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参数资料
| 型号： | L6590N |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 0.7 A SWITCHING REGULATOR, 74 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封装： | MINI, DIP-8 |
| 文件页数： | 12/23页 |
| 文件大小： | 383K |
| 代理商： | L6590N |
Obsolete
Product(s)
- Obsolete
Product(s)
L6590
2/23
DESCRIPTION (continued)
The MOSFET is source-grounded, thus it is possible
to build flyback, boost and forward converters.
The device can work with secondary feedback and a
2.5V±2% internal reference, in addition to a high gain
error amplifier, makes possible also the use in appli-
cations either with primary feedback or not isolated.
The internal fixed oscillator frequency and the integrated
non dissipative start-up generator minimize the external
component count and power consumption.
The device is equipped with a standby function that
automatically reduces the oscillator frequency from
65 to 22 kHz under light load conditions to enhance
efficiency (Pin <1W @ Pout = 0.5W with wide range
mains).
Internal protections like cycle-by-cycle current limiting,
latched output overvoltage protection, mains undervolt-
age protection (SMD version only) and thermal shut-
down generate a 'robust' design solution.
The IC uses a special leadframe with the ground pins
(6, 7 and 8 in minidip, 9 to16 in SO16W package) in-
ternally connected in order for heat to be easily re-
moved from the silicon die. An heatsink can then be
realized by simply making provision of few cm2 of
copper on the PCB. Furthermore, the pin(s) close to
the high-voltage one are not connected to ease com-
pliance with safety distances on the PCB.
BLOCK DIAGRAM
PIN CONNECTIONS (Top view)
SUPPLY
&UVLO
OVP
OCP
+
-
+
-
2.5V
+
-
DRAIN
(1)
[1]
VCC
(3)
[4]
BOK
[6]
COMP
(4)
[7]
GND
(6,7,8)
PGND
[9, ..., 16]
VREF
BROWNOUT
PWM
STANDBY
START-UP
OSC
65/22 kHz
THERMAL
SHUTDOWN
2.5V
-
+
VFB
(5)
[8]
VREF
SGND
[5]
[x] : L6590D (SO16W)
VFB
DRAIN
N.C.
Vcc
COMP
GND
MINIDIP
L6590
DRAIN
N.C.
Vcc
SGND
BOK
COMP
VFB
PGND
SO16W
L6590D
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| L6591TR | 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 |
| L6598 | 功能描述:PMIC 解决方案 High Volt Reson Cont RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| L6598_04 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:HIGH VOLTAGE RESONANT CONTROLLER |
| L6598D | 功能描述:PMIC 解决方案 High Volt Reson Cont RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
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