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IR22771S の電気的特性と機能

IR22771S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 IR22771S
部品説明 Phase Current Sensor IC
メーカ International Rectifier
ロゴ International Rectifier ロゴ 




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IR22771S Datasheet, IR22771S PDF,ピン配置, 機能
Data Sheet No. PD60234 revB
IR22771S/IR21771S(PbF)
Phase Current Sensor IC for AC motor control
Features
Floating channel up to 600V for IR21771 and 1200V for
IR22771
Synchronous sampling measurement system
www.DataSheet4U.comHigh PWM noise (ripple) rejection capability
Digital PWM output
Fast Over Current detection
Suitable for bootstrap power supplies
Low sensing latency (<7.5 µsec @20kHz)
Product Summary
VOFFSET (max)
IR22771
IR21771
Vin range
Bootstrap supply range
Floating channel quiescent
current (max)
Sensing latency (max)
Throughput
Over Current threshold (max)
1200 V
600V
±250mV
8-20 V
2.2 mA
7.5 µsec
(@20kHz)
40ksample/sec
(@20kHz)
±470 mV
Description
IR21771/IR22771 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. The max
throughput is 40 ksample/sec suitable for up to 20 kHz
asymmetrical PWM modulation and max delay is <7.5µsec
(@20kHz). Also a fast over current signal is provided for IGBT
protection.
Package
Typical Connection
(Please refer to
Lead Assignments
for correct pin
configuration. This
diagram shows
electrical
connections only)
1
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IR22771S pdf, ピン配列
IR22771S/IR21771S(PbF)
Static Electrical Characteristics
VCC, VBS = 15V unless otherwise specified. Temp=27°C; Vin=Vin+ - Vin.
Pin: VCC, VSS, VB, VS
Symbol
Definition
IQBS
IQCC
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Quiescent VBS supply current
Quiescent VCC supply current
Offset supply leakage
current
IR22771
IR21771
Min Typ Max
1 2.2
6
50
50
Units
mA
mA
µA
µA
Test
Conditions
fsync = 10kHz,
20kHz
fsync = 10kHz,
20kHz
VB = VS =
1200V
VB = VS = 600V
Pin: Vin+, Vin-, Sync, G0, G1, OC
Symbol
Definition
Min Typ Max
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
2.2
0.2
-18
250
-250
0.8
-6
Ipu
|Vocth|
RSync
RonOC
G0, G1 pull-up Current
Over Current Activation Threshold
SYNC to VSS internal pull-down
Over Current On Resistance
-20
300
6
25
-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
VSS
Rsync
Schmitt trigger
Figure 2: Sync input circuit
3 www.irf.com


3Pages


IR22771S 電子部品, 半導体
Vmax
Vin
Vmin
SYNC
IR22771S/IR21771S(PbF)
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PO
SR MD
(PO full response time)
Figure 5: PO timing diagram
Vmax
Vin
Vmin
SYNC
PO
GP *VPOs1
20%
GP *VPOs0
GP *VPOs1
20%
20%
DVPOs= VPOs1-VPOs0
Supply=5V
Vth=2.75V
GP *VPOs0
20%
Figure 6: offset between two consecutive samples measured at PO
6 www.irf.com

6 Page



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部品番号部品説明メーカ
IR22771S

Phase Current Sensor IC

International Rectifier
International Rectifier


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