LTC4007EGN Linear Technology, LTC4007EGN Datasheet - Page 5

• Manufacturer Part Number: LTC4007EGN
• Description: IC BATT CHARGER CTRLR 4A 24SSOP
• Manufacturer: Linear Technology

Specifications of LTC4007EGN

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 6 V ~ 28 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SSOP (0.150", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TYPICAL PERFORMANCE CHARACTERISTICS
V
V
I
d
s
gs
= 0V
= 0A
350
300
250
200
150
100
= 0
50
0
0 0.1 0.2
TEST PERFORMED ON DEMOBOARD
V
CHARGER = ON
I
INFET Response Time to
Reverse Current
PWM Frequency vs Duty Cycle
CHARGE
IN
= 15VDC
I
PFET (5A/DIV)
d
PROGRAMMED CURRENT = 10%
= <10mA
(REVERSE) OF
DUTY CYCLE (V
0.3
DCIN = 15V
DCIN = 20V
DCIN = 24V
DCIN = 20V
V
1A Load Step
(Battery Not Present)
0.4
FLOAT
1.25μs/DIV
0.5
V
PFET = 1/2 Si4925DY
= 12.6V
CHARGE
V
V
CHARGER CURRENT (500mA/DIV)
OUTPUT VOLTAGE (5V/DIV)
gs
s
0.6
OUT
OF PFET (5V/DIV)
OF PFET (2V/DIV)
/V
0.7
= 12.6V
IN
)
0.8
0.9
4007 G01
4007 G04
1.0
V
1V/DIV
STATE
LOAD
–0.05
–0.10
–0.15
–0.20
–0.25
–0.30
–0.35
–0.40
–0.45
FLOAT
0.10
0.05
4007 G07
0
13
LOAD CURRENT = 1A, 2A, 3A
DCIN = 20V
V
Line Regulation
Disconnect/Reconnect Battery
(Load Dump)
FLOAT
15
DISCONNECT
= 12.6V (3C4C = GND, CHEM = OPEN)
17
3A STEP
1A STEP
19
VDCIN (V)
21
C3C4 = GND
3A STEP
23
1A STEP
RECONNECT
25
C3C4 = OPEN
40
35
30
25
20
15
10
5
0
27
0
Battery Leakage Current
vs Battery Voltage
VDCIN = 0V
29
4007 G02
4007 G05
5
31
BATTERY VOLTAGE (V)
10
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
–3.5
–4.0
–4.5
–5.0
15
0
0
DCIN = 20V
V
V
1A Load Step (Battery Present)
FLOAT
OUT
CHARGER CURRENT (1A/DIV)
OUTPUT VOLTAGE (500mV/DIV)
20
0.5 1.0
= 12.6V
vs I
3C4C = GND
3C4C = OPEN
25
OUTPUT CURRENT (A)
OUT
1.5
4007 G08
30
2.0
LTC4007
2.5
3.0
3.5
4.0
4007 G03
4007 G06
4007fc
5
4.5