Ordering number : ENA0845A
LV8800V
Bi-CMOS IC
For Notebook PC
LV8800V
Electrical Characteristics Ta = 25C, V = 5V, unless specifically noted
CC
Ratings
Parameter Symbol Conditions Unit
min typ max
Power supply current 1 I 1 PWM pin = V 1.8 2.5 mA
CC CC
Power supply current 2 I 2 PWM pin = 0V 20 50 A
CC
Charge pump output
Output voltage VG 9.8 V
Output block
Source Ron (H) I = 0.5A, VG = 9.5V 0.6 1.0
O
Sink Ron (L) I = 0.5A, V = 5.0V 0.6 1.0
O CC
Source + sink Ron (H+L) I = 0.5A, V = 5V, VG = 9.5V 1.2 2
O CC
Startup oscillation pin
OSC pin charge current IOSC1 -2.5 A
OSC pin discharge current IOSC2 2.5 A
PWM input pin
PWM pin high-level input voltage VPWMH V 0.8 V V
CC CC
PWM pin low-level input voltage VPWML 0 V 0.2 V
CC
PWM pin input current IPWM PWM pin = 0V -50 A
PWM input frequency fPWM 20 25 50 kHz
FG output pin
FG output pin low-level voltage VFG When I = 0.5mA 0.1 0.2 V
O
Current limiter circuit
Limiter voltage VRf RF = 0.5 0.2250.25 0.275 V
Constraint protection circuit
Constraint protection detection time RDT1 0.5 1.0 s
Constraint protection release time RDT2 5 s
Thermal protection circuit
Thermal protection circuit operating TSD Design target * 150 180 C
temperature
Temperature hysteresis width TSD Design target * 30 C
* : Design target value and no measurement is made. The thermal protection circuit is incorporated to protect the IC from burnout or thermal destruction. Since
it operates outside the IC's guaranteed operating range, the customer's thermal design should be performed so that the thermal protection circuit will not be
activated when the fan is running under normal operating conditions.
Package Dimensions
unit : mm (typ)
3178B
Pd max Ta
1.0
3
Specified circuit board : 76.1114.31.6mm
5.2 glass epoxy board
0.8
16 9
0.6
0.4
0.35
18
0.2
0.65
0.15
(0.33)
0.22
0
30 20 0 20 25 40 60 80 95100
Ambient temperature, Ta C
SANYO : SSOP16(225mil)
No.A0845-2/7
(1.3)
0.1 4.4
1.5max 6.4
0.5
Allowable power dissipation, Pd max W