Ordering number : ENA0357
LV5040V
Overview
Bi-CMOS IC
2ch step-down circuit
DC-DC Converter Controller
The LV5040V is a 2-channel step-down DC-DC converter controller IC.
Features
•
Provides dual step-down DC-DC converter controller circuits integrated on the same chip.
•
Provides an input UVLO circuit, an overcurrent detection function, an overtemperature detection function, soft start/soft
stop functions, and a startup delay circuit.
•
Output voltage monitoring functions (power good as well as OVP and UVP with timer latch functions)
•
Built-in cycle skip function that operates during rapid load changes
•
180° interleaved operation between phase 1 and phase 2 (supports multiphase drive in 2-phase parallel operation mode).
•
Supports synchronous operation between different devices (supports master/slave operation when multiple devices are
used).
Specifications
Maximum Ratings
at Ta = 25°C
Parameter
Supply voltage
Peak output current
Storage temperature
Allowable power dissipation
Operating temperature
HDRV1, HDRV2,
Allowable pin voltages
CBOOT1, CBOOT2
VIN, VLIN8, ILIM1, ILIM2,
KS1, KS 2, RSNS1, RSNS2,
SW1, SW2, VDD,
LDRV1, LDRV2, PGOOD
VLIN5
COMP1, COMP2, FB1, FB2,
SS, UV_DELAY, TD, CT, CLKO
Notes: Voltages are referenced to the SGND and PGND pins.
VP3
VP4
6
VLIN5+0.3
V
V
Symbol
VIN
IOUT
Tstg
Pd max
Topr
VP1
VP2
15
V
Ta = 25°C
Conditions
Ratings
15
±2
-55 to +150
1
-20 to +85
30
Unit
V
A
°C
W
°C
V
Any and all SANYO Semiconductor products described or contained herein do not have specifications
that can handle applications that require extremely high levels of reliability, such as life-support systems,
aircraft's control systems, or other applications whose failure can be reasonably expected to result in
serious physical and/or material damage. Consult with your SANYO Semiconductor representative
nearest you before usingany SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor assumes no responsibility for equipment failures that result from using products
at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor
products described or contained herein.
N1306 MS OT 20060206-S00003 No.A0357-1/7
LV5040V
Recommended Operating Conditions
at Ta = 25°C
Parameter
Supply voltage
Symbol
VIN
Conditions
Ratings
10 to 14
Unit
V
Electrical Characteristics
at Ta
=
25°C, VIN = 12V
Parameter
System
Comparator reference voltage
VREF
ICC1
ICC2
VLIN5
VIN = 10 to 14V
Tj = -20°C to 85°C (Design guarantee)
Current drain 1
TD = 5V, VIN = 12V
TD = 5V, VIN = 10 to 14V
Current drain 2
TD = 0V, VIN = 12V
TD = 0V, VIN = 10 to 14V
5V supply voltage
VIN = 10 to 14V, IVLIN5 = 0 to 5mA
Tj = -20°C to 85°C (Design guarantee)
8V supply voltage
VLIN8
VIN = 10 to 14V, IVLIN8 = 0 to 10mA
Tj = -20°C to 85°C (Design guarantee)
Overcurrent detection comparator
offset
Overcurrent detection reference
current source
Soft start source current
Soft start sink current
Soft start clamp voltage
UV_DELAY source current
UV_DELAY sink current
UV_DELAY threshold voltage
UV_DELAY operating voltage
VUVP detection hysteresis
Overvoltage detection
Overvoltage detection delay time
Output discharge transistor
on-resistance
Output Block
CBOOT leakage current
HDRVx and LDRVX source current
HDRVx and LDRVX sink current
HDRVx low side on-resistance
LDRVx low side on-resistance
Simultaneous on prevention
dead time 1
Simultaneous on prevention
dead time 2
Oscillator
Oscillator frequency
fOSC
DON max
Tj = -20°C to 85°C (Design guarantee)
Minimum on time
Sawtooth wave high side voltage
Sawtooth wave low side voltage
On time difference between
channels 1 and 2
Continued on next page.
TON min
VsawH
VsawL
∆T
dead
Fosc = 300kHz
Fosc = 300kHz
CT = 180pF
Tj = -20°C to 85°C (Design guarantee)
Maximum on duty
260
255
83
82
100
2.6
1
1
300
300
88
340
340
93
94
kHz
kHz
%
%
nS
V
V
%
Tdead2
HDRV off
→
LDRV on
70
nS
ICBOOT
ISCDRV
ISKDRV
RHDRV
RLDRV
Tdead1
LDRV off
→
HDRV on
VCBOOT = 7V
0.8
1.1
2.2
1.1
70
10
µA
A
A
Ω
Ω
nS
ISSSC
ISSSK
VSSTO
ISCUVD
ISKUVD
VUVD
VUVD op
∆VUVP
VOVP
VODLY
VSWON
7.5
107
75
UV_DELAY = 2V
UV_DELAY = 2V
2.5
0.4
ICL
VIN = 10 to 14V
Tj = -20°C to 85°C (Design guarantee)
TD = 5V
TD = 0V
9
8.7
-5
80
-10
200
3.2
5.0
1.0
2.4
80
1.5
111
1.0
15
30
117
85
7.5
2.5
10
11
11.3
-15
500
µA
µA
µA
µA
V
µA
mA
V
%
%
%
µS
Ω
VCLOS
1.201
1.195
3.4
3.3
1.2
1.1
4.75
4.70
7.6
7.5
±2
8
5
1.4
4.1
1.220
1.238
1.241
4.7
4.8
1.6
1.7
5.25
5.30
8.4
8.5
±7
V
V
mA
mA
mA
mA
V
V
V
V
mV
Symbol
Conditions
Ratings
min
type
max
Unit
No.A0357-2/7
LV5040V
Continued from preceding page.
Parameter
Error Amplifier
Error amplifier input current
COMP pin source current
IFB
ICOMPSC
Tj = -20°C to 85°C (Design guarantee)
COMP pin sink current
ICOMPSK
Tj = -20°C to 85°C (Design guarantee)
Error amplifier gm
Current detection amplifier gain
Logic Output
Sink current in the power good
low state
Leakage current in the power good
high state
TD pin threshold level
TD pin open voltage
TD pin source current during charge
TD pin sink current during discharge
CLKO high-level voltage
CLKO low-level voltage
Protection Functions
Thermal protection circuit operating
temperature
VIN UVLO release voltage
UVLO hysteresis
VUVLO
∆V
UVLO
8.9
9.3
0.5
9.7
V
V
TTSD
(Design guarantee)
175
°C
VONTD
VTDH
ITDSC
ITDSK
VCLKOH
VCLKOL
ICLKO = 1mA
ICLKO = 1mA
When the TD pin is stepped up
4.5
-2.5
0.8
0.7×VLIN5
0.3×VLIN5
2.4
5.0
-5
2
5.5
-7.5
5
V
V
µA
mA
V
V
IpwrgdH
VPGOOD = 6V
10
µA
IpwrgdL
VPGOOD = 0.4V
0.1
1.0
mA
gm
GISNS1,2
4.2
18
32
700
5.2
7.5
-200
-100
-100
200
-18
-32
nA
µA
µA
µA
µA
µmho
Symbol
Conditions
Ratings
min
type
max
Unit
Package Dimensions
unit : mm
3191B
9.75
30
16
5.6
7.6
1
0.65
(0.33)
0.22
15
0.15
1.5max
SANYO : SSOP30(275mil)
0.1
(1.3)
0.5
No.A0357-3/7
LV5040V
Pin Assignment
No.A0357-4/7
LV5040V
Block Diagram and Sample Application Circuit
No.A0357-5/7
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