STEVAL-ILL008V1 STMicroelectronics, STEVAL-ILL008V1 Datasheet - Page 2
![EVAL BOARD CREE LED FLASHLIGHT](/photos/9/16/91661/steval-ill008v1_sml.jpg)
STEVAL-ILL008V1
Manufacturer Part Number
STEVAL-ILL008V1
Description
EVAL BOARD CREE LED FLASHLIGHT
Manufacturer
STMicroelectronics
Datasheets
1.L6920DC.pdf
(13 pages)
2.STEVAL-ILL008V1.pdf
(4 pages)
3.STEVAL-ILL008V1.pdf
(15 pages)
Specifications of STEVAL-ILL008V1
Mfg Application Notes
Low Voltage LED Driver AppNote
Design Resources
STEVAL-ILL008V1 Gerber Files STEVAL-ILL008V1 Schematic STEVAL-ILL008V1 Bill of Materials
Outputs And Type
1, Non-Isolated
Voltage - Output
3.5V
Features
1V Start up Input Voltage
Voltage - Input
1 ~ 5.5 V
Utilized Ic / Part
L6920
Product
Display Modules
Core Chip
L6920DA
Output Voltage
3.5V
Kit Contents
L6920D, L4971, L6902D Reference Board
Development Tool Type
Hardware - Eval/Demo Board
Tool / Board Applications
LED Flashlight
Mcu Supported Families
L6920DA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output / Channel
-
Lead Free Status / Rohs Status
Details
Other names
497-5516
L6920
Table 1. Pin Description
Figure 2. Pin Connection (Top view)
Table 2. Absolute Maximum Ratings
Table 3. Thermal Data
2/13
Symbol
Symbol
R
V
Pin
V
out max
th j-amb
1
2
3
4
5
6
7
8
ccmax
T
j
SHDN
Name
LBO
GND
REF
OUT
LBI
V
LBI, SHDN, FB to GND
Vout to GND
Thermal Resistance Junction to Ambient
Maximum Junction Temperature
FB
LX
cc
to GND
Output voltage selector. Connect FB to GND for Vout=5V or to OUT for Vout=3.3V. Connect FB to an
external resistor divider for adjustable output voltage (from 2V to 5.2V) [see R4 and R5, fig. 7].
Battery low voltage detector input. The internal threshold is set to 1.23V.
A resistor divider is needed to adjust the desired low battery threshold:
Battery low voltage detector output. If the voltage at the LBI pin drops below the internal
threshold typ. 1.23V,
The
correct output setting [see R3, fig. 7].
1.23V reference voltage. Bypass this output to GND with a 100nF capacitor for filtering high
frequency noise. No capacitor is required for stability
Shutdown pin. When pin 5 is below 0.2V the device is in shutdown, when pin 5 is above 0.6V the
device is operating.
Ground pin
Step-up inductor connection
Power OUTPUT pin
LBO
is an open drain output and so a pull-up resistor (about 200KΩ) has to be added for
LBO
REF
LBI
FB
Parameter
Parameter
LBO
V
LBI
goes low.
1
2
3
4
=
1.23V
TSSOP8
⋅
⎛
⎝
1
+
8
7
6
5
Function
R1
------- -
R2
⎞
⎠
[see R1 and R2, fig. 7]
OUT
LX
GND
SHDN
Value
Value
250
150
6
6
6
°C/W
Unit
Unit
°C
V
V
V