IRS26310DJPBF International Rectifier, IRS26310DJPBF Datasheet - Page 28

• Manufacturer Part Number: IRS26310DJPBF
• Description: IC DRIVER BRIDGE 3-PHASE 44-PLCC
• Manufacturer: International Rectifier

Specifications of IRS26310DJPBF

• Configuration: 3 Phase Bridge
• Input Type: Non-Inverting
• Delay Time: 530ns
• Current - Peak: 200mA
• Number Of Configurations: 1
• Number Of Outputs: 3
• High Side Voltage - Max (bootstrap): 600V
• Voltage - Supply: 12 V ~ 20 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 44-PLCC (32 Leads)
• Peak Output Current: 200mA
• Input Delay: 530ns
• Output Delay: 530ns
• Supply Voltage Range: 12V To 20V
• Driver Case Style: LCC
• No. Of Pins: 44
• Operating Temperature Range: -40°C To +125°C
• Rohs Compliant: Yes
• Device Type: High Side / Low Side
• Family Hvic: General Purpose HVICs
• Channels: 6
• Topology: Three Phase
• Application: General Purpose / Motor Control / PDP
• Voffset: 600
• Io+ (ma): 200
• Io- (ma): 350
• Shutdown / Reset: Yes
• Separate Power And Logic Ground: Yes
• Integrated Bootstrap Diode: Yes
• Over Current Protection: Yes
• Uvlo: Vcc / Vbs
• Vbsuv+ / Vccuv+ Min (v): 10.4
• Vbsuv+ / Vccuv+ Typ (v): 11.1
• Vbsuv+ / Vccuv+ Max (v): 11.6
• Vbsuv- / Vccuv- Min (v): 10.2
• Vbsuv- / Vccuv- Typ (v): 10.9
• Dt / Sdt Min (ns): 190
• Dt / Sdt Typ (ns): 290
• Dt / Sdt Max (ns): 420
• T On Min (ns): 400
• T On Typ (ns): 530
• T On Max (ns): 750
• T Off Min (ns): 400
• T Off Typ (ns): 530
• T Off Max (ns): 750
• Fault Reporting: Yes
• Package: 44 Lead
• Part Status: Active & Preferred
• Special Features: DC Bus Sensing with Over Voltage Protection
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

IRS26310DJPbF
Figure 21: Difference between the input pulse and the output pulse
Integrated Bootstrap Functionality
The new IRS26310D family features integrated high-voltage bootstrap MOSFETs that eliminate the need of the
external bootstrap diodes and resistors in many applications.
There is one bootstrap MOSFET for each high-side output channel and it is connected between the V
supply and
CC
its respective floating supply (i.e., V
, V
, V
); see Figure 22 for an illustration of this internal connection.
B1
B2
B3
The integrated bootstrap MOSFET is turned on only during the time when LO is ‘high’, and it has a limited source
current due to R
. The V
voltage will be charged each cycle depending on the on-time of LO and the value of the
BS
BS
C
capacitor, the drain-source (collector-emitter) drop of the external IGBT (or MOSFET), and the low-side free-
BS
wheeling diode drop.
The bootstrap MOSFET of each channel follows the state of the respective low-side output stage (i.e., the bootstrap
MOSFET is ON when LO is high, it is OFF when LO is low), unless the V
voltage is higher than approximately
B
110% of V
. In that case, the bootstrap MOSFET is designed to remain off until V
returns below that threshold; this
CC
B
concept is illustrated in Figure 23.
Figure 22: Internal bootstrap MOSFET connection
Figure 23: Bootstrap MOSFET state diagram
A bootstrap MOSFET is suitable for most of the PWM modulation schemes and can be used either in parallel with
the external bootstrap network (i.e., diode and resistor) or as a replacement of it. The use of the integrated bootstrap
as a replacement of the external bootstrap network may have some limitations. An example of this limitation may
arise when this functionality is used in non-complementary PWM schemes (typically 6-step modulations) and at very
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