APW7061 查看數據表（PDF） - Anpec Electronics

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产品描述 (功能)

比赛名单

APW7061

Synchronous Buck PWM Controller

Anpec Electronics 

APW7061

Electrical Characteristics

Unless otherswise specified, these specifications apply over VCC= 12V, VBOOT = 12V and TA = 0 ~ 70oC.

Typlcal values are at TA = 25oC.

Symbol

Parameter

SUPPLY CURRENT

Test Conditions

APW7061

Unit

Min Typ Max

ICC VCC Nominal Supply

IBOOT BOOT Nominal Supply

POWER-ON-RESET

UGATE and LGATE Open

UGATE Open

2

mA

2

mA

Rising VCC Threshold

Falling VCC Threshold

OSCILLATOR

7.0 7.2 7.4 V

6.6 6.8 7.0 V

FOSC

Free Running Frequency

Ramp Upper Threshold

Ramp Lower Threshold

VCC=12V

220 250 280 kHz

3.0

V

1.3

V

∆VOSC Ramp Amplitude

REFERENCE

VREF Reference Voltage

Reference Voltage Tolerance

ERROR AMPLIFIER

DC Gain

UGATE Duty Range

1.7

VP-P

0.80

V

-1

+1 %

75

dB

0

85 %

FB Input Current

GATE DRIVERS

0.1 uA

IUGATE Upper Gate Source

RUGATE Upper Gate Sink

ILGATE Lower Gate Source

RLGATE Lower Gate Sink

TD Dead Time

PROTECTION

FB Under Voltage Level

OCSET source current

VBOOT=12V, VUGATE=6V

IUGATE=0.3A

VCC=12V, VLGATE =6V

ILGATE=0.3A

FB Falling

650 800

mA

4

8

Ω

550 700

mA

4

8

Ω

30

nS

50

%

250

uA

SOFT START and SHUTDOWN

TSS Internal Soft-Start Interval

Shutdown Threshold

COMP Falling

2

mS

0.4

V

Shutdown Hysteresis

50

mV

C opyright © ANPEC Electronics C orp.

4

Rev. A.7 - Nov., 2005

www.anpec.com.tw

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