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DRV8302DCAR Datasheet(数据表) 15 Page - Texas Instruments

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部件型号  DRV8302DCAR
说明  Three Phase Pre-Driver with Dual Current Shunt Amplifiers and Buck Regulator Hardware Controlled
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
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DRV8302DCAR Datasheet(HTML) 15 Page - Texas Instruments

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DRV8302
www.ti.com
SLES267
– AUGUST 2011
Table 1. Fault and Warning Reporting and Handling
REPORTING ON
REPORTING ON
EVENT
ACTION
LATCH
FAULT PIN
OCTW PIN
External FETs HiZ;
PVDD
Weak pull down of all gate
N
Y
N
undervoltage
driver output
External FETs HiZ;
DVDD
Weak pull down of all gate
N
Y
N
undervoltage
driver output; When recovering,
reset all status registers
External FETs HiZ;
GVDD
Weak pull down of all gate
N
Y
N
undervoltage
driver output
External FETs HiZ;
Weak pull down of all gate driver output
GVDD
Shut down the charge pump
Y
Y
N
overvoltage
Won
’t recover and reset through
SPI reset command or
quick EN_GATE toggling
OTW
None
N
N
Y
Gate driver latched shut down.
Weak pull down of all gate driver output
OTSD_GATE
Y
Y
Y
to force external FETs HiZ
Shut down the charge pump
OTSD_BUCK
OTSD of Buck
Y
N
N
Buck output
UVLO_BUCK: auto-restart
N
Y, in PWRGD pin
N
undervoltage
Buck current limiting
Buck overload
(HiZ high side until current reaches
N
N
N
zero and then auto-recovering)
External FET
External FETs current Limiting
N
N
Y
overload
– current limit
(only OC detected FET)
mode
Weak pull down of gate driver
External FET
output and PWM logic
“0” of
Y
Y
Y
overload
– Latch mode
LS and HS in the same phase.
External FETs HiZ
External FET
Reporting only
N
N
Y
overload
– reporting only
mode
Copyright
© 2011, Texas Instruments Incorporated
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