參數(shù)資料
型號(hào)： TPS65200YFFT
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, BGA36
封裝： 2.80 X 2.60 MM, 0.40 MM PITCH, GREEN, DSBGA-36
文件頁(yè)數(shù)： 28/59頁(yè)
文件大?。?/td> 2424K
代理商： TPS65200YFFT
Disable boost
-----------------
CH_EN[1:0] = 00
BST32SI =1
Reset and start
32min timer
32s timer
expired?
CH_EN [1:0]
= 10?
YES
32m timer
expired?
NO
CH_EN[1: 0] != 00
Disable charger
-----------------
CH_EN[1:0] = 00
CH32MI = 1
YES
CHSTAT[ 2: 0] = 010?
(Charge done )
NO
Any I 2C
action?
NO
YES
NO
YES
DISABLED
Any state
CH_EN[1:0] = 00
SLVSA48 – APRIL 2010
www.ti.com
Figure 54. Timer Flow Chart for TPS65200 Charger
Input Voltage Protection in Charge Mode
Input Over-Voltage Protection (VBUSOVPI)
The TPS65200 provides a built-in input over-voltage protection to protect the device and other components
against damage if the input voltage (voltage from VBUS to PGND) gets too high. When an input over-voltage
condition is detected, the TPS65200 turns off the PWM converter, sets the VBUSOVPI bit in the INT1 register
and issues an interrupt. Once VVBUS drops below the input over-voltage exit threshold, the fault is cleared and
charge process resumes.
Reverse Current Protection (CHRVPI)
The TPS65200 charger enters HiZ state if the voltage on VBUS pin falls below VCSOUT + VREV, and VBUS is still
higher than the poor source detection threshold, VIN(MIN). The CHRVPI bit is set in the INT2 register and an
interrupt is issued. This feature prevents draining the battery during the absence of VBUS. In HiZ mode, both the
reverse blocking switch Q1 and PWM are turned off.
34
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s): TPS65200
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