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PDF AP3989 Data sheet ( Hoja de datos )
| Número de pieza | AP3989 | |
| Descripción | PRIMARY SIDE POWER SWITCHER | |
| Fabricantes | Diodes | |
| Logotipo |  |
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A Product Line of
Diodes Incorporated
AP3988/89/90
PRIMARY SIDE POWER SWITCHER FOR OFF-LINE SMPS
Description
The AP3988/89/90 is a performance enhanced 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 controller 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.
Pin Assignments
(Top View)
CPC 1
FB 2
VCC 3
CS 4
7 GND
6C
5C
SO-7 (M Package) For AP3988
The AP3988/89/90 provides operating frequency dithering function
to improve EMC performance of power supply. The AP3988/89/90
also has built-in fixed cable voltage drop compensation (5% of
nominal system output voltage) and adjustable line voltage
compensation.
The AP3988/89/90 solution has fewer component number, smaller
size, and lower total cost.
The AP3988 is packaged in SO-7. The AP3989/90 is packaged in
PDIP-7.
(Top View)
CPC 1
FB 2
7 GND
VCC 3
CS 4
6C
5C
PDIP-7 (P7 Package) For AP3989/90
Features
Primary Side Control for Eliminating Opto-coupler and
Secondary CV/CC Control Circuitry
Built-in NPN Transistor with 700VCBO
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):
AP3988 for 5.5W Adapter
AP3989 for 8W Adapter
AP3990 for 12W Adapter
Totally Lead-free & Fully RoHS Compliant (Note 2 & 3)
Halogen and Antimony Free. “Green” Device (Note 4)
Applications
Adapters
Set Top Boxes
Auxiliary Supplies
Appliances
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.
AP3988/89/90
Document number: DS36722 Rev. 3 - 2
1 of 13
www.diodes.com
March 2014
© Diodes Incorporated
1 page  
A Product Line of
Diodes Incorporated
AP3988/89/90
Electrical Characteristics (@VCC=15V, TJ=+25°C, unless otherwise specified.)
Symbol
Parameters
Conditions
STARTUP AND UVLO SECTION
VTH_ST
Turn-on Voltage
VOPR(MIN)
Turn-off Voltage
–
–
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
VCS_M
Peak Current Sense Voltage in Middle
Load
VCS_L
Peak Current Sense Voltage in Light
Load
VCS_EL
Peak Current Sense Voltage in Extra-
Light Load
ΔVCS/VCS
VCS Modulation for Frequency Dithering
tMOD
VCS Modulation Period
RLINE
Built-in Line Compensation Resistor
40% to 100% of full load
18% to 40% of full load
5% to 18% of full load
0% to 5% of full load
–
–
–
tLEB Leading Edge Blanking
@ VCS_H and VCS_M
@ VCS_EL
CONSTANT VOLTAGE SECTION
VFB
Equivalent Feedback Voltage @ Light
Load
IFB FB Pin Input Current
VCABLE/VOUT Cable Compensation Ratio
Closed loop test of VOUT
VFB=4V
(VFB@FULLLOAD-VFB)/VFB
CONSTANT CURRENT SECTION
tONS/tSW
Secondary Winding Conduction Duty
VFB=2V
POWER TRANSISTOR SECTION
VCE(SAT)
Collector-emitter Saturation Voltage
hFE DC Current Gain
AP3988/89: IC=0.5A
AP3990: IC=1A
AP3988/89
AP3990
ICEO Leakage Current
–
PROTECTION FUNCTION SECTION
VFB(OVP)
Over Voltage Protection
–
VFB(SCP)
TOTP
THYS
–
Short Circuit Protection
Shutdown Temperature
Temperature Hysteresis
Driver Protection Voltage
VFB @ Hiccup
–
–
–
AP3988/89/90
Document number: DS36722 Rev. 3 - 2
5 of 13
www.diodes.com
Min
13
5.2
0
550
–
4.5
1.8
874
581
390
216
–
14.4
260
410
155
3.94
3.36
5.65
–
–
14
17
–
–
1.4
+125
–
4
Typ
15
5.8
0.2
650
–
5
2
910
605
405
225
2.5
16
330
500
200
4.00
4.20
6.00
4/7
–
17
26
–
7.5
1.5
+160
+40
5
Max
17
6.4
Unit
V
V
0.6
μA
750
60 kHz
5.5 %
2.2 kHz
946 mV
630 mV
425 mV
234
–
17.6
400
575
245
mV
%
ms
Ω
ns
ns
4.06
5.04
6.40
–
V
μA
%
–
0.3 V
––
––
60 μA
–V
1.6 V
– °C
– °C
6V
March 2014
© Diodes Incorporated
5 Page 
Package Outline Dimensions (cont.) (All dimensions in mm (inch).)
(2) Package Type: PDIP-7
A Product Line of
Diodes Incorporated
AP3988/89/90
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)
7.320(0. 288)
7.920(0. 312)
0.510(0. 020) MIN
0.380(0. 015)
0.570(0. 022)
2.540(0. 100)BSC
8.400(0. 331)
9.000(0. 354)
0.204(0.008)
0.360(0. 014)
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
AP3988/89/90
Document number: DS36722 Rev. 3 - 2
11 of 13
www.diodes.com
March 2014
© Diodes Incorporated
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet AP3989.PDF ] | |
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