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參數資料
| 型號： | AAT1231ITP-T1 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | Step-Up DC/DC Converters for White LED Backlight Applications |
| 中文描述： | 升壓型DC / DC轉換器，用于白光LED背光應用 |
| 文件頁數： | 4/27頁 |
| 文件大?。?/td> | 1535K |
| 代理商： | AAT1231ITP-T1 |
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Electrical Characteristics
1
T
A
= -40°C to +85°C unless otherwise noted. Typical values are at 25°C, V
IN
= 3.6V.
Symbol
Description
Conditions
Min
Typ
Max
Units
Power Supply
PV
IN
, V
IN
V
OUT(MAX)
I
Q
I
SHDN
Input Voltage Range
Maximum Output Voltage
Operating Current
Shutdown Current
Maximum Continuous Output
Current
2
2.7
5.5
24
70
1.0
V
V
μA
μA
SEL = GND, FB = 0.1V
EN/SET = GND
40
I
OUT
2.7V < V
IN
< 5.5V, V
OUT
= 24V
50
mA
Δ
V
LINEREG(FB)
/
Δ
V
IN
R
DS(ON) L
Line Regulation
V
IN
= 2.7V to 5.5V, V
FB
= 0.6V
0.7
%/V
Low Side Switch On Resistance
Input Disconnect Switch
On Resistance
80
m
Ω
R
DS(ON) IN
180
m
Ω
T
SS
Soft-Start Time
From Enable to Output Regulation;
V
FB
= 300mV
V
OUT
Rising
V
OUT
Falling
300
μs
V
OVP
Over-Voltage Protection Threshold
Over-Voltage Hysteresis
N-Channel Current Limit
T
J
Thermal Shutdown Threshold
T
J
Thermal Shutdown Hysteresis
1.1
1.2
100
2.5
140
15
1.3
V
mV
A
°C
°C
I
LIMIT
T
SD
T
HYS
SEL, EN/SET
V
SEL(L)
V
SEL(H)
V
EN/SET(L)
V
EN/SET(H)
T
EN/SET (LO)
T
EN/SET(HI)
T
OFF
T
LAT
I
EN/SET
AAT1231
SEL Threshold Low
SEL Threshold High
Enable Threshold Low
Enable Threshold High
EN/SET Low Time
EN/SET High Time
EN/SET Off Timeout
EN/SET Latch Timeout
EN/SET Input Leakage
0.4
V
V
V
V
μs
μs
μs
μs
μA
1.4
0.4
1.4
0.3
V
EN/SET
< 0.6V
V
EN/SET
> 1.4V
V
EN/SET
< 0.6V
V
EN/SET
> 1.4V
V
EN/SET
= 5V V
IN
= 5V
75
75
500
500
1
-1
V
IN
= 2.7V to 5.5V, SEL = GND,
EN/SET = HIGH
V
IN
= 2.7V to 5.5V, SEL = HIGH,
EN/SET = DATA16
0.09
0.1
0.11
FB
FB Pin Regulation
V
0.564
0.6
0.636
AAT1231-1
V
IN
= 2.7V to 5.5V, SEL = GND,
EN/SET = DATA16
V
IN
= 2.7V to 5.5V, SEL = HIGH,
EN/SET = HIGH
0.09
0.1
0.11
FB
FB Pin Regulation
V
0.564
0.6
0.636
AAT1231/1231-1
Step-Up DC/DC Converters for
White LED Backlight Applications
4
1231.2007.01.1.2
1. Specification over the -40°C to +85°C operating temperature range is assured by design, characterization, and correlation with statis-
tical process controls.
2. Maximum continuous output current increases with reduced output voltage, but may vary depending on operating efficiency and ther-
mal limitations.
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| AAT1232ITP-T1 | 功能描述:開關變換器、穩(wěn)壓器與控制器 24V 100mA Step-Up RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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