HM7502PR datasheet(4/9 Pages) HMSEMI

номер детали	HM7502PR

подробное описание детали	2-channel Constant Current Regulator

PDF	9 Pages

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производитель	HMSEMI [Shenzhen Huazhimei Semiconductor Co., Ltd]

домашняя страница	http://www.hmsemi.com/

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4 / 9 page

DC CHARACTERISTICS

VDD=3.0V, VCH1, VCH2=1.0V, CvDD = 0.1uF, C1=C2=10nF, TA=25oC; unless otherwise specified.

Symbol

Characteristics

Condition

Min.

Typical

Max.

Unit

VDD

Supply Voltage

2.5

–

VDD>5V, ICH1 or ICH2= 30mA

0.45

–

Output Voltage (30mA)

VDD=2.5V, ICH1 or ICH2= 30mA

0.7

–

VDD>5V, ICH1 or ICH2= 60mA

0.85

–

VCH1, VCH2

Output Voltage (60mA)

VDD=3V, ICH1 or ICH2= 60mA

–

IDD

Supply Current

–

400

600

ICH1, ICH2

Peak Regulated Current

–

IAC

Output Current Accuracy

VDD=3.0V, VCH1 or VCH2=1.0V

–5

–

tcoe

Temperature Coefficient

Tj=–40 oC ~125 oC

–500

–

+500

ppm/oC

REXT

External Resistor

11250

–

Open

%/VDD

Line Regulation

VDD=2.5V~40V, VCH1 or VCH2=2.5V

–0.5

–

+0.5

%/V

%/VCH

Load Regulation

VDD=3.0V, VCH1 or VCH2=2.5V~40V

–0.6

–

+0.6

%/V

tOTP

OTP Active Temperature

VDD=2.5V~40V

–

155

–

tOPT_IN

OTP Inactive Temperature VDD=2.5V~40V

–

Note:

The condition can be achieved with the test circuit only.

TEST CIRCUIT

VLED2

VDD

ICH1

GND

VDD VCH1 VCH2

ICH2

VLED1

REXT

CVDD

REXT

)

(

)

(

)

(

open

VCH

EXT

REXT

VCH

•

= 1

where RIN=11300Ω, and IVCH is reference current with REXT open.

2-channel Constant Current Regulator

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