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參數(shù)資料
| 型號(hào)： | L6902 |
| 英文描述： | 1A CONSTANT CURRENT BATTERY CHARGER |
| 中文描述： | 第1A恒電流電池充電器 |
| 文件頁(yè)數(shù)： | 2/6頁(yè) |
| 文件大?。?/td> | 88K |
| 代理商： | L6902 |
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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PDF描述 |
|---|---|
| L6902N | Analog IC |
| L6911A | Industrial Control IC |
| L6911C | Analog IC |
| L6911CTR | Analog IC |
| L6911E | 5 BIT PROGRAMMABLE STEP DOWN CONTROLLER WITH SYNCHRONOUS RECTIFICATION |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6902D | 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 1.235 to 34V Step-Dn RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| L6902D_04 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:UP TO 1A SWITCHING REGULATOR WITH ADJUSTABLE CURRENT LIMIT |
| L6902D013TR | 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 1.235 to 34V Step-Dn RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| L6902N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| L6910 | 功能描述:DC/DC 開(kāi)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(kāi)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 |
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