bd9876efj ROHM Co. Ltd., bd9876efj Datasheet - Page 6

• Manufacturer Part Number: bd9876efj
• Description: Flexible Step-down Switching Regulator With Built-in Power Mosfet
• Manufacturer: ROHM Co. Ltd.

●Reference Data (Unless otherwise specified, Ta=25℃, VCC=24V, Vo=5V, EN=3V)
www.rohm.com
BD9876EFJ
© 2011 ROHM Co., Ltd. All rights reserved.
1.010
1.008
1.006
1.004
1.002
1.000
0.998
0.996
0.994
0.992
0.990
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
1
0
Fig.11. FB Threshold Voltage
Temperature Characteristics
Temperature Characteristics
-60 -40 -20
Temperature Characteristics
8
7
6
5
4
3
2
1
0
-60 -40 -20 0
-60 -40 -20 0
Fig.8. UVLO Threshold
Fig.5. Standby Current
VCC=12V
detect voltage
0
Temp[℃ ]
Temp[℃ ]
Temp[℃ ]
20
VCC=12V
20 40 60 80 100 120
20 40 60 80 100 120
VCC=24V
VCC=36V
VCC=24V
40
VCC=36V
60
reset voltage
VCC=42V
VCC=42V
80 100 120
Power supply Voltage Characteristics
1.5
0.5
350
340
330
320
310
300
290
280
270
260
250
1.010
1.008
1.006
1.004
1.002
1.000
0.998
0.996
0.994
0.992
0.990
2
1
0
Power supply Characteristics
0
-60 -40 -20
Temperature Characteristics
Fig.9. Oscillation Frequency
0
Fig.6. Circuit Current
5
Fig.12. FB Threshold
Temp=105℃
5
10
10 15 20 25 30 35 40 45
15
Temp=105℃
0
VCC[V]
6/16
VCC[V]
Temp=25℃
Temp[ ℃ ]
20
20
Temp=25℃
25
40
Temp=‐40℃
Temp=‐40℃
30
60
35
80 100 120
40
45
1.5
0.5
2
1
0
100
‐10
‐20
‐30
‐40
‐50
‐60
-60 -40 -20
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
Temperature Characteristics
-60 -40 -20
0
Fig.13. FB Voltage - IVC
Temperature Characteristics
Current Characteristics
Temp=105℃
Fig.7. Circuit Current
Temp=25℃
Temp=‐40℃
0.5
Fig.10. Max Duty
VCC=12V
0
Temp[℃ ]
VFB[V]
0
Temp[℃ ]
20
VCC=24V
Technical Note
2011.07 - Rev.B
20
1
40
VCC=36V
40
60
60
1.5
VCC=42V
80 100 120
80 100 120
2