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參數(shù)資料
| 型號： | TPS65251RHAR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, PQCC40 |
| 封裝： | 6 X 6 MM, GREEN, PLASTIC, VQFN-40 |
| 文件頁數(shù)： | 29/31頁 |
| 文件大?。?/td> | 1827K |
| 代理商： | TPS65251RHAR |
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www.ti.com
SLVSAA4B – JUNE 2010 – REVISED JANUARY 2011
ELECTRICAL CHARACTERISTICS (continued)
TJ = -40°C to 125°C, VIN = 12 V, fSW = 1 MHz (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Line regulation - DC
VINB = 4.5 V to 18 V,
VLINEREG
0.5
% VOUT
VOUT/VINB
IOUT = 1000 mA
Load regulation - DC
IOUT = 10 % - 90%
VLOADREG
0.5
% VOUT/A
VOUT/IOUT
IOUT,MAX
ILIMIT1
Peak inductor current limit range
1
4
A
ILIMIT2
Peak inductor current limit range
1
3
A
ILIMIT3
Peak inductor current limit range
1
3
A
MOSFET (BUCK 1)
Turn-On resistance high side FET on
H.S. Switch
VIN = 12 V, TJ = 25°C
95
m
CH1
Turn-On resistance low side FET on
L.S. Switch
VIN = 12 V, TJ = 25°C
50
m
CH1
MOSFET (BUCK 2)
Turn-On resistance high side FET on
H.S. Switch
VIN = 12 V, TJ = 25°C
120
m
CH2
Turn-On resistance low side FET on
L.S. Switch
VIN = 12 V, TJ = 25°C
80
m
CH2
MOSFET (BUCK 3)
Turn-On resistance high side FET on
H.S. Switch
VIN = 12 V, TJ = 25°C
120
m
CH3
Turn-On resistance low side FET on
L.S. Switch
VIN = 12 V, TJ = 25°C
80
m
CH3
ERROR AMPLIFIER
gM
Error amplifier transconductance
–2 A < ICOMP < 2 A
130
mhos
gmPS
COMP to ILX gM
ILX = 0.5 A
10
A/V
POWER GOOD RESET GENERATOR
Output falling (device will be
85
disabled after tON_HICCUP )
Threshold voltage for buck under
VUVBUCKX
%
voltage
Output rising (PG will be
90
asserted)
tUV_deglitch
Deglitch time (both edges)
Each buck
11
ms
tON_HICCUP
Hiccup mode ON time
VUVBUCKX asserted
12
ms
All converters disabled. Once
Hiccup mode OFF time before
tOFF_HICCUP elapses, all
tOFF_HICCUP
15
ms
re-start is attempted
converters will go through
sequencing again.
Output rising (high side fet will
109
be forced off)
Threshold voltage for buck over
VOVBUCKX
%
voltage
Output falling (high side fet will
107
be allowed to switch )
Measured after minimum reset
tRP
minimum reset period
period of all bucks power-up
1
s
successfully
THERMAL SHUTDOWN
TTRIP
Thermal shut down trip point
Rising temperature
160
°C
THYST
Thermal shut down hysteresis
Device re-starts
20
°C
TTRIP_DEGLITCH
Thermal shut down deglitch
110
s
Copyright 2010–2011, Texas Instruments Incorporated
7
Product Folder Link(s): TPS65251
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| TPS65251RHAT | 功能描述:PMIC 解決方案 PMU with 3 DC/DC Converters RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| TPS65252EVM | 功能描述:電源管理IC開發(fā)工具 TPS65252 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS65252RHDR | 功能描述:PMIC 解決方案 4.5-16V Inp w/ 2 BUCK CONVERTER RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| TPS65252RHDT | 功能描述:PMIC 解決方案 4.5-16V Inp w/ 2 BUCK CONVERTER RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| TPS65253EVM | 功能描述:電源管理IC開發(fā)工具 TPS65253 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
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