TDA5341 Datasheet, PDF (19/28 Pages) NXP Semiconductors – Brushless DC motor and VCM drive circuit with speed control

Philips Semiconductors
Brushless DC motor and VCM drive circuit
with speed control
Product specification
TDA5341
CHARACTERISTICS (RESET FUNCTION)
V_DD = 5 V; V_DD1 and V_DD2 > V_DD is not allowed; T_amb = 25 °C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
UVDIN1; pin 44
I_UVDIN1
load capacitance current to
control the reset pulse width
V_UVDIN1
input voltage threshold to
activate the reset output
−2.3
−1.7
2.4
2.55
UVDIN2; pin 54
V_UVDIN2
comparator voltage for
power-up and power-down
detection
I_UVDIN2
input current
RESETOUT; pin 43
V_PTH
t_dPU
power threshold voltage
power-up reset delay
t_dPD
t_PDW
t_W(min)
R_pu
V_OL
power-down reset delay
power-down reset pulse width
minimum output pulse width
pull-up resistance
LOW level output voltage
see Fig.8
V_UVDIN2 = 1.6 V
see Fig.9
C = 0.1 µF;
see Fig.9
see Fig.9
see Fig.9
C = 0.1 µF
I_OL = 8.5 mA
1.280 1.315
−0.5
−
−
4.25
100
150
−
−
1.0
−
100
−
6
10
−
−
MAX.
UNIT
−1.3
µA
2.75
V
1.340 V
+0.5
µA
−
V
200
ms
4
µs
4
µs
−
ms
14
kΩ
0.5
V
handbook, halfpage
R2
R1
VDD
UVDIN2
MGE818
under-voltage threshold = 1.32 × --⁽--R-----2--R---⁺--1---R----1----⁾-
Fig.8 Reset mode threshold.
1997 Jul 10
19