BD9285F ROHM [Rohm], BD9285F Datasheet - Page 3

• Manufacturer Part Number: BD9285F
• Description: Boost 1channel white LED driver For large LCDs
• Manufacturer: ROHM [Rohm]

●1.1 Electrical character (Unless otherwise specified Ta=25℃，VCC=12V)
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
BD9285F
【 【 【 【 Total current consumption】 】 】 】
Circuit current
Standby current
【 【 【 【 UVLO block】 】 】 】
Operation voltage（VCC）
Hysteresis Voltage（VCC）
UVLO release voltage
UVLO hysteresis voltage
UVLO pin leak current
【 【 【 【 DC/DC block】 】 】 】
ISENSE threshold voltage 1
ISENSE threshold voltage 2
ISENSE threshold voltage 3
Oscillation frequency
GATE
output
GATE pin ON resistance
(as source)
GATE pin ON resistance
(as sink)
RT pin voltage
SS pin source current
SS pin Low output voltage
Soft start ended voltage
FB source current
FB sink current
OCP detect voltage
【 【 【 【 DC/DC protection block】 】 】 】
OVP detect voltage
OVP detect hysteresis
SCP detect voltage
SCP detect hysteresis
OVP pin leak current
Parameter
pin
MAX
DUTY
VUVLO_VCC
VUHYS_VCC
NMAX_DUTY
VOVP_HYS
VSCP_HYS
VSS_END
UVLO_LK
OVP_LK
Symbol
RONSO
VUVLO
VUHYS
VLED1
VLED2
VLED3
RONSI
VSS_L
ISSSO
IFBSO
VOVP
VSCP
IFBSI
FCT
VRT
VCS
IST
Icc
142.5
-4.20
Min.
2.88
1.47
3.33
-140
2.88
0.14
150
160
450
6.5
3.0
1.2
1.0
2.7
90
60
50
25
－
－
-2
-2
-2
-
Limit
Typ.
3.00
1.50
3.50
0.20
-100
3.00
0.20
300
200
150
-3.0
100
500
100
1.2
7.5
6.0
2.5
1.5
3.0
95
50
0
0
0
-
3/36
157. 5
Max.
-2.14
3.12
1.53
3.67
12.0
0.50
3.12
0.26
600
240
140
550
150
1.8
8.5
5.0
2.0
3.3
-60
+2
99
75
3
2
2
Unit
KHz
μA
μA
μA
μA
μA
mV
mV
mV
mV
mV
μA
mA
Ω
Ω
%
%
V
V
V
V
V
V
V
V
V
VSTB=3V, PWM1=PWM2=0V
VSTB=0V
VCC=SWEEP UP
VCC=SWEEP DOWN
VUVLO=SWEEP UP
VUVLO=SWEEP DOWN
VUVLO=4V
VADIM=1.5V
VADIM=5.0V (as mask analog dimming)
VADIM=0.7V
RT=100kohm
RT=100kohm
ION=-10mA
ION=10mA
RT=100kohm
VSS=2V
VSTB=0V, Ioss=50uA
SS=SWEEP UP
VISENSE=0.2V,
VFB=1.0V
VISENSE=2.0V,
VFB=1.0V
CS=SWEEP UP
VOVP SWEEP UP
VOVP SWEEP DOWN
VOVP SWEEP DOWN
VOVP=4V
TSZ02201-0F1F0C100030-1-2
Condition
11.Jul.2012 Rev.001
VADIM=1.0V,
VADIM=1.0V,
Datasheet