APW8722C datasheet(4/23 Pages) ANPEC

4 / 23 page

Rev. A.3 - Jun., 2013

www.anpec.com.tw

APW8722/A/B/C/D

Electrical Characteristics

APW8722

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

INPUT SUPPLY VOLTAGE AND CURRENT

VCC Supply Current (Shutdown Mode)

UGATE and LGATE open;

COMP=GND

550

µA

IVCC

VCC Supply Current

UGATE and LGATE open

2.5

POWER-ON-RESET(POR)

Rising VCC POR Threshold

3.8

4.1

4.4

VCC POR Hysteresis

0.3

0.5

0.6

OSCILLATOR

For APW8722/B

270

300

330

For APW8722C

180

200

220

FOSC

Oscillator Frequency

For APW8722A/D

540

600

660

kHz

∆V

OSC

Oscillator Sawtooth Amplitude

(Note 4)

(1.2V~2.7V typical)

1.5

DMAX

Maximum Duty Cycle

REFERENCE

APW8722/A/D Reference Voltage

TA = -40 ~ 85°C

0.596

0.6

0.604

VREF

APW8722B/C Reference Voltage

TA = -40 ~ 85°C

0.795

0.8

0.805

ERROR AMPLIFIER

Open-Loop GAIN

(Note 4)

RL = 10k

Ω, C

L = 10pF

Open-Loop Bandwidth

(Note 4)

RL = 10k

Ω, C

L = 10pF

MHz

FB Input Leakage Current

VFB = 0.6V

0.1

µA

GATE DRIVERS

High-side Gate Driver Source Current

VBOOT= 12V, VUGATE-PHASE = 6V

1.0

High-side Gate Driver Sink Current

VBOOT= 12V, VUGATE-PHASE = 6V

1.1

Low-side Gate Driver Source Current

VVCC = 12V, VLGATE-GND = 6V

1.8

Low-side Gate Driver Sink Current

VVCC = 12V, VLGATE-GND = 6V

2.0

Dead-time (Note 4)

PROTECTIONS

VFB_UV

FB Under-Voltage Protection Trip Point

Percentage of VREF

Under-Voltage Debounce Interval

µs

Under-Voltage Protection Enable

Delay

1.5

VFB_OV

FB Over-Voltage Protection Rising

Threshold

VFB rising

120

125

130

FB Over-Voltage Protection Falling

Threshold

VFB falling

100

105

110

Over-Voltage Debounce Interval

µs

VOCP_MAX

Built-in Maximum OCP Voltage

1200

IOCSET

OCSET Current Source

µA

Refer to the typical application circuit. These specifications apply over V

VCC = 12V, TA = -40°C to 85°C, unless otherwise

noted. Typical values are at T

A = 25°C.

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