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L4984D датащи(PDF) 11 Page - STMicroelectronics

номер детали L4984D
подробное описание детали  CCM PFC controller
PDF  35 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4984D датащи(HTML) 11 Page - STMicroelectronics

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L4984D
Electrical characteristics
ΔV
Dropout VMULTpk-VVFF
Before turn-on
800
mV
After turn-on
20
ΔVVFF
Line drop detection threshold
Below peak value
25
60
100
mV
ΔVVFF
Line drop detection threshold
Below peak value Tj = 0 to 100 °C
40
70
100
mV
RDISCH
Internal discharge resistor
5
10
20
k
Ω
VDIS
Disable threshold
(1) Voltage falling
0.745
0.8
0.855
V
VEN
Enable threshold
(1) Voltage rising
0.845
0.88
0.915
V
Fixed-off-time modulator
ITIMER
Programming current
VMULT = 1 V
142
153
163
µA
TOFF
Programmed off-time
VMULT = 1 V
2.88
3.09
3.30
µs
RDIS
Discharge resistance
35
60
120
W
CTIMER
Timing capacitor range
0.1
2.2
nF
TOFF_pk
Programming range
On the peak of VMULT
1.45
50
µs
Soft-start
TSS
Activation time
300
µs
VMULTx
Pull-up voltage
10 k
Ω from MULT to GND
4.1
V
Gate driver
VOL
Output low voltage
Isink = 100 mA
0.6
1.2
V
VOH
Output high voltage
Isource = 5 mA
9.8
10.3
V
Isrcpk
Peak source current
-0.6
A
Isnkpk
Peak sink current
0.8
A
tf
Voltage fall time
30
60
ns
tr
Voltage rise time
45
110
ns
VOclamp
Output clamp voltage
Isource = 5 mA; Vcc = 20 V
10
12
15
V
UVLO saturation
VCC = 0 to VCCon, Isink = 2 mA
1.1
V
1. Parameters tracking each other.
2. The multiplier output is given by:
Table 5. Electrical characteristics (continued)
Symbol
Parameter
Test condition
Min
Typ
Max
Unit
 
()
2
5
2
V
CS _O fst
VFF
V
.
COMP
V
MULT
V
K
cs
V
M
−
⋅
⋅
+
=



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