m51996ap Renesas Electronics Corporation., m51996ap Datasheet - Page 9

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

M51996AP/AFP
REJ03D0836-0201 Rev.2.01 Nov 14, 2007
Page 9 of 35
5.2
4.8
4.4
4.0
2.2
2.0
1.8
50
45
40
35
30
25
20
15
10
50
40
30
20
10
Upper & Lower Limit Voltage of OSC vs.
5
0
0
−60 −40 −20
10
F/B Terminal Input Current I
0
Voltage Gain of Detection AMP vs.
2
R
R
0.4
Ambient Temperature Ta (°C)
ON
OFF
3
F/B Terminal Input Current
= 18 kΩ
0.6
= 20 kΩ
Ambient Temperature
10
Frequency f (Hz)
0.8
3
ON Duty vs.
Frequency
0
3
1.0
10
1.2
20
4
f
f
f
OSC
OSC
OSC
(f
R
R
1.4
OSC
f
f
f
ON
OFF
40
OSC
OSC
OSC
3
= 100 kHz
= 200 kHz
= 500 kHz
Ta = 25 °C
Ta = 85 °C
Ta = −30 °C
1.6
= 18 kΩ
= 200 kHz)
= 20 kΩ
10
= 500 kHz
= 200 kHz
= 100 kHz
60
1.8
5
F/B
80 100
3
2.0
(mA)
10
2.2
6
10
10
10
10
10
50
40
30
20
10
50
40
30
20
10
0
0
4
3
2
1
0
10
3
3
3
3
F/B Terminal Input Current I
F/B Terminal Input Current I
0
0
0
R
R
R
R
CF Terminal Capacitance (pF)
ON
OFF
0.4
0.4
ON
OFF
R
R
3
F/B Terminal Input Current
F/B Terminal Input Current
ON
OFF
CF Terminal Capacitance
= 22 kΩ
Oscillating Frequency vs.
= 36 kΩ
= 12 kΩ
0.6
0.6
= 6.2 kΩ
= 24 kΩ
10
= 20 kΩ
0.8
0.8
1
ON Duty vs.
ON Duty vs.
3
1.0
1.0
10
1.2
1.2
2
(f
R
R
(f
R
R
1.4
1.4
OSC
OSC
ON
OFF
ON
OFF
3
Ta = 25 °C
Ta = 85 °C
Ta = −30 °C
Ta = 25 °C
Ta = 85 °C
Ta = −30 °C
1.6
1.6
= 18 kΩ
= 18 kΩ
= 100 kHz)
= 20 kΩ
= 500 kHz)
= 20 kΩ
10
1.8
1.8
3
F/B
F/B
3
2.0
2.0
(mA)
(mA)
10
2.2
2.2
4