Datasheet

LTC3300-1
8
33001fb
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Peak Current Sense Threshold
vs Temperature
Zero Current Sense Threshold
vs Temperature
Primary Winding Switch Maximum
On-Time vs Temperature
Secondary Winding Switch
Maximum On-Time vs Temperature
Maximum On-Time
vs R
TONP
, R
TONS
Watchdog Timer Timeout Period
vs Temperature
V
RTONP
, V
RTONS
vs External Resistance WDT Pin Current vs Temperature WDT Pin Current vs R
TONS
R
TONP
, R
TONS
RESISTANCE (kΩ)
1
1.164
V
RTONP
, V
RTONS
(V)
1.176
1.188
1.200
1.212
1.236
10 100
33001 G10
1.224
V
RTONS
V
RTONP
T
A
= 25°C
TEMPERATURE (°C)
–50
65
I
WDT
(µA)
70
75
80
85
–25 0 25 50
33001 G11
75 100 125 150
R
TONS
= 15k
BALANCING
WDT = 0.5V
SECONDARY OV
WDT = 2V
R
TONS
(kΩ)
5
0
I
WDT
(µA)
40
80
120
160
15 25
35
45
33001 G12
200
240
10 20
30
40
T
A
= 25°C
BALANCING
WDT = 0.5V
SECONDARY OV
WDT = 2V
TEMPERATURE (°C)
–50
V
PEAK_P
, V
PEAK_S
(mV)
51
53
55
25 75 150
33001 G13
49
47
45
–25 0
50
100 125
V
CELL
= 3.6V
RANDOM CELL SELECTED
PRIMARY
SECONDARY
TEMPERATURE (°C)
–50
–10.0
V
ZERO_P
, V
ZERO_S
(mV)
–7.5
–5.0
–2.5
0
0 50
100
150
33001 G14
2.5
5.0
–25 25
75
125
V
CELL
= 3.6V
RANDOM CELL SELECTED
PRIMARY
SECONDARY
TEMPERATURE (°C)
–50
6.0
t
ONP(MAX)
(µs)
6.4
6.8
7.2
7.6
0 50
100
150
33001 G15
8.0
8.4
–25 25
75
125
R
TONP
= 20k
V
CELL
= 3.6V
TEMPERATURE (°C)
–50
1.0
t
ONS(MAX)
(µs)
1.1
1.2
1.3
1.4
–25 0 25 50
33001 G16
75 100 125 150
R
TONS
= 15k
R
TONP
, R
TONS
(kΩ)
5
0
t
ONP(MAX)
,t
ONS(MAX)
(µs)
2
6
8
10
20
14
15
25
30
33001 G17
4
16
18
12
10 20
35
40
45
T
A
= 25°C
PRIMARY
SECONDARY
TEMPERATURE (°C)
–50
1.35
t
WD1
(SECONDS)
1.40
1.45
1.50
1.55
0 50
100
150
33001 G18
1.60
1.65
–25 25
75
125
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C unless otherwise specified.