L4984D STMicroelectronics, L4984D Datasheet - Page 11

• Manufacturer Part Number: L4984D
• Description: Power Factor Correction ICs Current Mode PFC CCM Line Modulated Bi
• Manufacturer: STMicroelectronics

Specifications of L4984D

• Rohs: yes

L4984
Table 5.
1. Parameters tracking each other.
2. The multiplier output is given by:
Fixed-off-time modulator
Soft-start
Gate driver
Symbol
T
V
R
C
V
ΔV
ΔV
I
I
OFF_pk
TIMER
T
I
Oclamp
V
R
DISCH
V
TIMER
MULTx
V
snkpk
T
V
srcpk
ΔV
OFF
DIS
DIS
OH
SS
t
t
EN
OL
VFF
VFF
f
r
Electrical characteristics (continued)
Dropout V
Line drop detection threshold
Line drop detection threshold
Internal discharge resistor
Disable threshold
Enable threshold
Programming current
Programmed off-time
Discharge resistance
Timing capacitor range
Programming range
Activation time
Pull-up voltage
Output low voltage
Output high voltage
Peak source current
Peak sink current
Voltage fall time
Voltage rise time
Output clamp voltage
UVLO saturation
Parameter
MULTpk
-V
VFF
V
cs
=
V
CS _O fst
Doc ID 023489 Rev 3
Before turn-on
After turn-on
Below peak value
Below peak value Tj = 0 to 100 °C
(1)
(1)
V
V
On the peak of V
10 kΩ from MULT to GND
I
I
I
V
sink
source
source
MULT
MULT
CC
Voltage falling
Voltage rising
+
= 100 mA
= 0 to V
K
= 1 V
= 1 V
= 5 mA
= 5 mA; Vcc = 20 V
M
⋅
V
Test condition
MULT
CCon
⋅
(
V
MULT
, I
V
VFF
COMP
2
sink
= 2 mA
−
2
.
5
)
0.745
0.845
Min.
2.88
1.45
-0.6
142
0.1
9.8
0.8
25
40
35
10
5
Electrical characteristics
Typ.
0.88
3.09
10.3
153
300
0.8
4.1
0.6
60
70
10
60
30
45
12
0.855
0.915
Max.
3.30
800
100
100
163
120
110
2.2
1.2
1.1
20
20
50
60
15
Unit
mV
mV
mV
µA
kΩ
nF
µs
µs
µs
ns
ns
11/35
V
V
V
V
V
A
A
V
V
Ω