A8513 ALLEGRO [Allegro MicroSystems], A8513 Datasheet - Page 5

• Manufacturer Part Number: A8513
• Description: Wide Input Voltage Range, High Efficiency Fault Tolerant LED Driver
• Manufacturer: ALLEGRO [Allegro MicroSystems]

A8513
ELECTRICAL CHARACTERISTICS
operating temperature range with T
Continued on the next page…
Input Voltage Specifications
Operating Input Voltage Range
VIN Pin UVLO Start Threshold
VIN Pin UVLO Stop Threshold
VIN Pin UVLO Hysteresis
Input Current
Input Quiescent Current
Input Sleep Supply Current
Input Logic Levels (EN/PWM and ¯ F ¯ ¯ A ¯ ¯ ¯ U ¯ ¯ L ¯ ¯ T ¯
Input logic Level (Low)
Input logic Level (High)
EN/PWM Pull-Down Resistor
¯ F ¯ ¯ A ¯ ¯ ¯ U ¯ ¯ L ¯ ¯ T ¯ Pin Pull-Down Voltage
¯ F ¯ ¯ A ¯ ¯ ¯ U ¯ ¯ L ¯ ¯ T ¯ Pin Leakage Current
Error Amplifier
Open Loop Voltage Gain
Transconductance
Source Current
Sink Current
COMP Pin Pull-Down Resistance
Output Overvoltage Protection
Overvoltage Protection Threshold
OVP Pin Leakage Current
OVP Pin Undervoltage Threshold
Secondary Overvoltage Protection
BOOST Switch
Switch On-Resistance
Switch Leakage Current
Switch Current Limit
Secondary Switch Current Limit
Minimum Switch On-Time
Minimum Switch Off-Time
Characteristics
A
= T
R
V
V
V
V
R
Symbol
V
I
I
I
t
I
I
V
I
SW(LIM2)
t
V
FAULTlkg
EA(SINK)
R
SW(OFF)
EA(SRC)
OVPHI(th)
DS(on)SW
QSLEEP
SW(LIM)
UVLOrise
UVLOhys
OVP(sec)
SW(ON)
UVLOfall
EN/PWM
I
I
A
UVP(th)
SWlkg
3
OVPH
J
FAULT
V
V
COMP
V
g
1
)
I
VOL
= –40ºC to125 ºC, typical specifications are at T
Q
IN
IH
m
IL
Valid at V
V
V
EN/PWM = V
VIN = 16 V, EN/PWM = 0 V
5 V < V
5 V < V
EN/PWM = 5 V
V
ΔI
V
V
Measured at OVP Pin
Standard CMOS input, measured at
V
Measured at OVP Pin
Measured at SW Pin
I
V
between –40ºC and 85ºC
V
Higher than I
A8513 latches when detected
I
¯ F ¯ ¯ A ¯ ¯ ¯ U ¯ ¯ L ¯ ¯ T ¯ asserted
SW
FAULT
IN
IN
FAULT
COMP
COMP
OVP
SW
SW
COMP
Wide Input Voltage Range, High Efficiency
rising
falling
= 750 mA, V
IN
= 16 V, EN/PWM = V
= 16 V, EN/PWM = V
= 1.2 V
= 16 V, T
= 0.5 mA
= 1.5 V
= 1.5 V
= 5 V
IN
IN
= ±10 μA
< 40 V
< 40 V
SW(LIM)
IH
, SW = 2 MHz, no load
Test Conditions
IN
A
= 25ºC,
= 16 V
(max) in all conditions,
IL
IL
, T
, T
A
A
indicates specifications guaranteed through the full
= T
= T
J
J
= 125ºC
Fault Tolerant LED Driver
A
= 25ºC; unless otherwise specified
1.168
Min.
4.5
1.5
1.9
53
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
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−
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−
−
−
−
−
−
−
−
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−
−
−
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−
3
−
−
1.218
–360
2000
Typ.
55.5
450
100
990
360
450
0.1
2.2
3.5
45
10
75
55
−
−
−
5
1
−
−
−
−
−
−
1.268
Max.
4.35
3.90
4.64
400
100
800
100
110
0.4
2.8
40
10
58
85
−
−
−
−
1
−
−
−
−
−
1
−
μA/V
Unit
mΩ
mV
mA
mV
mV
kΩ
dB
μA
μA
μA
μA
nA
uA
uA
ns
ns
Ω
V
V
V
V
V
V
V
A
A
5