LTC3524EUF#PBF Linear Technology, LTC3524EUF#PBF Datasheet - Page 5

• Manufacturer Part Number: LTC3524EUF#PBF
• Description: IC TFT BIAS SUPPLY ADJ 24-QFN
• Manufacturer: Linear Technology

Specifications of LTC3524EUF#PBF

• Applications: LCD Display
• Voltage - Supply: 2.5 V ~ 6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-QFN
• Operating Supply Voltage (typ): 3.3/5V
• Number Of Segments: 8
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Package Type: QFN EP
• Pin Count: 24
• Mounting: Surface Mount
• Operating Supply Voltage (min): 2.5V
• Operating Supply Voltage (max): 6V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / Rohs Status: Compliant

TYPICAL PERFORMANCE CHARACTERISTICS
I
LCD
INDUCTOR
50mA/DIV
CURRENT
BOOST
5V/DIV
2V/DIV
SW1
LCD Bias Sequencing
SW1 Voltage and 10μH Inductor
Current at 5mA Load
I
LED
INDUCTOR
E
LED1
BOOST
E
LED1
VN
LED2
SW2
VH
AND
V2X
200ns/DIV
5ms/DIV
LED Burst Dimming Waveforms
LED1 and SW2
V
OUT
12V
500μs/DIV
3524 G14
3524 G11
I
200mV/DIV
200mA/DIV
LCD
INDUCTOR
200mA/DIV
CURRENT
BOOST
5V/DIV
5V/DIV
SW2
SW2
3524 G17
LCD Bias Sequencing
SW2 Voltage and 4.7μH Inductor
Current at 20mA
5V/DIV
200mA/DIV
10V/DIV
10V/DIV
I
LCD
BOOST INDUCTOR CURRENT
V
VH
VN
OUT
200ns/DIV
5ms/DIV
I
LED
E
INDUCTOR
LED1
BOOST
E
LED2
V
AND
LED2
LED
LED Burst Dimming Waveforms
LED2 and VLED
T
3524 G15
A
3524 G12
= 25°C, unless otherwise noted.
I
500mV/DIV
LCD
INDUCTOR
12.5V
12V
CURRENT
50mA/DIV
2V/DIV
BOOST
5V/DIV
500μs/DIV
SW1
SW1 Voltage and 10μH Inductor
Current at 25mA Load
LED Initial Start-Up Waveforms
V
LED
LED1
3524 G18
LED2
200ns/DIV
50μs/DIV
LTC3524
5V/DIV
200mA/DIV
10V/DIV
10V/DIV
I
INDUCTOR
CURRENT
LED
BOOST
5
3524 G16
3524 G13
3524f