Datasheet > AL8853AQ

AL8853AQ

更新时间： 2023-12-06 20:02:13

品牌	Logo	应用领域
美台 - DIODES		/
页数	文件大小	规格书
15页	1227K
描述
Automotive-Compliant 40V Boost Controller

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AL8853AQ 数据手册

AL8853AQ

Recommended Operating Conditions

Symbol

Parameter

Min

Max

Unit

V_IN

f_PWM

T_J

VIN Pin Voltage

PWM Frequency for PWM Converted to Analog DC Dimming

Operating Junction Temperature

kHz

-40

+150

+125

°C

T_A

Ambient Temperature

-40

Electrical Characteristics (V_IN= 12V, V_PWM= 5V, @T_A= -40°C to +125°C, unless otherwise specified.) (Note 6)

Symbol

Supply Voltage

V_IN

Parameter

Conditions

Min

Typ

Max

Unit

Input Voltage

—

6.0

—

V_IN= 12V, V_PWM= 5V,

No Load

Operating Supply Current

Shutdown Supply Current

µA

I_OP

PWM Low > 50ms, Sleep Mode

—

180

I_SHDN

Undervoltage Lockout

Input UVLO Threshold

4.8

5.4

V_UVLO

V_HYS

V_INRising

Input UVLO Hysteresis

—

400

—

Soft-Start

I_{SS_SLOP}

Soft-Start Slope

—

mV/ms

Error Amplifier and Current Sense

Reference Voltage at

194

190

200

206

215

Non-Inverting Input T_A= +25°C

Feedback Reference Voltage

V_FB

T_A= -40°C to +125°C

Open-Loop Voltage Gain

Transconductance of EA

Output Source Current

Output Sink Current

—

100

—

µA/V

µA

A_m

G_m

I_SOURCE

I_SINK

µA

Input-to-Output Gain at DC,

V_CS< 1V

DC Gain of Current Sense

0.6

1.4

—

K_CS

PWM to Analog Dimming Control

—

PWM Duty Input Range

—

100

—

2.5

—

V_{PWM_H}

V_{PWM_L}

Protection Threshold

PWM Logic Input for Analog Dimming

1.2

Output Overvoltage Threshold Voltage

—

1.9

—

2.0

200

100

300

1.2

2.1

—

V_{OVP_OV}

Normal Operation

System Startup

Duty = 90%

Diode or Inductor Short

FB Short to GND

—

OVP UVLO Threshold Voltage

V_{OVP_UVLO}

—

Overcurrent Threshold Voltage

CS High-Protection Threshold

COMP High-Protection Threshold

Overtemperature Threshold

255

1.1

2.9

—

345

1.3

3.5

—

V_{CS_OCP}

V_{CS_HIGH}

V_{CMP_HIGH}

T_OTP

3.2

+160

°C

Gate Driver

Oscillator Frequency

Max Duty Cycle

Gate Pin Output Voltage

Rising Time

—

360

—

400

430

—

kHz

f_OSC

D_MAX

V_GATE

t_RISE

—

V_IN= 24V

—

1nF Load

Falling Time

—

t_FALL

Note:

6. These parameters, although guaranteed by design, are not 100% tested in production.

4 of 15

www.diodes.com

September 2023

AL8853AQ

Document number: DS45623 Rev. 2 - 2

1 2 345 6 7...15

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