IRS2336SPBF International Rectifier, IRS2336SPBF Datasheet - Page 24

• Manufacturer Part Number: IRS2336SPBF
• Description: IC DRIVER BRIDGE 3-PHASE 28-SOIC
• Manufacturer: International Rectifier

Specifications of IRS2336SPBF

• Configuration: 3 Phase Bridge
• Input Type: Differential
• Delay Time: 530ns
• Current - Peak: 200mA
• Number Of Configurations: 1
• Number Of Outputs: 3
• High Side Voltage - Max (bootstrap): 600V
• Voltage - Supply: 10 V ~ 20 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Fault Reporting and Programmable Fault Clear Timer
The IRS2336xD family provides an integrated fault reporting output and an adjustable fault clear timer. There are two
situations that would cause the HVIC to report a fault via the FAULT pin. The first is an undervoltage condition of V
and the second is if the ITRIP pin recognizes a fault. Once the fault condition occurs, the FAULT pin is internally
pulled to V
been removed and the fault clear timer expires; once the fault clear timer expires, the voltage on the FAULT pin will
return to V
The length of the fault clear time period (t
where the time constant is set by R
(UVLO or ITRIP), RCIN and FAULT are pulled to V
begins. Figure 13 shows that R
the RCIN and V
The design guidelines for this network are shown in Table 3.
The length of the fault clear time period can be determined by using the formula below.
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Figure 12: RCIN and FAULT pin waveforms
CC
SS
.
and the fault clear timer is activated. The fault output stays in the low state until the fault condition has
SS
pins.
RCIN
RCIN
is connected between the V
t
FLTCLR
FLTCLR
and C
Table 3: Design guidelines
C
R
= -(R
RCIN
RCIN
) is determined by exponential charging characteristics of the capacitor
RCIN
v
. In Figure 12 where we see that a fault condition has occurred
C
RCIN
(t) = V
SS
C
, and once the fault has been removed, the fault clear timer
RCIN
24
f
(1-e
)ln(1-V
0.5 M to 2 M
-t/RC
Figure 13: Programming the fault clear timer
>> R
CC
Ceramic
)
RCIN,TH
1 nF
and the RCIN pin, while C
ON,RCIN
/V
CC
)
IRS2336x(D) Family
© 2009 International Rectifier
RCIN
is placed between
CC