Texas Instruments TPS43340 Evaluation Module TPS43340EVM TPS43340EVM Datenbogen
Produktcode
TPS43340EVM
Setup
The following listing describes the functions of the various test points.
Test Points
●
EN1
Enable for switcher 1
●
EN2
Enable for switcher 2
●
EN3
Enable for switcher 3
●
EN4
Enable for the linear regulator
●
EXTSUP
External power source for the MOSFETs
●
GND (x9)
Ground
●
PH1
Switcher 1 phase pin
●
PH2
Switcher 2 phase pin
●
PH3
Switcher 3 phase pin
●
RST1
Reset output for switcher 1
●
RST2
Reset output for switcher 2
●
RST3
Reset output for switcher 3
●
RST4
Reset output for the linear regulator
●
VBAT
Power Input
●
VIN
Power Input after the reverse battery protection diode
●
VINLR1
Linear regulator input
●
VOUT1
Switcher 1 output
●
VOUT2
Switcher 2 output
●
VOUT3
Switcher 3 output
●
VOUT4
Linear regulator output
●
VSUP
Power input for switcher 3
2.2
Setup
The input voltage range for the converter is 4 V to 40 V. The minimum input voltage is 6.5 V at start-up.
The input voltage range is 4 V to 10 V for switcher 3.
The input voltage range is 4 V to 10 V for switcher 3.
2.3
Operation
For the correct operation of the TPS4334xEVM, Delay, EN1, EN2, EN3, EN4, EXTSUP, JP1, JP5, JP6,
PGATE, and VIN2, must be properly configured. The recommended setting, using the switch and shorting
blocks, follow.
PGATE, and VIN2, must be properly configured. The recommended setting, using the switch and shorting
blocks, follow.
Delay
1 ms
EN1
Disabled
EN2
Disabled
EN3
Disabled
EN4
Disabled
EXTSUP
VOUT1
JP1
Auto
JP5
External supply
ROSC
400 kHz
SLEW
Fast
SYNC
Forced continuous conduction mode
VIN2
VIN
VINLR1
VIN
6
TPS4334xEVM Evaluation Module
SLVU463
–
July 2011
Copyright
©
2011, Texas Instruments Incorporated