Datasheet > MPQ3326A-AEC1

MPQ3326A-AEC1

更新时间： 2024-04-09 19:01:46

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
39页	865K
描述
16-Channel, 80mA/Ch, LED Driver with Separated PWM/Analog Dimming and Serial Interface, AEC-Q100 Qualified

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MPQ3326A-AEC1 数据手册

MPQ3326A – 16-CH, 80mA/CH, LED DRIVER WITH SEPARATED PDIM/ADIM, AEC-Q100

ELECTRICAL CHARACTERISTICS

V_IN= 5V, V_EN= 5V, T_J= -40°C to +125°C, typical value is at T_J= 25°C, unless otherwise noted.

Parameter

Symbol

Condition

Min

Typ

Max Units

Input Supply Voltage

Input voltage (V_IN) range

Quiescent supply current

Shutdown supply current

V_IN

I_Q

4.5

μA

I_ST

V_EN= 0V, V_IN= 16V

V_INunder-voltage lockout

(UVLO) rising threshold

V_{IN_UVLO_RISING}Rising edge

V_{IN_UVLO_FALLING}Falling edge

3.6

3.3

3.8

3.5

4.2

3.7

V_INUVLO falling threshold

Enable

EN rising threshold

EN falling threshold

EN pull-down resistance

RFSH/FLT

V_{EN_RISING}

V_{EN_FALLING}

R_EN

V_ENrising

V_ENfalling

2.1

0.8

MΩ

FRFSH[9:0] = 0x1A9,

FPWM[1:0] = 01

Refresh signal frequency

f_REFRESH

285

300

315

100

RFSH/FLT pull-down

resistance

R_RFSH/FLT

FLTEN = 1, fault is triggered

LED Regulator

ISET voltage

V_ISET

I_{LED_1}

T_A= 25°C

1.176

-5%

1.2

1.224

+5%

R_ISET= 24kΩ, ICHx[5:0] = 0x3F

LED current 1

LED current 2

R_ISET= 24kΩ, ICHx[5:0] = 0x3F,

T_A= 25°C

-3%

-5%

-3%

+3%

+5%

+3%

R_ISET= 15kΩ, ICHx[5:0] = 0x3F

I_{LED_2}

R_ISET= 15kΩ, ICHx[5:0] = 0x3F,

T_A= 25°C

I_LED= 50mA

I_LED= 80mA

200

350

300

400

Current sink headroom

V_LEDx

Dimming

Pulse-width modulation

(PWM) frequency

f_PWM

FPWM[1:0] = 01

240

250

260

PWM duty step

Phase shift

t_PWM

12-bit resolution, f_PWM= 250Hz

PS_EN = 1

μs

t_DELAY

I_LED= 80mA, analog dimming

step

LED current step

1.25

SLEW[1:0] = 01, rising edge

SLEW[1:0] = 11, rising edge

μs

LED current slew rate in

PWM dimming

Protection

LED short string protection

threshold

V_SLP

t_SLP

STH[1:0] = 01

2.85

3.15

LED short string protection

time

V_LEDx> STH[1:0]

LED short string protection

hiccup time

t_{SLP_HICCUP}

MPQ3326A Rev. 1.0

11/7/2022

MonolithicPower.com

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

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