M51996AP Datasheet, PDF (7/36 Pages) Mitsubishi Electric Semiconductor – SWITCHING REGULATOR CONTROL

M51996AP/AFP
Main Characteristics
1800
Thermal Derating
(Maximum Rating)
1500
1200
900
600
300
0
0 25 50 75⁸⁵ 100 125 150
Ambient Temperature Ta (°C)
SOFT Terminal Input Voltage vs.
Expansion Rate of Period
5.0
(f_OSC = 100 kHz)
(1) R_ON = 15 kΩ, R_OFF = 27 kΩ
4.0
(2) R_ON = 18 kΩ, R_OFF = 24 kΩ
(3) R_ON = 22 kΩ, R_OFF = 22 kΩ
(4) R_ON = 24 kΩ, R_OFF = 20 kΩ
3.0
(5) R_ON = 22 kΩ, R_OFF = 12 kΩ
(6) R_ON = 36 kΩ, R_OFF = 6.2 kΩ
2.0
(2)
1.0
(1) (3) (4) (5) (6)
0
0 2 4 6 8 10 12 14 16 18 20
Expansion Rate of Period (Times)
−100
−90
−80
SOFT Terminal Input Current vs.
Input Voltage
Ta = 25 °C
Ta = 85 °C
Ta = −30 °C
−70
−60
−50
−40
−30
−20
−10
0
0 1 2 3 4 5 6 7 8 9 10
SOFT Terminal Input Voltage V_SOFT (V)
REJ03D0836-0201 Rev.2.01 Nov 14, 2007
Page 7 of 35
Circuit Current vs. Supply Voltage
(Normal Operation)
16 m
R_ON = 18 kΩ f_OSC = 500 kHz
14 m ^ROFF ^{= 20 kΩ}
12 m
10 m
f_OSC = 100 kHz
150 µ
100 µ
50 µ
0
0
Ta = 25 °C
Ta = 85 °C
Ta = −30 °C
10
20
30
40
Supply Voltage V_CC (V)
SOFT Terminal Input Voltage vs.
Expansion Rate of Period
5.0
(f_OSC = 500 kHz)
(1) R_ON = 15 kΩ, R_OFF = 27 kΩ
4.0
(2) R_ON = 18 kΩ, R_OFF = 24 kΩ
(3) R_ON = 22 kΩ, R_OFF = 22 kΩ
(4) R_ON = 24 kΩ, R_OFF = 20 kΩ
3.0
(5) R_ON = 22 kΩ, R_OFF = 12 kΩ
(6) R_ON = 36 kΩ, R_OFF = 6.2 kΩ
2.0
(2) (3) (4)
1.0
(1)
(5) (6)
0
0 2 4 6 8 10 12 14 16 18 20
Expansion Rate of Period (Times)
CLM+ Terminal Threshold Voltage vs.
Ambient Temperature
210
205
200
195
190
−60 −40 −20 0 20 40 60 80 100
Ambient Temperature Ta (°C)