Technical Note
2/8
BD6290EFV
www.rohm.com
2012.02 - Rev.
© 2012 ROHM Co., Ltd. All rights reserved.
●Absolute maximum ratings(Ta=25℃)
Item Symbol Limit Unit
Supply voltage V
M1,2
-0.2～+36.0 V
Power dissipation Pd
1.10
※
1
W
4.00
※
2
Input voltage for control pin V
IN
-0.2～+7.0 V
RNF maximum voltage V
RNF
0.5 V
Maximum output current I
OUT
0.8
※
3
A/phase
Operating temperature range T
opr
-25～+85 ℃
Storage temperature range T
stg
-55～+150 ℃
Junction temperature T
jmax
150 ℃
※
1
70mm×70mm×1.6mm glass epoxy board. Derating in done at 8.8mW/℃ for operating above Ta=25℃.
※
2
4-layer recommended board. Derating in done at 32.0mW/℃ for operating above Ta=25℃.
※
3
Do not, however exceed Pd, ASO and T
jmax
=150℃.
●Operating conditions(Ta= -25～+85℃)
Item Symbol Limit Unit
Supply voltage V
M1,2
19～28 V
Output current (DC) I
OUT
0.5
※
4
A/phase
※4 Do not however exceed Pd, ASO.
●Electrical characteristics
(Unless otherwise specified Ta=25℃, V
M
=24V)
Item Symbol
Limit
Unit Condition
Min. Typ. Max.
Whole
Circuit current at standby I
VMST
- 0.6 1.5 mA PS=L
Circuit current I
VM
- 3.0 7.0 mA PS=H, VREF=2V
Control input (PHA1, I01, I11, PHA2, I02, I12, P.S.)
H level input voltage V
PSH
2.0 - 5.5 V
L level input voltage V
PSL
- - 0.8 V
H level input current I
PSH
25 50 80 μA Control input voltage=5V
L level input current I
PSL
- 0 10 μA Control input voltage=0V
Output (OUT1A, OUT1B, OUT2A, OUT2B)
Output ON resistance R
ON
- 2.80 3.60 Ω
I
OUT
=±0.3A
Sum of upper and lower
Output leak current I
LEAK
- - 10 μA
Current control
RNFX input current I
RNFX
-40 -20 - μA RNFX=0V
VREF input current I
VREF
-2.0 -0.1 - μA VREF=0V
VREF input voltage range V
REF
0 - 2 V
Comparator threshold
100%
V
CTHLL
0.340 0.400 0.460 V VREF=2V,I0X=L,I1X=L
Comparator threshold
67%
V
CTHHL
0.227 0.267 0.307 V VREF=2V,I0X=H,I1X=L
Comparator threshold
33％
V
CTHLH
0.113 0.133 0.153 V VREF=2V,I0X=L,I1X=H
Minimum on time t
ONMIN
0.3 0.5 1.0 μs R=39kΩ, C=1000pF
