AP2001
MONOLITHIC DUAL CHANNEL PWM CONTROLLER
AP2001 Rev. 1 1 of 9 NOVEMBER 2006
www.diodes.com © Diodes Incorporated
Lead-free
Lead-free
• Dual PWM control circuitry
• Operating voltage can be up to 50V
• Adjustable Dead Time Control (DTC)
• Under Voltage Lockout (UVLO) protection
• Short Circuit Protection (SCP)
• Variable oscillator frequency: 500KHz Max
• 2.5V voltage reference output
• PDIP-16L and SOP-16L packages
• Lead Free Finish/RoHS Compliant for Lead Free
products (Note 1)
The AP2001 integrates Pulse-width-Modulation (PWM) control
circuit into a single chip, mainly designed for power-supply
regulator. All the functions included are an on-chip 2.5V
reference output, two error amplifiers, an adjustable oscillator,
two dead-time comparators, UVLO, SCP, DTC circuitry, and dual
common-emitter (CE) output transistor circuit.
Recommend the output CE transistors as pre-driver for Driving
externally. The DTC can provide from 0% to 100%. Switching
frequency can be adjustable by trimming RT and CT. During low
VCC situation, the UVLO makes sure that the outputs are off until
the internal circuit is operating normally.
• Backlight inverter
• DC/DC converts in computers, etc.
Ordering Information
AP2001 X X X
Package Packing
N: PDIP-16L
S: SOP-16L
-U : Tube
-13 : Taping
Lead Free
L : Lead Free Package
(Note 2)
Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Tube 13” Tape and Reel
Device Package
Code Packaging
(Note 2) Quantity Part Number
Suffix Quantity Part Number Suffix
AP2001N N PDIP-16L 30 -U NA NA
AP2001S S SOP-16L 50 -U 2500/Tape & Reel -13
Note: 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
Features General Description
Applications
AP2001
MONOLITHIC DUAL CHANNEL PWM CONTROLLER
AP2001 Rev. 1 2 of 9 NOVEMBER 2006
www.diodes.com © Diodes Incorporated
1
2
3
15
14
13
12
11
10
98
7
6
5
4
16
CT
EA2+
EA2-
FB2
DTC2
OUT2
VCC
GND
OUT1
DTC1
FB1
EA1+
RT
REF
SCP
EA1-
( Top View )
PDIP-16L
1
2
3
15
14
13
12
11
10
98
7
6
5
4
16
CT
EA2+
EA2-
FB2
DTC2
OUT2
VCC
GND
OUT1
DTC1
FB1
EA1+
RT
REF
SCP
EA1-
( Top View )
SOP-16L
Pin Descriptions
Name Description
CT Timing Capacitor
RT Timing Resistor
EA+ Error Amplifier Input(+)
EA - Error Amplifier Input(-)
FB Feedback Loop Compensation
DTC Dead Time Control
OUT Pre-driver Output
GND Ground
VCC Supply Voltage
SCP Short Circuit Protection
REF Voltage Reference
Pin Assignments
AP2001
MONOLITHIC DUAL CHANNEL PWM CONTROLLER
AP2001 Rev. 1 3 of 9 NOVEMBER 2006
www.diodes.com © Diodes Incorporated
Block Diagram
Bandgap
Reference
DTC2
REF
OUT1
OUT2
PWM Amplifier 2
PWM Amplifier 1
EA1 +
EA1 -
VCC
Oscillator
RTSCP CT DTC1
Error Amplifier 1
FB1
EA2+
EA2 -
Error Amplifier 2
FB2
R
S
VREF
UVLO
R
MAX.500KHz
GND
170K
1.18V
+
-
+
-
+
+
+
+
-
Absolute Maximum Ratings
Symbol Parameter Rating Unit
VCC Supply Voltage 40 V
VI Amplifier Input Voltage 20 V
VO Collector Output Voltage 40 V
Io Collector Output Current 21 mA
TOP Operating Temperature Range -20 to +85 oC
TST Storage Temperature Range -65 to +150 oC
TLEAD Lead Temperature 1.6 mm (1/16 inch) from Case for 5 Seconds 245 oC
AP2001
MONOLITHIC DUAL CHANNEL PWM CONTROLLER
AP2001 Rev. 1 4 of 9 NOVEMBER 2006
www.diodes.com © Diodes Incorporated
Recommended Operating Conditions
Symbol Parameter Min. Max. Unit
VCC Supply Voltage 3.6 40 V
VI Amplifier Input Voltage 1.05 1.45 V
VO Collector Output Voltage 40 V
IO Collector Output Current 20 mA
IFB Current into Feedback Terminal 45 µA
RF Feedback Resistor 100 kΩ
CT Timing Capacitor 150 15000 pF
RT Timing Resistor 5.1 100 kΩ
FOSC Oscillator Frequency 1 500 KHz
TOP Operating Free-air Temperature -20 85 ºC
Electrical Characteristics (TA = 25ºC, VCC = 6V, f = 200 KHz)
Reference (REF)
Symbol Parameter Conditions Min. Typ. Max. Unit
Output Voltage (pin 16) IO = 1mA 2.4 2.5 2.6 V
TA = -20ºC ~ 25ºC -0.1 ±1 %
VO Output Voltage Change with
Temperature TA = 25ºC ~ 85ºC -0.2 ±1 %
VDLI Input Stability VCC = 3.6V ~ 40V 2 12.5 mV
VDLO Output Stability IO = 0.1 mA ~ 1mA 1 7.5 mV
IO Short-circuit Output Current VO = 0 3 10 30 mA
Under voltage lockout (UVLO)
Symbol Parameter Conditions Min. Typ. Max. Unit
VUT Upper Threshold Voltage (VCC) 2.65 V
VLWT Lower Threshold Voltage (VCC) 2.45 V
VHT Hysteresis (VCC)
IO(REF) = 0.1mA
TA = 25ºC 80 200 mV
AP2001
MONOLITHIC DUAL CHANNEL PWM CONTROLLER
AP2001 Rev. 1 5 of 9 NOVEMBER 2006
www.diodes.com © Diodes Incorporated
Electrical Characteristics ( Continued )
Short-circuit protection (SCP) control
Symbol Parameter Conditions Min. Typ. Max. Unit
VIT Input Threshold Voltage TA = 25ºC 0.65 0.7 0.75 V
VSTB Standby Voltage No pull up 140 185 230 mV
VLT Latched Input Voltage No pull up 60 120 mV
ISCP Input (Source) Current VI = 0.7V, TA = 25ºC -10 -15 -20 µA
VCT Comparator Threshold Voltage (FB) 1.18 V
Oscillator (OSC)
Symbol Parameter Conditions Min. Typ. Max. Unit
FOSC Frequency CT = 330 pF, RT = 10 KΩ 200 KHz
Standard Deviation of Frequency CT = 330 pF, RT = 10 KΩ 10
Frequency Change with Voltage VCC = 3.6V ~ 40V 1
TA = -20ºC ~ 25ºC -0.4 ± 2
∆FOSC
Frequency Change with Temperature TA = 25ºC ~ 85ºC -0.2 ± 2
%
Dead-time control (DTC)
Symbol Parameter Conditions Min. Typ. Max. Unit
IBDT Input Bias Current 1
IDT Latch Mode (Source) Current TA = 25ºC -80 -145 µA
VDT Latched Input Voltage IO = 40µA 2.3
VT0 Zero duty cycle 2.05 2.25
VT100 Input Threshold Voltage at f= 10 KHz Maximum duty cycle 1.2 1.45
V
Error-amplifier
Symbol Parameter Conditions Min. Typ. Max. Unit
VIO Input Offset Voltage VO (FB) = 1.25V ±6 mV
IIO Input Offset Current VO (FB) = 1.25V ±100 nA
IIB Input Bias Current VO (FB) = 1.25V 160 500 nA
1.05
to
VCM Common-mode Input Voltage
Range VCC = 3.6V ~ 40V
1.45
V
AV Open-loop Voltage
Amplification RF = 200 KΩ 70 80 dB
GBW Unity-gain Bandwidth 1.5 MHz
CMRR Common-mode Rejection
Ratio 60 80 dB
VOH Max. Output Voltage Vref-0.1 V
VOL Min. Output Voltage 1 V
IOI Output (Sink) Current (FB) VID = -0.1V, VO = 1.25V 0.5 1.6 mA
IOO Output (Source) Current (FB) VID = 0.1V, VO = 1.25V -45 -70 µA
AP2001
MONOLITHIC DUAL CHANNEL PWM CONTROLLER
AP2001 Rev. 1 6 of 9 NOVEMBER 2006
www.diodes.com © Diodes Incorporated
Electrical Characteristics ( Continued )
Output section
Symbol Parameter Conditions Min. Typ. Max. Unit
ILEAK Leakage Current VO = 40V 10 µA
VSAT Output Saturation Voltage IO = 10 mA 1.2 2 V
ISC Short-circuit Output Current VO = 6V 90 mA
PWM comparator
Symbol Parameter Conditions Min. Typ. Max. Unit
VT0 Zero duty cycle 2.05 2.25 V
VT100
Input Threshold Voltage at f =
10 KHz (FB) Maximum duty cycle 1.2 1.45 V
Total device
Symbol Parameter Conditions Min. Typ. Max. Unit
ICCS Standby Supply Current Off-state 2.5 3.0 mA
ICCA Average Supply Current RT = 10 KΩ 2.8 3.5 mA
Typical Application Circuit
AP2001
12345678
16 15 14 13 12 11 10 9
C5 R5
33k
33k
500
pF
470
470 470
220 1uF L2
R6
R7
C4
Buck Output
V
ref
33k
500pF
C1
R2
R133k
50k0.47uF
V
CC
200k 470
33k
22k
330pF
150 L1
R3
R4
C2
Boost Output
Note:
Values for R1 through R7 , C1 through C4 , and
L1 and L2 depend upon individual application.
Dual output DC/DC converter
AP2001
MONOLITHIC DUAL CHANNEL PWM CONTROLLER
AP2001 Rev. 1 7 of 9 NOVEMBER 2006
www.diodes.com © Diodes Incorporated
Marking Information
(1) SOP-16L
( Top View )
SOP-16L
1
9
8
AP2001
YY WW X X
Logo ID code
Year: "01" = 2001
"02" = 2002
Xth week: 01~52
~
16
Part No. L: Lead Free Package
(2) PDIP-16L
( Top View )
PDIP-16L
1
9
8
AP2001
YY WW X X
Logo ID code
Year: "01" = 2001
"02" = 2002
Xth week: 01~52
~
16
Part No. L: Lead Free Package
AP2001
MONOLITHIC DUAL CHANNEL PWM CONTROLLER
AP2001 Rev. 1 8 of 9 NOVEMBER 2006
www.diodes.com © Diodes Incorporated
Package Information
(1) Package Type: SOP-16L
(2) Package Ty pe: PDIP-16L
AP2001
MONOLITHIC DUAL CHANNEL PWM CONTROLLER
AP2001 Rev. 1 9 of 9 NOVEMBER 2006
www.diodes.com © Diodes Incorporated
IMPORTANT NOTICE
LIFE SUPPORT
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further
notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither
does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will
agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages.
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the
President of Diodes Incorporated.
