Ir2112
Páginas: 5 (1220 palabras)
Publicado: 15 de noviembre de 2012
IR2112(-1-2)(S)PbF
HIGH AND LOW SIDE DRIVER
Features
• Floating channel designed for bootstrap operation
• Fully operational to +600V
• Tolerant to negative transient voltage
dV/dt immune
• Gate drive supply range from 10 to 20V
• Undervoltage lockout for both channels
• 3.3V logic compatible
•
•
•
•
Separate logic supply range from 3.3V to 20VLogic and power ground ±5V offset
CMOS Schmitt-triggered inputs with pull-down
Cycle by cycle edge-triggered shutdown logic
Matched propagation delay for both channels
Outputs in phase with inputs
Product Summary
VOFFSET
600V max.
IO+/-
200 mA / 420 mA
VOUT
10 - 20V
ton/off (typ.)
125 & 105 ns
Delay Matching
30 ns
Packages
Description
The IR2112(S) is ahigh voltage, high speed power
MOSFET and IGBT driver with independent high and
16-Lead SOIC (wide body)
low side referenced output channels. Proprietary HVIC
14-Lead PDIP
and latch immune CMOS technologies enable ruggedized monolithic construction. Logic inputs are compatible with standard CMOS or LSTTL outputs, down to 3.3V logic.
The output drivers feature a high pulse current buffer stagedesigned for minimum driver cross-conduction.
Propagation delays are matched to simplify use in high frequency applications. The floating channel can be
used to drive an N-channel power MOSFET or IGBT in the high side configuration which operates up to 600
volts.
Typical Connection
up to 600V
HO
VDD
VDD
VB
HIN
HIN
VS
SD
SD
LIN
LIN
VCC
VSS
VSS
COMVCC
TO
LOAD
LO
(Refer to Lead Assignments for correct pin configuration). This/These diagram(s) show electrical connections only.
Please refer to our Application Notes and DesignTips for proper circuit board layout.
www.irf.com
1
IR2112(-1-2)(S)PbF
Absolute Maximum Ratings
Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur.All voltage parameters are absolute voltages referenced to COM. The Thermal Resistance and Power Dissipation ratings are measured
under board mounted and still air conditions. Additional information is shown in Figures 28 through 35.
Symbol
Definition
VB
VS
Min.
Max.
-0.3
High Side Floating Supply Voltage
625
Units
High Side Floating Supply Offset Voltage
V B - 25VB + 0.3
VHO
High Side Floating Output Voltage
VS - 0.3
VB + 0.3
VCC
Low Side Fixed Supply Voltage
-0.3
25
VLO
Low Side Output Voltage
-0.3
VCC + 0.3
VDD
Logic Supply Voltage
-0.3
VSS + 25
VSS
Logic Supply Offset Voltage
VCC - 25
VCC + 0.3
VIN
Logic Input Voltage (HIN, LIN & SD)
dVs/dt
PD
VSS - 0.3
VDD + 0.3Allowable Offset Supply Voltage Transient (Figure 2)
—
50
Package Power Dissipation @ TA ≤ +25°C
—
1.25
(14 Lead DIP)
—
75
—
V/ns
1.6
—
(16 Lead SOIC)
Thermal Resistance, Junction to Ambient
(14 Lead DIP)
(16 Lead SOIC)
RTHJA
V
100
TJ
Junction Temperature
—
Storage Temperature
-55
150
TL
Lead Temperature (Soldering, 10seconds)
—
°C/W
150
TS
W
300
°C
Recommended Operating Conditions
The Input/Output logic timing diagram is shown in Figure 1. For proper operation the device should be used within the
recommended conditions. The VS and VSS offset ratings are tested with all supplies biased at 15V differential. Typical
ratings at other bias conditions are shown in Figures 36 and 37.
SymbolMin.
Max.
VB
High Side Floating Supply Absolute Voltage
Definition
VS + 10
VS + 20
VS
High Side Floating Supply Offset Voltage
Note 1
600
VB
VHO
High Side Floating Output Voltage
VS
VCC
Low Side Fixed Supply Voltage
10
20
VLO
Low Side Output Voltage
0
VCC
VDD
Logic Supply Voltage
VSS
Logic Supply Offset Voltage
VIN...
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