 電子部品, 半導体
IR2277S/IR2177S(PbF)
AC Electrical Characteristics
VBIAS (VCC, VBS) = 15V unless otherwise specified. Temp=27°C.
Symbol
Definition
Min. Typ. Max.
Units
fsync PWM frequency
fout Throughput
PO
OUT
BW Bandwidth (@ -3 dB)
GD Group Delay (input filter)
Dmin Minimum Duty Cycle (Note 1)
4 20 kHz
8 20
2 fsync
ksample/sec
f sync
1
4 fsync
kHz
µs
10 %
Dmax
Maximum Duty Cycle (Note 1)
30
%
tdOCon
De-bounce time of OC
2.7 3.5
4.7
µs
TOCoff
Time to reset OC forcing PO
0.5 µs
Cload
SLOUT
tsettl
MD
Analog output load capacitor
Analog output (OUT) Slew Rate
Output settling time (1%)
Measure Delay
0
0.2
5
SR
Step response (max time to reach
steady state) for PO output
SROUT
Step response (max time to reach
steady state) for OUT output
Note 1: negative logic, see Figure 4 on page 7
Note 2: Cload < 5 nF avoids overshoot
0.51
f sync
0.51
f sync
+
t
settl
50
1
30
0.30
2 fsync
1.3
f sync
1.3
f sync
+ tsettl
nF
V/µs
µs
µs
µs
µs
Test
Conditions
Vin=+Vinmax
Vin=-Vinmin
See Figure 4
See Figure 4
NOTE 2
Cout 5 nF
Cout 5 nF
See
Figure 5
See
Figure 5
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部品番号部品説明メーカ
IR2177SPBF

Phase Current Sensor IC

International Rectifier
International Rectifier


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