DS1259S Maxim Integrated Products, DS1259S Datasheet
DS1259S
Manufacturer Part Number
DS1259S
Description
IC BATTERY MANAGER 16-SOIC
Manufacturer
Maxim Integrated Products
Datasheet
1.DS1259S.pdf
(5 pages)
Specifications of DS1259S
Function
Power Management
Battery Type
All Battery Types
Voltage - Supply
5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
16-SOIC (0.300", 7.50mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
FEATURES
PIN DESCRIPTION
NC
V
BAT
RST
GND
V
V
DESCRIPTION
The DS1259 Battery Manager Chip is a low-cost battery management system for portable and nonvolatile
electronic equipment. A battery connected to the battery input pin supplies power to CMOS electronic
circuits when primary power is lost through an efficient switch via the V
from the battery, the power-fail signal is active to warn electronic reset circuits of the power status.
Energy loss during shipping and handling is avoided by pulsing reset, thereby causing the battery to be
isolated from other elements in the circuits.
www.dalsemi.com
BF
PF
BAT
CCO
CCI
Facilitates uninterruptible power
Uses battery only when primary V
available
Low forward voltage drop
Power fail signal interrupts processor or write
protects memory
Consumes less than 100 nA of battery current
Low battery warning signal
Battery can be electrically disconnected upon
command
Battery will automatically reconnect when
V
Mates directly with DS1212 Nonvolatile
Controller x 16 Chip to back up 16 RAMs
Optional 16-pin SOIC surface-mount package
CC
is applied
- No Connect
- Battery Input Connection
- Battery Fail
- Battery Output
- Reset Input
- Ground
- Power Fail
- RAM Supply
- +5V Supply
Output Signal
Output Signal
CC
is not
1 of 5
PIN ASSIGNMENT
VBAT
GND
GND
BAT
RST
16-Pin DIP Package (300-mil)
16-Pin SOIC Package (300-mil)
See Mech. Drawings Section
BF
NC
VBAT
NC
GND
See Mech. Drawings Section
GND
BAT
RST
NC
BF
NC
Battery Manager Chip
2
3
4
5
6
7
8
1
1
2
3
4
6
5
7
8
CCO
pins. When power is supplied
16
15
14
13
12
10
11
16
15
14
13
12
10
11
9
9
VCCI
VCCI
NC
VCCO
VCCO
PF
NC
NC
VCCI
VCCI
NC
PF
NC
VCCO
VCCO
NC
DS1259
111999
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DS1259S Summary of contents
Page 1
FEATURES Facilitates uninterruptible power Uses battery only when primary V available Low forward voltage drop Power fail signal interrupts processor or write protects memory Consumes less than 100 nA of battery current Low battery warning signal Battery can be ...
Page 2
OPERATION During normal operation, V CCI V (Pins 12 and 13) through an internal switch at a voltage level of V CCO this time the power-fail signal ( the V falls below the trip point (V CCI signal is driven ...
Page 3
RESET TIMING Figure 2 TYPICAL APPLICATION Figure DS1259 ...
Page 4
ABSOLUTE MAXIMUM RATINGS* Voltage on Any Pin Relative to Ground Operating Temperature Storage Temperature Soldering Temperature * This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the ...
Page 5
POWER-DOWN/POWER-UP CONDITION NOTES: 1. All voltages are referenced to ground. 2. Load capacity is 50 pF. 3. Measured with Pins 11, 12, 13, and 3 open the point that is driven low may ...