ADP1655-EVALZ Analog Devices Inc, ADP1655-EVALZ Datasheet - Page 3

• Manufacturer Part Number: ADP1655-EVALZ
• Description: Dual LED Flash Driver Eval. Board
• Manufacturer: Analog Devices Inc

Specifications of ADP1655-EVALZ

• Core Chip: ADP1655
• Topology: Boost
• No. Of Outputs: 2
• Dimming Control Type: PWM
• Tool / Board Applications: Analog/Mixed Signal-Clock, Timer
• Supported Devices: AD9552
• Msl: MSL 1 - Unlimited
• Current - Output / Channel: 500mA
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 4.9V
• Features: Camera Flash and Torch Modes, I²C Interface, Programmable Output Current
• Voltage - Input: 2.7 ~ 5.5 V
• Utilized Ic / Part: ADP1655
• Development Tool Type: Hardware - Eval/Demo Board
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SPECIFICATIONS
V
otherwise noted.
Table 1.
Parameter
SUPPLY
INPUTS
LED DRIVER
SWITCHING REGULATOR
IN
Input Voltage Range
Undervoltage Lockout Threshold
Hysteresis
Shutdown Current
Standby Current
Operating Quiescent Current
SW Switch Leakage
Input Logic Low Voltage
Input Logic High Voltage
TORCH, STROBE, TX_MASK Pull-Down
SCL/EN1, SDA/EN2 Pull-Down
TORCH Glitch Filtering Delay
LED Current
Assist Light, Torch
Flash
LED Current Accuracy
LED Current Source Headroom
LED_OUT Ramp-Up Time
LED_OUT Ramp-Down Time
Maximum Timeout For Flash
Timer Accuracy
Switching Frequency
Minimum Duty Cycle
N-FET Resistance
P-FET Resistance
= 3.6 V, T
I2C/EN = SCL/EN1 = SDA/EN2 = 1.8 V
1
J
= −40°C to +125°C for minimum/maximum specifications and T
2
Conditions
V
T
T
Torch mode, two LEDs, LED current = 40 mA
T
I2C/EN = 0 V
From TORCH rising edge to device start
I2C/EN = 0, one LED
I2C/EN = 0, two LEDs
I2C/EN = 1, assist light value setting = 0 (000 binary)
I2C/EN = 1, assist light value setting = 7 (111 binary)
I2C/EN = 0, one LED
I2C/EN = 0, two LEDs
I2C/EN = 1, flash value setting = 0 (0000 binary)
I2C/EN = 1, one LED, flash value setting = 15 (1111 binary)
I2C/EN = 1, two LEDs, flash value setting = 10 to 15 (1010 to
1111 binary)
I
I
I
Flash typical, 400 mA LED current
Torch 160 mA
LED
LED
LED
J
J
J
IN
= −40°C to +85°C, current into VIN pin, V
= −40°C to +85°C, current into VIN pin, V
= −40°C to +85°C
falling
= 320 mA to 500 mA
= 60 mA to 320 mA
= 20 mA to 60 mA
Rev. 0 | Page 3 of 24
A
= 25°C for typical specifications, unless
IN
IN
= 2.7 V to 4.5 V
= 2.7 V to 4.5 V
Min
2.7
2.3
50
1.26
6.3
−5
−5
−5
−7.5
1.85
Typ
2.4
100
5.3
350
350
9
80
40
20
160
500
320
200
500
400
290
190
850
2
9.0
135
290
0.3
3
ADP1655
Max
1
0.54
+5
1
0.5
+7.5
5.5
2.5
150
11.7
+10
+20
2.15
1
10
Unit
V
V
mV
mA
μA
V
V
kΩ
kΩ
ms
mA
mA
mA
mA
mA
mA
mA
mA
mA
%
%
%
mV
ms
ms
ms
%
MHz
%
mΩ
mΩ
μA
μA