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

• 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

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
R
I
I
I
I
I
temperature range, otherwise specifications are at T
VFB
LEAK-FBDIV
TOL
CLN
CLPO
CLPS
LEAK-BAT
LEAK-CSN
LEAK-CSP
LEAK-SW
TOL
BOV
I
CS-MAX
C10
REV
CL
ICL
UVLO
UV(HYST)
IL
IH
ON
IN
PARAMETER
V
V
FBDIV On Resistance
FBDIV Output Leakage Current
V
Charge Current Accuracy with R
6V < BAT < 18V
Current Sense Amplifier Gain (PROG ∆I) with
R
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
SHDN Input Voltage Low
SHDN Input Voltage High
SHDN Pull-Down Resistance
CLP Shutdown Current
BAT Leakage Current
CSN Leakage Current
CSP Leakage Current
SW Leakage Current
BAT
FB
FB
IN
= 3.01k, 6V < BAT < 18V
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
V
I
SHDN = 0V, FBDIV = 0V
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
CLP = 12V, DCIN = 0V
SHDN = 0V
SHDN = 0V or DCIN = 0V,
0V ≤ CSP = CSN = BAT ≤ 18V
SHDN = 0V or DCIN = 0V,
0V ≤ CSP = CSN = BAT ≤ 20V
SHDN = 0V or DCIN = 0V,
0V ≤ CSP = CSN = BAT ≤ 20V
SHDN = 0V or DCIN = 0V,
0V ≤ SW ≤ 20V
LOAD
FB
SENSE
SENSE
PROG
l
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
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
–12.75
1.235
–1.78
–0.5
–0.8
–1.0
–9.5
4.65
–1.5
–1.5
–1.5
MIN
140
125
340
180
1.4
–1
–4
–5
97
96
92
–8
–1
6
–11.67
1.281
–1.66
±100
LTC4012-3
4.85
TYP
±20
195
325
400
253
100
100
200
350
–5
85
40
15
0
2
0
0
0
0
–10.95
–1.54
MAX
1.32
5.25
190
250
265
430
460
295
103
104
108
300
500
0.5
0.8
1.0
9.5
1.5
1.5
1.5
–2
28
26
1
4
5
3
2
UNITS
40123fb

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