Diodes AP3583/A User Manual download pdf (Page 5)

Data Sheet

Single Phase Synchronous Buck PWM Controller With Reference Input AP3583/A

Dec. 2011 Rev. 1. 1 BCD Semiconductor Manufacturing Limited

Electrical Characteristics

=12V, T

=25°C, unless otherwise specified.

Parameter Symbol Conditions Min Typ Max Unit

SUPPLY INPUT

Supply Voltage V

4.5 13.2 V

Supply Current I

UGATE1and1LGATE

Pin1Open;

=12V,1Switching

3 mA

Quiescent Supply Current I

CC_Q

REF

+0.1V,

No Switching

2 mA

Power Input Voltage V

3.0 13.2 V

POWER ON RESET

Rising Threshold V

POR

Rising 4.0 4.2 4.4 V

Threshold Hysteresis V

POR_HYS

300 mV

OSCILLATOR

AP3583 180 200 220

Oscillator Frequency f

OSC

AP3583A 270 300 330

kHz

Ramp Amplitude ∆V

OSC

=12V 1.0 V

PWM CONTROLLER GATE DRIVERS

Upper Gate Source Current I

UG_SRC

BOOT

-V

PHASE

=12V,

BOOT

-V

UGATE

=6V

-1 A

Upper Gate Sink Current I

UG_SNK

BOOT

-V

PHASE

=12V,

BOOT

-V

UGATE

=6V

1.5 A

Upper Gate Sink Resistance R

UGATE

50mA Sink Current

BOOT

-V

PHASE

=12V

1.6 3.2

Ω

Lower Gate Source Current I

LG_SRC

-V

LGATE

=6V -1 A

Lower Gate Sink Current I

LG_SNK

LGATE

=6V 1.5 A

Lower Gate Sink Resistance R

LGATE

=12V,

50mA Source Current

1 2

Ω

PHASE Falling to LGATE

Rising Delay

PHASE

<1.2V to

LGATE

>1.2V

50 ns

LGATE Falling to UGATE

Rising Delay

LGATE

<1.2V to

UGATE

-V

PHASE

)>1.2V

50 ns

Minimum Duty Cycle 0 %

Maximum Duty Cycle 75 80 85 %

REFERENCE VOLTAGE

Feedback Voltage V

Stand-alone Mode 0.591 0.6 0.609 V

1 2 3 4 5 6 7 8 9 10 11 12 13

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