參數(shù)資料
型號(hào)： TPS5410MDREP
廠(chǎng)商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 穩(wěn)壓器
英文描述： 4.6 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8
封裝： GREEN, PLASTIC, SOIC-8
文件頁(yè)數(shù)： 19/25頁(yè)
文件大?。?/td> 759K
代理商： TPS5410MDREP
www.ti.com ......................................................................................................................................................................................... SLVS910 – SEPTEMBER 2009
DISSIPATION RATINGS
(1) (2)
THERMAL IMPEDANCE
PACKAGE
JUNCTION-TO-AMBIENT
8 Pin D (3)
75°C/W
(1)
Maximum power dissipation may be limited by overcurrent protection.
(2)
Power rating at a specific ambient temperature TA should be determined with a junction temperature of 125°C. This is the point where
distortion starts to substantially increase. Thermal management of the final PCB should strive to keep the junction temperature at or
below 125°C for best performance and long-term reliability. See Thermal Calculations in applications section of this data sheet for more
information.
(3)
Test board conditions:
(a) 3 in x 3 in, 2 layers, thickness: 0.062 inch.
(b) 2 oz. copper traces located on the top and bottom of the PCB.
RECOMMENDED OPERATING CONDITIONS
MIN
NOM
MAX
UNIT
VI
Input voltage range, VIN
5.5
36
V
TJ
Operating junction temperature
–55
125
°C
ELECTRICAL CHARACTERISTICS
TJ = –55°C to 125°C, VIN = 5.5 V to 36 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY VOLTAGE (VIN PIN)
VSENSE = 2 V, Not switching, PH pin
3
4.4
mA
open
IQ
Quiescent current
Shutdown, ENA = 0 V
18
50
μA
UNDERVOLTAGE LOCK OUT (UVLO)
Start threshold voltage, UVLO
5.3
V
Hysteresis voltage, UVLO
330
mV
VOLTAGE REFERENCE
TJ = 25°C
1.202
1.221
1.239
Voltage reference accuracy
V
IO = 0 A – 1 A
1.192
1.221
1.245
OSCILLATOR
TJ = 25°C
400
500
600
Internally set free-running frequency
kHz
TJ = Full range
380
600
Minimum controllable on time
150
210
ns
Maximum duty cycle
87%
89%
ENABLE (ENA PIN)
Start threshold voltage, ENA
1.3
V
Stop threshold voltage, ENA
0.5
V
Hysteresis voltage, ENA
450
mV
Internal slow-start time (0 ~ 100%)
5.35
8
10
ms
CURRENT LIMIT
TJ = 25°C
1.2
1.5
1.8
Current limit
A
TJ = Full range
0.45
4.6
Current limit hiccup time
13
16
22.5
ms
THERMAL SHUTDOWN
Thermal shutdown trip point
135
162
°C
Thermal shutdown hysteresis
14
°C
OUTPUT MOSFET
VIN = 5.5 V
150
rDS(on)
High side power MOSFET switch
m
VIN = 10 V - 36 V
110
Copyright 2009, Texas Instruments Incorporated
3
Product Folder Link(s): TPS5410-EP
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