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TPS65510 Datasheet(PDF) 14 Page - Texas Instruments

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No. de Pieza. TPS65510
Descripción  LOW-POWER BATTERY BACKUP IC WITH INTEGRATED BOOST CONVERTER
Descarga  19 Pages
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Fabricante  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS65510 Datasheet(HTML) 14 Page - Texas Instruments

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Protection
TPS65510
SLLS917 – SEPTEMBER 2008 .......................................................................................................................................................................................... www.ti.com
The TPS65510 has over current protection (OCP), over voltage protection (OVP) Thermal shutdown (TSD) and
Under Voltage Lock Out (UVLO). See Table 1.
Table 1. Conditions of Protections
PIN
PROTECTION
CONDITION
Detect condition
Voltage of FB pin is greater than the threshold.
OVP
Change mode
Operation disable without latch off
Recovery condition
Voltage of FB pin is less than the threshold (auto recovery).
Current of SW pin is greater than the threshold with counting 64 cycles × 750 [kHz] and
SW
Detect condition
the output voltage of VO_BT is less than 85% compared with the target voltage.
OCP
Change mode
Operation mode changes from PWM mode to PFM mode.
Current of SW pin is less than the threshold and input edge signal from low level to high
Recovery condition
level at the PWMON pin.
Detect condition
Current of VOUT pin is greater than the threshold.
VOUT
OCP
Change mode
Operation disable without latch off
Recovery condition
Current of VOUT pin is less than the threshold (auto recovery).
Detect condition
Current of VRO pin is greater than the threshold.
VRO
OCP
Change mode
Operation disable without latch off
Recovery condition
Current of VRO pin is less than the threshold (auto recovery).
Detect condition
Temperature of chip is greater than the threshold.
Change mode
Operation of boost converter shuts down with latch off.
-
TSD
Temperature of chip is lower than the threshold. Connect the main battery after
Recovery condition
disconnecting the main battery from the system
Detect condition
Voltage of VBAT pin is less than the threshold.
VBAT
UVLO
Change mode
Operation of boost converter shutdown without latch off
Recovery condition
Connect the main battery after disconnecting the main battery from the system.
14
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Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): TPS65510


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