LTC4008EGN-1#PBF Linear Technology, LTC4008EGN-1#PBF Datasheet - Page 5

• Manufacturer Part Number: LTC4008EGN-1#PBF
• Description: IC BATT CHARGER CTRLR 4A 20SSOP
• Manufacturer: Linear Technology

Specifications of LTC4008EGN-1#PBF

• Function: Charge Management
• Battery Type: Multi-Chemistry
• Voltage - Supply: 6 V ~ 28 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP (0.200", 5.30mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TYPICAL PERFORMANCE CHARACTERISTICS
V
V
I
d
s
gs
–0.02
–0.04
–0.06
–0.08
–0.10
= 0V
= 0A
0.02
350
300
250
200
150
100
= 0
50
0
0
0 0.1 0.2
TEST PERFORMED ON DEMOBOARD
V
CHARGER = ON
I
BATMON Offset
3
INFET Response Time to
Reverse Current
PWM Frequency vs Duty Cycle
CHARGE
BATMON LOAD = 100kΩ
IN
= 15VDC
I
PFET (5A/DIV)
d
PROGRAMMED CURRENT = 10%
= <10mA
(REVERSE) OF
8
DUTY CYCLE (V
BATTERY VOLTAGE (V)
0.3
DCIN = 15V
DCIN = 20V
DCIN = 24V
0.4
1.25μs/DIV
13
0.5
V
INFET = 1/2 Si4925DY
CHARGE
V
V
gs
s
0.6
OUT
OF PFET (5V/DIV)
OF PFET (2V/DIV)
/V
0.7
= 12.6V
18
IN
DCIN = 15V
DCIN = 20V
DCIN = 24V
)
0.8
0.9
4008 G01
4008 G05
4008 G03
23
1.0
1V/(DIV)
V
STATE
–0.05
–0.10
–0.15
–0.20
FLOAT
LOAD
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
–3.5
–4.0
–4.5
–5.0
0.05
0
0
(T
6
0
V
Disconnect/Reconnect Battery
(Load Dump)
LOAD CURRENT = 1A, 2A, 3A
DCIN = 20V
V
V
A
DCIN = 20V
V
FLOAT
FB
OUT
BAT
= 25°C unless otherwise noted)
0.5 1.0
vs DCIN
DISCONNECT
= 12.6V
vs I
= 12.6V
11
3A STEP
1A STEP
OUT
OUTPUT CURRENT (A)
1.5
16
DCIN (V)
2.0
3A STEP
2.5
RECONNECT
1A STEP
21
3.0
3.5
26
4.0
4008 G02
4008 G04
4008 G06
LTC4008
4.5
4008fb
5