AT1452 查看數據表（PDF） - Unspecified

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AT1452

Photoflash Capacitor Charger for DSC

Unspecified 

AT1452

Preliminary Product Information

Photoflash Capacitor Charger for DSC

Electrical Characteristics

Parameter

Symbol

(VCC = 3.3V,Ta =+25℃, unless otherwise noted.)

Condition

Values

Unit

Min. Typ. Max.

Entire device

Oscillator

Input Supply Range

VCC

Feedback Voltage

VFB Ta =+25℃

Reference Variation

with Temperature

Ta =-30℃ to +85℃

Auto-Refresh Level

VFB1

VFB1 / VFB

Feedback Voltage

line-regulation

Standby current

VFB-Line VCC=2.5V to 5.5V

ICCS CHRGE=GND

Operating Current

Duty=50%,

ICC fOSC=50KHz

A

Frequency

fosc B

Threshold voltage of SS

Soft-Start and Duty Threshold voltage of SS

Section

Charging current

VSS_0

VSS 100

ISS

Duty Cycle=0%

Duty Cycle=90%

VSS=0V

2.5 -- 5.5 V

1.080 1.100 1.120 V

-2% - 2% %

- 90 - %

-5 1 5 mV

- - 400 μA

- 1.0 - mA

40 50 60 kHZ

90 100 110 kHZ

- 0.3 - V

- 1.1 - V

0.7 1.0 1.5 μA

Output Section

Charge ON/OFF

Section

Maximum duty cycle

Output source current

Output sink current

Output ON resistor

Output OFF resistor

TDUTY

80 83 90 %

ISOURCE Duty≧95%, OUT=0V - -130 -80 mA

ISINK Duty≦5%, OUT=5V 65 100 - mA

ROH OUT = -15mA

- 18 30 Ω

ROL OUT = 15mA

- 16 25 Ω

Active mode Threshold VONH

2.0

V

Disable mode Threshold VONL

0.8 V

2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.

Tel: 886-3-563-0878

WWW: http://www.aimtron.com.tw

Fax: 886-3-563-0879

Email: service@aimtron.com.tw

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