LM3565

SNVS957 – JANUARY 2013

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ELECTRICAL CHARACTERISTICS

range (

(1) (2)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

CURRENT AND VOLTAGE SPECIFICATIONS

60 mA

LED Current accuracy

(–5%)

(+5%)

930 mA

Current source headroom voltage

300

350

mV

Over-voltage protection range

Trip Point (Rising)

9.0

9.5

10.0

V

Shutdown current

1

µA

Standby current

1

µA

Operating quiescent current

Part switching

10

mA

UVLO

Under-voltage lock out

2.3

2.4

2.5

V

Rising VIN

50

100

150

mV

CL Reg value = 00

2.07

2.3

2.53

CL Reg value = 01

2.34

2.6

2.86

Peak current limit

A

CL Reg value = 10

2.61

2.9

3.19

CL Reg value = 11

2.97

3.3

3.63

NFET pin-to-pin Resistance

88

m

Ω

PFET pin-to-pin Resistance

110

m

Ω

3.8

4.2

Switching frequency

4.0

MHz

(–5%)

(+5%)

LED current ramp up and down

20

µsec

Current ramp up time

1.4

msec

Fullscale

Torch deglitching time

6.3

9

11.7

msec

ANALOG-TO-DIGITAL (A/D) CONVERTER SPECIFICATIONS

ADCRES

A/D Resolution

Average step size

31.4

50

mV

VOFF

Offset error

1

Bits

GE

Gain error

(–2%)

(+2%)

CONTROL INTERFACE VOLTAGE SPECIFICATIONS

Low-level threshold voltage (SCL SDA,

0.54

V

ENABLE, TX-MASK, TORCH)

High-level threshold voltage (SCL SDA,

ENABLE, TX-MASK, TORCH, STROBE

1.26

V

1.8V)

Low-level output threshold limit (SDA)

0.4

V

Low-level threshold voltage (STROBE 1.2V)

0.36

V

High-level threshold voltage (STROBE

0.84

V

1.2V)

(1)

Min and Max limits are specified by design, test, or statistical analysis. Typical (Typ) numbers are not verified, but do represent the most

(2)

Switching disabled.

4

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