MAX16816 datasheet(3/33 Pages) MAXIM

部件名	MAX16816

功能描述	Programmable Switch-Mode LED Driver with Analog-Controlled PWM Dimming

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制造商	MAXIM [Maxim Integrated Products]

网页	https://www.maximintegrated.com/en.html

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Programmable Switch-Mode LED Driver

with Analog-Controlled PWM Dimming

_______________________________________________________________________________________

3

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

REG2 control register is ‘0000’,

VCC ≥ 7.5V, IREG2 = 1mA

4.75

5

5.25

REG2 control register is ‘0011’,

VCC ≥ 9.5V, IREG2 = 1mA

6.65

7.0

7.35

REG2 control register is ‘1111’,

VCC ≥ 17.5V, IREG2 = 1mA

13.5

15

16.5

REG2 control register is ‘0000’,

VCC = 5.7V, 0

≤ IREG2 ≤ 20mA

4

4.5

5.25

REG2 control register is ‘0000’,

VCC = 7.5V, 0

≤ IREG2 ≤ 20mA

4.75

5

5.25

REG2 Regulation Voltage

REG2 control register is ‘1111’,

VCC = 17.5V, 0

≤ IREG2 ≤ 20mA

13.5

15

16.5

V

HIGH-SIDE REGULATOR (CLMP) (All voltages referred to VLO) (Note 2)

CLMP UVLO Threshold

VCLMP_TH

VCLMP rising

2.0

2.5

3.0

V

CLMP UVLO Threshold

Hysteresis

VCLMP_HYS

0.22

V

8.7V

≤ (VHI - VLO) ≤ 36V, ICLMP = 1mA

5.5

8.0

10.0

CLMP Regulator Output

Voltage

VCLMP

5.0V

≤ (VHI - VLO) ≤ 8.7V, ICLMP = 250µA

(VHI - VLO)

- 0.7

V

CURRENT-SENSE AMPLIFIER (CSA)

Differential Input Voltage

Range

VCS+ - VCS-

0

0.3

V

Common-Mode Range

VCC ≤ 68V

0

VCC

V

CS+ Input Bias Current

ICS+

VCS+ = 0.3V, VCS- = 0V

-250

+250

nA

CS- Input Bias Current

ICS-

VCS+ = 0.3V, VCS- = 0V

400

µA

Unity-Gain Bandwidth

From (CS+ to CS-) to CS

1.0

MHz

REF OUTPUT BUFFER

REF Output Voltage

VREF

-100µA

≤ IL ≤ +100µA

2.85

3.0

3.15

V

DIM DRIVER

Minimal Pulse Width

fDIM = 200Hz (Note 3)

20

40

µs

VCLMP - VLO = 4V

5

20

Source Current

VCLMP - VLO = 8V

30

67

mA

VCLMP - VLO = 4V

10

22

Sink Current

VCLMP - VLO = 8V

40

76

mA

GATE DRIVER

DRI Voltage Range

VDRI

VCC ≥ 2.5V above VDRI

515

V

DRI UVLO Threshold

VUVLO_TH

4.0

4.2

4.4

V

DRI UVLO Threshold

Hysteresis

VUVLO_HYST

0.3

V

ELECTRICAL CHARACTERISTICS (continued)

(VCC = VUVEN = 14V, CREG1 = 1µF, CREG2 = 1µF, CCLMP = 0.1µF, RT = 25kΩ, TA = TJ = -40°C to +125°C, unless otherwise noted.

Typical specifications are at TA = +25°C.)

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