MAP3204 Просмотр технического описания (PDF) - MagnaChip Semiconductor

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MAP3204

4-channelLED Driverfor High Brightness LEDs

MagnaChip Semiconductor 

Confidential

Datasheet Version 1.5

Electrical Characteristics

Unless noted, VIN = 12V, CIN = 1.0µF, and typical values are tested at TA = 25°C. Boldface values indicate -40°C to +85°C of TA.

3

Parameter

Test Condition

Min

Typ

Max

General Input Output

VCC

Input Voltage Range

8.0

36

IQ

Quiescent Current

Driving FBs at minimum setting with no load

3

IGND

Ground Pin Current in

Shutdown

VCC = 12V, VEN = 0V

No Load Current on FBs

40

VEN

Logic Input Level on

EN pin

VEN_L : Logic Low

VEN_H : Logic High

0.8

2.0

REN_PULLDOWN Pull-down resistor on EN pin

500

VUVLO

Under-Voltage Lock-Out

Threshold Voltage on VDD pin

Release UVLO

Lockout UVLO

6.0

7.5

4.0

5.5

Oscillator

fSW

Internal Oscillator

Frequency

RFSW=250kΩ

RFSW=100kΩ

180

200

220

450

500

550

Dmax

Maximum Duty Cycle

85

90

Reference

VVDD

10V LDO Voltage

VCC > 12V, No load current

9

10

11.5

VLDO

5V LDO Voltage

VCC > 8V, No load current

4.5

5

5.5

Boost MOSFET Driver

VGATE

Gate Drive Voltage

VIN > 12V

9

10

11.5

ISINK

Gate Source Current

20

ISource

Gate Sink Current

20

tRISE

Gate Output Rising Time

1nF load capacitance

100

500

tFALL

Gate Output Falling Time

1nF load capacitance

100

500

Protection

TSD

Thermal Shutdown

Temperature

Shutdown Temperature

Hysteresis, ΔTSD

150

25

VOVP

VLEDSHORT

VSBDOPEN

Over-Voltage Threshold

Level on OVP pin

LED Short Protection

Threshold

SBD Open Protection

Threshold on OVP pin

Rising Over-Voltage Limit on OVP pin

Hysteresis, ΔVOVP

FB1 ~ FB4

1.23

1.28

1.33

0.05

0.12

5.5

0.1

tSCP

LED Short Protection Time

fSW=500kHz (Note 2)

VCS

Boost Over Current

Protection Threshold

Gate Duty-Cycle=90%

0.306

8.192

0.360

0.414

VLEDOPEN

LED Open Protection

Threshold

ILED=50mA

ILED=150mA

0.05

0.15

LED Current Sink Regulator

VFB1~4

IFB

Km

Minimum FB1~FB4 voltage for

the operation to sink 150mA

Current Accuracy

Current Matching (Note 1)

ISET=150mA

ILED=100mA

ILED=100mA

0.8

±3

±2.5

IFB_max

Current Sink max Current

150

PWM Interface

fPWM

PWM dimming frequency

0.1

22

VPWMI

Logic Input Level on

PWMI pin

VPWMI_L : Logic Low

VPWMI_H : Logic High

0.8

2.2

IPWM

Leakage Current on PWMI

pin

VPWM=1V

2

tPWMON_MIN

Minimum On-Duty

fPWM=1kHz

10

. (Note 1)

Km[%] = ± I max − I min ×100

I max + I min

(Note 2)

tscp = 1 × 4096

fsw

Unit

V

mA

µA

V

kΩ

V

kHz

%

V

V

V

mA

mA

ns

ns

°C

V

V

V

ms

V

V

V

V

%

%

mA

kHz

V

µA

us

Feb 28th 2012.

5

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