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IR21531DPBFのメーカーはInternational Rectifierです、この部品の機能は「SELF-OSCILLATING HALF-BRIDGE DRIVER」です。 |
部品番号 | IR21531DPBF |
| |
部品説明 | SELF-OSCILLATING HALF-BRIDGE DRIVER | ||
メーカ | International Rectifier | ||
ロゴ | |||
このページの下部にプレビューとIR21531DPBFダウンロード(pdfファイル)リンクがあります。 Total 9 pages
Preliminary Data Sheet No. PD60131-L
IR21531D(S) & (PbF)
SELF-OSCILLATING HALF-BRIDGE DRIVER
Features
• Integrated 600V half-bridge gate driver
• 15.6V zener clamp on Vcc
• True micropower start up
• Tighter initial deadtime control
• Low temperature coefficient deadtime
• Shutdown feature (1/6th Vcc) on CT pin
• Increased undervoltage lockout Hysteresis (1V)
• Lower power level-shifting circuit
• Constant LO, HO pulse widths at startup
• Lower di/dt gate driver for better noise immunity
• Low side output in phase with RT
• Internal 50nsec (typ.) bootstrap diode (IR21531D)
• Excellent latch immunity on all inputs and outputs
• ESD protection on all leads
• Also available LEAD_FREE
Product Summary
VOFFSET
Duty Cycle
Tr/Tp
Vclamp
Deadtime (typ.)
Packages
600V max.
50%
80/40ns
15.6V
0.6 µs
Description
The IR21531(D)(S) are an improved version of the
8 Lead PDIP
8 Lead SOIC
popular IR2155 and IR2151 gate driver ICs, and in-
corporates a high voltage half-bridge gate driver with a front end oscillator similar to the industry standard
CMOS 555 timer. The IR21531 provides more functionality and is easier to use than previous ICs. A shutdown
feature has been designed into the CT pin, so that both gate driver outputs can be disabled using a low voltage
control signal. In addition, the gate driver output pulse widths are the same once the rising undervoltage
lockout threshold on VCC has been reached, resulting in a more stable profile of frequency vs time at
startup. Noise immunity has been improved significantly, both by lowering the peak di/dt of the gate drivers,
and by increasing the undervoltage lockout hysteresis to 1V. Finally, special attention has been payed to
maximizing the latch immunity of the device, and providing comprehensive ESD protection on all pins.
IR21531(S)
VCC VB
Typical Connections
600V
MAX
IR21531D
VCC VB
600V
MAX
HO
RT VS
HO
RT VS
Shutdown
CT LO
COM
Shutdown
CT LO
COM
www.irf.com
1
1 Page Recommended Component Values
Symbol
RT
CT
Component
Timing resistor value
CT pin capacitor value
IR21531D(S) & (PbF)
Min.
10
330
Max.
—
—
Units
kΩ
pF
1000000
100000
10000
1000
100
10
10
IIRR221155331 RRTT vvss FFrreeqquueennccyy
330pf
470pF
1nF
2.2nF
4.7nF
10nF
CT Values
100
1000
10000
RT (ohms)
100000
1000000
www.irf.com
3
3Pages IR21531D(S) & (PbF)
Functional Block Diagram for IR21531(S)
RT
R
+
-
R
+
-
R/2
+
CT
-
R/2
RQ
SQ
LOGIC
UV
DETECT
DEAD
TIME
PULSE
GEN
DEAD
TIME
HV
LEVEL
SHIFT
PULSE
FILTER
Q
R
S
DELAY
15.6V
VB
HO
VS
VCC
LO
COM
Functional Block Diagram for IR21531D
RT
R
+
-
R
+
-
R/2
+
CT
-
R/2
RQ
SQ
LOGIC
UV
DETECT
NOTE: The D1 is a separate die.
DEAD
TIME
PULSE
GEN
DEAD
TIME
HV
LEVEL
SHIFT
PULSE
FILTER
Q
R
S
DELAY
15.6V
VB
HO
VS
D1
VCC
LO
COM
6 www.irf.com
6 Page | |||
ページ | 合計 : 9 ページ | ||
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PDF ダウンロード | [ IR21531DPBF データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
IR21531DPBF | SELF-OSCILLATING HALF-BRIDGE DRIVER | International Rectifier |