Datasheet

LM3402, LM3402HV
www.ti.com SNVS450E –SEPTEMBER 2006–REVISED MAY 2013
ELECTRICAL CHARACTERISTICS LM3402
V
IN
= 24V unless otherwise indicated. Typicals and limits appearing in plain type apply for T
A
= T
J
= +25°C.
(1)
Limits
appearing in boldface type apply over full Operating Temperature Range. Datasheet min/max specification limits are ensured
by design, test, or statistical analysis.
Symbol Parameter Conditions Min Typ Max Units
SYSTEM PARAMETERS
t
ON-1
On-time 1 V
IN
= 10V, R
ON
= 200 kΩ 2.1 2.75 3.4 µs
t
ON-2
On-time 2 V
IN
= 40V, R
ON
= 200 kΩ 490 650 810 ns
(1) Typical specifications represent the most likely parametric norm at 25°C operation.
ELECTRICAL CHARACTERISTICS LM3402HV
Symbol Parameter Conditions Min Typ Max Units
SYSTEM PARAMETERS
t
ON-1
On-time 1 V
IN
= 10V, R
ON
= 200 kΩ 2.1 2.75 3.4 µs
t
ON-2
On-time 2 V
IN
= 70V, R
ON
= 200 kΩ 290 380 470 ns
ELECTRICAL CHARACTERISTICS LM3402/LM3402HV
Symbol Parameter Conditions Min Typ Max Units
REGULATION AND OVER-VOLTAGE COMPARATORS
V
REF-REG
CS Regulation Threshold CS Decreasing, SW turns on 194 200 206 mV
V
REF-0V
CS Over-voltage Threshold CS Increasing, SW turns off 300 mV
I
CS
CS Bias Current CS = 0V 0.1 µA
SHUTDOWN
V
SD-TH
Shutdown Threshold R
ON
/ SD Increasing 0.3 0.7 1.05 V
V
SD-HYS
Shutdown Hysteresis R
ON
/ SD Decreasing 40 mV
OFF TIMER
t
OFF-MIN
Minimum Off-time CS = 0V 300 ns
INTERNAL REGULATOR
V
CC-REG
V
CC
Regulated Output 6.6 7 7.4 V
V
IN-DO
V
IN
- V
CC
Dropout I
CC
= 5 mA, 6.0V < V
IN
< 8.0V 300 mV
V
CC-BP-TH
V
CC
Bypass Threshold V
IN
Increasing 8.8 V
V
CC-BP-HYS
V
CC
Bypass Hysteresis V
IN
Decreasing 225 mV
V
CC-Z-6
V
CC
Output Impedance V
IN
= 6V 55 Ω
(0 mA < I
CC
< 5 mA)
V
CC-Z-8
V
IN
= 8V 50
V
CC-Z-24
V
IN
= 24V 0.4
V
CC-LIM
V
CC
Current Limit (Note 3) V
IN
= 24V, V
CC
= 0V 16 mA
V
CC-UV-TH
V
CC
Under-voltage Lock-out Threshold V
CC
Increasing 5.25 V
V
CC-UV-HYS
V
CC
Under-voltage Lock-out Hysteresis V
CC
Decreasing 150 mV
V
CC-UV-DLY
V
CC
Under-voltage Lock-out Filter Delay 100 mV Overdrive 3 µs
I
IN-OP
I
IN
Operating Current Non-switching, CS = 0V 600 900 µA
I
IN-SD
I
IN
Shutdown Current RON / SD = 0V 90 180 µA
CURRENT LIMIT
I
LIM
Current Limit Threshold 530 735 940 mA
DIM COMPARATOR
V
IH
Logic High DIM Increasing 2.2 V
V
IL
Logic Low DIM Decreasing 0.8 V
I
DIM-PU
DIM Pull-up Current DIM = 1.5V 75 µA
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