TPS60230
www.ti.com
SLVS516A – MAY 2004 – REVISED JUNE 2004
ELECTRICAL CHARACTERISTICS
V
I
= 3.6 V, EN1 = EN2 = V
I
, T
A
= -40°C to 85°C (unless otherwise noted)
PARAMETER
SUPPLY VOLTAGE AND CURRENT
V
I
I
Q
I
SD
V
OUT
Input voltage range
Operating quiescent current
Shutdown current
Overvoltage limit
Startup time
Softstart duration
f
η
Switching frequency
Efficiency
Shutdown temperature
Shutdown temperature hysteresis
Input current limit
CURRENT SINKS
I
Dx
I
Dx
Recommended maximum current per cur-
rent sink
Current into each current sink when Iset is
shorted to GND
Current matching between any two outputs
Line regulation
3.2 V
≤
V
I
≤
6.5 V
3.0 V
≤
V
I
≤
6.5 V, ISET shorted to GND
V
Dx
= 3.1 V, T
A
= 25°C
3.2 V
≤
V
I
≤
6.5 V, V
Dx
= 3.1 V, EN1 = EN2 = 1,
ISET = 80 µA
EN2 = 0, EN1 = 1
V
ISET
Iset
k
V
source
Reference voltage for current set
Recommended ISET pin current range
I
Dx
to Iset current ratio
Voltage at Dx to GND
EN2 = EN1 = 1, ISET = 80 µA
EN2 = 0, EN1 = 1
EN2 = 1, EN1 = 0
EN2 = 1, EN1 = 1
ENABLE 1, ENABLE 2
V
IH
V
IL
I
IKG
I
I
V
(UVLO)
EN1, EN2 high level input voltage
EN1, EN2 low level input voltage
EN1, EN2 trip point hysteresis
EN2 input leakage current
EN1 input current
Undervoltage lockout threshold
Undervoltage lockout hysteresis
Frequency range at PWM
Recommended ON-time for PWM signal
Shutdown delay time
Delay time when EN1 = EN2 go to GND after which
the TPS60230 shuts down completely
0.5
0
2.5
0.85
1.5
EN1, EN2 = GND or EN2 = V
I
, V
I
= 6.5 V
EN1 = V
I
, V
I
= 4.2 V
Input voltage falling
50
0.01
11
2.1
50
50
1
15
1.3
0.3
V
V
mV
µA
µA
V
mV
kHz
µs
ms
EN2 = 1, EN1 = 0
EN2 = 1, EN1 = 1
580
4
230
260
200
300
400
mV
200
400
600
620
130
280
µA
mV
25
50
–2% 0.4%
2%
±3%
mA
mA
EN2 = EN1 = 1, ISET = 100 µA
V
I
= 3.7 V, I
LED
= 15 mA each, V
DX
= 3.1 V
Temperature rising
0.75
I
O
= 0 mA to 75 mA
V
I
= 4.2 V, x1-mode, EN1 = EN2 = 1, ISET = 20 µA
I
O
= 0 mA, x1.5-mode
EN2 = EN1 = GND
LED1 unconnected, V
I
= 4.2 V
C
O
= 1 µF, I
DX
≥
0.9 I
DX
, set
2.7
200
2.1
0.1
5.5
375
160
1
83%
160
20
350
°C
°C
mA
1.25
1
6.5
V
µA
mA
µA
V
µs
µs
MHz
TEST CONDITIONS
MIN
TYP MAX
UNIT
CHARGE PUMP STAGE
3
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