LTC1955EUH Linear Technology, LTC1955EUH Datasheet - Page 5

• Manufacturer Part Number: LTC1955EUH
• Description: IC INTERFACE DL SMART CARD 32QFN
• Manufacturer: Linear Technology

Specifications of LTC1955EUH

• Controller Type: Smart Card Interface
• Interface: 4-Wire Serial
• Voltage - Supply: 1.7 V ~ 5.5 V
• Current - Supply: 10µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-QFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TYPICAL PERFORMANCE CHARACTERISTICS
600
500
400
300
200
100
180
160
140
120
100
80
10
9
8
7
6
5
4
3
2
1
0
0
10μ
–40
2.7
No Load Supply Current vs V
V
Threshold vs Temperature
V
[I
vs Load Current
V
T
T
I
V
V
CCA
CCX
BATT
BATT
BATT
A
A
BATT
CPO
= 25°C
= 25°C
3.1
= I
= 5.75V
Overcurrent Shutdown
= 3.1V
= 3.3V
–15
Quiescent Current
– 2 (I
100μ
CCB
3.5
SUPPLY VOLTAGE (V)
= 0μA
TEMPERATURE (°C)
LOAD CURRENT (A)
V
V
CCA
CCA
CCA
10
3.9
V
V
V
1m
+ I
= V
= 1.8V, V
CCX
CCX
CCX
CCB
CCB
4.3
= 1.8V
= 3V
= 5V
35
= 5V
)]
CCB
10m
4.7
= 0V
60
5.1
BATT
100m
1955 G07
1955 G01
1955 G04
5.5
85
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
60
55
50
45
40
35
30
25
0
–40
2.7
2.7
I/O X Short-Circuit Current
vs Temperature
Card Detection Debounce Time
vs V
V
vs Supply Voltage
DV
V
V
BATT
CCX
DVCC
CC
3.1
3.1
BATT
= 5V
= V
–15
Shutdown Current
= V
V
V
BATT
BATT
BATT
BATT
3.5
Supply Voltage
3.5
TEMPERATURE (°C)
= 5.5V
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
10
3.9
3.9
T
A
= 25°C
4.3
4.3
35
T
T
T
A
A
A
T
T
A
A
= 85°C
= 25°C
= –40°C
4.7
4.7
= –40°C
= 85°C
60
5.1
5.1
1955 G02
1955 G08
1955 G05
5.5
5.5
85
0.16
0.14
0.12
0.10
0.08
0.06
7.0
6.5
6.0
5.5
5.0
4.5
1.0
0.8
0.6
0.4
0.2
0
–40
–40
2.7
Charge Pump Open-Loop Output
Resistance vs Temperature
(2V
Bidirectional Channel (I/O A, I/O B)
Low Output Level vs Temperature
DV
vs Supply Voltage
V
V
V
I
V
V
OL
DATA
BATT
IN
CPO
DVCC
CC
IN
= –1mA
= 2.7V
3.1
= 4.9V
–15
–15
= 2.7V
Shutdown Current
= 0V
– V
= V
V
DVCC
BATT
3.5
CPO
TEMPERATURE (°C)
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
) / I
10
10
3.9
LOAD(MAX)
LTC1955
4.3
V
V
V
35
35
CCX
CCX
CCX
T
T
A
A
= –40°C
= 25°C, 85°C
= 1.8V
= 3V
= 5V
4.7
60
60
5.1
1955 G03
1955 G09
1955fb
1955 G06
5
85
85
5.5