BD9415FS
1.3 Pin Configuration
32
31
30
29
1
2
3
4
5
6
7
8
AGND
SSFB
RT
VCC
FAILB
UVLO
REG90
DUTYP
PWM4 28
PWM3 27
STB
N
PWM2
PWM1
LSP
26
25
24
23
22
21
PGND
CS
9
DUTYON
OVP
VREF
10
11
12
13
14
15
16
G4
LED4
S4
S1
LED1
20
19
18
17
G1
S2
G3
LED2
G2
LED3
S3
Figure 3. Pin Configuration
1.4 Pin Descriptions
Pin
Pin
No.
Pin
Name
Pin Name
No.
Function
Power supply terminal
Function
1
2
3
4
5
6
7
VCC
FAILB
UVLO
REG90
STB
32
31
30
29
28
27
26
AGND
SSFB
RT
Analog GND
Error detection output pin (open drain)
Under voltage lockout detection pin
9.0V output voltage pin
IC ON/OFF pin
Soft start pin & Error amplifier pin
DC/DC switching frequency setting pin
DUTYP Over voltage protection setting pin
PWM4
PWM3
PWM2
LED4 External PWM dimming signal input pin
LED3 External PWM dimming signal input pin
LED2 External PWM dimming signal input pin
N
DC/DC switching output pin
Power GND
PGND
DC/DC output current detect pin,
OCP input pin
8
CS
25
PWM1
LED1 External PWM dimming signal input pin
9
DUTYON Over duty protection ON/OFF pin
24
23
22
21
20
19
18
17
LSP
VREF
G4
LED short voltage setting pin
Analog dimming signal input pin
CH4 dimming signal output pin
CH4 LED output pin
10
11
12
13
14
15
16
OVP
S1
Over voltage protection detection pin
CH1 current detection input pin
CH1 LED output pin
LED1
G1
LED4
S4
CH1 dimming signal output pin
CH2 current detection input pin
CH2 LED output pin
CH4 current detection input pin
CH3 dimming signal output pin
CH3 LED output pin
S2
G3
LED2
G2
LED3
S3
CH2 dimming signal output pin
CH3 current detection input pin
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TSZ02201-0F2F0C100140-1-2
23.May.2016 Rev.001
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