Diodes AP3041EV1 User manual

AP3041EV1 User Guide
AP3041EV1 Page 1 of 7
May 2014
www.diodes.com
General Description
This demonstration board utilizes the
AP3041 high voltage low-side N-channel
MOSFET controller ideal for boost
regulators. It contains all the features
needed to implement single-ended primary
topology DC/DC converters. The input
voltage of AP3041 ranges from 5V to 27V.
Its operation frequency is adjustable from
100kHz to 1MHz.
The AP3041 has UVLO (Under Voltage Lock
Out) circuit. It uses two external resistors to
set the UVLO voltage. The AP3041 also has
an over output voltage protection to limit
the output voltage. The OVP voltage can be
set through external resistors. If the output
voltage is higher than the OVP high
threshold point, it will disable the driver
and the system is latched up. The output
short circuit protection as well as LED low
side short to ground detection function can
be applied in system.
The AP3041 has other protection functions,
such as LED short protection, LED high side
short to ground protection, diode short
protection, over current protection, over
temperature protection and so on.
Applications
• LED Lighting
• LED TV
• LCD Display Modules
Key Features
Input Voltage Range: 5V to 27V
1A Peak and 10V MOSFET Gate Driver
20ns Quick MOSFET Gate Driver
Duty Cycle Limit of 90%
Programmable UVLO
PWM Dimming Control
Programmable Over Voltage Protection
LED Open Protection
LED Short Circuit Protection
Diode Short Circuit Protection
Output Short Circuit Protection
LED Low-side Short to Ground
Detection
OV Pin Under Voltage Protection
Over Current Protection
Programmable Slope Compensation
Adjustable Soft-start
Adjustable Protection Delay
Fault Status Indication
Adjustable Operation Frequency from
100kHz to 1MHz
Over Temperature Protection
AP3041EV1 Specifications
Parameter
Value
Input Voltage
IC
12VDC
System
100VDC
LED Current
125mA
Number of LEDs
60 LEDs in series
(Vo=195V)
XYZ Dimension
80mm x 65mm x 18mm

AP3041EV1 User Guide
AP3041EV1 Page 2 of 7
May 2014
www.diodes.com
Figure 1: Top View
Figure 2: Bottom View
Connection Instructions
Power Supply Input: 100VDC (PVIN, GND)
IC Power Supply Input: 12VDC (AVIN, GND)
Enable Signal Input: 5VDC (EN, GND)
PWM Signal Input: (PWM, GND)
LED Outputs: LED+ (LED+), LED- (LED-)
PVIN
GND
LED+
LED-
PWM
PVIN
GND
LED+
LED-
EN
AVIN
EN
PWM
AVIN

AP3041EV1 User Guide
AP3041EV1 Page 3 of 7
May 2014
www.diodes.com
Evaluation Board Schematic
Figure 3: Evaluation Board Schematic

AP3041EV1 User Guide
AP3041EV1 Page 4 of 7
May 2014
www.diodes.com
Evaluation Board Layout
Figure 4: PCB Board Layout Top View
Figure 5: PCB Board Layout Bottom View
Quick Start Guide
1. By default, the evaluation board is preset at 125mA LED Current.
2. Connect the anode wire of external LED string to LED+ pin.
3. Connect the cathode wire of external LED string to LED- pin.
4. System Power Supply: Apply 100VDC to PVIN & GND pin.
5. Enable the IC: Apply 12VDC to AVIN & GND pin, and apply 5VDC to EN & GND pin to enable
AP3041.
6. Dimming Signal: Apply a synchronal PWM signal (Vpp=5V) to PVIN & GND pin to dim the
LEDs. When the dimming function is not applied, please apply 5 VDC to PVIN & GND pin.
7. LED string should light up after 4~6 steps.

AP3041EV1 User Guide
AP3041EV1 Page 5 of 7
May 2014
www.diodes.com
Bill of Material
#
Name
Quantity
Package
Description
1
U01
1
SO-16
AP3041
2
C01
1
RAD-0.2
250V/10uF
3
C13
1
RAD-0.2
400V/10uF
4
C03 C12
2
0805
1nF
5
C04 C15 C08
3
0805
0.1uF
6
C16
1
RAD-0.2
1000V/0.01uF
7
C07
1
1206
100pF
8
C10
1
0805
100pF
9
C09 C11
2
0805
10nF
10
C05
1
0805
1uF
11
C06
1
0805
NC
12
D01 D02
2
DO-41
MUR160
13
D03
1
LL-34
NC
14
L01
1
RAD-0.2
330uH
15
L02
1
CASE 59-04
WIRE JUMPER
16
Q01 Q02
2
DPAK
DMG4N60SK3
17
R06
1
0805
100
18
R24 R25
2
1206
10
19
R03 R04 R14
3
0805
10k
20
R11
1
0805
150K
21
R18 R19 R20
3
0805
1M
22
R16 R17
2
1206
1
23
R08
1
0805
1k
24
R21
1
0805
22K
25
R13
1
1206
22
26
R01 R02
2
0805
300k
27
R09
1
0805
39K
28
R26
1
1206
39R
29
R22
1
0805
47R
30
R27
1
1206
47R
31
R10
1
0805
511
32
R23
1
0805
51K
33
R05 R07
2
1206
51k
34
C02 C14 R12 R15
4
1206
NC

AP3041EV1 User Guide
AP3041EV1 Page 6 of 7
May 2014
www.diodes.com
Functional Waveforms
PWM Dimming Waveform (Dimming=200Hz; Duty=80%; ILED=120mA)
Functional Data Curves
0
20
40
60
80
100
120
140
0 10 20 30 40 50 60 70 80 90 100
PWM Duty(%)
LED Current(mA)
PWM=70Hz
PWM=200Hz
PWM=500Hz
PWM=1kHz
PWM=2kHz
PWM Dimming (Output Current vs. Duty Cycle)
VSS/COMP
VFB
VFAULT
ILED

AP3041EV1 User Guide
AP3041EV1 Page 7 of 7
May 2014
www.diodes.com
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