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Specifications
Absolute Maximum Ratings at Ta=25 °C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
7V
VS max
24
V
Maximum output current
IO max
1.3
A
Allowable power dissipation
Pd max
Arbitrarily large heat sink
LB1889
12.5
W
Arbitrarily large heat sink
LB1889D
15.0
W
Independent IC
LB1889
0.77
W
Independent IC
LB1889M
0.95
W
Independent IC
LB1889D
3.0
W
Operating temperature
Topr
–20 to +75
°C
Storage temperature
Tstg
–55 to +150
°C
Allowable Operating Ranges at Ta=25 °C
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage
VS
5to22
V
VCC
4.5 to 5.5
V
Hall input amplitude
VHALL
Between Hall inputs
±30 to ±80
mV0-P
GSENSE input range
VGSENSE
Relative to control system GND
–0.20 to +0.20
V
Electrical Characteristics at Ta=25 °C, VCC =5 V, VS =15 V
Parameter
Symbol
Conditions
min
typ
max
Unit
VCC supply current
ICC
RL = ∞ (when stopped), VCTL =0V,VLIM = 0 V
12
18
mA
[Output]
Output saturation voltage
VOsat1
IO = 500 mA, Rf = 0.5 , Sink + Source
VCTL =VLIM = 5 V (with saturation prevention)
2.1
2.6
V
VOsat2
IO = 1.0 A, Rf = 0.5 , Sink + Source
VCTL =VLIM = 5 V (with saturation prevention)
2.6
3.5
V
Output leakage current
Ioleak
1.0
mA
[FR]
FR pin input threshold voltage
VFSR
2.25
2.50
2.75
V
FR pin input bias current
Ib (FSR)
–5.0
A
[Control]
CTLREF pin voltage
VCREF
2.37
2.50
2.63
V
CTLREF pin input range
VCREFIN
1.70
3.50
V
CTL pin input bias current
Ib (CTL)
VCTL = 5 V, CTLREF : Open
8.0
A
CTL pin control start voltage
VCTL (ST)
With Rf = 0.5
,VLIM =5V,IO ^ 10 mA,
Hall input logic fixed, (u, v,w=H,H,L)
2.20
2.35
2.50
V
CTL pin control switch voltage
VCTL (ST2) Rf = 0.5 ,VLIM = 5 V
3.00
3.15
3.30
V
CTL pin control Gm1
Gm1 (CTL)
With Rf = 0.5
, IO = 200 mA,
Hall input logic fixed, (u, v,w=H,H,L)
0.52
0.65
0.78
A/V
CTL pin control Gm2
Gm2 (CTL)
With Rf = 0.5
, VCTL = 200 mV,
Hall input logic fixed, (u, v,w=H,H,L)
1.20
1.50
1.80
A/V
[Current Limit]
LIM current limit offset voltage
Voff (LIM)
With Rf = 0.5
,VCTL =5V,IO ^ 10 mA,
Hall input logic fixed, (u, v,w=H,H,L)
140
200
260
mV
LIM pin input bias current
Ib (LIM)
With VCTL = 5 V, CTLREF : Open,
VLIM =0V
–2.5
A
LIM pin current limit level
I lim
With Rf = 0.5
,VCTL =5V,VLIM = 2.06 V,
Hall input logic fixed, (u, v,w=H,H,L)
830
900
970
mA
[Hall Amplifier]
Hall amplifier input offset
voltage
Voff (HALL)
–6
+6
mV
Hall amplifier input bias current
Ib (HALL)
1.0
3.0
A
Hall amplifier common-mode
input voltage
Vcm (HALL)
1.3
3.3
V
Continued on next page.
LB1889, 1889M, 1889D
No.5131 - 2/13