Datasheet

ADP1660 Data Sheet
Rev. 0 | Page 4 of 28
Parameter
2
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 Delay
4
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 Limit
5
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 Limit
6
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
T
J
Rising 150 °C
T
J
Falling 140 °C
1
V
IN
is the input voltage to the circuit.
2
All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).
3
V
SW
is the voltage on the SW switch pin.
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 C
MIN
T
A
= −40°C to +125°C
Input 4.0 10 µF
Output 3.0 10 20 µF
MINIMUM AND MAXIMUM INDUCTANCE L T
A
= −40°C to +125°C 0.6 1.0 1.5 µH