CMLB051H-6R8MS datasheet(7/37 Pages) KINETIC

7 / 37 page

KTZ8866

January 2022 - Revision 04b

Page 7 of 37

Company Confidential

Electrical Characteristics4

Unless otherwise noted, the Min and Max specs are applied over the full operation temperature range of

–40°C to +85°C, while Typ values are specified at room temperature (25°C). VIN = 3.6V.

Symbol

Description

Conditions

Min

Typ

Max

Units

Current Sink for LED Backlight

ISINK_ACC

Output current accuracy

Current setting = 30mA, TA = 25°C

-2.0

2.0

Current setting = 20mA, TA = 25°C

-2.2

2.2

Current setting = 1mA, TA = 25°C

-3.0

3.0

ISINK_MATCH

Output current matching6

Current setting = 30mA, TA = 25°C

-0.7

0.7

Current setting = 20mA, TA = 25°C

-0.7

0.7

Current setting = 1mA, TA = 25°C

-1.5

1.5

VHR

Current sink head room voltage

0.45

ILED_MIN

Minimum LED current per string

Linear or Exponential mapping

µA

ISTEP

LED step size5

Exponential Mode

0.3

Linear Mode

14.63

µA

VSOV

Current sink over voltage threshold5

TFAULT

Current sink fault delay

Boost Converter for LCD Power Bias

VREG

LCD boost output voltage range

6.6

LCD boost output voltage step size5

IREG_LIM

Peak current limit

VIN = 3.6V, TA = 25°C

1.3

1.45

FSW

Oscillator frequency

Continuous Mode, TA = 25°C

1.8

2.0

2.2

MHz

EFFLCDBST

Efficiency5

VIN = 3.6 V, VREG_OUT = 5.9 V, 6mA < IO

< 400mA, Typical application circuit

RON_HS

High side FET on resistance

VIN = 3.6V, TA = 25°C

390

500

mΩ

RON_LS

Low side FET on resistance

VIN = 3.6V, TA = 25°C

200

250

mΩ

VREG_PP

LCD boost output ripple5

Io = 5mA and 200mA, Co = 10µF

mVPP

DMAX

Maximum duty cycle

OUTP-Positive Output

OUTP

Positive output voltage range

4.0

6.3

Output voltage step size5

Output voltage accuracy

VOUTP = 5.5V, no load

-1.5

+1.5

IOUTP_MAX

Maximum output current limit

200

IOUTP_LIM

Positive output current limit

VIN = 3.6V, TA = 25°C

200

255

300

VOUTP_LOREG VOUTP LDO load regulation5

0 ≤ Io ≤ IOUTP_MAX

VOUTP_DO

VOUTP LDO dropout voltage5

IOUTP = IOUTP_MAX, VOUTP = 5.5V

200

TOUTP_SS

Startup time

Co = 10µF, VOUTP = 5.75V, VOUTP_RAMP

= 2b’01

456

µs

RPD_OUTP

Output pulldown resistor in shutdown

100

6 .The current matching among channels is defined as |ISINK-IAVG|MAX/IAVG.

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