CS51031 データシートの表示（PDF） - ON Semiconductor

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CS51031

Fast P−Ch FET Buck Controller

ON Semiconductor 

CS51031

ELECTRICAL CHARACTERISTICS (Specifications apply for 4.5 ≤ VCC ≤ 16 V, 3.0 V ≤ VC ≤ 16 V;

Industrial Grade: −40°C < TA < 85°C; −40°C < TJ < 125°C: Commercial Grade: 0°C < TA < 70°C; 0°C < TJ < 125°C, unless otherwise specified.)

Characteristic

Test Conditions

Min

Typ

Max

Unit

Oscillator

Frequency

Charge Current

Discharge Current

Maximum Duty Cycle

Short Circuit Timer

Charge Current

Fast Discharge Current

Slow Discharge Current

Start Fault Inhibit Time

Valid Fault Time

GATE Inhibit Time

Fault Duty Cycle

VFB = 1.2 V

COSC = 470 pF

1.4 V < VCOSC < 2.0 V

2.7 V > VCOSC > 2.0 V

1 − (tOFF/tON)

VFB = 1.0 V; CS = 0.1 mF; VCOSC = 2.0 V

1.0 V < VCS < 2.0 V

2.55 V > VCS > 2.4 V

2.4 V > VCS > 1.5 V

0 V < VCS < 2.5 V

2.6 V > VCS > 2.4 V

2.4 V > VCS > 1.5 V

−

160

200

−

110

−

660

80.0

83.3

240

kHz

−

mA

−

mA

−

%

175

264

325

mA

40

66

80

mA

4.0

6.0

10

mA

0.70

0.85

1.40

ms

0.2

0.3

0.45

ms

9.0

15

23

ms

2.5

3.1

4.6

%

CS Comparator

Fault Enable CS Voltage

VFB = 1.0 V

−

−

2.5

−

V

Max CS Voltage

Fault Detect Voltage

Fault Inhibit Voltage

Hold Off Release Voltage

Regulator Threshold Voltage Clamp

VFB Comparators

Regulator Threshold Voltage

Fault Threshold Voltage

Threshold Line Regulation

Input Bias Current

Voltage Tracking

VFB = 1.5 V

VCS when GATE goes high

Minimum VCS

VFB = 0 V

VCS = 1.5 V

VCOSC = VCS = 2.0 V

TJ = 25°C (Note 3)

TJ = −40 to 125°C

TJ = 25°C (Note 3)

TJ = −40 to 125°C

4.5 V ≤ VCC ≤ 16 V

VFB = 0 V

(Regulator Threshold − Fault Threshold Voltage)

−

2.6

−

V

−

2.4

−

V

−

1.5

−

V

0.4

0.7

1.0

V

0.725

0.866

1.035

V

1.225

1.250

1.275

V

1.210

1.250

1.290

V

1.12

1.15

1.17

V

1.10

1.15

1.19

V

−

6.0

15

mV

−

1.0

4.0

mA

70

100

120

mV

Input Hysteresis Voltage

−

−

4.0

20

mV

Power Stage

GATE DC Low Saturation Voltage

GATE DC High Saturation Voltage

Rise Time

Fall Time

VCC Monitor

Turn−On Threshold

VCC = VC = 10 V; VFB = 1.2 V

VCOSC = 1.0 V; 200 mA Sink

VCOSC = 2.7 V; 200 mA Source; VC = VGATE

CGATE = 1.0 nF; 1.5 V < VGATE < 9.0 V

CGATE = 1.0 nF; 9.0 V > VGATE > 1.5 V

−

−

1.2

1.5

V

−

1.5

2.1

V

−

25

60

ns

−

25

60

ns

4.200

4.400

4.600

V

Turn−Off Threshold

−

4.085

4.300

4.515

V

Hysteresis

−

65

130

200

mV

Current Drain

ICC

4.5 V < VCC < 16 V, Gate switching

IC

3.0 V < VC < 16 V, Gate non−switching

Shutdown ICC

VCC = 4.0

3. Guaranteed by design, not 100% tested in production.

−

4.5

6.0

mA

−

2.7

4.0

mA

−

500

900

mA

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