ML4821CSX_NL Fairchild Semiconductor, ML4821CSX_NL Datasheet

ML4821CSX_NL

Manufacturer Part Number
ML4821CSX_NL
Description
Manufacturer
Fairchild Semiconductor
Datasheet

Specifications of ML4821CSX_NL

Start-up Supply Current
800uA
Switching Freq
110kHz
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Package Type
SOIC W
Pin Count
20
Mounting
Surface Mount
Lead Free Status / RoHS Status
Compliant
Features
Block Diagram
ML4821
Power Factor Controller
11
1
2
3
4
5
8
6
7
9
OVP
I
IA OUT
IA–
IA+
I
V
EA OUT
EA–
SOFT START
LIM
SINE
RMS
V
REF
+
+
MODULATOR
+
GAIN
OUT
V
REF
+
+
V
REF
0.7V
General Description
+
R
S
OSC
Q
SLEEP
V
17V
VOLTAGE
LOCKOUT
LIMIT
UNDER
www.fairchildsemi.com
REV. 1.0.2 6/19/01
PGND
SYNC
V
GND
OUT
V
REF
CC
R
C
T
T
16
18
15
14
13
12
10
17

Related parts for ML4821CSX_NL

ML4821CSX_NL Summary of contents

Page 1

ML4821 Power Factor Controller Features Block Diagram OVP LIM 1 – OUT 2 IA– 3 – SINE OUT 5 GAIN V RMS MODULATOR 8 EA OUT 6 EA– 7 – V ...

Page 2

ML4821 Pin Connection 18-Pin PDIP (P18 LIM IA OUT 2 IA– SINE EA OUT 6 EA– RMS SOFT START 9 TOP VIEW Pin Description Pin Number 18-Pin DIP 20-Pin SOIC ...

Page 3

PRODUCT SPECIFICATION Absolute maximum ratings Parameter Supply Current ( OUT Current, Source or Sink Output Energy (capacitive load per cycle) I Input Current SINE EA OUT Source Current Oscillator Charge Current Input Voltage Junction Temperature Storage Temperature Range ...

Page 4

ML4821 Electrical Characteristics = 6.2k Ω Unless otherwise specified Parameter Voltage Error Amplifier Input Offset Voltage Input Bias Current Open Loop Gain PSRR Output Sink Current Output Source Current Output High Voltage Output Low Voltage Unity ...

Page 5

PRODUCT SPECIFICATION Electrical Characteristics = 6.2k Ω Unless otherwise specified Parameter Output Output Voltage Low Output Voltage High Output Voltage Low in UVLO Output Rise/Fall Time Undervoltage Lockout Start-up Threshold Shut-Down Threshold V Good Threshold REF ...

Page 6

ML4821 Functional Description Oscillator OSC RAMP DISCHARGE T = C(Ramp Valley to Peak) ÷ (I RAMP T = C(Ramp Valley to Pk) ÷ (8.4mA – I DISCHARGE CLOCK t D RAMP PEAK C T RAMP ...

Page 7

PRODUCT SPECIFICATION INV 7 – + +8V V S.S REF 9 Figure 3. Error and Current Amplifier Configuration 0 SOURCE V CC SATURATION . 25° –55° –55°C A 2.0 SINK ...

Page 8

ML4821 Under Voltage Lockout, OVP and Current Limit 500 R = 5kΩ RMS 400 300 200 100 0 0 100 200 300 SINE INPUT CURRENT (µA) Figure 7. Gain Modulator Linearity ...

Page 9

PRODUCT SPECIFICATION Off-line Start-up and Bias Supply Generation R10 39kΩ 1µ 1µ OUT ≈ N 14V S Figure 11. Bias and Start-up Circuit. REV. 1.0.2 6/19/ PIN ...

Page 10

ML4821 F1 5A, 250V 90-264 C1 VAC 1µ 910kΩ R5 2kΩ R6 2.7kΩ R13 C2 20kΩ 120pF C5 1.5nF C3 0.1µF D5 R12 1N5406 2.7kΩ C4 1.5nF D6 R1 1N5406 0.25Ω ...

Page 11

PRODUCT SPECIFICATION Mechanical Dimensions 18 PIN 0.045 MIN (1.14 MIN) (4 PLACES) 0.170 MAX (4.32 MAX) 0.125 MIN (3.18 MIN) 0.498 - 0.512 (12.65 - 13.00) 20 PIN 0.024 - 0.034 0.050 BSC (0.61 ...

Page 12

... NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems ...

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