Diodes AP3606/AP3607 Manuel d'utilisateur

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Data Sheet
4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607
Jan. 2013 Rev. 1. 5 BCD Semiconductor Manufacturing Limited
1
General Description
The AP3606 and AP3607 are step-up DC-DC
converters based on 1x/1.5x charge pump and low
dropout current sink, which helps them maintain the
highest efficiency. The AP3606 is specially designed
to drive up to 4 WLEDs in backlight display while
the AP3607 is designed for 6 WLEDs.
These devices provide up to 20mA current for each
WLED. There are totally 16 steps of current control,
which is achieved through a digital pulse dimming
function on EN pin. Additionally, 1MHz high
switching frequency enables the use of small external
capacitors. Internal soft-start circuitry prevents
excessive inrush current during start-up and mode
transition.
The supply voltage ranges of AP3606 and AP3607
are from 2.7V to 5.5V which make them ideally suit
for applications powered by Li-ion battery.
These ICs are available in the tiny package of
QFN-3×3-16.
Features
Regulated Output Current with ±3% Matching
Drives up to 4 WLEDs at 20mA Each (AP3606)
Drives up to 6 WLEDs at 20mA Each (AP3607)
16 Steps Brightness Control Using Pulse Signal
Dimming
Wide Operating Voltage Range: 2.7V to 5.5V
High Operating Frequency: 1MHz
Auto 1x/1.5x Charge Pump Mode Selection
• Built-in Soft-start
• Output Over Voltage Protection
• Built-in UVLO
• Built-in OTSD
Operating Temperature Range: -40°C to 85°C
Applications
Mobile Phone
• PDA
• MP3/4
Figure 1. Package Type of AP3606/AP3607
QFN-3×3-16
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Résumé du contenu

Page 1

Data Sheet 4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607

Page 2 - Pin 1 Mark

Data Sheet 4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607

Page 3 - 6 Channels Current Sink

Data Sheet 4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607

Page 4

Data Sheet 4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607

Page 5

Data Sheet 4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607

Page 6

Data Sheet 4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607

Page 7

Data Sheet 4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607

Page 8

Data Sheet 4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607

Page 9

Data Sheet 4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607

Page 10

IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the

Page 11

Data Sheet 4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607

Page 12

Data Sheet 4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607

Page 13

Data Sheet 4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607

Page 14 - SHDNmax

Data Sheet 4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607

Page 15

Data Sheet 4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607

Page 16 - Pulse Input

Data Sheet 4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607

Page 17 - Mechanical Dimensions

Data Sheet 4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607

Page 18

Data Sheet 4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607

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