
LB11691
No.A0879-3/21
Continued from preceding page.
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Charge pump output (VB pin)
Output voltage
VBOUT
46.0
48.0
50.5
V
CP1 pin
Output H-level voltage
VOH (CP1)
VOL (CP1)
ICP1 = -2mA
VCC-1.9
VCC-1.4
V
Output L-level voltage
ICP1 = 2mA
1.5
2.0
V
Integrating amplifier
Input offset voltage
VIO (CONT)
-10
10
mV
Input bias current
IB (CONT)
-1
1
μ
A
Common-phase input voltage range
VICM
0
V5-1.7
V
Output H-level voltage
VOH (CONT)
VOL (CONT)
ITOC = -0.2mA
V5-1.1
V5-0.8
V
Output L-level voltage
ITOC = 0.2mA
0.8
1.1
V
Open loop gain
f (CONT) = 1kHz
45
51
dB
PWM oscillator (PWM pin)
Output H-level voltage
VOH (PWM)
VOL (PWM)
ICHG
2.75
3.0
3.25
V
Output L-level voltage
1.0
1.2
1.3
V
External C charge current
VPWM = 2.1V
-35
-25
-19
μ
A
Oscillation frequency
f (PWM)
C = 270pF
29
36
44
kHz
Amplitude
V (PWM)
1.6
1.8
2.1
Vp-p
TOC pin
Input voltage 1
VTOC1
Output duty 100%
2.72
3.0
3.30
V
Input voltage 2
VTOC2
Output duty 0%
0.99
1.2
1.34
V
Input voltage 1L
VTOC1L
Design target value*, 100% at V5 = 4.7V
2.72
2.80
2.90
V
Input voltage 2L
VTOC2L
Design target value*, 0% at V5 = 4.7V
0.99
1.08
1.17
V
Input voltage 1H
VTOC1H
Design target value*, 100% at V5 = 5.3V
3.08
3.20
3.30
V
Input voltage 2H
VTOC2H
Design target value*, 0% at V5 = 5.3V
1.11
1.22
1.34
V
Current limiting circuit (RF pin)
Limiter voltage
VRF
85
100
115
mV
Low-voltage protective circuit (LVS pin)
Operating voltage
VSDL
3.65
3.85
4.05
V
Cancellation voltage
VSDH
4.15
4.35
4.55
V
Hysteresis width
Δ
VSD
0.35
0.5
0.65
V
Heat shielding operation (overheat protection circuit)
Heat shielding operation
temperature
Hysteresis width
TSD
Design target value*
(junction temperature)
Design target value*
(junction temperature)
150
170
°
C
Δ
TSD
40
°
C
CSD circuit (CSD pin)
Output H-level voltage
VOH (CSD)
VOL (CSD)
ICHG1
3.2
3.6
4.0
V
Output L-level voltage
0.9
1.1
1.3
V
External C charge current
VCSD = 2.35V
-14
-10
-6
μ
A
External C discharge current
ICHG2
VCSD = 2.35V
7
11
15
μ
A
Oscillation frequency
f (CSD)
C = 0.01
μ
F
180
Hz
Amplitude
V (CSD)
2.2
2.5
2.75
Vp-p
Reset circuit (RES pin)
Reset operating voltage
VRESL
1.17
1.27
1.37
V
Reset canceling voltage
VRESH
1.37
1.5
1.63
V
Hysteresis width
Δ
VRES
0.20
0.23
0.26
V
HP pin
Output saturation voltage
VHPL
IO = 3mA
VHP = 42V
0.15
0.5
V
Output leak current
IHP leak
10
μ
A
* : Design target values and not tested.
Continued on next page.