RE46C190S16TF Microchip Technology, RE46C190S16TF Datasheet - Page 3

• Manufacturer Part Number: RE46C190S16TF
• Description: 3V E-Cal Photo S.D. IC 16 SOIC .150in T/R
• Manufacturer: Microchip Technology
• Type: CMOS Photoelectric Smoke Detector ASIC with Interconnect and Timer Moder

Specifications of RE46C190S16TF

• Product: Driver ICs - Various
• Supply Voltage (max): 5 V
• Supply Voltage (min): 2 V
• Supply Current: 1 uA
• Maximum Operating Temperature: + 60 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC-16
• Minimum Operating Temperature: - 10 C
• Output Current: - 4 mA
• Output Voltage: 8.5 V
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

TYPICAL BATTERY APPLICATION
 2010 Microchip Technology Inc.
RED
Battery
330
Note 1: C2 should be located as close as possible to the device power pins, and C1 should be located as close
R6
D4
V
3V
GREEN
BST
2: R3, R4 and C5 are typical values and may be adjusted to maximize sound pressure.
3: DC-DC converter in High Boost mode (nominal V
4: Schottky diode D1 must have a maximum peak current rating of at least 1.5A. For best results it should
5: Inductor L1 must have a maximum peak current rating of at least 1.5A.
100
TP1
R7
D5
as possible to V
and is therefore very sensitive to series resistance. Critical components of this resistance are the
inductor DC resistance, the internal resistance of the battery and the resistance in the connections from
the inductor to the battery, from the inductor to the LX pin and from the V
function properly under full load at V
not exceed 0.3 . The internal battery resistance should be no more than 0.5  and a low ESR capacitor
of 10 µF or more should be connected in parallel with the battery, to average the current draw over the
boost converter cycle.
have forward voltage specification of less than 0.5V at 1A, and low reverse leakage.
10 µF
C1
100
TP2
R1
100 µF
C3
V
DD
1 µF
C2
SS
Push-to-Test/
Chamber
D2
.
Smoke
Hush
D3
DD
= 2V, the total of the inductor and interconnect resistances should
1
2
3
4
5
6
7
8
TEST
TEST2
IRP
IRN
RLED
V
IRED
V
SS
DD
RE46C190
BST
IRCAP
GLED
FEED
V
= 9.6V) can draw current pulses of greater than 1A,
LX
BST
HS
HB
IO
16
12
15
14
13
10
11
9
9
10 µH
L1
1.5M
R4
C6
33 µF
D1
SS
R5
1 nF
330
pin to the battery. In order to
C5
RE46C190
To other Units
200K
R3
DS22271A-page 3
V
BST
4.7 µF
C4