LTC3210



3210fb

ENM = high, unless otherwise noted.

Note 3: The LTC3210E is guaranteed to meet performance specifications

from 0°C to 85°C. Specifications over the –40°C to 85°C operating

temperature range are assured by design, characterization and correlation

with statistical process controls.

Note 5: If the part has been shut down then the initial enable time is about

100µs longer due to the bandgap enable time.

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: Based on long-term current density limitations. Assumes an

operating duty cycle of ≤10% under absolute maximum conditions

for durations less than 10 seconds. Maximum current for continuous

operation is 300mA.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Unused MLED Detection

Test Current

MLED Tied to CPO

l

4

16

µA

Threshold Voltage

l

0.5

1.5

V

CLED Current

l

6750

7500

8250

A/A

LED Dropout Voltage

500

mV

CLED Current, 3-Bit Linear DAC

1 ENC Strobe (FS)

7 ENC Strobes (FS/7)

380

54

mA

mA

Charge Pump (CPO)

1x Mode Output Voltage

V

1.5x Mode Output Voltage

4.55

V

2x Mode Output Voltage

5.05

V

1x Mode Output Impedance

0.5

Ω

1.5x Mode Output Impedance

3.15

Ω

2x Mode Output Impedance

3.95

Ω

CLOCK Frequency

0.8

MHz

Mode Switching Delay

0.4

ms

CPO Short Circuit Detection

Threshold Voltage

l

0.4

1.3

V

Test Current

CPO = 0V, ENM = ENC = Low

l

10

30

mA

ENC, ENM

l

0.4

V

l

1.4

V

ENM = ENC = 3.6V

l

10

15

20

µA

ENM = ENC = 0V

l

–1

1

µA

ENC, ENM Timing

Minimum Pulse Width

l

60

ns

Low Time to Shutdown (ENC and ENM = Low)

l

50

150

250

µs

Current Source Enable Time

(ENC or ENM = High) (Note 5)

l

50

150

250

µs

RM, RC

l

1.16

1.20

1.24

V

l

70

µA

electrical characteristics