Texas Instruments bq24153A, Руководство пользователя

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Introduction
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1 Introduction
1.1 EVM Features
• Evaluation module (EVM) for bq24153A/56A/57/58/59
• High-efficiency fully integrated NMOS-NMOS synchronous buck charger with 3-MHz frequency
• Integrated power FETs for up to 1.55-A charge rate
• Programmable battery voltage, charge current, and input current via I
2
C™ interface
• Input operating range 4 V – 6 V
• Boost-mode operation for USB OTG
• LED indication for status signals
• Test points for key signals available for testing purposes. Easy probe hook-up
• Jumpers available. Easy-to-change connections.
1.2 General Description
The bq24153A/56A/57/58/59 evaluation module is a complete charger module for evaluating compact,
flexible, high-efficiency, USB-friendly, switch-mode charge management solution for single-cell Li-ion and
Li-polymer batteries used in a wide range of portable applications.
The bq24153A/56A/57/58/59 integrates a synchronous PWM controller, power MOSFETs, input current
sensing, high-accuracy current and voltage regulation, and charge termination, into a small WCSP
package. The charge parameters can be programmed through an I
2
C interface.
For details, see the bq24153A/56A/58/59 data sheet ( SLUSAB0 ) and the bq24157 datasheet ( SLUSAX5 ).
1.3 I/O Description
Jack Description
J1–DC+ AC adapter or USB, positive output
J1–DC– AC adapter or USB, negative output
J2–BAT– Battery negative terminal; connect to DC-
J2-AUXPWR/CD Connect to AUXPWR pin or CD pin
J2-BAT+ Charger positive output; connect to CSOUT pin
J3–SCL I
2
C clock; connect to SCL pin
J3–SDA I
2
C data; connect to SDA pin
J3–DC– AC adapter or USB, negative output
J4–STAT Status output; can be connected to STAT pin by JMP1 set to EXT (2-3)
J4–OTG/SLRST Connect to OTG/SLRST pin
J4–DC– AC adapter or USB, negative output
1.4 Control and Key Parameters Setting
Jack Description Factory Setting
LED 1-2: Connect STAT pin to LED on EVM
JMP1 Jumper on LED (1-2)
EXT 2-3: Connect STAT pin to J4-1
HI 1-2: OTG or SLRST high (input or battery voltage)
JMP2
LO 2-3: OTG or SLRST low (ground)
See Table 1
JMP3 J2-BAT+ connect to J2-AUXPWR/CD
JMP4 AUXPWR/CD pin connect to high or low or float
JMP5 OTG/SLRST pin 10-k Ω resistor to ground or float Jumper ON
2 bq24153A/56A/57/58/59 Fully Integrated, Switch-Mode, One-Cell, Li-Ion Charger SLUU453C – November 2010 – Revised May 2013
With Full USB Compliance and USB-OTG Support EVM
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