AP8800AWT-7 Diodes Inc, AP8800AWT-7 Datasheet - Page 2

• Manufacturer Part Number: AP8800AWT-7
• Description: LED Drivers 28V 1-W LED Driver DC/DC Converter
• Manufacturer: Diodes Inc
• Series: -r

Specifications of AP8800AWT-7

• Constant Current: Yes
• Constant Voltage: -
• Topology: PWM, Step-Down (Buck)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: General Purpose
• Type - Secondary: -
• Frequency: 600kHz
• Voltage - Supply: 8 V ~ 28 V
• Voltage - Output: -
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5 Thin, TSOT-23-5
• Operating Temperature: -40°C ~ 105°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Pin Descriptions
Absolute Maximum Ratings
Caution:
Recommended Operating Conditions
Notes:
AP8800A
Document number: DS35100 Rev. 2 - 2
Pin Name
CTRL
GND
SET
Symbol
Symbol
V
SW
V
V
V
T
D
V
CTRLDC
V
IN
T
CTRLL
V
I
V
I
f
LEAD
CTRL
T
T
PWM
SW
SW
SW
SET
SW
ST
IN
IN
A
J
The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be
exceeded under any condition.
Semiconductor devices are ESD sensitive and may be damaged by exposure to ESD events. Suitable ESD precautions should be taken when
handling and transporting these devices.
2. Refer to figure 4 for the device derating curve.
Pin Number
Continuous V
Set voltage relative to V
SW voltage relative to GND
CTRL pin input voltage
Switch current
Junction Temperature
Lead Temperature Soldering
Storage Temperature Range
Operating Input Voltage relative to GND
Voltage range for 24% to 200% DC dimming relative to GND
Voltage Low for PWM dimming relative to GND
Continuous average switch current (Note 2)
Duty cycle range applied to CTRL (f < 500Hz)
Switching frequency
Ambient Temperature Range
1
2
3
4
5
Switch Pin. Connect inductor/freewheeling diode here, minimizing track length at this pin to
reduce EMI.
GND Pin
Dimming and On/Off Control Input.
Set Nominal Output Current Pin.
Configures the output current of the device.
Input Supply Pin. Must be locally decoupled to GND with > 2.2µF X7R ceramic capacitor – see
applications section for more information.
IN
• Input voltage of 0.2V or lower forces the device into low current standby mode and shuts
• The input impedance is about 50kΩ, and if the pin is left open V
• Drive with DC voltage (0.3V < V
pin voltage relative to GND
off the output. An open-drain/collector PWM signal allows the output current to be adjusted
below the level set by the resistor connected to SET input pin.
I
OUTnom
IN
Parameter
Parameter
www.diodes.com
COST EFFECTIVE 28V BUCK 1-W LED DRIVER
2 of 12
CTRL
< 2.5V) to adjust output current from 24% to 200% of
Descriptions
0.01
V
Min
8.0
0.3
-40
IN
-55 to +150
-5 ~ V
CTRL
Ratings
-0.3~30
-0.3~30
-0.3 ~ 5
0.45
105
300
= V
IN
AP8800A
+0.3
REF
Max
370
600
105
2.5
0.2
28
1
.
© Diodes Incorporated
January 2011
Unit
Unit
kHz
mA
°C
°C
°C
°C
V
V
V
V
A
V
V
V