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参数资料
| 型号： | L6668 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 0.8 A SWITCHING CONTROLLER, 105 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | LEAD FREE, SOP-16 |
| 文件页数： | 20/23页 |
| 文件大小： | 720K |
| 代理商： | L6668 |
L6668
6/23
(1), (2)
Parameters in tracking each other
Figure 4. Typical System Block Diagram
VSSsat
Low saturation voltage
Duty cycle = 0
0.6
V
VSSclamp
High saturation voltage
7
V
SKIPADJ FUNCTION
Ibias
Input Bias Current
VSKIP = 0 to 4.5 V
-1
A
VSKIP
Operating range
1.4
2.5
V
Hys
Hysteresis
Below VSKIP
25
85
mV
VOFF
Shutdown threshold
Voltage falling
0.8
V
PFC_STOP FUNCTION
Ileak
High level leakage current
VPFC_STOP < 16V, VCOMP = 2V
1
A
VL
Low saturation level
IPFC_STOP = 1mA, VCOMP = 4V
0.1
V
Vth
Threshold for high level
VCOMP falling
(2)
2.1
2.2
2.3
V
Vth
Threshold for high level
VCOMP rising
(2)
2.55
2.7
2.85
V
GATE DRIVER
VOL
Output Low Voltage
Isink = 200 mA
1.0
V
VOH
Output High voltage
Isource = 5 mA, Vcc = 12V
9.8
10.3
V
Isourcepk
Peak source current
-0.8
A
Isinkpk
Peak sink current
0.8
A
tf
Current Fall Time
30
ns
tr
Current Rise Time
55
ns
VOclamp
Output clamp voltage
Isource = 5mA; Vcc = 20V
10
12
15
V
UVLO saturation
Vcc= 0 to Vccon, Isink= 2mA
1.1
V
Table 5. Electrical Characteristcs (continued)
(Tj = 0 to 105°C, Vcc=15V, Co=1nF; RT =13.3k , CT =1nF; unless otherwise specified)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Vinac
Voutdc
L6561/2
or
L6563
PWM is turned off in case of PFC's
anomalous operation, for safety
PFC can be turned off at light
load to ease compliance with
energy saving regulations.
L6668
PFC PRE-REGULATOR
DC-DC CONVERTER
Vinac
Voutdc
L6561/2
or
L6563
PWM is turned off in case of PFC's
anomalous operation, for safety
PFC can be turned off at light
load to ease compliance with
energy saving regulations.
L6668
PFC PRE-REGULATOR
DC-DC CONVERTER
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L6668_06 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:SMART PRIMARY CONTROLLER |
| L6668B2 | 功能描述:电流型 PWM 控制器 POWER SUPPLY RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| L6668TR | 功能描述:电流型 PWM 控制器 SMART CONTROLLER RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| L667 | 制造商:BURNDY 功能描述:L-DIE |
| L-667 | 制造商:RHOMBUS-IND 制造商全称:Rhombus Industries Inc. 功能描述:Common Mode Inductor For DC/DC Power supply |
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