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NCV890430MW50TXG

P1-P3P4-P6P7-P9P10-P10
NCV890430
www.onsemi.com
4
Table 3. ELECTRICAL CHARACTERISTICS
(V
IN
= 4.5 V to 28 V, EN = 5 V. Min/Max values are valid for the temperature range −40°C ≤ T
J
≤ 150°C unless noted otherwise,
and are guaranteed by test, design or statistical correlation.)
Parameter
Test Conditions Symbol Min Typ Max Unit
QUIESCENT CURRENT
Quiescent Current, Enabled
V
IN
= 13.2 V, no switching I
qEN
2.0 3.0 mA
Quiescent Current, Shutdown V
IN
= 13.2 V, V
EN
= 0 V, T
J
= 25 °C I
qSD
5.0 8.0
mA
UNDERVOLTAGE LOCKOUT − VIN
UVLO Start Threshold
V
IN
Rising V
UVLSTT
4.1 4.5 V
UVLO Stop Threshold V
IN
Falling V
UVLSTP
3.2 3.5 V
SOFT-START
Soft-Start Completion Time
t
SS
0.8 1.4 2.0 ms
OUTPUT VOLTAGE
Output Voltage during Regulation
100 mA < I
OUT
< 0.6 A
5.0 V Option
3.3 V Option
2.5 V Option
V
OUTreg
4.9
3.234
2.45
5.0
3.3
2.5
5.1
3.366
2.55
V
OSCILLATOR
Frequency
4.5 V < V
IN
< 18 V
20 V < V
IN
< 28 V
f
SW
f
SW(HV)
1.8
0.9
2.0
1.0
2.2
1.1
MHz
VBAT OVERVOLTAGE SHUTDOWN MONITOR
Overvoltage Stop Threshold
V
OV1SP
37 40 V
Overvoltage Start Threshold V
OV1ST
34.5 V
Overvoltage Hysteresis V
OV1HY
0.9 1.7 2.5 V
VIN FREQUENCY FOLDBACK MONITOR
Frequency Foldback Threshold
V
IN
Rising
V
IN
Falling
V
FLDUP
V
FLDDN
18.4
18
20
19.8
V
Frequency Foldback Hysteresis V
FLDHY
0.2 0.3 0.4 V
PEAK CURRENT LIMIT
Current Limit Threshold
I
LIM
1.5 1.7 1.9 A
Low-Side Current Limit Threshold V
SW
= 13.2 V I
LIMLS
1.5 2.1 2.7 A
POWER SWITCHES
High-Side Switch ON Resistance
R
DSON−HS
550 1000
mW
Low-Side Switch ON Resistance R
DSON−LS
300 550
mW
Leakage Current V
IN
to SW
EN = 0 V, V
SW
= 0
I
LKSWH
10
mA
Leakage Current SW to GND
EN = 0 V, V
SW
= V
IN
I
LKSWL
10
mA
Minimum ON Time Measured at SW Pin 2.5 V Option
3.3 V & 5.0 V Options
t
ONMIN
35
45
55
70
ns
Minimum OFF Time when Not 100% Duty
Cycle
Measured at SW Pin at f
SW
= 2 MHz t
OFFMIN
30 50 ns
Non-Overlap Time t
NOVLP
10 ns
SLOPE COMPENSATION
Ramp Slope (Note 2)
(With Respect to Switch Current)
4.5 V < V
IN
< 18 V
20 V < V
IN
< 28 V
S
ramp
S
ramp(HV)
1.05
0.45
1.5
0.70
1.95
0.95
A/ms
NCV890430
www.onsemi.com
5
Table 3. ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 4.5 V to 28 V, EN = 5 V. Min/Max values are valid for the temperature range −40°C ≤ T
J
≤ 150°C unless noted otherwise,
and are guaranteed by test, design or statistical correlation.)
Parameter UnitMaxTypMinSymbolTest Conditions
SHORT CIRCUIT FREQUENCY FOLDBACK
Switching Frequency in Short-Circuit
Condition
Lowest Foldback Frequency
Lowest Foldback Frequency − High V
IN
V
OUT
= 0 V, 4.5 V < V
IN
< 18 V
V
OUT
= 0 V, 20 V <V
IN
< 28V
f
SWAF
f
SWAFHV
450
225
550
275
650
325
kHz
HICCUP MODE
Hiccup Mode
V
SW
= 0 V, no switching f
SWHIC
24 32 40 kHz
Hiccup Mode 2 − SW Short to Battery V
SW
= 13.2 V f
SWHICLS
24 32 40 kHz
SYNCHRONIZATION
SYNC Input Resistance to Ground
V
SYNC
= 5.0 V R
H(SYNC)
50 200
kW
SYNC Input High Threshold Voltage V
HSYNC
2.0 V
SYNC Input Low Threshold Voltage V
LSYNC
0.8 V
SYNC High Pulse Width V
SYNC
> max V
HSYNC
t
HSYNC
40 ns
SYNC Low Pulse Width V
SYNC
< min V
LSYNC
t
LSYNC
40 ns
External SYNC Frequency 2.5 V Option
3.3 V & 5.0 V Options
f
SYNC
1.8
1.8
2.2
2.5
MHz
Master Reassertion Time Time from Last Rising SYNC Edge
to First Un-synchronized Turn-on.
t
I(SYNC)
650 ns
RESET
Reset Threshold
V
OUT
Decreasing
V
OUT
Increasing
K
RES_LO
K
RES_HI
91
91.5
93 95
97
%
Reset Hysteresis (Ratio of VOUT) K
RES_HYS
0.5 %
Leakage Current into RSTB Pin 1.0
mA
Noise-Filtering Delay From V
OUT
< V
RESET
to RSTB Pin
Going Low
t
RES_FILT
10 25
ms
Reset Delay Time I
RSTB
= 1.1 mA
I
RSTB
= 500 mA
I
RSTB
= 100 mA
t
RESET
4.0
19
1.0
5.0
24
6.0
29
ms
ms
ms
Reset Delay Modes Power Good Mode (No Delay)
Delay Mode
1000
600
mA
Reset Output Low Level I
RSTB
= 1.2 mA V
RESL
0.4 V
ENABLE
Logic Low Threshold Voltage
V
ENlow
0.8 V
Logic High Threshold Voltage V
ENhigh
2.0 V
EN Pin Input Current I
ENbias
8.0 30
mA
THERMAL SHUTDOWN
Thermal Shutdown Activation Temperature
(Note 2)
T
SD
155 190 °C
Thermal Shutdown Hysteresis (Note 2) T
HYS
5.0 20 °C
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
2. Not tested in production. Limits are guaranteed by design.
NCV890430
www.onsemi.com
6
TYPICAL CHARACTERISTICS
Figure 3. Measured Efficiency vs. Output
Current for 12 V Input Voltage*
Figure 4. Measured Efficiency vs. Output Current
In Frequency Foldback − 20 V Input Voltage*
OUTPUT CURRENT (mA)
5003002001000
0
10
20
50
60
80
100
EFFICIENCY (%)
5.0 V
30
40
70
90
400
OUTPUT CURRENT (mA)
0
10
20
50
60
80
100
EFFICIENCY (%)
30
40
70
90
600 5003002001000 400 60
0
Figure 5. Measured Reset Time vs. Reset
Current**
3.3 V
2.5 V
5.0 V
3.3 V
2.5 V
RESET CURRENT (mA)
0
5
10
25
30
40
50
RESET TIME (ms)
15
20
35
45
10006004002000 800 1200
*Efficiency Measurements completed with NCV890430 Demo Board and Bourns SRP4020TA−4R7M Inductor.
**Measurements completed with NCV890430 Demo board populated according to the Bill of Materials unless otherwise stated.
Figure 6. Synchronization with 90% Duty,
2.5 MHz Signal at SYNC Pin
Figure 7. Synchronization with 10% Duty,
1.8 MHz Signal at SYNC Pin
Figure 8. Master Reassertion Time when
2.5 MHz SYNC Signal Disconnected**
P1-P3P4-P6P7-P9P10-P10

NCV890430MW50TXG

Mfr. #:
Buy NCV890430MW50TXG
Manufacturer:
ON Semiconductor
Description:
Switching Voltage Regulators AUTOMOTIVE SWITCHER
Lifecycle:
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