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L6668 数据表(PDF) 6 Page - STMicroelectronics

部件名 L6668
功能描述  SMART PRIMARY CONTROLLER
PDF  23 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L6668 数据表(HTML) 6 Page - STMicroelectronics

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L6668
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(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
µA
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
µA
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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