SANYO LV5026M

Ordering number : ENA1950A
Bi-CMOS IC
LV5026M
LED Driver IC
Overview
LV5026M is a High voltage LED drive controller which drives LED current up to 3A with external MOSFET.
LV5026M is realized very simple LED circuits with a few external parts. It corresponds to various wide dimming
controls including the TRIAC dimming control.
Note) This LV5026M is designed or developed for general use or consumer appliance. Therefore, it is NOT permitted
to use for automotive, communication, office equipment, industrial equipment.
Functions
• High voltage LED controller
• Short protection circuit
• Various Dimming Control
• Selectable reference Voltage
-TRIAC & Analog Input & PWM Input
-Internal 0.605V & External Input Voltage
• Soft Start function
• Low noise switching system/skip frequency function
• Built-in TRIAC stabilized function
- 5 stages skip mode Frequency
• Built-in circuit of detection of overvoltage of CS pin.
- Soft driving
• Selectable Switching frequency [50kHz or 70kHz, open: 50kHz]
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum input voltage
Symbol
Conditions
VIN max (Note1)
REF_OUT, REF_IN, RT, CS,
Ratings
Unit
-0.3 to 42
V
-0.3 to 7
V
PWM_D, ACS
OUT1 pin
VOUT_abs
-0.3 to 42
V
OUT2 pin
VOUT2_abs
-0.3 to 42
V
Allowable power dissipation
Pd max
1.0
W
With specified board*
Continued on next page.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment. The products mentioned herein
shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life,
aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system,
safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives
in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any
guarantee thereof. If you should intend to use our products for new introduction or other application different
from current conditions on the usage of automotive device, communication device, office equipment, industrial
equipment etc. , please consult with us about usage condition (temperature, operation time etc.) prior to the
intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely
responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer ' s products or
equipment.
D0711 SY PC/41311 SY 20110330-S00004 No.A1950-1/17
LV5026M
Continued from preceding page.
Parameter
Symbol
Conditions
Ratings
Unit
150
°C
Topj (Note2)
-30 to +125
°C
Tstg
-40 to +150
°C
Junction temperature
Tj
Operating junction temperature
Storage temperature
*1 Specified board: 58.0mm × 54.0mm × 1.6mm (glass epoxy board)
Note1) Absolute maximum ratings represent the values which cannot be exceeded for any length of time.
Note2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current, high
voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.
Recommended Operating Conditions at Ta = 25°C
Parameter
Input voltage
Symbol
Conditions
Ratings
VIN
Unit
8.5 to 24
V
* Note : supply the stabilized voltage.
Electrical Characteristics at Ta = 25°C, VIN = 12V, unless otherwise specified.
Parameter
Symbol
Ratings
Conditions
Unit
min
typ
max
0.585
0.605
0.625
Reference voltage block
Built-in reference voltage
VREF
VREF VIN line regulation
VREF_LN
VIN = 8.5 to 24V
Reference output voltage
REFOUT
IREFOUT = 0.5mA
- Maximum load
REFOUT_MAX
- equivalent output impedance
REFOUT_RO
±0.5
V
%
3.0
V
0.5
mA
Ω
10
Under voltage lockout
Operation start Input voltage
UVLOON
Operation stop input voltage
UVLOOFF
Hysteresis voltage
UVLOH
8
6.3
9
10
V
7.3
8.3
V
1.7
V
Oscillation
Frequency
FOSC1 Switch voltage
FOSC1
RT =OPEN
40
50
60
kHz
FOSC2
RT = REF_OUT
55
70
85
kHz
5
V
VOSC1
2
FOSC2 Switch voltage
VOSC2
Maximum ON duty
MAXDuty
93
0.5
V
VIO_VR
1
10
mV
VIO_RI
1
10
mV
%
Comparator
Input offset voltage
(Between CS and VREF)
Input offset voltage
(Between CS and REFIN)
Input current
IIOSC
160
IIOREF
CS pin max voltage
VOM
malfunction prevention mask
TMSK
nA
80
nA
1
150
V
ns
time
PWM_D circuit
OFF voltage
VOFF
2
5
V
ON voltage
VON
0
0.6
V
Thermal protection circuit
Thermal shutdown temperature
TSD
*Design guarantee
165
°C
Thermal shutdown hysteresis
ΔTSD
*Design guarantee
30
°C
1000
mA
Drive Circuit
OUT sink current
IOI
500
OUT source current
IOO
120
Minimum On time
TMIN
200
mA
300
ns
Continued on next page.
No.A1950-2/17
LV5026M
Continued from preceding page.
Parameter
Symbol
Ratings
Conditions
min
typ
Unit
max
TRIAC Stabilization circuit
Threshold of OUT2
VACS
OUT2 = High [less than right record]
2.8
3.0
3.2
V
OUT2 sink current
IO2I
VIN = 12V, OUT2 = 6V
0.6
mA
OUT2 source current
IO2O
VIN = 12V, OUT2 = 6V
0.6
mA
UVLO mode VIN current
ICCOFF
VIN < UVLOON
80
Normal mode VIN current
ICCON
VIN > UVLOON, OUT = OPEN
0.6
VCC current
120
μA
mA
VIN over voltage protection circuit
VIN over voltage protection
voltage
VINOVP
VIN current at OVP
IINOVP
VIN = 30V
24
27
30
V
0.7
1.0
1.5
mA
CS terminal abnormal sensing circuit
Abnormal sensing voltage
CSOCP
1.9
V
*: Design guarantee (value guaranteed by design and not tested before shipment)
Package Dimensions
unit : mm (typ)
3086B
5
6.4
1
1.7max
4.4
6
0.63
5.0
10
0.1 (1.5)
0.15
0.35
1.0
(0.5)
SANYO : MFP10S(225mil)
Pin Assignment
6 ACS
RT 1
REF_OUT 2
REF_IN 3
7 OUT2
LV5026M
8 VIN
CS 4
9 OUT
PWM_D 5
10 GND
(Top view)
No.A1950-3/17
LV5026M
Block Diagram
VIN
Built-in
REGULATOR
REF_OUT
UVLO
TSD
3.0V
OVP
REFERENCE
VOLTAGE
0.61V
OSCILATOR
S
+
-
CS
REF_IN
Q
CONTROL
LOGIC
R
Current Limit
Comparater
OUT
Short
Protection
Circuit
-
ACS
OUT2
+
AC_Voltage sense
Comparater
PWM_D
RT
GND
Sample Application Circuit
Non isolation
F1
AC
INPUT
C2
-
+
D3
U1
9 OUT2
L
8 LV5026M
VCC
10
ACS
OUT 7
R2
2 REF_OUT
3
4
REF_IN
CS
5
PWM_D
1 RT
GND
6
Q1
R1
R3
Isolation
F1
AC
INPUT
D1
C2
-
+
L1
NP
D3
U1
9 OUT2
LED
9pcs
10
ACS
OUT 7
R2
2 REF_OUT
3
4
REF_IN
CS
5
PWM_D
1 RT
GND
6
RD0306
C13
NS
ND
8 LV5026M
VCC
D7
Q1
R1
R3
No.A1950-4/17
LV5026M
Pin Functions
Pin No.
1
Pin name
RT
Pin function
Equivalent circuit
Switching frequency selection pin.
VREF-OUT
(3V typ)
L or Open : 50kHz switching,
H: 70 kHz switching.
RT
In case of 70kHz,connect RT pin to REFOUT pin.
1kΩ
on time
GND
2
REF_OUT
Built-in 3V Regulate out Pin.
VIN
If this function isn’t used, please connect to nothing.
VREF-OUT
(3V typ)
GND
3
REF_IN
External LED current Limit Setting pin. If less than
VIN
VREF (0.61V) voltage is input, Peak current value is
used at the input voltage. If more than REF_IN voltage
is input, it is done at VREF voltage. If this function isn’t
used, please connect nothing.
CS
REF_IN
GND
4
CS
LED current sensing in. If this terminal voltage
VIN
exceeds VREF (Or REF_IN), external FET is OFF.
And if the voltage of the terminal exceeds 1.9V,
LV5026M turns to latch-off mod
CS
REF_IN
GND
5
PWM_D
PWM Dimming pin.L or open: normal operation,
H: Stop operation.
VIN
PWM_D
200kΩ
700kΩ
GND
6
GND
GND pin.
7
OUT
Driving the external FET Gate Pin.
8
VIN
VIN
Power supply pin. Operation
: VIN > UVLOON Stop: VIN < UVLOOFF
OUT
Switching Stop : VIN > VINOVP
GND
9
OUT2
This pin drive the FET which is stabilized the TRIAC
VIN
dimming application.
If ACS is less than 3V, OUT2 turn High voltage.
If this function isn’t used, please connect nothing.
1kΩ
OUT2
GND
10
ACS
ACS pin senses AC Voltage.
If this function isn’t used, please connect GND.
VIN
ACS
GND
No.A1950-5/17
LV5026M
LED current and inductande setting
• Relation ship beween REF_IN and CS pin voltage(Power Factor Crrection(PFC))
The output current value is the average of the current value that flows during one cycle. The current value that flows into
coil is a triangular wave shown in the figure below. Make sure to set Ipk so that (average of current value at one cycle)
is equal to (LED current value).Ipk is set by the relationship between REF_IN voltage and Rcs voltage.
This relationship make Power Factor Correction (PFC).Therefore, it is available to make LED current a sine curve.
• Setting Zener voltage
Vzd depend on LED voltage (VF). Choose Zener diode around Vf (LED voltage).When VAC voltage is lower than Vf,
LED operation is not normal. Using Zener diode prevents incorrect operating during VAC voltage lower than Vf. In
detail, refer to [LED current and inductance setting]
In case of REF_IN pin open, this error amplifier negative input(-) is under control of internal VREF voltage
(0.605Vtyp).
FET current
a blockdiagram in outline
Vac
L
R1
CLK
Vzd
REF_IN
CS
+
-
OUT
VREF (0.605V typ)
Q
REF_IN
RESET
FET current
VREF
(0.605V typ)
R2
T
ON
Rcs
FET
Ton
Ipk =
Toff
OFF
R2
(Vac-Vzd)× R1+R2
Rcs
Ipk: peak inductor current
Vf: LED forward voltage drop
Vac: effective value, R.M.S value
VREF: Built-in reference voltage (0.605V)
VREF_IN: REF_IN voltage (6 pin)
Rs: External sense resistor
Vzd: Zener diode voltage (REF_IN pin)
No.A1950-6/17
LV5026M
LED current and inductance setting
It is available to use both no-isolation and isolation applications.
(For non-isolation application)
The output current value is the average of the current value that flows during one cycle. The current value that flows into
coil is a triangular wave shown in the figure below. Make sure to set IL_PK so that (average of current value at one cycle)
is equal to (LED current value).
Vac
Inductor current
LED
Vac
a blockdiagram in outline
REF_IN
VREF (0.605V typ)/built-in reference
L
R1
CLK
Vzd
REF_IN
CS
+
-
Q
RESET
ILED slope is proportion to
Vac voltage (REF pin voltage)
OUT
VREF
(0.605V typ)
T
ON
FET
R2
OFF
Rcs
Ipk = (Vac-Vf)/L × T_c
= Vf/L × T_d
Ipk
IL = Vac/L × T
IL = Vf/L × T
Inductor
current
T_c
FET_on
Given that the period when current flows into coil is
T_d
FET_off
T (1cycle)
Ipk: peak inductor current
Vf: LED forward voltage drop
Vac: effective value(R.M.S value)
VREF: Built-in reference voltage (0.605V)
VREF_IN: REF_IN voltage (6 pin)
Rs: External sense resistor
Vzd: Zener diode voltage (REF_IN pin)
T_c+T_d
DutyI =
T
1
Ipk × 2 × (Duty × T)/T = ILED
2 × ILED
VREF_IN
Ipk × DutyI
(1) since Ipk × Rcs
VFEF_IN DutyI × VFEF_IN
=
(2)
Rcs ×
2ILED
Ipk
Since formula for LED current is different between on period and off period as shown above,
Vac-Vƒ
Vƒ
L × T_c = L × T_d (3)
Since T_c + T_d = DutyI × T, T_c = DutyI × T - T_d
Ipk ×
(4)
Vac-Vƒ
Based on the result of (3) and (4), T_d = DutyI × T × Vac
(5)
To obtain L from the equation (1), (3), (5),
Vƒ × DutyI
Vac - Vƒ
Vƒ
1
Vac - Vƒ
× DutyI × T = Vac =
×
× Vac × (DutyI)2 (6)
2 × ILED
2 × ILED ƒosc
Since LED and inductor are connected in serial in non-isolation mode, LED current flows only when AC voltage exceed
VF.
L×
No.A1950-7/17
LV5026M
√2 × Vrms
VF
Vac
(AC voltage, R.M.S)
Inductor current
Arcsin (Vf/√2Vrms)
Arcsin (Vf/√2Vrms)
Arcsin (√2Vrms/√2Vrms)
=90 (Deg)
Given that the ratio of inductor current to AC input is DutyAC.
Vƒ
90 - arcsin ( 2Vrms)
√
DutyAC =
90
Since the period when the inductor current flows are limited by DutyAC, the formula (6) is represented as follows:
2
Vƒ
90 - arcsin ( 2Vrms)
√
Vƒ
1
Vac - Vƒ
L=
×
× V
× (DutyI)2 ×
(7)
90
2 × ILED ƒosc
IN
No.A1950-8/17
LV5026M
(for Isolation circuit)
Using the circuit diagram below, the wave form of the current that flows to Np and Ns is as follows.
Current waveform flows to primary side and secondary.
Vac
a blockdiagram in outline
Ip
(Primary side current)
LP
(Np)
Ls
(Ns)
Vac
REF_IN
R1
CLK
Vzd
REF_IN
+
-
CS
VREF (0.605V)typ
Q
RESET
Ip (primary side)
OUT
Ip slope is proportion to
Vac voltage (REF pin voltage)
T
ON
VREF
(0.605V typ)
R2
Rcs
FET
OFF
Is
(Secondary side current)
Is (Secondary side current)
T
Ipk_p = Vac/Lp × Ton_p
Ipk_p
Primary
side
Ip = Vac/Lp × Ton_p
FET_ON
(Ton_p)
FET_OFF
T(1cycle)
Ipk_s = Vf/Ls × Ton_s
Ipk_s
Is = Vf/Ls × Ton_s
Secondary
side
Iout
(Ton_s)
[Inductance Lp of primary side and sense resistor Rs]
If a peak current flow to transformer is represented as Ipk_p, the power (Pin) charged to the transformer on primary side
can be represented as:
1
Pin = 2 × Lp × (Ipk_p)2 × ƒosc (11)
Vac
Ipk_p = Lp × Ton_p (12)
Vac2 × Ton_p2 × ƒosc Vac2 × Don_p2
Lp =
=
2 × Pin
2 × Pin× ƒosc
(Don_p =
(13)
Ton_p
T = Ton_p × ƒosc),
To substitute the following to the formula below,
...η = Pout
Pin
∴Lp =
(14)
Vac2 × Ton_p2 × ƒosc × η Vac2 × Don2 × η
=
2 × Pout
2 × Pout × ƒosc
(15)
No.A1950-9/17
LV5026M
Sense resistor is obtained as follows.
Rs =
VREF_IN VREF_IN × Lp VREF_IN × Lp
Ipk_p = Vac × Ton_p = Vac × Don_p × T
(16)
[Inductance Ls of secondary side]
Since output current Iout is the average value of current flows to transformer of secondary side
Iout = Ipk_s ×
Ton_s 1 Ipk_s × Don_s
Ton_s
×
=
(Don_s
=
T
2
2
T = Ton_s × ƒosc)
Vout
Vout Don_s
Ipk_s = Ls × Ton_s = Ls =
ƒosc
(17)
(18)
Vout × T × Don_s2 Vout × Don_s2 Vout2 × Don_s2
=
=
(19)
2 × Iout
2 × Iout × ƒosc 2 × Pout × ƒosc
Calculation of the ratio of transformer coil on primary side and secondary side
Since ratio and inductance of transformer coil is
Ls =
Ns √Ls
Np = √Lp
(20)
substituted equations (15), (19) for (20)
Np Vac
Don_p
∴ Ns = Vout × √η × Don_s
(21)
Calculation of transformer coil on primary side and secondary side
N=
Vac × 108
(22)
2 × ΔB × Ae × ƒosc
ΔB: variation range of core flux density [Gauss]
Ae: core section area [cm2]
To use Al (L value at 100T),
N=
√Al × 10
L
2
(23)
L: inductance [μH]
Al: L value at 100T [uH/N2]
lg (Air gap) is obtained as follows:
lg =
μr μ0 N2 Ae 102
L
(24)
μr: relative magnetic permeability, μr = 1
μ0: vacuum magnetic permeability μ0 = 4π*10-7
N: turn count [T]
Ae: core section area [m2]
L: inductance [H]
No.A1950-10/17
LV5026M
Bleeder current cuircuit for TRIAC dimmer
1. Operating voltage setting
ACS pin voltage set operating voltage at OUT2. ACS pin threshold volage is 3V typ.
OUT2 operating voltage is set by R1 and R2. R1 and R2 is determined below.
R2
ACS = Vac × R1+R2
2. Bleeder current setting
Rd set hold current at Triac dimmer.
Bleeder current is set at Rd depending on Triac dimmer.
a blockdiagram in outline
R1
R2
ACS
a blockdiagram in outline
+
Triac dimmer, OFF
Bleeder circuit, ON (OUT2; high)
VAC voltage is Low,
OUT2 is High voltage
Rd
OUT2
Vac
VACS
(3V typ)
VACS (3V typ)
ACS
OUT2
off
on
off
on
off
on
min
on
on
min
on
on
OUT
No.A1950-11/17
LV5026M
Description of operation
protection function
tilte
outline
monitor point
1
UVLO
Under voltage lock out
2
OCP
Over current protection
CS voltage
3
OVP
Over voltage protection
VCC voltage
4
OTP
Over Temperature Protection
PN Junction temperature
(TSD)
(Thermal Shut Down)
note
VCC voltage
available FET current
1. UVLO (Under voltage lock out)
If VIN voltage is 7.3V or lower, then UVLO operates and the IC stops. When UVLO operates, the power supply current
of the IC is about 80μA or lower. If VIN voltage is 9V or higher, then the IC starts switching operation.
VIN
voltage
B
UVLOON
(9V typ)
VCC
voltage
A
UVLOOFF
(7.3V typ)
Outputstage
time
on
off
on
2. UVLO (Under voltage lock out)
The CS pin sense the current through the MOS FET switch and the primary side of the transformer. This provides an
additional level of protection in the event of a fault. If the voltage of the CS pin exceeds VCSOCP (1.9V typ) ( A ), the
iternal comparator will detect the event and turn off the MOSFET. The peak switch current is calculated
Io (peak) [A] = VSOCP [V]/Rsense [Ω]
The VCC pin is pulled down to fixed level, keeping the controller lached off.The lach reset occurs when the user
disconnects LED from VAC and lets the VCC falls below the VCC reset voltage, UVLOOFF (7.3V typ)( B ). Then
VCC rise UVLOON (9V typ) ( C ), restart the switching.
CS
voltage
A
C
CSOCP (1.9V typ)
Time
VIN
voltage
B
UVLOON (9V typ)
Time
UVLOFF (7.3V typ)
Outputstage
on
off
on
No.A1950-12/17
LV5026M
3. OVP (Over voltage protection)
If the voltage of VIN pin is higher than the internal reference voltage VINOVP (27V typ), switching operation is
stopped.
The stopping operation is kept until the voltage of VIN is lower than 7.3V. If the voltage of VIN pin is higher than 9V,
the switching operation is restated.
VIN
voltage
A OVP
B OVP reset
C Operation start
27V typ
9V typ
7.3V typ
Time
Outputstage
Time
on
off
on
4. TSD (Thermal shut down protection)
The thermal shutdown function works when the junction temperature of IC is 165°C (typ) ( A ), and the IC switching
stops. The IC starts switching operation again when the junction temperature is 135°C typ ( B ) or lower.
Tj
(Junction tmperature)
165°C
135°C
TSD (design target)
A
B
Time
Outputstage
Time
on
off
on
Skip frequency function
LV5026M contains the skip frequency function for reduction of the peak value of conduction noise. This function
changes the frequency as follows.
Skip frequency function
VIN
UVLO unlocked
OUT
45k
55k
52.5k
50k
47.5k
45k
Switching frequency is changed as follows.
… ×0.9 → ×1.1 → ×1.05 → ×1 → ×0.95 → ×0.9 → ×1.1 …
It’s repeated by this loop.
No.A1950-13/17
LV5026M
PWM dimmer function
LED current can be adjusted according to Duty of PWM pulse input to PWM dimmer pin. PWM pulse is High (2V to
5V) then switching operation stops, and LED current stops flowing. PWM pulse is Low (under 0.6V), then switching
operation stop is released, and it returns to normal operation.
An outline of PWM_D pin
LED current vs PWM_D duty (outline)
LED
current
PWM_D
max
Threshold voltage, 1.5V (typ).
(note) at PWM_D pin, input voltage is,
2V avove - output OFF
0.6V below - output ON
0
0 [%]
AC
PWM_D
100 [%]
PWM_D
H
L
PWM_D Duty
(High side) [%]
Outputage
ON
OFF
H
L
OUT
(FET gate)
PWM_D
OUT
(FET gate)
FET current
(CS voltage)
No.A1950-14/17
LV5026M
VREF – Ta
3.2
Reference output voltage, REFOUT -- V
Built-in reference voltage, VREF -- V
0.63
0.62
0.61
VIN = 8.5V
VIN = 12V
VIN = 24V
0.6
0.59
0.58
--50
0
50
100
REFOUT – Ta
IREF_OUT = 0.5mA
3.1
3
2.9
2.8
--50
150
0
UVLOON, UVLOOFF – Ta
10
UVLOON
7
6
0
50
100
2
1.5
1
0.5
0
--50
150
0
FOSC1 – Ta
100
150
FOSC2 – Ta
80
=
V 24V
I
.5V N =
12
V
70
V
IN
65
=8
V 1
24 =
IN
V
V IN
5V
8.
=
N
VI
=
75
V
IN
2V
45
50
Ambient temperature, Ta -- °C
55
50
150
2.5
Ambient temperature, Ta -- °C
60
Frequency, FOSC1 -- kHz
Hysteresis voltage, UVLOH -- V
8
5
--50
100
UVLOH – Ta
3
UVLOOFF
9
50
Ambient temperature, Ta -- °C
Frequency, FOSC2 -- kHz
Operation start input voltage,Operation stop input voltage,
UVLOON, UVLOOFF -- V
Ambient temperature, Ta -- °C
40
--50
0
50
100
60
--50
150
Ambient temperature, Ta -- °C
VIO_VR – Ta
100
150
VOFF, VON – Ta
2
0.003
1.8
1.6
0.001
--0.001
1.4
--0.003
--0.005
--50
50
OFF voltage, ON voltage,
VOFF,VON -- %
Input offset voltage, VIO_VR -- V
0.005
0
Ambient temperature, Ta -- °C
1.2
0
50
100
Ambient temperature, Ta -- °C
150
1
--50
0
50
100
150
Ambient temperature, Ta -- °C
No.A1950-15/17
LV5026M
IOO – Ta
0.15
0.1
0.05
0
--50
IOI – VO
2000
OUT sink current, IOI -- mA
OUT source current, IOO -- A
0.2
Ta = -40°C
Ta = 0°C
Ta = 25°C
1500
Ta = 80°C
Ta = 125°C
Ta = 150°C
1000
500
0
0
50
100
150
0
1
Ambient temperature, Ta -- °C
VACS – Ta
3.1
3
2.9
2.8
--50
0
50
100
UVLO mode VIN current, ICCOFF -- μA
OUT2 source current, IO2O -- mA
1
0.5
100
150
Ambient temperature, Ta -- °C
50
ICCOFF – Ta
150
100
50
0
--50
0
50
100
150
Ambient temperature, Ta -- °C
ICCON – Ta
2
Normal mode VIN current, ICCON -- mA
0
200
50
150
0.5
Ambient temperature, Ta -- °C
IO2O – Ta
0
100
1
0
--50
150
1.5
0
--50
4
1.5
Ambient temperature, Ta -- °C
2
3
IO2I – Ta
2
OUT2 sink current, IO2I -- mA
Threshold of OUT2, VACS -- V
3.2
2
Output voltage, VO -- V
1.5
VIN = 24V
VIN = 12V
1
VIN = 8.5V
0.5
0
--50
0
50
100
150
Ambient temperature, Ta -- °C
No.A1950-16/17
VINOVP – Ta
30
29
28
27
26
25
--50
0
50
CSOCP – Ta
3
Abnormal sensing voltage, CSOCP -- V
VIN over voltage protection voltage, VINOVP -- V
LV5026M
100
Ambient temperature, Ta -- °C
150
2.5
2
1.5
1
0.5
0
--50
0
50
100
150
Ambient temperature, Ta -- °C
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PS No.A1990-17/17