LTC4012IUF#PBF Linear Technology, LTC4012IUF#PBF Datasheet - Page 3

• Manufacturer Part Number: LTC4012IUF#PBF
• Description: IC BATT CHRGR MC HI-EFF 20-QFN
• Manufacturer: Linear Technology

Specifications of LTC4012IUF#PBF

• Function: Charge Management
• Battery Type: Multi-Chemistry
• Voltage - Supply: 6 V ~ 28 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 20-WFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

electrical characteristics
SYMBOL
Charge Voltage Regulation
V
I
R
I
V
Charge Current Regulation
I
A
V
V
V
Input Current Regulation
V
I
V
CLP Supply
OVR
V
V
I
Shutdown
V
V
V
V
temperature range, otherwise specifications are at T
VFB
LEAK-FBDIV
TOL
CLN
CLPO
TOL
BOV
I
CS-MAX
C10
REV
CL
ICL
UVLO
UV(HYST)
ACP
ACP(HYST)
IL
IH
ON
PARAMETER
V
V
FBDIV On Resistance
FBDIV Output Leakage Current
V
BAT Overvoltage Threshold
Charge Current Accuracy with R
6V < BAT < 18V (LTC4012)
6V < BAT < 15V (LTC4012-1, LTC4012-2)
Current Sense Amplifier Gain (PROG ∆I) with
R
6V < BAT < 15V (LTC4012-1, LTC4012-2)
Maximum Peak Current Sense Threshold Voltage
per Cycle (R
C/10 Indicator Threshold Voltage
Reverse Current Threshold Voltage
Current Limit Threshold
CLN Input Bias Current
ICL Indicator Threshold
Operating Voltage Range
CLP Undervoltage Lockout Threshold
UVLO Threshold Hysteresis
CLP Operating Current
AC Present Threshold Voltage
ACP Threshold Hysteresis Voltage
SHDN Input Voltage Low
SHDN Input Voltage High
BAT
FB
FB
IN
= 3.01k, 6V < BAT < 18V (LTC4012)
Input Bias Current
Overvoltage Threshold
Accuracy (See Test Circuits)
IN
= 3.01k)
IN
= 3.01k,
A
= 25°C. DCIN = 20V, BAT = 12V, GND = 0V unless otherwise noted. (Note 2)
The
CONDITIONS
LTC4012
LTC4012-1/LTC4012-2
FVS1 = 0V, FVS0 = 0V, I-Grade
FVS1 = 0V, FVS1 = 5V, I-Grade
FVS1 = 5V, FVS0 = 0V, I-Grade
FVS1 = 5V, FVS1 = 5V, I-Grade
V
I
SHDN = 0V, FBDIV = 0V
LTC4012
LTC4012-1/LTC4012-2, Relative to
Selected Output Voltage
R
V
V
PROG = 1.2V
ITH = 2V, C-Grade
ITH = 2V, I-Grade
ITH = 5V
PROG Falling
PROG Falling
CLP – CLN
CLN = CLP
(CLP – CLN) – V
CLP Increasing
CLP = 20V, No Gate Loads
DCIN – BAT, DCIN Rising
LOAD
FB
SENSE
SENSE
PROG
l
C-Grade
I-Grade
C-Grade
C-Grade
I-Grade
C-Grade
I-Grade
C-Grade
I-Grade
= 1.2V
denotes the specifications which apply over the full operating
= 100µA
= 26.7k
= 0mV, PROG = 1.2V
Step from 0mV to 5mV,
CL
LTC4012-1/LTC4012-2
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
–12.75
–1.15
–1.25
–1.35
1.235
–1.78
–0.5
–0.8
–1.0
–0.6
–0.8
–1.1
–9.5
4.65
MIN
103
140
125
340
180
350
300
1.4
–1
–4
–5
97
96
92
–8
6
–11.67
1.281
–1.66
±100
4.85
TYP
±20
106
195
325
400
253
100
100
200
500
200
85
–5
0
2
LTC4012/
–10.95
–1.54
MAX
1.15
1.25
1.35
1.32
5.25
190
109
250
265
430
460
295
103
104
108
650
700
300
0.5
0.8
1.0
0.6
0.8
1.1
9.5
–2
28
1
4
5
3
UNITS
4012fa

mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mA
mV
mV
mV
mV
nA
µA
µA
µA
nA
%
%
%
%
%
%
%
%
%
%
%
%
%
Ω
V
V
V
V