Texas Instruments TPS53219EVM-690 Wide-Input Voltage Eco-mode™, Single, Synchronous, Step-Down Controller TPS53219EVM-69 TPS53219EVM-690 데이터 시트
제품 코드
TPS53219EVM-690
www.ti.com
Test Procedure
Table 2. Switching Frequency Selection
Jumper Set to
Resistor (RF) Connections (
Ω
)
Switching Frequency (kHz)
Top(1-2 pin shorted)
0
250
Second (3-4 pin shorted)
187k
300
Third (5-6 pin shorted)
619k
400
Fourth (7-8 pin shorted)
Open
500
Fifth (9-10 pin shorted)
866k
650
Sixth (11-12 pin shorted)
309k
750
Seventh (13-14 pin shorted)
124k
850
Bottom (15-16 pin shorted)
0
1000
6.2
Soft-Start Selection
The soft-start time can be set by J2.
Default setting: 0.7ms
Table 3. Soft-Start Selection
Jumper Set to
R
MODE
Connections (
Ω
)
Soft-Start Time (ms)
Top (1-2 pin shorted)
39.2k
0.7
Second (3-4 pin shorted)
100k
1.4
Third (5-6 pin shorted)
200k
2.8
Bottom (7-8 pin shorted)
475k
5.6
6.3
Mode Selection
The MODE can be set by J6.
Default setting: Auto Skip
Table 4. MODE Selection
Jumper Set to
MODE Selection
Top (1-2 pin shorted)
Auto Skip
Bottom (3-4 pin shorted)
Forced CCM
6.4
Enable Selection
The controller can be enabled and disabled by J3.
Default setting: Jumper shorts on J3 to disable the controller
Table 5. Enable Selection
Jumper Set to
Enable Selection
Jumper shorts on J3
Disable the controller
No Jumper shorts on J3
Enable the controller
7
Test Procedure
7.1
Line/Load Regulation and Efficiency Measurement Procedure
1. Set up EVM as described in
and
2. Ensure that Load is set to constant resistance mode and to sink 0 Adc.
3. Ensure that all jumper configuration settings per
3. Ensure that all jumper configuration settings per
.
4. Ensure that the jumper provided in the EVM shorts on J3 before Vin is applied.
7
SLVU431 – January 2011
Using the TPS53219EVM-690 Wide-Input Voltage, Eco-mode™, Single,
Synchronous, Step-Down Controller
© 2011, Texas Instruments Incorporated