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TPS613784-Q1

更新时间: 2024-10-29 02:48:11
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德州仪器 - TI /
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描述
TPS61378-Q1 25-μA Quiescent Current Synchronous Boost Converter with Load Disconnect

TPS613784-Q1 数据手册

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TPS61378-Q1  
SLVSET0A – MAY 2020 – REVISED OCTOBER 2020  
TPS61378-Q1 25-µA Quiescent Current Synchronous Boost Converter with Load  
Disconnect  
1 Features  
3 Description  
AEC-Q100 qualified for automotive applications  
– Device temperature grade 1: –40°C to 125°C  
ambient operating temperature range  
Function Safety-Capable  
Documentation available to aid functional safety  
system design  
Flexible input and output operation range  
– Input voltage range: 2.3 V to 14 V  
– Programmable output voltage range: 4.0 V to  
18.5 V  
5 V, 5.25 V, 5.5 V fixed output options  
– Programmable peak current limit: 1 A to 4.8 A  
Avoid AM band interference and crosstalk  
– Dynamically programmable switching  
frequency: 200 kHz to 2.2 MHz  
– Spread spectrum frequency modulation  
– Optional clock synchronization  
Minimize solution size for space constraint  
applications  
– Integrated LS/HS/ISO FET: RDS(ON) 50 mΩ/50  
mΩ/100 mΩ  
– Support up to 2.2 MHz with small L-C  
Minimized light load and idle state current  
consumption  
– 25-µA Quiescent current into VIN pin  
– 0.5-µA Shutdown current into VIN pin  
– Selectable auto PFM and forced PWM mode  
– True load disconnect during shutdown or fault  
conditions  
The TPS61378-Q1 is a fully-integrated synchronous  
boost converter with load disconnect function  
integrated. The input voltage covers from 2.3 V to 14  
V, while the maximal output votlage up to 18.5 V. The  
switching current limit is programmable from 1 A to  
4.8 A. It consumes 25 uA quiescent current from Vin.  
The TPS61378-Q1 employs the peak current mode  
control with the switching frequency programmable  
from 200 kHz to 2.2 MHz. The device works in fixed  
frequency PWM operation in medium to heavy load.  
There are two optional modes in light load by  
configuring the MODE pin: Auto PFM mode and  
Forced PWM to balance the efficiency and noise  
immunity in light load. The switching frequency can be  
synchronized to an external clock. The TPS61378-Q1  
uses the spread spectrum of the internal clock for  
more EMI friendly at FPWM mode. In addition, there  
is an internal soft-start time to limit the inrush current.  
The TPS61378-Q1 has various fixed output voltage  
versions to save the external feedback resistor. It  
supports the external loop compensation so that the  
stability and transient response could be optimized at  
wider Vout/Vin range. It also integrates robust  
protection features including the output short  
protection, output over voltage protection and thermal  
shutdown protection. The TPS61378-Q1 is available  
in a 3-mm x 3-mm 16-pin QFN package with wettable  
flank.  
Device Information  
PART NUMBER  
PACKAGE(1)  
BODY SIZE (NOM)  
Integrated protection features  
TPS61378QRTE  
VQFN-16  
3.0-mm x 3.0-mm  
– Support VIN close to VOUT operation  
– Input undervoltage lockout and output  
overvoltage protection  
(1) For all available packages, see the orderable addendum at  
the end of the data sheet.  
VIN  
L1  
– Hiccup output short circuit protection  
– Power good indicator  
– Thermal shutdown protection at 165°C  
Higher than 90% efficiency under 0.8-A load from  
3.3-V to 9-V conversion  
SW  
PG  
C2  
R1  
VCC  
BST  
VIN  
C6  
OUT  
VO  
C1  
C3  
TPS61378-Q1  
EN  
VOUT  
FREQ  
R3  
R6  
R4  
2 Applications  
COMP  
FB  
C4  
R2  
C5  
ILIM  
Advanced driver-assistance system (ADAS)  
Automotive infotainment and cluster  
Body electronics and lighting  
MODE/SYNC  
GND  
R5  
Emergency call (eCall)  
Typical Application  
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION  
DATA.  
 
 
 

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