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L4981B डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - POWER FACTOR CORRECTOR - STMicroelectronics

भाग संख्या L4981B
समारोह POWER FACTOR CORRECTOR
मैन्युफैक्चरर्स STMicroelectronics 
लोगो STMicroelectronics लोगो 
पूर्व दर्शन
1 Page
		
<?=L4981B?> डेटा पत्रक पीडीएफ

L4981B pdf
L4981A - L4981B
put filter; both the operating frequency modes
working with an average current mode PWM con-
troller, maintaining sinusoidal line current without
slope compensation.
Besides power MOSFET gate driver, precise volt-
age reference (externally available), error ampli-
fier, undervoltage lockout, current sense and the
soft start are included. To limit the number of the
external components, the device integrates pro-
tections as overvoltage and overcurrent. The
overcurrent level can be programmed using a
simple resistor for L4981A. For a better precision
and for L4981B an external divider must be used.
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
IGDRV
VGDRV
VVA-OUT
IAC
VCA-OUT
VROSC
ICOSC
IFREQ-MOD
VSYNC
VIPK
Ptot
Top
Tstg
Pin Parameter
19 Supply Voltage (ICC 50mA) (*)
20 Gate driv. output peak current (t = 1µs)
SINK
. SOURCE
Gate driv. output voltage t = 0.1µs
Voltages at pins 3, 14, 7, 6, 12, 15
13 Error Amplifier Voltage
4 AC Input Current
Voltages at pin 8, 9
5 Current Amplifier Volt. (Isource = -20mA; Isink = 20mA)
17 Voltage at pin 17
11, 18 Voltage at pin 11, 18
18 Input Sink Current
16 Frequency Modulation Sink Current (L4981B)
16 Sync. Voltage (L4981A)
2 Voltage at pin 2
Voltage at Pin 2 t = 1µs
Power Dissipation at Tamb = 70°C
Power Dissipation at Tamb = 70°C
(DIP20)
(SO20)
Operating Ambient Temperature
StorageTemperature
(*) Maximum package power dissipation limits must be observed.
PIN CONNECTIONS (Top views)
Value
selflimit
2
1.5
-1
-0.3 to 9
-0.3 to 8.5
5
-0.5 to 7
-0.3 to 8.5
-0.3 to 3
-0.3 to 7
15
5
-0.3 to 7
-0.3 to 5.5
-2
1
0.6
-40 to 125
-55 to 150
Unit
V
Α
A
V
V
V
mA
V
V
V
V
mA
mA
V
V
V
W
W
°C
°C
L4981A
L4981B
2/16

विन्यास 16 पेज
डाउनलोड[ L4981B Datasheet.PDF ]


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अनुशंसा डेटापत्रक

भाग संख्याविवरणविनिर्माण
L4981APOWER FACTOR CORRECTORSTMicroelectronics
STMicroelectronics
L4981BPOWER FACTOR CORRECTORSTMicroelectronics
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