Datasheet

4/16
Technical Note
Reference data
Fig.1 Output reference voltage vs.
Ambient temprature(All series)
Fig.2 Frequency vs. Ambient
temperature(All series)
Fig.3 Standby current(BD9781HFP)
Fig.5 Standby current(BD9001F) Fig.6 Circuit current(BD9781HFP)
Fig.8 Circuit current(BD9001F) Fig.9 ON resistance VIN=5V(BD9781HFP)
Fig.11 ON resistanceVIN=13.2V (BD9781HFP)
0.980
0.985
0.990
0.995
1.000
1.005
1.010
1.015
1.020
-25-50 0 25 50 75 100
AMBIENT TEMPERATURE : Ta[Ŋ]
REFERENCE VOLTAGE : VREF[V]
125
0
100
200
300
400
500
600
-25-50 0 25 50 75 100
AMBIENT TEMPERATURE : Ta[Ŋ]
OSCILLATING FREQUENCY : fosc[kHz]
125
910kΩ
91kΩ
390kΩ
39kΩ
0
1
2
3
4
5
6
7
8
9
10
50101520253040
INPUT VOLTAGE : V
IN[V]
STAND-BY CURRENT : ISTB[µA]
35
125Ŋ
VCC=12V
Istb=0.14µA
25Ŋ
125Ŋ
25Ŋ
–40Ŋ
-40Ŋ
Fig.7 Circuit current(BD9778F/HFP)
1
0
50101520253040
INPUT VOLTAGE : VIN[V]
CIRCUIT CURRENT : ICC[mA]
CIRCUIT CURRENT : I
CC[mA]
35
2
3
4
Dpmkrfcrmn* - 40Ŋ
25Ŋ
125
Ŋ
Dpmkrfcrmn* - 40Ŋ
25Ŋ
125Ŋ
1
0
50101520253040
INPUT VOLTAGE : VIN[V]
CIRCUIT CURRENT : ICC[mA]
STAND-BY CURRENT : I
STB[µA]
35
2
3
4
Fig.10 ON resistance VIN=7V (BD9781HFP)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0.50.0 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
OUTPUT CURRENT : IO[A]
FET ON RESISTANCE : RON[Ω]
Ta=25Ŋ
Ta= 125Ŋ
Ta=-40Ŋ
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0.50.0 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
OUTPUT CURRENT : IO[A]
FET ON RESISTANCE : RON[Ω]
Ta=25Ŋ
Ta= 125Ŋ
Ta=-40Ŋ
4.5
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0.50.0 1.0 1.5 2.0 2.5 3.0 3.5 4.0
OUTPUT CURRENT : IO[A]
FET ON RESISTANCE : RON[Ω]
Ta= 25 Ŋ
Ta=125Ŋ
Ta=-40Ŋ
Fig.4 Standby current(BD9778F/HFP)
5010152025304035
INPUT VOLTAGE : V
IN[V] INPUT VOLTAGE : VIN[V]
INPUT VOLTAGE : V
IN[V]
0
1
2
3
4
5
6
7
8
9
10
STAND-BY CURRENT : ISTB[µA]
1
25
Ŋ
25Ŋ
-4
0Ŋ
V
C
C
=12
V
Istb=0.14µ
A
60
6050403020100
10
20
30
40
50403020100
1
2
3
4
Dpmkrfcrmn* 125Ŋ
- 40Ŋ
25Ŋ
Fig.12 ON resistance VIN=5V (BD9778F/HFP)
OUTPUT CURRENT : IO[A]
0.50.0 1.0 1.5 2.0 2.5
FET ON RESISTANCE : RON[Ω]
Ta=-40Ŋ
Ta=25Ŋ
Ta= 125Ŋ
2010.02 - Rev. B
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BD9778F, BD9778HFP, BD9001F, BD9781HFP