BD9415FS
1.6 Absolute Maximum Ratings (Ta=25°C)
Rating
-0.3 to +36
60
Unit
V
Parameter
Power Supply Voltage
LED1-4
Symbol
VCC
LED1, LED2, LED3, LED4
FAILB, STB, OVP,
V
FAILB, STB, OVP,
PWM1-4, UVLO, VREF, DUTYON
PWM1, PWM2, PWM3, PWM4,
UVLO, VREF, DUTYON
N, REG90, G1, G2, G3, G4
S1, S2, S3, S4, DUTYP, RT,
SSFB, CS, LSP
20
V
N, REG90, G1-4
13
7
V
V
S1-4, DUTYP, RT, SSFB, CS, LSP
Power Dissipation
Pd
Topr
Tjmax
Tstg
0.95 *1
-40 to +105
150
W
°C
°C
°C
Operating Temperature Range
Junction Temperature
Storage Temperature
-55 to +150
(*1) Derate by 7.6mW/°C when operating above Ta=25°C.. (Mounted on 1-layer 70mm x 70mm x 1.6mm board)
1.7 Recommended Operating Conditions (Ta=25°C)
Rating
Unit
Parameter
Power Supply Voltage
DC/DC Oscillating Frequency
VREF Input Voltage
Symbol
VCC
11.5 to 35.0
100 to 1000(*1)
0.2 to 2.5
V
kHz
V
Fsw
VREF
VLSP
FPWM
LSP Input Voltage
0.8 to 3.0
V
PWM Input Frequency
90 to 2000
Hz
The operating ranges above are acquired by evaluating the IC separately. Please take care when using the IC in
applications.
(*1) When driving external FET as DC/DC, be careful about the input capacity of the FET being used.
1.8 Electrical Characteristics 1/2 (Unless otherwise specified, VCC=24V, Ta=25°C)
Parameter
Symbol
Min
Typ
Max
Unit
Condition
【Total Current Consumption】
VSTB=3.0V, LED1-4=2V,
RT=30kΩ
VSTB=0V
Circuit Current
ICC
-
-
6.2
14
12.4
25
mA
Standby Current
IST
μA
【Switching Block】
N Pin Source ON Resistance
N Pin Sink ON Resistance
【REG90 Block】
RONH
RONL
-
-
2.5
3.0
3.75
4.5
Ω
Ω
ION=-10mA
ION=10mA
REG90 Output Voltage
REG90 Available Current
REG90
IREG90
8.91
20
9.0
-
9.09
-
V
IO=0mA
mA
VREG=SWEEP DOWN,
VSTB=0V
REG90_UVLO Detect Voltage
REG90_TH
4.7
5.4
6.1
V
V
【Over Current Limit Protection (OCP) Block】
OCP Detect Voltage
VOCP
0.405
0.450
0.495
VCS=SWEEP UP
【Error Amplifier Block】
Error Amplifier Base Voltage
SSFB Source Current
(Soft Start)
VERR
0.7
-13
0.8
-10
0.9
-7
V
VREF=1.5V
VSSFB=2V
ISSFBSO_S
μA
SSFB Sink Current
SSFB source Current
【CT Oscillator Block】
Oscillation Frequency
MAX DUTY
ISSFBSINK
80
100
120
-85
μA
LED=2.0V、VSSFB=1.0V
LED=0V、VSSFB=1.0V
ISSFBSOUR
-115
-100
µA
FCT
440
91
500
95
560
99
kHz
%
RRT=30kΩ
DUTY_MAX
【Short Circuit protection (SCP) detect Block】
SCP Detect Voltage
VSCP
0.05
0.20
0.35
V
VOVP=SWEEP DOWN
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TSZ02201-0F2F0C100140-1-2
23.May.2016 Rev.001
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