mc33197d ETC-unknow, mc33197d Datasheet - Page 2

• Manufacturer Part Number: mc33197d
• Description: Automotive Wash Wiper Timer
• Manufacturer: ETC-unknow

ELECTRICAL CHARACTERISTICS (
mate mean at T A = 25 C with V CC = 14 V at the time of initial device characteri
NOTES: 1. The oscillator frequency is defined by the current flowing through the external resistor R2. The voltage at the INT pin is (V CC /2 – V be ) and hence the
2
Functional Supply Voltage Range
Operating Supply Voltage Range
Standby Supply Current (V CC = 16 V, R2 = 68 k)
Supply Current INT Active (R3 = 2.5 k)
Supply Current Relay “On” (R2 = 68 k)
Supply Current INT and Relay “On” (R2 = 68 k, R3 = 2.5 k)
Oscillator Variations with Supply Voltage and Temperature (excluding
Relay Resistance
Output Voltage (I out = 200 mA)
Output Clamp Voltage (I out = 20 mA)
Oscillator Period Coefficient (T A = 25 C)
CONT Threshold (V CC = 13 V)
CONT Threshold (V CC = 16 V)
external component tolerances, C2 = 100 nF polyester capacitor)
(Notes 1 & 2)
10 V
8.0 V
V bb = 13 V (Note 3)
V bb = 13 V (INT Connected to Gnd) (Note 4)
V bb = 13 V (INT Connected to V bat , R1 = 220 ) (Note 4)
V bb
2. The oscillator stability with temperature is dependent on the temperature coefficients of the external components. If the capacitance value of the
3. The t b1 duration is given by coefficient 4 x R2 x C2 (t b1 duration = t b1 x 4 x R2 x C2).
4. The t b2 duration is given by coefficient x R3 x C2 (t b2 duration = t b2 x R3 x C2).
Gnd
Switch
current flowing through R3 is different if R3 is connected to V bb or to Gnd because of the voltage drop across resistor R1. This voltage drop causes
the oscillator coefficient for t b2 to be different for the two cases of INT terminated to Gnd or to V bb . Because of this, the oscillator coefficient is speci–
fied with a specific value of R1 whenever INT is connected to V bb . If R1 is changed, the coefficient will change. Also, any extra current through the
resistor R1 other than the current used by the device will cause timing deviations in t b2 timings (as in the case where two devices are sharing a
common R1 resistor).
external capacitor varies more than 5% over the parametric temperature range, the figures quoted for oscillator variation are not valid.
Int
V bb
V bb
16 V
16 V
R3
C2
R2
Characteristic
Osc2
INT
Osc1
Variable Current Sources
–40 C
This device contains 390 active transistors.
Representative Block Diagram
T A
Gnd
+125 C, 8.0 V
Ref
MC33197
C1
Comparator
Input
Input Comparator
V CC
with Hysteresis
V CC
Logic
zation.)
Symbol
V CCOP
V CCF
16 V, unless otherwise noted. Typical values reflect approxi-
K osc
V out
t b2g
t b2v
I CC
I CC
I CC
I CC
R L
V cl
t b1
V ih
V ih
MC33197
R1
MOTOROLA ANALOG IC DEVICE DATA
19.5
0.98
15.1
11.5
Ref
Min
Ref
CONT
8.0
8.0
6.0
60
–
–
–
–
–
–
–
–
W/W
Out
Wiper
V CC /2
Motor
Relay
R5
15.5
12.1
Typ
R4
4.0
7.0
7.5
0.9
1.0
10
10
15
–
–
–
–
–
V bb
V
Cont Switch
bb
R1 = 220
R2 = 22 k
R3 = 1.5 to 22 k
R4 = 4.7 k
R5 = 4.7 k
C1 = 47 F
C2 = 100 nF
Max
11.2
14.5
1.03
15.9
12.7
5.2
8.4
1.5
8.5
Water Pump Motor
18
16
22
–
–
–
–
M
Unit
mA
mA
mA
mA
%
V
V
V
V
V
V
–