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PDF AP3983B Data sheet ( Hoja de datos )
| Número de pieza | AP3983B | |
| Descripción | HIGH FREQUENCY PRIMARY SIDE POWER SWITCHER | |
| Fabricantes | Diodes | |
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AP3983B/C/D
HIGH FREQUENCY PRIMARY SIDE POWER SWITCHER FOR OFF-LINE SMPS
Description
Pin Assignments
The AP3983B/C/D are series of high frequency power switcher for
power supplies with better conversion efficiency, better voltage &
current accuracy, and improved protection functions. Typical
applications include charger, adapter for ADSL, home appliance
power supply, LED lighting power supply and PC auxiliary power
supplies. The AP3983B/C/D with built in MOSFET, regulates the
output voltage and current in the primary side by piece-wise Pulse
Frequency Modulation (p-PFM) in discontinuous conduction mode
(DCM). The system operating frequency reduces linearly from heavy
load to light load in each interval of the p-PFM, and enters constant
current mode when the load current equals to the maximum system
output current.
The AP3983B/C/D has good transient characteristics. Typically,
minimal voltage of 4.3V at PCB side can be achieved for dynamic test
of 5V application system.
The AP3983B/C/D provides operating frequency dithering function to
improve EMC performance of power supply. The AP3983B/C/D also
has built-in fixed cable voltage drop compensation and adjustable line
voltage compensation.
The AP3983B/C/D solution has fewer component number, smaller
size, and lower total cost.
The AP3983B/C is packaged in SO-7. The AP3983C/D is packaged in
PDIP-7.
(Top View)
CPC 1
FB 2
VCC 3
CS 4
7 GND
6D
5D
SO-7 For AP3983B/C
(Top View)
CPC 1
FB 2
VCC 3
CS 4
7 GND
6D
5D
PDIP-7 For AP3983C/D
Features
Primary Side Control for Eliminating Opto-coupler
Better Transient Characteristics
Built-in N Channel MOSFET with 650 BVDSS
Low Start-up Current: 0.2A (Typ.)
Internal Output Cable Voltage Drop Compensation
Hiccup Function to Improve Short Circuit Protection
Better Over Voltage Protection
Better Over Temperature Protection
Low Total Cost Solution
Output Power Range (Note 1):
AP3983B for 6W Adapter
AP3983C (SO-7) for 7.5W
AP3983C (PDIP-7) for 10W Adapter
AP3983D for 18W Adapter
Totally Lead-Free & Fully RoHS Compliant (Notes 2 & 3)
Halogen and Antimony Free. “Green” Device (Note 4)
Applications
Adapters
Set Top Boxes
Auxiliary Supplies
Appliances
LED Driver
Notes:
1. Typical continuous power in a non-ventilated enclosed adapter measured at +50°C ambient.
2. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
3. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
4. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
AP3983B/C/D
Document number: DS36784 Rev. 4 - 2
1 of 13
www.diodes.com
July 2016
© Diodes Incorporated
1 page  
AP3983B/C/D
Electrical Characteristics (@VCC = 15V, TJ = +25°C, unless otherwise specified.)
Symbol
Parameter
Condition
Min
STARTUP AND UVLO SECTION
VTH_ST
Turn-on Voltage
VOPR(MIN)
Turn-off Voltage
– 13
–6
STANDBY CURRENT SECTION
IST Turn-on Current
ICC_OPR
Operating Current
VCC = VTH_ST-1V before
startup
Static current @ no load
OPERATING FREQUENCY SECTION (5% LOAD TO FULL LOAD)
fS(MAX)
Operating Frequency in Full Load
Condition
–
Δf/f Frequency Dithering
5% to 100% of full load
range
OPERATING FREQUENCY SECTION (NO LOAD TO 5% OF IOUT(MAX))
fS(MIN)
Output Voltage Detection Frequency
–
CURRENT SENSE SECTION
VCS_H
Peak Current Sense Voltage in Heavy
Load
ΔVCS/VCS
VCS Modulation for Frequency Dithering
tMOD
VCS Modulation Period
RLINE
Built-in Line Compensation Resistor
30% to 100% of full load
–
–
–
tLEB Leading Edge Blanking
@ VCS_H and VCS_M
@ VCS_EL
CONSTANT VOLTAGE SECTION
VFB
Equivalent Feedback Voltage @ Light
Load
RFB FB Pin Input Resistance
Closed loop test of VOUT
–
VCABLE/VOUT Cable Compensation Ratio
(VFB@FULLLOAD-VFB)/VFB
0
350
–
4
1.8
828
–
–
–
410
220
3.89
560
5.65
CONSTANT CURRENT SECTION
tONS/tSW
Secondary Winding Conduction Duty
VFB = 2V
–
POWER MOSFET SECTION
BVDSS
Drain-Source Breakdown Voltage
RDS(ON)
On State Resistor
–
AP3983B
AP3983C
AP3983D
650
–
–
–
PROTECTION FUNCTION SECTION
VFB(OVP)
Over Voltage Protection
VFB(SCP)
Short Circuit Protection
TOTP
Shutdown Temperature
THYS
Temperature Hysteresis
–
VFB @ Hiccup
–
–
–
1.4
+125
–
Typ
15.5
6.8
0.2
500
65
7
2
900
2.5
250
230
500
250
3.95
700
6.00
4/8
–
9
5
2.4
7.5
1.5
+160
+40
Max
18
7.6
0.6
650
80
10
2.2
972
–
–
–
575
288
4.01
840
6.40
–
–
12
6
3
–
1.6
–
–
Unit
V
V
μA
kHz
%
kHz
mV
%
μs
Ω
ns
ns
V
k
%
–
V
V
V
°C
°C
AP3983B/C/D
Document number: DS36784 Rev. 4 - 2
5 of 13
www.diodes.com
July 2016
© Diodes Incorporated
5 Page 
Package Outline Dimensions (Cont.) (All dimensions in mm (inch).)
(2) Package Type: PDIP-7
3.710(0.146)
4.310(0.170)
3.000(0. 118)
3.600(0. 142)
1.524(0. 060)BSC
3.200(0. 126)
3.600(0. 142)
0.510(0. 020) MIN
0.380(0. 015)
0.570(0. 022)
2.540(0. 100)BSC
AP3983B/C/D
7.320(0. 288)
7.920(0. 312)
0.204(0.008)
0.360(0. 014)
8.400(0. 331)
9.000(0. 354)
6.200(0. 244)
6.600(0. 260)
9.000(0. 354)
9.400(0. 370)
Note: Eject hole , oriented hole and mold mark is optiona.l
AP3983B/C/D
Document number: DS36784 Rev. 4 - 2
11 of 13
www.diodes.com
July 2016
© Diodes Incorporated
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet AP3983B.PDF ] | |
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