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參數(shù)資料
| 型號： | L6902N |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數(shù)： | 2/6頁 |
| 文件大?。?/td> | 88K |
| 代理商： | L6902N |
L6902D
2/6
DESCRIPTION
(Continued)
Other protections beside thermal shutdown complete the device for a safe and reliable application: overvoltage
protection, frequency folback overcurrent protection and protection vs. feedback disconnection.
The internal fixed switching frequency of 250KHz, and the SO-8 package pin allow to built an ultra compact DC/
DC converter with a minimum board space.
PIN CONNECTION
PIN DESCRIPTION
THERMAL DATA
(*) Package mounted on board.
ABSOLUTE MAXIMUM RATINGS
N°
1
2
3
4
5
Pin
OUT
CS+
CS-
COMP
FB
Function
Regular Output
Current Error Amplifier input (current sense at higher voltage)
Current Error Amplifier input (current sense at lower voltage)
E/A output to be used for frequency compensation
Stepdown feedback input. Connecting directly to this pin results in an output voltage of 1.235V.
An external resistive divider is required for higher output voltages. In this case:
6
7
8
V
REF
GND
VCC
3.3V VREF. No cap is need for stability.
Ground
Unregulated DC input voltage.
Symbol
R
th j-amb
Parameter
Value
110 (*)
Unit
°C/W
Thermal Resistance Junction to Ambient Max.
Symbol
V
8
V
1
Parameter
Value
40
Unit
V
Input Voltage
Output DC voltageOutput peak voltage at t = 0.1
μ
s
-1 to 40
-5 to 40
V
V
I
1
Maximum output current
Analog pins
Analog pins
Power dissipation at T
amb
≤
70 °C
Operating junction temperature range
Storage temperature range
Internally limited
4
-0.3V to V
CC
0.7
-40 to 150
-55 to 150
V
4
, V
5
V
2
, V
3
P
tot
Tj
T
stg
V
V
W
°C
°C
8
6
4
7
3
2
5
1
OUT
CS+
CS-
COMP
VCC
GND
VREF
FB
V
out
V
FB
1
-------
+
1.235V 1
-------
+
=
=
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| L6910 | 功能描述:DC/DC 開關(guān)控制器 5.0 to 12V Step-Down RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| L6910_05 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:ADJUSTABLE STEP DOWN CONTROLLER WITH SYNCHRONOUS RECTIFICATION |
| L6910A | 功能描述:DC/DC 開關(guān)控制器 5.0 to 12V Step-Down RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| L6910ATR | 功能描述:DC/DC 開關(guān)控制器 5.0 to 12V Step-Down RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| L6910G | 功能描述:電壓模式 PWM 控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
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