LTC3901 Linear Technology, LTC3901 Datasheet - Page 2

• Manufacturer Part Number: LTC3901
• Description: Secondary Side Synchronous Driver for Push-Pull and Full-Bridge Converters
• Manufacturer: Linear Technology

ABSOLUTE AXI U RATI GS
LTC3901
(Note 1)
Supply Voltage
Input Voltage
Input Current
Operating Temperature Range (Note 2) ...–40°C to 85°C
Storage Temperature Range ..................–65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
temperature range.
SYMBOL
V
V
I
Timer
V
I
t
V
Current Sense (Note 5)
I
I
V
V
SYNC Input
I
V
V
Driver Output
R
R
I
2
ELECTRICAL CHARACTERISTICS
VCC
TMR
TMRDIS
CS
CS
SYNC
PK
CC
UVLO
TMR
TMRMAX
CSMAX
CS
SYNCP
SYNCN
ONH
ONL
+
–
V
CSE
SYNC ...................................................... –12V to 12V
CSE
CC
, PV
–
+
, CSF
, CSF
CC ............................................................................
–
+ .....................................................................
, TIMER ................. –0.3V to (V
PARAMETER
Supply Voltage Range
V
V
V
Timer Threshold Voltage
Timer Input Current
Timer Discharge Time
Timer Pin Clamp Voltage
CS
CS
CS
Current Sense Threshold Voltage
SYNC Input Current
SYNC Input Positive Threshold
SYNC Positive Input Hysteresis
SYNC Input Negative Threshold
SYNC Negative Input Hysteresis
Driver Pull-Up Resistance
Driver Pull-Down Resistance
Driver Peak Output Current
CC
CC
CC
W
+
–
+
V
Undervoltage Lockout Threshold
Undervoltage Lockout Hysteresis
Supply Current
Input Current
Input Current
Pin Clamp Voltage
CC
= 5V, T
W W
A
= 25
°
C unless otherwise specified. (Note 3)
U
CC
CONDITIONS
Rising Edge
Rising Edge to Falling Edge
V
f
V
C
C
V
V
I
V
(Note 6)
V
(Note 7)
(Note 7)
I
I
(Note 7)
SYNC
IN
OUT
OUT
SYNC
TMR
TMR
TMR
CS
CS
CS
SYNC
+ 0.3V)
= 5mA, Driver Off
+ = 0V
– = 0V
– = 0V
15mA
= –100mA
= 100mA
The
= 100kHz, C
= 0V
= 1000pF, R
= 1000pF, R
= 0V
= ±10V
12V
●
denotes specifications which apply over the full operating
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ME
TMR
TMR
= C
TIMER
PGND
CSE
= 4.7k
= 4.7k
PV
CSE
GND
16-LEAD NARROW PLASTIC SSOP
ME
ME
MF
CC
T
–
+
JMAX
= 4700pF (Note 4)
1
2
3
4
5
6
7
8
= 125°C, θ
GN PACKAGE
TOP VIEW
JA
= 130°C/W
16
15
14
13
12
11
10
9
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
V
MF
MF
PGND
CSF
CSF
GND
SYNC
CC
–
+
–10%
–1.8
MIN
4.5
7.5
1.0
3
U
V
10.5
–1.4
TYP
ORDER PART
LTC3901EGN
4.1
0.5
0.5
2.5
1.4
0.2
0.2
0.9
0.8
CC
–6
40
11
±1
5
7
2
MARKING
/5
NUMBER
GN PART
3901
W
MAX
10%
13.5
–1.0
–10
120
±10
4.5
1.8
1.2
1.6
1.2
1.6
11
15
±1
±1
18
1
UNITS
U
3901f
mA
mA
mV
mV
µA
µA
µA
µA
ns
Ω
Ω
V
V
V
V
V
V
V
V
V
V
A