L5994_02 Datasheet, PDF (5/26 Pages) STMicroelectronics – ADJUSTABLE TRIPLE OUTPUT POWER SUPPLY CONTROLLER

ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
V_OL Output low voltage
HSTRAP = PREG5
I_source = 10mA;
HSOURCE = GND
LINEAR REGULATOR DRIVER SECTION
I_max Driver current
VFBLIN < 2.5V
V_ref VFBLIN threshold
VDRLIN = 15V
V_DRLIN Input voltage range
I_FBLIN Bias Current
V_CP Input voltage clamp
I_clamp = 100µA
“One Shot” activation
threshold (L5994A only)
VDRLIN falling
“One Shot” Pulse (L5994A only)
INTERNAL REGULATOR DRIVER SECTION
V₂₉ VREG5 output voltage
V_in = 7 to 25V
I₂₉ Totale current capability
V_PREG5 = 5.3V
V_in = 7V
V_5SW Swith-over threshold voltage
V_in > 7V, V_5SW fall
V₁₂ Reference voltage
I_load = 1mA
V_in = 5 to 20V
I_load = 1 to 5mA
I₁₂ Source current at reference
voltage
V₁₂ = Vref-0.3V
POWER GOOD AND ENABLE FUNCTION
V₁₆,V₁₁ RUN1, RUN2, enable voltage
High level
V₁₆,V₁₁ RUN1, RUN2, disable voltage
Low level
T₁₀ Power good delay
CRST=100nF
T₂₇,T₃₀ Shutdown delay time before LS CRST=100nF
activation (except for over voltage
fault)
CRST timing rate
V₁₂ = Vref-0.3V
Power good high level
I_POWEROK = 40µA
Power good low level
I_POWEROK = 320µA
SYNCHRONIZATION
V₁₅ Synchronization pulse width
Fsw = 1MHz
Synchronization input voltage
(falling edge)
I_POWEROK = 320µA
L5994 - L5994A
Min. Typ. Max. Unit
0.5
V
30
mA
2.44 2.5 2.56
V
4.5
20
V
2
µA
16
V
12.88 13.7 14.52 V
1.5
µs
5.0
5.3
5.5
V
25
mA
70
4.2 4.53 4.8
V
2.45 2.5 2.55
V
2.425 2.5 2.575
15
mA
2.4
V
0.8
V
115 147 180 ms
115
147
180
ms
1.47
ms/nF
4.1
V
0.4
V
400
ns
5
V
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