参数资料
型号: ADP3402
厂商: Analog Devices, Inc.
英文描述: Replaced by BQ29412 : Voltage Protection for 2-,3-or,4-Cell Lion Batteries (2nd Protection) 8-SM8 -20 to 85
中文描述: 手机电源管理系统
文件页数: 12/12页
文件大小: 277K
代理商: ADP3402
–12–
REV. 0
C
P
ADP3402
Printed Circuit Board Layout Considerations
Use the following general guidelines when designing printed
circuit boards:
1. Split the battery connection to the VBAT and SIMBAT pins
of the ADP3402. Use separate traces for each connection
and locate the input capacitors as close to the pins as possible.
2. SIM input and output capacitors should be returned to the
SIMGND and kept as close as possible to the ADP3402 to
minimize noise. Traces to the SIM charge pump capacitor
should be kept as short as possible to minimize noise.
3. VCCA and VTCXO capacitors should be returned to
AGND.
4. VCC and VRTC capacitors should be returned to DGND.
5. Split the ground connections. Use separate traces or planes for
the analog, digital, and power grounds, and tie them together
at a single point, preferably close to the battery return.
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
28-Lead Thin Shrink Small Outline (TSSOP)
(RU-28A)
0.244 (6.20)
0.236 (6.00)
28
15
14
1
0.386 (9.80)
0.378 (9.60)
0.325 (8.25)
0.313 (7.95)
PIN 1
SEATING
PLANE
0.006 (0.15)
0.002 (0.05)
0.0118 (0.30)
0.0075 (0.19)
0.0256
(0.65)
BSC
0.0433 (1.10)
MAX
0.0374 (0.95)
0.0335 (0.85)
0.0078 (0.200)
0.0035 (0.090)
0.030 (0.75)
0.020 (0.50)
8
8
0
8
相关PDF资料
PDF描述
ADP3402ARU Replaced by BQ29412 : Voltage Protection for 2-,3-or,4-Cell Lion Batteries (2nd Protection) 8-SM8
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