AP3606 BCD Semiconductor, AP3606 Datasheet - Page 3

• Manufacturer Part Number: AP3606
• Description: 4/6 Channel Charge PUMP Current SINK FOR LED Driver
• Manufacturer: BCD Semiconductor

Functional Block Diagram
Dec. 2008 Rev. 1. 2
4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER
VIN
EN
VIN
EN
7
8
7
8
Figure 3. Functional Block Diagram of AP3606/AP3607
Shutdown
Dimming Controller
1MHz
1MHz
Shutdown
Dimming Controller
OSC
OSC
C1-
Delay
16 Steps Pulse
Delay
16 Steps Pulse
1
C1- C1+
1x /1.5x Charge Pump
1x /1.5x Charge Pump
1
C1+
4
4
Current Limitation
Soft Start
UVLO
AP3606
C2-
Current Limitation
Soft Start
AP3607
UVLO
C2- C2+
2
3
2
D1
C2+
14
6 Channels Current Sink
4 Channels Current Sink
D1
OTSD
D2 D3 D4 D5 D6
3
13
3
13
D2
OTSD
12
12
D3
BCD Semiconductor Manufacturing Limited
OVP
OVP
11
11
D4
Preliminary Datasheet
10
10
16
9
14
5
6
16
15
5
6
VOUT1
AGND
PGND
VOUT2
VOUT1
PGND
VOUT2
AGND
AP3606/AP3607