Texas Instruments Evaluation Module for Single-Chip Charger and DC/DC Converter IC for Portable Applications BQ25017EVM BQ25017EVM 데이터 시트
제품 코드
BQ25017EVM
www.ti.com
G002
Power
Supply #1
bqHYBRID
EVM
BAT+
(J4)
BAT–
R
36
0.25 W
0.25 W
L
W
SYS
(J3)
AC
(J1)
(J1)
EN
B0235-04
Oscilloscope
PROCEDURE
Figure 2-5. Waveform at Pin SW
11. Converter Enable and Disable. Disconnect the current meter, the 5-
Ω
, 50-W resistor, and power
supply #2 from J4. Short J6 pin 1 (EN) and pin 2 (DC–). Verify the voltage of SYS (J3) is below 100
mV.
mV.
12. No Battery Load With DC-DC Converter Disabled, Switch From Charge to Charge Done to
Recharge, Back and Forth. Make sure the setup has been changed to setup D, as shown in
. Verify that the LEDs, D3 and D2, alternate being lit. Measure the voltage at BAT+ with the
oscilloscope. Verify the waveform is like that in
. It is actually
Figure 2-6. Test Setup D
10
Basic Functions Evaluation
SLUU214A – December 2004 – Revised June 2007