CS51031GD8 datasheet(3/12 Pages) ONSEMI

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CS51031

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ELECTRICAL CHARACTERISTICS (continued) (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

Unit

Max

Typ

Min

Test Conditions

VFB Comparators

VCOSC = VCS = 2.0 V

Regulator Threshold Voltage

TJ = 25°C (Note 3)

TJ = –40 to 125°C

1.225

1.210

1.250

1.275

1.290

Fault Threshold Voltage

TJ = 25°C (Note 3)

TJ = –40 to 125°C

1.12

1.10

1.15

1.17

1.19

Threshold Line Regulation

4.5 V

≤ VCC ≤ 16 V

–

6.0

Input Bias Current

VFB = 0 V

–

1.0

4.0

µA

Voltage Tracking

(Regulator Threshold – Fault Threshold Voltage)

100

120

Input Hysteresis Voltage

–

4.0

Power Stage

VCC = VC = 10 V; VFB = 1.2 V

GATE DC Low Saturation Voltage

VCOSC = 1.0 V; 200 mA Sink

–

1.2

1.5

GATE DC High Saturation Voltage

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

–

1.5

2.1

Rise Time

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

–

Fall Time

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

–

VCC Monitor

Turn On Threshold

–

4.200

4.400

4.600

Turn Off Threshold

–

4.085

4.300

4.515

Hysteresis

–

130

200

Current Drain

ICC

4.5 V < VCC < 16 V, Gate switching

–

4.5

6.0

3.0 V < VC < 16 V, Gate non–switching

–

2.7

4.0

Shutdown ICC

VCC = 4.0

–

500

900

µA

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

PACKAGE LEAD DESCRIPTION

PACKAGE PIN

NUMBER

SO–8

PIN SYMBOL

FUNCTION

VGATE

Driver pin to gate of external PFET.

PGND

Output power stage ground connection.

COSC

Oscillator frequency programming capacitor.

GND

Logic ground.

VFB

Feedback voltage input.

VCC

Logic supply voltage.

Soft start and fault timing capacitor.

Driver supply voltage.

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