Datasheet

LTC1696
2
Supply Voltage (V
CC
) ............................................... 28V
Input Voltage
FB1, FB2 ............................................... –0.3V to 17V
TIMER/RESET .......................................–0.3V to 17V
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
ORDER PART NUMBER
T
JMAX
= 125°C, θ
JA
= 256°C/W
LTC1696ES6
(Note 1)
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. 2.7V ≤ V
CC
≤ 27V (Notes 3, 4) unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CC
Supply Voltage Range Operating Range ● 2.7 27 V
I
VCC
Standby Supply Current FB1, FB2 < V
FB
● 170 540 µA
Active Supply Current FB1, FB2 > V
FB
, C
OUT
= 1000pF ● 1.1 3.5 mA
V
FB
FB1, FB2 Feedback Threshold Voltage Going Positive T
A
≥ 0°C ● 0.862 0.880 0.898 V
T
A
< 0°C ● 0.853 0.880 0.907 V
I
FB
FB1, FB2 Input Current ● –1 –0.05 µA
V
FBHST
FB1, FB2 Feedback Hysteresis High-to-Low Transition 12 mV
V
LKO
V
CC
Undervoltage Lockout FB1, FB2 > V
FB
Low-to-High Transition ● 1.75 2.05 2.35 V
High-to-Low Transition
● 1.64 1.94 2.24 V
V
LKH
V
CC
Undervoltage Lockout Hysteresis FB1, FB2 > V
FB
110 mV
V
RST
TIMER/RESET Reset Low Threshold FB1, FB2 > V
FB
● 0.78 0.865 0.95 V
V
TIM
TIMER/RESET Timer High Threshold FB1, FB2 > V
FB
● 1.11 1.185 1.26 V
V
TRIG
TIMER/RESET External Trigger High FB1, FB2 < V
FB
● 1.35 1.50 1.65 V
Threshold
I
TRIG
TIMER/RESET External Trigger High FB1, FB2 < V
FB
, TIMER/RESET = V
TRIG
● 260 650 µA
Current
I
TIM
TIMER/RESET Timer Current FB1 = (V
FB
+ 30mV), FB2 < V
FB
● 41022 µA
FB1 = (V
FB
+ 200mV), FB2 < V
FB
● 51226 µA
FB2 = (V
FB
+ 30mV), FB1 < V
FB
● 41022 µA
FB2 = (V
FB
+ 200mV), FB1 < V
FB
● 51226 µA
FB1, FB2 = (V
FB
+ 200mV) ● 81840 µA
V
OUTH
OUT High Voltage 12V ≤ V
CC
≤ 27V, FB1, FB2 > V
FB
, C
OUT
= 1000pF ● 4.8 6.3 8.0 V
V
CC
= 3.3V, FB1, FB2 > V
FB
, C
OUT
= 1000pF ● 2.7 3.2 3.3 V
V
OUTL
OUT Low Voltage FB1, FB2 < V
FB
, I
SINK
= 1mA, V
CC
= 3.3V ● 0.45 V
t
OVPD1
OUT Propagation Delay for FB1 FB1 > V
FB
, FB2 < V
FB
, TIMER/RESET = Open, ● 728 µs
C
OUT
= 1000pF
t
OVPD2
OUT Propagation Delay for FB2 FB2 > V
FB
, FB1 < V
FB
, TIMER/RESET = Open, ● 728 µs
C
OUT
= 1000pF
S6 PART MARKING
LTLT
Consult LTC Marketing for parts specified with wider operating temperature
ranges.
ABSOLUTE AXI U RATI GS
WWWU
PACKAGE/ORDER I FOR ATIO
UU
W
ELECTRICAL CHARACTERISTICS
FB1 1
GND 2
V
CC
3
6
5 FB2
4 OUT
TOP VIEW
TIMER/
RESET
S6 PACKAGE
6-LEAD PLASTIC SOT-23