MAX8834Y(2009) 데이터 시트보기 (PDF) - Maxim Integrated

부품명

상세내역

일치하는 목록

MAX8834Y
(Rev.:2009)

Adaptive Step-Up Converters with 1.5A Flash Driver

Maxim Integrated 

Adaptive Step-Up Converters

with 1.5A Flash Driver

Typical Operating Characteristics (continued)

(Circuit of Figure 1, VIN = 3.6V, VOUT = 3.8V, VDD = 3.0V, TA = +25°C, unless otherwise noted.)

HEAVY-LOAD SWITCHING WAVEFORMS

(MAX8834Y)

MAX8834Y/Z toc21

VLX

2V/div

0V

ILX

VOUT

AC RIPPLE

VOUT = 5V

IOUT = 1A

1.5A

500mA/div

50mV/div

400ns/div

HEAVY-LOAD SWITCHING WAVEFORMS

(MAX8834Z)

MAX8834Y/Z toc22

VLX

ILX

VOUT

AC RIPPLE

2V/div

0V

VOUT = 5V

IOUT = 1A

500mA/div

1.5A

50mV/div

400ns/div

VGSMB

IIN

IFLED1

IFLED2

GSMB WAVEFORM

MAX8834Y/Z toc23

VOUT = 5V

ILIM = 500mA

IFLED1 = IFLED2 = 515.63mA

tHC_TRM = 80μs

2V/div

1A/div

500mA/div

1ms/div

500mA/div

MAXFLASH FUNCTION

MAX8834Y/Z toc24

VIN DROPS

3.6V BELOW THE

3.6V

VIN

THRESHOLD

VOLTAGE

200mV/div

IFLED1

VIN INCREASES TO

THE THRESHOLD

VOUT = 5V

IFLED1 = 750mA

VLB_TH = 3.0V

VLB_HYS DISABLED

0mA tTMR_DUR = 50ms

200mV/div

10ms/div

OUTPUT VOLTAGE LINE REGULATION

(MAX8834Y)

5.02

VOUT = 5V

5.01

IOUT = 16mA

5.00

OUTPUT VOLTAGE LINE REGULATION

(MAX8834Z)

5.02

VOUT = 5V

5.01

IOUT = 16mA

5.00

4.99

IOUT = 250mA

IOUT = 750mA

4.98

4.99

IOUT = 250mA

4.98

IOUT = 750mA

4.97

2.5

3.0

3.5

4.0

4.5

INPUT VOLTAGE (V)

4.97

2.5

3.0

3.5

4.0

4.5

INPUT VOLTAGE (V)

_______________________________________________________________________________________ 9

Share Link: