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AP3706P-E1

PRIMARY SIDE CONTROL IC FOR OFF-LINE BATTERY CHARGERS

BCD Semiconductor 

Data Sheet

PRIMARY SIDE CONTROL IC FOR OFF-LINE BATTERY CHARGERS AP3706

Electrical Characteristics

(VCC=15V, TA=25oC, unless otherwise specified.)

Parameter

Symbol

UVLO SECTION

Start-up Threshold

VTH (ST)

Conditions

Min Typ Max Unit

17

18.5

20

V

Minimal Operating Voltage

VOPR(min) After turn on

REFERENCE VOLTAGE SECTION

BIAS Pin Voltage

VBIAS

RBIAS=200kΩ,

Before turn on

6.5

7.3

8.1

V

1.170 1.205 1.240

V

VDD Pin Voltage

VDD

4.75

5.0

5.25

V

STANDBY CURRENT SECTION

Start-up Current

Operating Current

DRIVE OUTPUT SECTION

IST

ICC(OPR)

VCC = VTH (ST)-0.5V,

RBIAS=200kΩ, Before turn on

RBIAS=200kΩ

70

80

μA

680

900

μA

OUT Maximum Current Sink

Source

IOUT RBIAS=200kΩ

50

mA

25

30

CURRENT SENSE SECTION

Current Sense Threshold

VCS

490

510

530

mV

Pre-Current Sense

VCS(PRE)

440

460

480

mV

Leading Edge Blanking

430

ns

FEEDBACK INPUT SECTION

Feedback Pin Input Leakage

Current

IFB

VFB=4V

10.0 12.5 15.0

μA

Feedback Threshold

VFB

3.90 4.00 4.10

V

Enable Turn-on Voltage

VFB(EN)

-0.9

-0.7

-0.5

V

COMP THRESHOLD VOLTAGE SECTION

Turn-on Threshold Voltage

VCOMP

3.42 3.60 3.78

V

PROTECTION SECTION

Over Voltage Protection

VFB(OVP)

7

8

9

V

Jul. 2008 Rev. 1.3

BCD Semiconductor Manufacturing Limited

5

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