Datasheet > AL8862

AL8862

更新时间： 2023-12-06 20:11:32

品牌	Logo	应用领域
美台 - DIODES		驱动
页数	文件大小	规格书
17页	1757K
描述
60V 1A STEP-DOWN LED DRIVER

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数据手册

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AL8862 数据手册

AL8862

Electrical Characteristics (T = +25°C, unless otherwise noted.)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

SUPPLY VOLTAGE

Input Voltage

Quiescent Current

—

5.0

—

µA

V_IN

I_Q

450

4.8

200

CTRL Pin Floating, V_IN= 16V

V_INRising

Under Voltage Lockout

UVLO Hysteresis

V_UVLO

V_{UVLO_HYS}

—

HYSTERESTIC CONTROL

Measured on SET Pin with

Mean Current Sense Threshold Voltage

100

104

V_SET

Respect to V_IN

Sense Threshold Hysteresis

ISET Pin Input Current

—

±13

—

V_{SET_HYS}

I_SET

µA

V_SET= V_IN-0.1

ENABLE AND DIMMING

Voltage Range on CTRL Pin

For Analog Dimming

0.4

—

2.5

V_CTRL

—

Analog Dimming Range

—

100

DC Voltage on CTRL Pin for Analog

Dimming on

—

0.45

0.40

—

V_{CTRL_ON}

V_{CTRL_OFF}

V_CTRLRising

V_CTRLFalling

DC Voltage on CTRL Pin for Analog

Dimming off

SWITCHING OPERATION

SW Switch On Resistance

—

0.4

—

R_ON

I_{SW_LEAK}

t_SS

@ I_SW= 100mA

SW Switch Leakage Current

Soft-Start Time

μA

V_SW= 65V, Other Pins Floating

V_IN= 16V, C_CTRL= 1nF

1.5

—

V_IN= 16V, V_O= 9.6 V (3 LEDs)

Operating Frequency

—

250

—

kHz

f_SW

L = 47μH, ΔI = 0.25A (I_LED= 1A)

Recommended Maximum Switch

Frequency

—

MHz

f_{SW_MAX}

t_{ON_REC}

Recommended Minimum Switch ON

Time

For 4% Accuracy

500

—

Delay Time from Triggering of

Current Sense Threshold to SW

On/Off

Internal Comparator Propagation Delay

(Note 6)

—

100

—

t_PD

THERMAL SHUTDOWN

Over Temperature Protection

—

+150

+30

—

°C

T_OTP

Temperature Protection Hysteresis

Current Limit

—

T_{OTP_HYS}

I_{SW_MAX}

Peak Inductor Current

2.2

3.6

Note:

6. Guaranteed by design.

5 of 17

www.diodes.com

September 2022

AL8862

Document number: DS40375 Rev. 5 - 2

1 2 3 456 7 8...17

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