Dedicated Reset Function Ics; Led Driver Ics - Sanyo EP91G Brochure

Dedicated Reset Function ICs

Dedicated Reset Function ICs
LA5623M LA5623M
■ Applications
Combination system reset IC
■ Functions/Features
● Reset circuit (output 1) that detects the input voltage
and provides a delay time of 200μs
● System reset circuit with switchable delay time of
25ms, 50ms, 100ms, and 200ms (output 2)
● Low minimum operating voltage
● Both reset 1 and reset 2 have hysteresis characteristics
Absolute maximum Total power
Package
ratings Input voltage dissipation
2-system reset IC with built-in 1.25V, and 4.2V reference voltages, delay
-0.3V to +12V 0.3W MFP8(225mil)
time 25ms, 50ms, 100ms, or 200ms switchable
V REF
1.25V
+
-
INPUT 2
+
V REF
-
4.2V
Reset circuit
8 4
MANUAL GND
RESET
23
unit: mm
5.0
8 5
1 4
(0.65)
1.27 0.35 0.15
SANYO: MFP8(225mil)
Functions/Features
Block Diagram
V CC
7
10kΩ
6 OUT1
10kΩ
5 OUT2
OSC Divider circuit Drive block
Multiplexer
1 3
Ct0 Ct1

LED Driver ICs

LED Driver ICs
LV5215LF LV5215LF
■ Applications
LED driver for use in cell phones
■ Functions/Features
● Four main LED driver circuits
● Supports two LED current modes
● Compact package
● Thermal shutdown function
Input voltage Channels Package
3.0V to 4.5V 4ch VQFN12(2.0×2.0)
V CC 1
MLED1 MLED2
LED DRIVER
SWI SWO
R2
11kΩ
unit: mm
TOP VIEW SIDE VIEW BOTTOM VIEW
Exposed Die-Pad
2.0
Do Not Connect
(1.0)
12
2 1
1 2
0.5 (0.5)
0.25
SIDE VIEW
SANYO: VQFN12(2.0X2.0)
Circuit Functions and Applications
LED driver for use in cell phones
Block Diagram
VBAT
MLED3 MLED4 V CC
IREF IF
RT CTL GND
R1
110kΩ
24