TDA8931
Philips Semiconductors
Power comparator 1 × 20 W
Table 9:
Characteristics …continued
VP = 22 V; Tamb = 25 °C; fcarrier = 290 kHz; unless otherwise specified.
Symbol Parameter
Conditions
Min
Typ
Max
Unit
Power-up input: pin POWERUP
VIL
VIH
LOW-level input voltage
HIGH-level input voltage
with respect to CGND
with respect to CGND
Standby mode
-
-
0.8
V
3
11
-
-
7
V
Operating mode
-
VP
-
V
Vhys
II
hysteresis voltage
input current
0.5
30
V
VI = 5 V
-
40
µA
Enable input: pin ENABLE
VIL
VIH
Vhys
II
LOW-level input voltage
with respect to CGND
with respect to CGND
-
-
0.8
12
-
V
[1]
HIGH-level input voltage
hysteresis voltage
input current
3
-
-
V
0.3
30
V
VI = 5 V
-
40
µA
Internal stabilizer output: pin STABI
VO output voltage
with respect to VSSD
11
12
14
V
Comparator full differential input stage: pins INP and INN
Voff(i)(eq) equivalent input offset voltage
-
-
-
-
10
15
mV
mV
Vn(i)(eq)
equivalent input RMS-noise
voltage
20 Hz < fi < 20 kHz
Vi(cm)
common mode input voltage
VSSA
4
+
-
VDDA
5
−
V
Ii(bias)
bias input current
-
24
60
nA
Half supply voltage output for input circuitry: pin HVPI
VHVPI output voltage on pin HVPI Standby and Operating mode
0.5VP − 0.5VP
0.25
0.5VP +
0.25
V
Half supply voltage output to charge SE capacitor: pin HVP
VHVP
output voltage on pin HVP
Standby mode
0.5VP − 0.5VP
0.25
0.5VP +
0.25
V
Icharge
charge current of HVP capacitor
20
45
-
mA
Overtemperature protection (OTP)
TOTP overtemperature protection level
150
155
-
°C
Overvoltage protection (OVP)
VP(OVP)fix fixed OVP threshold level
level internal fixed
35
37.5
1.27
40
V
V
[2]
VOVP
Undervoltage protection (UVP)
VP(min) protection level minimum supply
voltage
Overcurrent protection (OCP)
adjustable OVP level
1.19
1.35
10
11
12
-
V
A
IOCP
overcurrent protection level
3.3
4.0
[1] VIH on pin ENABLE must not exceed VDDA
.
[2] The overvoltage protection can be controlled external (see Section 8.6.3).
9397 750 13847
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Preliminary data sheet
Rev. 01 — 14 January 2004
12 of 31
NXP [ NXP ]
