lb1955 Sanyo Semiconductor Corporation, lb1955 Datasheet - Page 2

• Manufacturer Part Number: lb1955
• Description: Three-phase Brushless Motor Driver
• Manufacturer: Sanyo Semiconductor Corporation

Electrical Characteristics at Ta = 25°C, V
Note: * is provided for when X is the peak value at the 60° position of the lower side of the U
[Power Supply]
Current drain
IC internal power supply
[Output]
Output saturation voltage
Output saturation voltage 2
3-phase output current ripple
[Hall Amplifier]
Input offset voltage
Input bias current
Common-mode input voltage range
[Control]
VC pin input bias current
Control start voltage
Open-loop control gain
[PG]
PG Hall amplifier
input offset voltage
Peak hold charge current
PG comparator threshold
PG output high-level voltage
PG leakage current
[FG]
Back emf Schmitt input
hysteresis width
Ringing canceller Schmitt
input hysteresis width
FG output high-level voltage
FG leakage current
[TSD]
Thermal shutdown
operating temperature
Thermal shutdown
temperature hysteresis width
Parameter
V
V
I
I
Symbol
I
LEAKPG
V
V
LEAKFG
V
V
THPG
VHoff
G
SHCHG
TTSD
V
V
V
V
O(sat)
O(sat)
I
SCHG
SCHR
I
IHb
THVC
VCb
PGoff
TSD
Ior
HCM
PGH
CC
REF
MVC
FGH
1
2
V
I
V
I
V
I
V
V
R
With the Hall input logic fixed
R
With the Hall input logic fixed and VG shorted to RF
Design target
(U, V, W) = (L, L, H)
Design target*
In the back emf Schmitt input increasing direction, Design target
In the back emf Schmitt input decreasing direction, Design target
In the Schmitt input increasing direction, Design target
In the Schmitt input decreasing direction, Design target
FGR = 0 V
Design target
Design target
O
O
O
C
C
C
AGC
C
f
f
= 400 mA
= 800 mA
= 100 mA, R
= 0.47 , I
= 0.47 , I
= 0 V, LCTR = 6 V
= 5 V, R
= 5 V, R
= 0 V
= 1.4 V
CC
f
f
= 0
= 0
O
O
f
= 12 V
= 0.47
= 200 mA
10 mA
V
IN
Conditions
LB1955
, W
U
IN
IN
Sink side
Source side
Sink side
Source side
IN
1 Hall amplifier input: THPG = 1.17X.
min
4.75
2.25
0.72
–20
–10
–10
–10
–20
–10
7.0
2.2
4.5
4.5
–5
Ratings
typ
10.0
–1.3
117
100
180
180
5.0
2.5
0.9
30
15
0
0
0
0
max
13.0
5.25
2.75
1.08
+20
+10
+10
+20
+10
0.4
1.5
0.7
2.0
5.0
5.2
5.2
+5
10
No. 5452-2/7
5
Unit
mA
mV
A/V
mV
mV
mV
mV
mV
µA
µA
µA
µA
µA
µA
°C
°C
%
%
V
V
V
V
V
V
V
V
V