LTC4012CUF-3#TRPBF Linear Technology, LTC4012CUF-3#TRPBF Datasheet - Page 6

• Manufacturer Part Number: LTC4012CUF-3#TRPBF
• Description: IC BATT CHRGR MC HI-EFF 20-QFN
• Manufacturer: Linear Technology

Specifications of LTC4012CUF-3#TRPBF

• Function: Charge Management
• Battery Type: Multi-Chemistry
• Voltage - Supply: 6 V ~ 28 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-WFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LTC4012-3
Typical perForMance characTerisTics
(T

A
= 25°C unless otherwise noted. L = IHLP-2525 6.8µH)
2A/DIV
1V/DIV
1V/DIV
5V/DIV
PROG
SHDN
I
–0.5
CHG
ITH
–1
–2
–3
–5
–4
–6
3.5
3.0
2.5
2.0
1.5
1.0
0.5
2
1
0
0
11.0
0
Charge Current Accuracy
Charge Current Load Regulation
PWM Soft-Start
DCIN = 20V
R
R
SENSE
IN
2
= 3.01k
I
I
I
4
11.4
CHG
CHG
CHG
= 33m
6
= 3A
= 2A
= 1A
TIME (500µs/DIV)
8
DCIN = 12V
R
11.8
PROG
10
BAT (V)
BAT (V)
12
= 26.7k
12.2
14
R
R
16 18
DCIN = 24V
R
SENSE
IN
PROG
= 3.01k
12.6
= 33m
20
= 35.7k
4012-3 G07
4012-3 G11
4012-3 G09
22
13.0
24
–0.1
–0.2
–0.3
–0.4
–0.5
–0.5
–1.0
0.1
0.5
0.4
0.3
0.2
2.5
2.0
1.0
0.5
3.0
1.5
0
0
Charge Current Line Regulation
5
Input Current Limit
0
Gate Drive Non-Overlap
BAT = 6V
R
R
2.5A BULK CHARGE
2.1A INPUT CURRENT LIMIT
SENSE
IN
= 3.01k
0.5
I
I
= 33m
CHG
CHG
10
I
CHG
= 2A
= 3A
SYSTEM LOAD (A)
TIME (80ns/DIV)
1.0
= 1A
ICL STATE
DCIN (V)
BGATE
I
TGATE
CHG
15
I
IN
1.5
20
2.0
4012-3 G08
4012-3 G12
4012-3 G10
25
2.5
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