ADP1660

Data Sheet

Rev. 0 | Page 4 of 28

Parameter2

Test Conditions/Comments

Min

Typ

Max

Unit

DIGITAL INPUTS/GPIO PIN

Input Logic Low Voltage

0.54

V

Input Logic High Voltage

1.26

V

GPIO, STROBE Pull-Down Resistance

390

kΩ

Torch Glitch Filtering Delay4

From GPIO (torch) rising edge to device start

7.4

8.0

8.6

ms

SAFETY FEATURES

Maximum Timeout for Flash

1600

ms

Timer Accuracy

−7.0

+7.0

%

DC Current Limit5

DC current value setting = 0 (000 binary)

0.9

1.0

1.1

A

DC current value setting = 1 (001 binary)

1.1

1.25

1.4

A

DC current value setting = 2 (010 binary)

1.35

1.5

1.65

A

DC current value setting = 3 (011 binary)

1.55

1.75

1.95

A

DC current value setting = 4 (100 binary)

1.8

2.0

2.2

A

DC current value setting = 5 (101 binary)

2.0

2.25

2.5

A

DC current value setting = 6 (110 binary)

2.25

2.5

2.75

A

DC current value setting = 7 (111 binary)

2.45

2.75

3.1

A

Low Battery Mode Transition Voltage

Error

3.2

%

Hysteresis

50

mV

Coil Peak Current Limit6

Peak current value setting = 0 (00 binary)

2.02

2.25

2.5

A

Peak current value setting = 1 (01 binary)

2.47

2.75

3.0

A

Peak current value setting = 2 (10 binary)

2.9

3.25

3.5

A

Peak current value setting = 3 (11 binary)

3.15

3.5

3.85

A

Overvoltage Detection Threshold

5.15

5.5

5.9

V

LED1/LED2 Short-Circuit Detection

Comparator Reference Voltage

1.0

1.3

V

Thermal Shutdown Threshold

150

°C

140

°C

1

2

All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).

3

4

Guaranteed by design. Torch glitch filtering depends directly on internal oscillator tolerances.

5

All dc current limit values are guaranteed by design except for the 1.25 A setting, which is tested in production.

6

All coil peak current limit values are guaranteed by design except for the 2.25 A setting, which is tested in production.

RECOMMENDED SPECIFICATIONS: INPUT AND OUTPUT CAPACITANCE AND INDUCTANCE

Table 2.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

CAPACITANCE

Input

4.0

10

µF

Output

3.0

10

20

µF

MINIMUM AND MAXIMUM INDUCTANCE

L

0.6

1.0

1.5

µH