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TPIC74101-Q1 Folha de dados(PDF) 10 Page - Texas Instruments

Nome de Peças TPIC74101-Q1
Descrição Electrónicos  TPIC74101-Q1 Buck and Boost Switch-Mode Regulator
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Fabricante Electrônico  TI [Texas Instruments]
Página de início  http://www.ti.com
Logo TI - Texas Instruments

TPIC74101-Q1 Folha de dados(HTML) 10 Page - Texas Instruments

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B0130-01
Switch-Mode
ControllerWith
Dead Time
Charge
Pump
Vref
Bandgap
Ref
Vreg
Osc
+
-
+
-
PORWith
Delay Timer
V
driver
ENABLE
GND
L1
5VSupply
5Vg_Supply
-
+
L2
V
OUT
Q1
Q2
Q3
Q4
RESET
Temp
Monitor
Shutdown
Regulator
R
mod
Clock
Modulator
Cboot1
Cboot2
5Vg_ENABLE
A
OUT
REST
PGND
SCR0
SCR1
SlewRate
Control
5
Vg
Low-Power
Mode
Control
CLP
Inrush
CurrentLimit
4.7nF
22 H–
100 H
m
m
4.7nF
5kW
12kW
R1
R2
L
C
470nF
2.2nF–150nF
Charge
Pump
Bandgap
Ref
V
logic
A
IN
Vbattery
22µF–470µF
1µF–100µF
ExternalSchottky
DiodeRequired,
Max.0.4V
@1 A
@125ºC
Low-PowerMode
DigitalSignal
5kW
TPIC74101-Q1
SLIS140A – OCTOBER 2011 – REVISED DECEMBER 2014
www.ti.com
7 Detailed Description
7.1 Overview
The TPIC74101-Q1 is a buck/boost switch-mode regulator that operates in a power-supply concept to ensure a
stable output voltage with input voltage excursions and specified load range.
The device provides an alarm indicator and reset output to interface with systems that require supervisory
function.
The switching regulator offers a clock modulator and a current-mode slew-rate control for the internal switching
transistor (Q1) to minimize EMI.
An internal low-rDS(on) switch has a current-limit feature to prevent inadvertent reset when turning on the 5Vg
output.
7.2 Functional Block Diagram
NOTE: All component values are typical.
10
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Product Folder Links: TPIC74101-Q1


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