A8514KLPTR-T Allegro Microsystems Inc, A8514KLPTR-T Datasheet - Page 5

• Manufacturer Part Number: A8514KLPTR-T
• Description: IC LED DVR WHT 4X80MA 16-ETSSOP
• Manufacturer: Allegro Microsystems Inc

Specifications of A8514KLPTR-T

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

A8514
ELECTRICAL CHARACTERISTICS
characterization over the full operating temperature range with T
Continued on the next page…
Input Voltage Specifications
Operating Input Voltage Range
UVLO Start Threshold
UVLO Stop Threshold
UVLO Hysteresis
Input Currents
Input Quiescent Current
Input Sleep Supply Current
Input Logic Levels (PWM/EN and APWM)
Input Logic Level-Low
Input Logic Level-High
PWM/EN Pin Open Drain
Pull-down Resistor
APWM Pull-down Resistor
APWM
APWM Frequency
Error Amplifier
Open Loop Voltage Gain
Transconductance
Source Current
Sink Current
COMP Pin Pull-down Resistance
Overvoltage Protection
Overvoltage Threshold
OVP Sense Current
OVP Leakage Current
Secondary Overvoltage Protection
Boost Switch
Switch On-Resistance
Switch Leakage Current
Switch Current Limit
Secondary Switch Current Limit
Soft Start Boost Current Limit
Minimum Switch On-Time
Minimum Switch Off-Time
Characteristics
2
2
3
2
t
t
V
I
SWOFFTIME
V
V
SWONTIME
Symbol
V
R
I
SWSS(LIM)
I
I
I
V
I
I
SW(LIM2)
R
EA(SINK)
R
I
UVLOHYS
EA(SRC)
OVPLKG
QSLEEP
SW(LIM)
UVLOrise
f
OVP(sec)
UVLOfall
I
SWLKG
PWMEN
APWM
A
OVP(th)
R
OVPH
APWM
V
V
COMP
V
g
1,2
I
VOL
SW
Q
IN
IH
m
IL
Valid at V
V
V
PWM/EN = V
V
V
V
PWM/EN = 5 V
PWM/EN = V
V
ΔI
V
V
¯ F ¯ ¯ A ¯ U ¯ ¯ L ¯ ¯ T ¯ = 0
OVP connected to V
R
I
V
Higher than I
device latches when detected
Initial soft start current for boost switch
SW
IN
IN
IN
IN
IN
IH
COMP
COMP
SW
OVP
COMP
Wide Input Voltage Range, High Efficiency
rising
falling
= 16 V, V
throughout operating input voltage range
throughout operating input voltage range
= 2 V, V
= 0.750 A, V
= 16 V, PWM/EN = V
= 40.2 kΩ, V
IN
= 1.5 V
= 1.5 V
= ±10 μA
= 16 V, T
IL
PWMEN
SW(LIM)
IH
IH
= 0 V
; SW = 2 MHz, no load
Test Conditions
IN
A
IN
A
= 16 V
= T
(max) for all conditions,
= V
= 25°C,
OUT
= 16 V, PWM/EN = V
J
FSETSYNC
= –40°C to 125°C; unless otherwise noted
IL
indicates specifications guaranteed by design and
= 0 V
Fault Tolerant LED Driver
IL
Min.
300
750
188
1.5
7.7
3.0
60
60
20
44
53
75
60
30
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
5
−
−
−
−
–
−
−
−
−
−
−
−
–350
2000
Typ.
7.00
450
100
100
990
350
199
300
700
5.5
8.1
0.1
0.1
3.5
48
55
85
47
–
–
–
2
–
–
−
1000
1220
Max.
4.35
3.90
10.0
600
400
140
140
210
600
111
8.5
4.2
40
10
52
58
68
–
−
−
−
−
−
1
1
μA/V
Unit
kHz
mΩ
mV
mA
mV
mA
kΩ
kΩ
dB
μA
μA
μA
μA
μA
μA
ns
ns
Ω
V
V
V
V
V
V
A
A
5