MAX16807 데이터 시트보기 (PDF) - Maxim Integrated

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MAX16807

Integrated 8-Channel LED Driver with Switch-Mode Boost and SEPIC Controller

Maxim Integrated 

MAX16807

Integrated 8-Channel LED Driver with

Switch-Mode Boost and SEPIC Controller

Electrical Characteristics (PWM Controller) (continued)

(VCC = +15V, V+ = +3V to +5.5V referenced to PGND, RT = 10kΩ, CT = 3.3nF, REF = open, COMP = open, CREF = 0.1μF, VFB =

2V, CS = AGND, VAGND = VPGND = 0V; all voltages are measured with respect to AGND, unless otherwise noted. TJ = TA = -40°C to

+125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

PARAMETER

CURRENT-SENSE AMPLIFIER

Current-Sense Gain

Maximum Current-Sense Signal

Power-Supply Rejection Ratio

Current-Sense Input Bias Current

Current Sense to OUT Delay

MOSFET DRIVER

SYMBOL

ACS

VCS_MAX

PSRR

ICS

tPWM

OUT Low-Side On-Resistance

VRDS_ONL

OUT High-Side On-Resistance

VRDS_ONH

Source Current (Peak)

ISOURCE

Sink Current (Peak)

ISINK

Rise Time

tR

Fall Time

tF

UNDERVOLTAGE LOCKOUT/STARTUP

Startup Voltage Threshold

VCC_START

Minimum Operating Voltage

After Turn-On

VCC_MIN

Undervoltage-Lockout Hysteresis UVLOHYST

PULSE-WIDTH MODULATION (PWM)

Maximum Duty Cycle

Minimum Duty Cycle

SUPPLY CURRENT

DMAX

DMIN

Startup Supply Current

Operating Supply Current

VCC Zener Voltage

ISTART

ICC

VZ

CONDITIONS

(Notes 3, 4)

(Note 3)

12V ≤ VCC ≤ 25V

VCOMP = 0V

50mV overdrive

ISINK =

200mA

TJ = -40°C to +85°C (Note 2)

TJ = -40°C to +125°C

ISOURCE = TJ = -40°C to +85°C (Note 2)

100mA

TJ = -40°C to +125°C

CLOAD = 10nF

CLOAD = 10nF

CLOAD = 1nF

CLOAD = 1nF

VCC = 7.5V

VFB = VCS = 0V

ICC = 25mA

MIN TYP MAX UNITS

2.85 3.00 3.40 V/V

0.275 0.300 0.325 V

70

dB

-1

-2.5

µA

60

ns

4.5 10

Ω

4.5 12

3.5 7.5

Ω

3.5 10

2

A

1

A

15

ns

22

ns

7.98 8.4 8.82

V

7.1 7.6 8.0

V

0.8

V

94.5 96 97.5

%

0

%

32

65

µA

3

5

mA

24 26.5

V

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