L4984D STMicroelectronics, L4984D Datasheet - Page 10

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

Specifications of L4984D

• Rohs: yes

Electrical characteristics
Table 5.
10/35
Current sense comparator
Boost inductor saturation detector
Pfc_ok functions
Feedback failure detection
Voltage feedforward
V
V
V
V
V
V
V
Symbol
PFC_OK_C
PFC_OK_S
PFC_OK_R
PFC_OK_D
PFC_OK_E
INVCLAMP
I
V
Vcs
PFC_OK
V
I
t
td
CSclamp
V
START
COMP
V
t
COMP
I
CS_th
I
GB
I
Gv
LEB
INVD
INV
INV
(H-L)
CS
VFF
ofst
Electrical characteristics (continued)
Line regulation
Input bias current
Internal clamp level
Voltage gain
Gain-bandwidth product
Source current
Sink current
Upper clamp voltage
Burst-mode threshold
Lower clamp voltage
Input bias current
Leading edge blanking
Delay to output
Current sense reference
clamp
Current sense offset
Threshold on current sense
E/A input pull-up current
Restart delay
Input bias current
Clamp voltage
OVP threshold
Restart threshold after OVP
Disable threshold
Enable threshold
Feedback failure detection
threshold (on V
Linear operation range
Parameter
INV
)
(2)
Doc ID 023489 Rev 3
V
V
I
Open loop
V
V
I
(1)
I
V
V
V
V
V
(1)
V
V
I
(1)
(1)
(1)
(1)
(1)
V
INV
SOURCE
SINK
PFC_OK
CC
INV
COMP
COMP
CS
COMP
MULT
MULT
MULT
CS
PFC_OK
PFC_OK
Voltage rising
Voltage falling
Voltage falling
Voltage rising
Voltage falling,
= 1 mA
= 0
> V
= 10.3 V to 22.5 V
= 0 to 4 V
= 0.5 mA
= V
= 0, V
= 3 V, V
= 4 V, V
= 4 V, V
= upper clamp
CS_th
= 1 mA
= 0.5 mA
= V
= 0 to 2.6 V
Test condition
VFF
PFC_OK_S
VFF
, before restart
= 0.915 V
VFF
(3)
INV
INV
= 3 V
= 3 V
= 2.4 V
= 2.6 V
(1)
2.435
Min.
2.34
0.12
0.15
0.84
1.61
145
100
2.5
5.7
2.3
2.1
1.6
60
8
2
9
1
5
Typ.
2.25
0.23
0.27
0.88
1.66
-0.2
-0.1
220
200
300
4.5
6.2
2.4
1.7
9.5
2.5
2.4
80
35
10
10
2
9
1
4
2.565
Max.
0.93
2.46
0.35
0.38
1.71
400
300
6.7
2.5
2.4
1.8
47
13
-1
-1
5
1
3
L4984
MHz
Unit
mV
mA
mA
mV
µA
dB
µA
µA
µA
ns
ns
µs
V
V
V
V
V
V
V
V
V
V
V