LTC3577EUFF#PBF Linear Technology, LTC3577EUFF#PBF Datasheet - Page 14

• Manufacturer Part Number: LTC3577EUFF#PBF
• Description: IC PWR MANAGEMENT HANDHELD 44QFN
• Manufacturer: Linear Technology

Specifications of LTC3577EUFF#PBF

• Applications: Handheld/Mobile Devices
• Voltage - Supply: 4.35 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 44-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -

LTC3577/LTC3577-1
TYPICAL PERFORMANCE CHARACTERISTICS
STEP 5V/DIV
14
0V TO 5V
VOLTAGE
–100
OVGATE
600
500
400
300
200
100
5V/DIV
5V/DIV
37
35
31
29
27
INPUT
33
V
0
–40
OVP
BUS
0
OVSENS Quiescent Current
vs Temperature
Input and Battery Current
vs Load Current
V
R
R
WALL = 0V
OVSENS
PROG
CLPROG
OVP Connection Waveform
100
–15
= 2k
= 5V
= 2k
TEMPERATURE (°C)
200
10
I
LOAD
(DISCHARGING)
300
500μs/DIV
(mA)
I
IN
35
I
(CHARGING)
BAT
400
I
LOAD
I
BAT
60
500
3577 G34
3577 G37
600
3577 G31
85
STEP 5V/DIV
5V TO 10V
VOLTAGE
6.280
6.275
6.265
6.260
6.255
6.270
OVGATE
5V/DIV
5V/DIV
INPUT
90
85
80
75
70
65
60
55
50
V
OVP
BUS
–40
0
Rising Overvoltage Threshold
vs Temperature
LED Driver Effi ciency 10 LEDs
OVP Protection Waveform
2
–15
4
6
TEMPERATURE (°C)
10
8
I
LED
500μs/DIV
10
(mA)
12
35
14
16
60
T
A
18
3577 G38
3577 G35
3V
3.6V
4.2V
4.8V
5.5V
= 25°C unless otherwise specifi ed
3577 G32
20
85
STEP 5V/DIV
10V TO 5V
VOLTAGE
OVGATE
5V/DIV
5V/DIV
INPUT
V
90
85
80
75
70
65
60
55
50
12
10
OVP
BUS
8
6
4
2
0
0
OVGATE vs OVSENS
0
LED Driver Effi ciency 8 LEDs
OVSENS CONNECTED
TO INPUT THROUGH
6.2k RESISTOR
OVP Reconnection Waveform
2
4
2
6
INPUT VOLTAGE (V)
8
I
LED
500μs/DIV
10
4
(mA)
12
14
6
16
35773 G39
18
3577 G36
3V
3.6V
4.2V
4.8V
5.5V
3577fa
3577 G33
20
8