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参数资料
| 型号： | L6590D |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 0.7 A SWITCHING REGULATOR, 74 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | SO-16 |
| 文件页数： | 17/23页 |
| 文件大小： | 383K |
| 代理商： | L6590D |
Obsolete
Product(s)
- Obsolete
Product(s)
3/23
L6590
PIN FUNCTIONS
THERMAL DATA
(*) Value depending on PCB copper area and thickness
.
ABSOLUTE MAXIMUM RATINGS
Pin#
Name
Description
L6590
L6590D
1
DRAIN
Drain connection of the internal power MOSFET. The internal high voltage start-up
generator sinks current from this pin.
2
2, 3
N.C.
Not internally connected. Provision for clearance on the PCB.
34
VCC
Supply pin of the IC. An electrolytic capacitor is connected between this pin and ground.
The internal start-up generator charges the capacitor until the voltage reaches the start-
up threshold. The PWM is stopped if the voltage at the pin exceeds a certain value.
47
COMP
Output of the Error Amplifier. Used for control loop compensation or to directly control
PWM with an optocoupler.
5
8
VFB
Inverting input of the Error Amplifier. The non-inverting one is internally connected to a
2.5V± 2% reference. This pin can be grounded in some feedback schemes.
6 to 8
-
GND
Connection of both the source of the internal MOSFET and the return of the bias current
of the IC. Pins connected to the metal frame to facilitate heat dissipation.
-
6
BOK
Brownout Protection. If the voltage applied to this pin is lower than 2.5V the PWM is
disabled. This pin is typically used for sensing the input voltage of the converter through
a resistor divider. If not used, the pin can be either left floating or connected to Vcc
through a 15 k
resistor.
-
5
SGND
Current return for the bias current of the IC.
-
9 to 16
PGND
Connection of the source of the internal MOSFET. Pins connected to the metal frame to
facilitate heat dissipation.
Symbol
Parameter
Minidip
SO16W
Unit
Rthj-amb
Thermal Resistance Junction to ambient (*)
35 to 60
40 to 65
°C/W
Rthj-pins
Thermal Resistance Junction to pins
15
20
°C/W
Symbol
Parameter
Value
Unit
Vds
Drain Source Voltage
-0.3 to 700
V
Id
Drain Current
0.7
A
Vcc
IC Supply Voltage
18
V
Iclamp
Vcc Zener Current
20
mA
Error Amplifier Ouput Sink Current
3
mA
Voltage on Feedback Input
5
V
BOK pin Sink Current
1
mA
Ptot
Power Dissipation at Tamb < 50°C (Minidip and SO16W)
3cm2, 2 oz copper dissipating area on PCB
1.5
W
Tj
Operating Junction Temperature
-40 to 150
°C
Tstg
Storage Temperature
-40 to 150
°C
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L6590D013TR | 功能描述:开关变换器、稳压器与控制器 700 Volt Monolithic RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| L6590ED | 功能描述:功率因数校正 IC STEP DOWN SWITCH REG RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| L6590ED013TR | 功能描述:功率因数校正 IC STEP DOWN SWITCH REG RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| L6590N | 功能描述:开关变换器、稳压器与控制器 700 Volt Monolithic RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| L6591 | 功能描述:开关变换器、稳压器与控制器 PWM CONTROLLER ZVS HALF-BRIDGE RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
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