CS51031GD8 datasheet(2/12 Pages) ONSEMI

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CS51031

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MAXIMUM RATINGS*

Rating

Value

Unit

Power Supply Voltage, VCC

Driver Supply Voltage, VC

Driver Output Voltage, VGATE

COSC, CS, VFB (Logic Pins)

6.0

Peak Output Current

1.0

Steady State Output Current

200

Operating Junction Temperature, TJ

150

°C

Operating Temperature Range, TA

–40 to 85

°C

Storage Temperature Range, TS

–65 to 150

°C

ESD (Human Body Model)

2.0

Lead Temperature Soldering:

Wave Solder: (through hole styles only) (Note 1)

Reflow (SMD styles only) (Note 2)

260 peak

230 peak

°C

1. 10 sec. maximum.

2. 60 sec. max above 183

°C.

*The maximum package power dissipation must be observed.

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

VFB = 1.2 V

Frequency

COSC = 470 pF

160

200

240

kHz

Charge Current

1.4 V < VCOSC < 2.0 V

–

110

–

µA

Discharge Current

2.7 V > VCOSC > 2.0 V

–

660

–

µA

Maximum Duty Cycle

1 – (tOFF/tON)

80.0

83.3

–

Short Circuit Timer

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

Charge Current

1.0 V < VCS < 2.0 V

175

264

325

µA

Fast Discharge Current

2.55 V > VCS > 2.4 V

µA

Slow Discharge Current

2.4 V > VCS > 1.5 V

4.0

6.0

µA

Start Fault Inhibit Time

0 V < VCS < 2.5 V

0.70

0.85

1.40

Valid Fault Time

2.6 V > VCS > 2.4 V

0.2

0.3

0.45

GATE Inhibit Time

2.4 V > VCS > 1.5 V

9.0

Fault Duty Cycle

–

2.5

3.1

4.6

CS Comparator

VFB = 1.0 V

Fault Enable CS Voltage

–

2.5

–

Max. CS Voltage

VFB = 1.5 V

–

2.6

–

Fault Detect Voltage

VCS when GATE goes high

–

2.4

–

Fault Inhibit Voltage

Minimum VCS

–

1.5

–

Hold Off Release Voltage

VFB = 0 V

0.4

0.7

1.0

Regulator Threshold Voltage Clamp

VCS = 1.5 V

0.725

0.866

1.035

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