Philips Semiconductors
Full bridge driver IC
Preliminary specification
UBA2032
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Internal oscillator
fbridge
∆fosc(T)
∆fosc(VDD)
kH
kL
kosc
Rext
bridge oscillating frequency
oscillator frequency variation
with respect to temperature
oscillator frequency variation
with respect to VDD
high level trip point
low level trip point
oscillator constant
external resistor to VDD
note 3
fbridge = 250 Hz and
Tamb = −40 to +150 °C
fbridge = 250 Hz and
VDD = 7.25 to 14 V
VRC(high) = kH × VDD
VRC(low) = kL × VDD
fbridge = 250 Hz
−
−
−10 0
100 kHz
+10 %
−10 0
+10 %
0.38 0.4 0.42
−
0.01 −
0.94 1.02 1.10
100 −
−
kΩ
Notes
1. The current is specified without commutation of the bridge. The current into pin HV is limited by a thermal protection
circuit. The current is limited to 11 mA at Tj = 150 °C.
2. The current is specified without commutation of the bridge and pin HV is connected to VDD.
3. The minimum frequency is mainly determined by the value of the bootstrap capacitors.
2002 Oct 07
11