Electrical Characteristics Table; General Specifications - Allegro MicroSystems A8600 Manual

A8600
ELECTRICAL CHARACTERISTICS
unless otherwise specified
Characteristic

GENERAL SPECIFICATIONS

Input Supply Current
Input Supply Current 1
Input Supply Current, PFM 1,3
(Using components shown in Typical
Application Circuit diagram and
table 3.)
Internal Oscillator Frequency
LX1/2/3/4 Switching Frequency
EN/SYNC Synchronization Timing
Synchronization Input Frequency
Synchronization Input Duty Cycle
EN/SYNC Input
EN/SYNC Pin High Threshold
EN/SYNC Pin Low Threshold
EN/SYNC Hysteresis
EN/SYNC Input Resistance
EN/SYNC Turn-Off Delay
VREG Output and BIAS Input
VREG Output Voltage
VREG (REGOK rising)
VREG (BIAS switch Off and POR)
BIAS Switch Turn-On Threshold
Bias Switch Voltage Drop
BIAS Input Voltage Range
Power OK (POK)
POK Low Condition Output Voltage
POK Leakage 1
Continued on the next page...
Quadruple Output Regulator with Two High-Side Switches,
BU/ACC Voltage Detectors, and Mute Delay
Valid at 5.5 V ≤ V ≤ 26 V, –40°C ≤ T
INx
Symbol Test Conditions
I V > 3.2 V, I
IN1 BIAS SW1
V = 12 V, V
IN1 SW1
I
LO_IQ0
BUO and ACCO open, I
V = 12 V, V
IN1 SW1
I
LO_IQ1
BUO and ACCO open, I
V = 12 V, V
IN1 SW1
I
LO_IQ2
BUO and ACCO open, I
f
OSC
f
SYNC
D
SYNC
3.0 V < V < 3.6 V, V
BIAS
V
ENIH
4.5 V < V < 5.5 V, V
BIAS
3.0 V < V < 3.6 V, V
BIAS
V
ENIL
4.5 V < V < 5.5 V, V
BIAS
3.0 V < V < 3.6 V, V
BIAS
V
ENHYS
4.5 V < V < 5.5 V, V
BIAS
R
ENIN
Measured from EN/SYNC pulled low to
t
dOFF
SW2/3/4, S1/2, and TSD turned off
Measured from EN/SYNC pulled low or TSDH
t
dLo_IQ
going high to SW1 entering Low IQ mode
V V = 0 V
VREG BIAS
V V rising
REGPORHI VREG
V V falling
REGPORLO VREG
V V − V
BIAS(TH) BIAS VREG
V V − V
BIASSW BIAS VREG
V
BIAS
V I = 3 mA
POKO(L) POK
I V = 5.0 V
POK(LKG) POKO
≤ 125ºC, –40°C ≤ T
A
= 0 mA
= 3.3 V, V ≤ 0.4 V,
EN/SYNC
= 40 µA, T = 25ºC
SW1 A
= 5.0 V, V ≤ 0.4 V,
EN/SYNC
= 200 µA, T = 25ºC
SW1 A
= 6.5 V, V ≤ 0.4 V,
EN/SYNC
= 1 mA, T = 25ºC
SW1 A
rising
EN/SYNC
rising
EN/SYNC
falling
EN/SYNC
falling
EN/SYNC
– V
ENIH ENIL
– V
ENIH ENIL
≤ 125ºC;
J
Min. Typ. Max.
− 7.5 10
− − 50
− − 250
− − 750
360 425 490
325 − 525
45 50 55
− − 2.0
− − 2.6
0.8 − −
1.2 − −
− 200 −
− 400 −
120 200 280
− 15 −
− 2048 −
2.95 3.05 3.175
2.86 2.93 2.98
2.85 2.90 2.96
−3 10 20
− 45 70
3.2 − 5.5
− − 300
−1 − 1
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Unit
mA
µA
µA
µA
kHz
kHz
%
V
V
V
V
mV
mV
kΩ
PWM
cycles
PWM
cycles
V
V
V
mV
mV
V
mV
µA
9