AP8802HSP-13 Diodes Inc, AP8802HSP-13 Datasheet - Page 8

• Manufacturer Part Number: AP8802HSP-13
• Description: IC LED DRIVER HIGH BRIGHT 8SOIC
• Manufacturer: Diodes Inc
• Type: HBLED Driverr

Specifications of AP8802HSP-13

• Constant Current: *
• Constant Voltage: *
• Topology: *
• Number Of Outputs: *
• Internal Driver: *
• Type - Primary: *
• Type - Secondary: *
• Frequency: *
• Voltage - Supply: *
• Voltage - Output: *
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width) Exposed Pad, 8-eSOIC. 8-HSOIC
• Operating Temperature: *
• Current - Output / Channel: *
• Internal Switch(s): Yes
• Efficiency: 92%
• Output Voltage: 60 V
• Output Current: 1 A
• Duty Cycle (max): 0.95 %
• Input Voltage: 8 V to 60 V
• Switching Frequency: 0.5 MHz
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 105 C
• Description/function: Step-down DC/DC converter
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AP8802HSP-13DITR

Applications Information
Capacitor Selection
The small size of ceramic capacitors makes them ideal for AP8802H applications. X5R and X7R types are
recommended because they retain their capacitance over wider voltage and temperature ranges than other types
such as Z5U. A 2.2μF input capacitor is sufficient for most intended applications of AP8802H.
A 4.7μF input capacitor is suggested for application with an input voltage equal or higher than 60V.
Diode Selection
Schottky diodes, e.g. B2100 or B1100, with their low forward voltage drop and fast reverse recovery, are the ideal
choice for AP8802H applications.
PWM Dimming
A Pulse Width Modulated (PWM) signal with a max resolution of 8bit, can be applied to the CTRL pin to change
the output current to a value above or below the nominal average value set by resistor RSET. To achieve this
resolution the PWM frequency has to be lower than 500Hz.
Thermal Considerations
The graph below in figure 8, gives details for power derating. This assumes the device to be mounted on a
25x25mm PCB with 1oz copper standing in still air.
Package Selection
The device comes with a wide selection of packages. The suggested package is able to provide a case
temperature below 70˚C (with an ambient temperature of 25˚C) for the combination of input voltage and load
requested.
AP8802H
Document number: DS32227 Rev. 1 - 2
2.4
2.2
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
2
1
0
0
(Continued)
Figure 8: AP8802H Derating Curves
25
Maximum Power Dissipation
A mbient temperature (°C)
www.diodes.com
50
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75
60V 1A LED Step-down Converter
100
125
AP8802H
© Diodes Incorporated
June 2010