AP3598A datasheet(7/28 Pages) DIODES

Part #	AP3598A

Description	COMPACT DUAL-PHASE SYNCHRONOUS-RECTIFIED BUCK CONTROLLER

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Manufacturer	DIODES [Diodes Incorporated]

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AP3598A

Document number: DS37261 Rev. 2 - 2

7 of 28

www.diodes.com

November 2014

AP3598A

A Product Line of

Diodes Incorporated

Electrical Characteristics (Cont. VCC = 12V, VPCC = 12V, TA = +25ºC, unless otherwise specified.)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

POWER SAVING INTERFACE

VPSIH

Power Saving Interface High

Threshold

Dual Phase with FCCM

1.5

–

V

VPSIL

Power Saving Interface Low

Threshold

Single Phase with DCM

–

0.4

V

VPSIM

Power Saving Interface

Intermediate Threshold

Single Phase with FCCM

0.8

–

1.1

V

POWER GOOD

tPG_DLY

Delay Time for PGOOD from

High to Low

–

10

–

µs

RPG

Internal Power Good Pull Low

Resistance

–

150

Ω

GATE DRIVER

IHG_SRC

Upper Gate Sourcing Current

VBOOTx-VPHASEx = 6V

–

1.2

–

A

RHG_SNK

Upper Gate Sinking

Resistance

VUGATEx-VPHASEx = 0.1V

IUGATEx = 100mA

–

2

–

Ω

ILG_SRC

Lower Gate Sourcing Current

VCC-VLGATEx = 6V

–

1.2

–

A

RLG_SNK

Lower Gate Sinking

Resistance

VLGATEx = 0.1V

ILGATEx = 100mA

–

1.4

–

Ω

VBOOT

Boot Diode Forward Voltage

VPCC-VBOOT, IBOOT =

20mA

–

0.8

–

V

PROTECTION

VUVP

Output Under Voltage

Protection Threshold

–

0.5*

VOUT

V

tUVP

Delay Time for UVP Triggered

–

50

–

μs

VOVP

Output Over Voltage Protection

Threshold

–

1.4*

VOUT

–

V

tOVP

Delay Time for OVP Triggered

–

50

–

μs

IOCSET

LGATE OC Setting Current

–

21.5

–

μA

–

Built-in Maximum OCP Voltage

–

0.35

–

V

THERMAL PROTECTION

TSD

Thermal Shutdown Threshold

–

+150

+160

+170

ºC

TALERT#

Minimum Thermal Alert

Threshold

–

+120

+130

+140

ºC

VTSNS

Temperature Sense Threshold

–

1.00

–

V

PWM-VID DYNAMIC VOLTAGE CONTROL

VIH

Logic High Level

–

1.5

–

V

VIL

Logic Low Level

–

0.4

V

VID

VID Voltage in High-Z Mode

–

1.1

–

V

CURRENT BALANCE

IOFS

Current Balance Sense Offset

–

0

–

μA

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