m51996ap Renesas Electronics Corporation., m51996ap Datasheet - Page 10

• Manufacturer Part Number: m51996ap
• Description: Switching Regulator Control
• Manufacturer: Renesas Electronics Corporation.

M51996AP/AFP
REJ03D0836-0201 Rev.2.01 Nov 14, 2007
Page 10 of 35
100
100
700
600
500
400
300
200
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
−60 −40 −20
−60 −40 −20
10
0
R
ON
Ambient Temperature Ta (°C)
Ambient Temperature Ta (°C)
R
ON
R
= 22 kΩ, R
ON
Oscillator Frequency vs.
= 18 kΩ, R
Ambient Temperature
Ambient Temperature
= 15 kΩ, R
3
ON Duty vs. R
ON Duty vs.
5 7
R
0
R
R
R
OFF
0
ON
ON
ON
OFF
OFF
= 22 kΩ
OFF
10
= 36 kΩ, R
= 22 kΩ, R
= 24 kΩ, R
20
20
= 24 kΩ
(kΩ)
1
= 27 kΩ
(f
OSC
40
40
R
R
C
OFF
ON
OFF
F
= 200 kHz)
OFF
OFF
OFF
R
60
= 47 pF
60 80 100
3
ON
= 24 kΩ
51 kΩ
36 kΩ
24 kΩ
22 kΩ
18 kΩ
15 kΩ
10 kΩ
= 20 kΩ
= 6.2 kΩ
= 12 kΩ
= 20 kΩ
= 75 kΩ
5 7
80 100
10
2
120
110
100
100
100
90
80
70
60
50
40
30
20
10
90
80
90
80
70
60
50
40
30
20
10
0
0
−60 −40 −20
−60 −40 −20
−60 −40 −20
R
R
ON
ON
Ambient Temperature Ta (°C)
Ambient Temperature Ta (°C)
R
Ambient Temperature Ta (°C)
R
ON
ON
R
R
= 22 kΩ, R
= 22 kΩ, R
ON
ON
Oscillator Frequency vs.
= 18 kΩ, R
= 18 kΩ, R
Ambient Temperature
Ambient Temperature
Ambient Temperature
= 15 kΩ, R
= 15 kΩ, R
ON Duty vs.
ON Duty vs.
0
0
0
R
R
R
OFF
R
R
R
OFF
ON
ON
ON
ON
ON
ON
OFF
OFF
= 22 kΩ
OFF
= 22 kΩ
OFF
= 36 kΩ, R
= 22 kΩ, R
= 24 kΩ, R
= 36 kΩ, R
= 22 kΩ, R
= 24 kΩ, R
20
20
20
= 24 kΩ
= 24 kΩ
= 27 kΩ
= 27 kΩ
(f
(f
40
40
OSC
40
OSC
R
R
C
ON
OFF
F
= 100 kHz)
OFF
OFF
OFF
= 500 kHz)
OFF
OFF
OFF
= 330 pF
60
60
60
= 24 kΩ
= 20 kΩ
= 6.2 kΩ
= 12 kΩ
= 20 kΩ
= 6.2 kΩ
= 12 kΩ
= 20 kΩ
80 100
80 100
80 100